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 [Search a list of Patent Appplications for class 384]   CLASS 384,BEARINGS
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SECTION I - CLASS DEFINITION

GENERAL STATEMENT OF CLASS SUBJECT MATTER

This class is the generic class for devices, known as bearings, designed for general use, where one element continuously bears the weight of another, either suspended therefrom, or imposed thereon, and wherein there is either linear motion (e.g., a cross head) rotary motion (e.g., of a shaft or axle), or oscillating movement, (e.g., a lever) between the two elements. The bearings may have either sliding, or rolling contact with the supported member.

The class includes (a) supports for bearings where such supports are specially formed to receive, and are placed in combination with, bearings, and when not limited to any classified art; (b) antifriction means, as balls, or rollers, designed to receive a rotating shaft, or to be used in connection with a pivoted, sliding, or rotary element; and (c) lubricating devices wherein any of the above bearings are modified for receiving and supplying lubricant.

This class including methods pertaining to bearings, when not otherwise provided for.

(1) Note. Patents issued prior to 1950 have not in all instances been classified by their claimed disclosure so that placement of these older patents does not necessarily indicate lines of classification.
(2) Note. Necessary but not particularly sufficient criteria for inclusion in this class are that the "bearing" (1) have at least two moving parts that slide or roll against one another and (2) should be intended to reduce friction between significantly more massive elements than the bearing itself.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

Where the bearing forms but an element of a structure, and the claims are not limited to the bearing, or bearing support structure, see the appropriate art class.

Claimed compositions of matter even though particularly adapted for use as bearings, or composition, per se, claimed either alone, or with other claims to a bearing element, are classified in the appropriate composition class and cross-referenced here. Also where a product is claimed as a stock material, that is, without sufficient structure in the claims to limit the product to bearing use, it is classified elsewhere.

Many objects, such as, auto wheels, conveyor rollers or etc., theoretically meet the criteria in set forth in the Class Definition, General Statement of the Class Subject Matter, in the (2) Note, under (1), but are nonetheless not bearings as commonly understood and as such are not classified in this class, see search class for placement.

SECTION III - REFERENCES TO OTHER CLASSES

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16Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclasses 18+ for casters, 45+ for wheels and wheel attaching devices, 86.1+ for door, or gate hangers and 128+ for hinges.
29Metal Working,   subclasses 898+ for processes of making bearings.
75Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures,   subclasses 122+ for alloys.
82Turning,   subclass 30 for bearing used in connection with lathe head stocks.
84Music,   subclass 228 for pedal bearings.
104Railways,   subclass 46 for turntable bearings.
105Railway Rolling Stock,   subclass 79 for inside drive boses for locomotives.
114Ships,   subclass 169 for post bearings.
152Resilient Tires and Wheels,   appropriate subclasses for wheels and bearings.
175Boring or Penetrating the Earth,   appropriate subclasses for apparatus which includes bearings, or guides.
184Lubrication,   for lubrication devices separable from, or not a part of, the bearing, or not including any modified structure of the bearing.
267Spring Devices,   subclasses 260+ for an end connection for a vehicle leaf spring in the form of a rotary bearing.
295Railway Wheels and Axle,   appropriate subclasses for wheels and bearings.
301Land Vehicles: Wheels and Axles,   appropriate subclasses for wheels and bearings.
324Electricity: Measuring and Testing,   subclass 155 and electric meter bearings.
368Horology: Time Measuring Systems, or Devices,   subclass 324 for bearings for clocks and watches.
400Typewriting Machines,   subclasses 354+ for guideway, or bearings for carriage and subclasses 441+ for bearings for type bar pivot support.
403Joints and Connections,   subclasses 52+ for articulated joints.
428Stock Material or Miscellaneous Articles,   for a product claimed as a stock material, that is, without sufficient structure in the claims to limit the product to bearing use.
464Rotary Shaft, Gudgeons, Housing, and Flexible Couplings for Rotary Shafts,   appropriate subclasses for shafting, or shaft casings.
508Solid Antifriction Devices, Materials Therefor, Lubricant and Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions,   for subject matter as explained in the class title.

SUBCLASSES

[List of Patents for class 384 subclass 1]    1VIBRATORY, (E.G., PIEZOELECTRIC, OR KINETIC BEARING):
 This subclass is indented under the class definition.  Subject matter wherein vibration e.g., brought about by a piezoelectric effect, results in reduced friction, either through creation of a fluid film or otherwise; or where motion in one direction is used to reduce the friction coefficient in another direction.

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12,for fluid linear bearings.
100+,for fluid rotary bearings.
  
[List of Patents for class 384 subclass 2]    2NONJOINT, NONROTATING FULCRUM BEARING:
 This subclass is indented under the class definition.  Subject matter wherein there is angular movement of the axis of a supported element with respect to a supporting element about a pivot point and where a ball or roller at the pivot point, if present, does not move.
(1) Note. "Flexural pivots" (flexible joints) is specifically excluded both from Class 384, since they are actually a form of flexible joint. Where there is any indication that a device function as a flexible joint, it is classified in Class 403 subclass 291.
(2) Note. This subclass does not include "pivot pin" type bearings, where there is rotation about the axis of a shaft. Such a bearing is considered a rotary bearing, even if it rotates through only a small fraction of a circle.

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154+,for shaft-type pivots for limited rotary movement.
203+,and 206+, for self-aligning ball and socket.

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177Weighing Scales,   subclasses 246+ , 253+ and 264 for a similar bearing in combination with a weigher.
403Joints and Connections,   subclasses 119+ for two members connected together by a joint which includes a pivot.
  
[List of Patents for class 384 subclass 3]    3Knife-edge fulcrum:
 This subclass is indented under subclass 2.  Subject matter wherein the fulcrum is the edge of a wedge-shaped element.
  
[List of Patents for class 384 subclass 4]    4Edges up and down:
 This subclass is indented under subclass 3.  Subject matter wherein there are plural edges, one of which points toward, and another of which points away, from the center of the earth.
  
[List of Patents for class 384 subclass 5]    5Edge up:
 This subclass is indented under subclass 3.  Subject matter wherein an edge points away from the center of the earth.
  
[List of Patents for class 384 subclass 6]    6Edge down:
 This subclass is indented under subclass 3.  Subject matter wherein an edge points toward the center of the earth.
  
[List of Patents for class 384 subclass 7]    7LINEAR BEARING:
 This subclass is indented under the class definition.  Subject matter in which a supported element has sliding or line movement in a straight direction, on a supporting element.
(1) Note. A race is the object upon which the raceway is formed. A raceway is a bearing contact surface, that is, the surface upon which another raceway slides or upon which a rolling element, such as a ball or roller, rolls.

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403Joints and Connections,   subclasses 52+ for two or more members connected together by a joint which includes a guide or slide.
  
[List of Patents for class 384 subclass 8]    8With detection, nonbearing magnetic or hydraulic feature:
 This subclass is indented under subclass 7.  Subject matter including means for inspection or detection of bearing element conditions, or magnetic features not functioning as a magnetic bearing, or means for hydraulic support or damping of a bearing element.

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9,for temperature, electrical or orthogonal feature.
12,for fluid linear bearings.
13+,for lubricating linear bearings.

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310Electrical Generator or Motor Structure,   subclass 90.5 for a magnetic bearing.
  
[List of Patents for class 384 subclass 9]    9With temperature, electrical or orthogonal feature:
 This subclass is indented under subclass 7.  Subject matter including means for temperature control, compensation, or insulation, or means for electrical functions, or means providing for linear movement in at least two directions at right angles to each other.
  
[List of Patents for class 384 subclass 10]    10Tensioned or resilient race or roller member:
 This subclass is indented under subclass 7.  Subject matter wherein means are provided to tension a bearing contact surface element, or wherein a race or rolling element is of a material that bounces or springs back to shape.
  
[List of Patents for class 384 subclass 11]    11For crosshead:
 This subclass is indented under subclass 7.  Subject matter wherein the bearing is for joining a piston rod to a connecting rod.
  
[List of Patents for class 384 subclass 12]    12Fluid bearing:
 This subclass is indented under subclass 7.  Subject matter wherein fluid under pressure is used to support an element in whole or in part during relative rectilinear movement.

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13,for linear bearing lubrication.
100+,for rotary fluid bearings.
  
[List of Patents for class 384 subclass 13]    13Lubricating:
 This subclass is indented under subclass 7.  Subject matter having means in the bearing for allowing lubricant to reach a bearing surface and means for lubricating the bearing.

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184Lubrication,   subclass 5 and 100, for slide bearing lubricators and subclasses 24+ for piston rod lubricators.
  
[List of Patents for class 384 subclass 14]    14Bearing for valve stem:
 This subclass is indented under subclass 13.  Subject matter wherein the bearing supports a valve stem.

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28,for a valve stem bearing.
29,for a cylindrical outer race.
  
[List of Patents for class 384 subclass 15]    15Combined with seal or guard:
 This subclass is indented under subclass 7.  Subject matter including means for shielding the exposed parts of the bearing or for preventing matter form entering into, passing through, or escaping therefrom.

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130+,for seals for plain rotary bearings and especially subclass 137 for scrapers.
477+,for seals for radial antifriction bearings.
607+,for seals for thrust antifriction bearing.

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160Flexible or Portable Closure, Partition, or Panel,   appropriate subclasses for guides or seals, per se, of the flexible partition type.
277Seal for a Joint or Juncture,   for a generic sealing means or process, subclasses 345+ for a seal between relatively movable parts (i.e., a dynamic seal).
  
[List of Patents for class 384 subclass 16]    16Annular:
 This subclass is indented under subclass 15.  Subject matter wherein the seal is ring shaped.
  
[List of Patents for class 384 subclass 17]    17For extension table:
 This subclass is indented under subclass 7.  Subject matter wherein a bearing is part of means to allow the area of a table surface to be increased.

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108Horizontally Supported Planar Surfaces,   subclasses 65+ for guides in a coplanar extension surface extension table.
  
[List of Patents for class 384 subclass 18]    18Ball bearing for drawer:
 This subclass is indented under subclass 7.  Subject matter wherein a ball bearing is designed to support a drawer.

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312Supports: Cabinet Structure,   subclasses 334.1+ for similar antifriction guides in combination with or involving particulars of relation with a cabinet and a horizontally slidable component.
  
[List of Patents for class 384 subclass 19]    19Roller bearing for drawer:
 This subclass is indented under subclass 7.  Subject matter wherein a roller bearing is designed to support a drawer.

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312Supports: Cabinet Structure,   subclasses 334.1+ , 349 and 350 for guides with antifriction bearings in combination with or involving particulars or relation with a cabinet and a horizontally slidable component.
  
[List of Patents for class 384 subclass 20]    20Plain bearing for drawer:
 This subclass is indented under subclass 7.  Subject matter wherein a bearing having sliding friction contact is designed to support drawers for sliding movement.

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312Supports: Cabinet Structure,   subclass 312 , 330.1+, 349, and 350 for guides or slides combined with structure of a cabinet and a rectilinearly movable component thereof, or involving particulars of relationship with a cabinet or its movable components.
  
[List of Patents for class 384 subclass 21]    21Stop, detent, or lock:
 This subclass is indented under subclass 20.  Subject matter wherein means are specified to limit relative movement of bearing races.
  
[List of Patents for class 384 subclass 22]    22Anchoring or aligning means:
 This subclass is indented under subclass 20.  Subject matter wherein means are specified to attach the bearing to a drawer or cabinet structure, or to correctly position the bearing, drawer and cabinet with respect to one another.
(1) Note. The positioning may be done automatically, as for example, by a resilient element.
  
[List of Patents for class 384 subclass 23]    23Specified race structure or material:
 This subclass is indented under subclass 20.  Subject matter having particularly described race shape or material of a race.
  
[List of Patents for class 384 subclass 24]    24Having relatively movable parts for lateral insertion and retention of shaft:
 This subclass is indented under subclass 7.  Subject matter in which the supporting element comprises relatively movable parts, said parts in one relative position permitting the supported element to be moved into supported position in a direction transverse to the direction sliding or line movement, and relatively movable parts movable, to a second relative position to prevent movement of the supported element in a direction transverse to the direction of sliding or line movement, without interfering with said sliding or line movement.
  
[List of Patents for class 384 subclass 25]    25Combined plain and antifriction:
 This subclass is indented under subclass 7.  Subject matter where bearing support is provided partly by a sliding friction bearing and partly by a separate rolling friction bearing.

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49,for combined linear ball and roller antifriction bearings.
  
[List of Patents for class 384 subclass 26]    26Plain bearings:
 This subclass is indented under subclass 7.  Subject matter wherein the sliding or line movement is of friction type.

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187Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle,   subclasses 406+ and 409+ for a guiding device for an elevator car.
  
[List of Patents for class 384 subclass 27]    27For flush tank:
 This subclass is indented under subclass 26.  Subject matter wherein the bearing is for a toilet flush tank valve.

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4Baths, Closets, Sinks, and Spittoons,   subclasses 397+ for a float type flush tank discharge valve having a seating guide.
  
[List of Patents for class 384 subclass 28]    28For valve stem:
 This subclass is indented under subclass 26.  Subject matter wherein the bearing is for a valve stem shaft.

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14,for a valve stem bearing with lubricating means.
  
[List of Patents for class 384 subclass 29]    29Cylindrical outer race:
 This subclass is indented under subclass 26.  Subject matter in which the supported element is guided in its sliding or line movement in a cylindrical bore means which constitutes the outer member.
(1) Note. Where the guiding action is secondary, as in a piston, see the appropriate art class.
(2) Note. Borehole or well casing contacting structure is classified in Class 175 subclass 325 even though specific wear surface structure is claimed.

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14,and 28, for bearings used with valve stems.

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166Wells,   subclasses 241.1+ for centering or friction drag means for well devices, the primary purpose of which is to center the device while stationary or to act as a relatively stationary point of reference to enable manipulation of a well device.
175Boring or Penetrating the Earth,   subclasses 325.1+ for bore wall engaging means.
  
[List of Patents for class 384 subclass 30]    30For die set or stamping mill shaft:
 This subclass is indented under subclass 29.  Subject matter wherein the bearing is for guiding means such as a die set, stamp mill, battery stamp, or vulcanizing press.
  
[List of Patents for class 384 subclass 31]    31For hand-held drill shaft:
 This subclass is indented under subclass 29.  Subject matter wherein the bearing is to support the shaft of a hand-held drill.
(1) Note. See subclass 24 for above ground bearings with laterally moving segments which may guide the shaft of a well drill.
(2) Note. See note to subclass 29 for line between this class and Class 175, "Boring or Penetrating the Earth".
  
[List of Patents for class 384 subclass 32]    32For piston rod:
 This subclass is indented under subclass 29.  Subject matter where the bearing is for a piston rod shaft.
  
[List of Patents for class 384 subclass 34]    34For seat:
 This subclass is indented under subclass 26.  Subject matter wherein the bearing is used for adjusting a seat for linear translation, generally an auto vehicle seat.
  
[List of Patents for class 384 subclass 35]    35More than two telescoping members:
 This subclass is indented under subclass 26.  Subject matter wherein at least a third bearing race moves relative to two other relatively longitudinally translating races.
  
[List of Patents for class 384 subclass 36]    36For structural installation:
 This subclass is indented under subclass 26.  Subject matter wherein the bearing is used for permitting small relative movement for large structures, such as bridge components.
  
[List of Patents for class 384 subclass 37]    37Resilient supporting member:
 This subclass is indented under subclass 26.  Subject matter having a resilient element for supporting the bearing.
(1) Note. The resilient supporting member does not include the bearing contact surface, i.e., the race.

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10,for a linear resilient race.
  
[List of Patents for class 384 subclass 38]    38Self-aligning:
 This subclass is indented under subclass 26.  Subject matter having means for automatically adjusting a bearing surface orientation for optimum efficiency.
(1) Note. Self-aligning linear bearings which empty resilient material for self-alignment feature are found in subclass 37.

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37,for resilient supporting member.
  
[List of Patents for class 384 subclass 39]    39Gib:
 This subclass is indented under subclass 26.  Subject matter comprising an element which is adjustable for keeping a linear bearing race correctly aligned.
(1) Note. The gib may also include adjustment means.
  
[List of Patents for class 384 subclass 40]    40With adjustment means:
 This subclass is indented under subclass 26.  Subject matter including means to move the bearing or structure supporting the bearing.

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39,for adjustment means and a gib.
  
[List of Patents for class 384 subclass 41]    41Assembling means:
 This subclass is indented under subclass 26.  Subject matter wherein a bearing and/or its related support structure comprise structure for allowing assembly.
  
[List of Patents for class 384 subclass 42]    42Specified pad, liner, wear plate or race structure; bearing material:
 This subclass is indented under subclass 26.  Subject matter having a particularly recited race or bearing material of a bearing race.
(1) Note. A pad, liner, wear plate are more specific means for objects functioning as races.
  
[List of Patents for class 384 subclass 43]    43Recirculating:
 This subclass is indented under subclass 7.  Subject matter wherein roller or ball antifriction elements circulate within an endless race track, e.g., raceway, part of the time in a loaded, and part of the time in an unloaded state.
(1) Note. The track usually has one loaded straightway, the one unloaded straightway which are parallel, and circular endways connecting the straightaways.
(2) Note. A race is the object upon which the raceway is formed. A raceway is a bearing contact surface, that is, the surface upon which the other raceway slides or on which a rolling element, such as a ball or roller, rolls.

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415,for recirculating antifriction bearing for a rotary shaft.
  
[List of Patents for class 384 subclass 44]    44Roller:
 This subclass is indented under subclass 432.  Subject matter wherein the antifriction elements are rollers e.g., cylindrical, tapered, barrel-shaped, needle-shaped, etc.

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565,for roller structure.
  
[List of Patents for class 384 subclass 45]    45No cylindrical race:
 This subclass is indented under subclass 43.  Subject matter wherein no race is cylindrical.
(1) Note. A single longitudinal groove in an otherwise cylindrical race shall not be enough to qualify subject matter for this subclass.
(2) Note. The cylindrical member is usually a shaft, and the groove is generally a form of anti-rotation key.
  
[List of Patents for class 384 subclass 46]    46Roller bearing for extension cylinder:
 This subclass is indented under subclass 7.  Subject matter comprising a pulley-type roller bearing for a relatively long shaft such as that employed in railroad switch pull-shafts, or pull-shafts for oil well stripper pumps.
  
[List of Patents for class 384 subclass 47]    47Alternating roller; or antifriction bearing for auto seat:
 This subclass is indented under subclass 7.  Subject matter wherein the bearing comprises (1) rollers which alternate in the orientation of their axis of rotation; or (2) a ball or roller bearing for linear adjustment of a automobile type seat.

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296Land Vehicles: Bodies and Tops subclasses 65.01+ auto seat or other vehicle structure and bearings.
  
[List of Patents for class 384 subclass 48]    48Combined ball and roller bearings:
 This subclass is indented under subclass 7.  Subject matter wherein both ball and roller bearings are used separately but in the same bearing assembly.
(1) Note. This subclass does not include bearings where one type of bearing facilitates movement of another type of bearing of which it is a part, as for example, when a roller bearing is journaled on a shaft via ball bearings. Such bearings would classified as roller bearings.

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50,for a roller bearing journaled on a shaft via ball bearings.
  
[List of Patents for class 384 subclass 49]    49Ball bearing:
 This subclass is indented under subclass 7.  Subject matter wherein the linear antifriction element is a ball.
(1) Note. Roller antifriction elements in a linear antifriction bearing often have their own radial bearing systems, which may include ball bearings, but because the linear antifriction element is a roller, these devices are classified in subclass 50 below, and not in this subclass.
(2) Note. Where different embodiments use balls in one embodiment and rollers in another, they are included here.

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48,for linear ball an roller antifriction bearings.
  
[List of Patents for class 384 subclass 50]    50Roller bearing:
 This subclass is indented under subclass 7.  Subject matter comprising a roller antifriction element which has a particular shape e.g., cylindrical, tapered, barrel, needle, etc.

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548,for roller bearing for a rotary bearing.
  
[List of Patents for class 384 subclass 51]    51Cage configuration:
 This subclass is indented under subclass 50.  Subject matter comprising specified cage structure.
  
[List of Patents for class 384 subclass 52]    52Cylindrical inner or outer track:
 This subclass is indented under subclass 50.  Subject matter wherein an inner race is a shaft or an outer race is a cylindrical bore, or both.
  
[List of Patents for class 384 subclass 53]    53Location or plural roller sets; more than two telescoping members:
 This subclass is indented under subclass 50.  Subject matter wherein: (a) spatial relationship of more than two linear sets of rollers in specified; or (b) three or more sets of races are nested now within the other, each movable relative to the other two.
  
[List of Patents for class 384 subclass 54]    54Resilient member:
 This subclass is indented under subclass 50.  Subject matter wherein a resilient element is used in a bearing or support.
(1) Note. The resilient element need not be a support element it may also be a race, cage, or rolling element.
  
[List of Patents for class 384 subclass 55]    55Raceway configuration:
 This subclass is indented under subclass 50.  Subject matter wherein the shape of the raceway surface is specified and is not a flat surface, unless the precise degree of flatness is indicated.
  
[List of Patents for class 384 subclass 56]    56Nonaxle-supported roller structure:
 This subclass is indented under subclass 50.  Subject matter wherein roller structure is specified, other than cases wherein a roller is journaled on a shaft.

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58,for roller-on-shaft structure.
  
[List of Patents for class 384 subclass 57]    57Adjustment or self-alignment means:
 This subclass is indented under subclass 50.  Subject matter having means to change the position of the bearing.
(1) Note. The change of position may be automatic, e.g., self-aligning.
  
[List of Patents for class 384 subclass 58]    58Roller-on-axle bearing:
 This subclass is indented under subclass 50.  Subject matter wherein structure is specified of a roller that rotates about a shaft.

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56,for freely-rotating roller structure.
  
[List of Patents for class 384 subclass 59]    59Assembling means:
 This subclass is indented under subclass 50.  Subject matter wherein a bearing is designed to facilitate assembly either of the bearing itself or of the bearing on its support.

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191.3,for assembling railway car journals.
244,for means to assemble or disassemble a bearing and its support.
724+,for means to assemble or disassemble a bearing.

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29Metal Working,   subclasses 898+ and particularly subclasses 898.06+, 898.07 and 898.08 for process of manufacturing bearings.
  
[List of Patents for class 384 subclass 91]    91ROTARY BEARING:
 This subclass is indented under the class definition.  Subject matter wherein the relative motion between the two elements includes a rotary component.
(1) Note. This and indented subclasses include subcombination of bearings not otherwise classified.
  
[List of Patents for class 384 subclass 92]    92Roller drill bit type:
 This subclass is indented under subclass 91.  Subject matter for specified bearing structure for a rotary bit in which a cutter element, or carrier for a fixed cutter is rotatably mounted thereon so that the cutter element, or carrier may roll, or tend to roll on a surface of a borehole as the bit is rotated.
(1) Note. Patents have been classified in this and indented subclasses which claim a portion of a bit which supports the specified bearing, or a specified bearing disclosed for a roller drill bit.
(2) Note. A drill bit with details of the bit is in Class 175.

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175Boring or Penetrating the Earth,   subclasses 227+ for storage means for bit lubricant carried by bit, or shaft and subclasses 371+ for a bit earth cutter having details of the bit and see search note for Class line.
  
[List of Patents for class 384 subclass 93]    93Lubricating detail:
 This subclass is indented under subclass 92.  Subject matter having specified structure, or details of a bearing lubrication system.
(1) Note. This subclass is limited to liquid, or grease type lubrication systems.

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95,for a solid lubricant in, or on a bearing surface.
  
[List of Patents for class 384 subclass 94]    94Seal detail:
 This subclass is indented under subclass 92.  Subject matter wherein a bearing seal has specified details such as shape, or material.

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130,for a plain bearing with a specified seal.
  
[List of Patents for class 384 subclass 95]    95Inserts or bearing surface detail:
 This subclass is indented under subclass 92.  Subject matter in which a bearing surface is modified (a) to receive a different material in a portion of the surface, (b) to receive thin strips (c) by special treatment to improve its antifriction, or wear resisting properties, or (d) by specified material therefor.
  
[List of Patents for class 384 subclass 96]    96Roller cone retaining means:
 This subclass is indented under subclass 92.  Subject matter including means to hold a roller cone on its supporting shaft.
  
[List of Patents for class 384 subclass 97]    97Water lubricated propeller shaft or well shaft type:
 This subclass is indented under subclass 91.  Subject matter for supporting either a propellor shaft, or a well pump shaft and is lubricated by water.
(1) Note. Patents have been classified in this and indented subclasses which claim a shaft and specified bearing, or a specified bearing disclosed for shaft lubricated by water.
  
[List of Patents for class 384 subclass 98]    98With elongated strips or staves:
 This subclass is indented under subclass 97.  Subject matter including discreet axially, narrow and long elements placed next to each other to form the bearing surface.
  
[List of Patents for class 384 subclass 99]    99Hydraulic or pneumatic bearing support:
 This subclass is indented under subclass 91.  Subject matter wherein the bearing contact surface, or a portion thereof is movable mounted and is acted upon and supported by a hydraulic, or pneumatic system.

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100+,for a fluid bearing.
  
[List of Patents for class 384 subclass 100]    100Fluid bearing:
 This subclass is indented under subclass 91.  Subject matter wherein fluid pressure is used to support an element wholly, or partially, balance the bearing, or resist the vertical, or horizontal thrust of a rotary element by interposing a layer that in operation eliminates contact between relatively rotating elements.
(1) Note. Fluid (i.e., liquid, or gas) support and lubrication both involve interposing a fluid between relatively moving members. In general, the difference between them is that lubrication merely minimizes contact between the members, whereas fluid support eliminates it altogether via a thicker layer of fluid. Almost all gas bearings, or hydrodynamic, or hydrostatic bearings, involve fluid support
(2) Note. If relatively moving elements can either rotate, or slide they are in these subclasses.

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322,for lubricating a bearing.

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100Presses,   subclass 170 for roll type presses having a yieldable mounted roll and in which the yield force is transmitted by fluid pressure.
384Bearings,   subclass 12 for a linear fluid bearing.
  
[List of Patents for class 384 subclass 101]    101With antifriction bearing:
 This subclass is indented under subclass 100.  Subject matter including an antifriction bearing.
(1) Note. The plain and the antifriction bearings are used either simultaneously. or alternatively.
  
[List of Patents for class 384 subclass 102]    102Backup:
 This subclass is indented under subclass 101.  Subject matter wherein the antifriction bearing functions as a backup bearing during fluid bearing breakdown, during start-up, or low, or reversed speeds.
  
[List of Patents for class 384 subclass 103]    103Flexible member:
 This subclass is indented under subclass 100.  Subject matter having a pliant element which is between relatively moveable bearing parts to form areas for the fluid.
(1) Note. There are usually plural flexible members to form pad like areas.

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180Motor Vehicles,   subclass 124 and 125, for ground effect vehicle support platforms.
  
[List of Patents for class 384 subclass 104]    104Plural ends fixed:
 This subclass is indented under subclass 103.  Subject matter wherein the flexible element is connected to a relatively rotating bearing part at more than one end of the flexible element.
  
[List of Patents for class 384 subclass 105]    105Thrust bearing:
 This subclass is indented under subclass 103.  Subject matter designed for loads imposed in the direction of the axis rotation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

420,for thrust bearings, and see search note.
  
[List of Patents for class 384 subclass 106]    106Auxiliary resilient support:
 This subclass is indented under subclass 103.  Subject matter wherein the flexible element is supported by separate resilient elements.
  
[List of Patents for class 384 subclass 107]    107Radial and thrust:
 This subclass is indented under subclass 100.  Subject matter designed for loads imposed both in the direction of the axis of rotation and normal to the axis of rotation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

101,for a fluid bearing and an antifriction bearing.
228,for plain thrust and radial bearing.
  
[List of Patents for class 384 subclass 108]    108Spherical:
 This subclass is indented under subclass 107.  Subject matter wherein a relatively rotating element has at least a portion of the bearing surface concaved, or ball shaped.

SEE OR SEARCH THIS CLASS, SUBCLASS:

206+,for ball and socket plain bearing.
  
[List of Patents for class 384 subclass 109]    109Gas bearing:
 This subclass is indented under subclass 108.  Subject matter wherein the fluid is a gas.
  
[List of Patents for class 384 subclass 110]    110Conical:
 This subclass is indented under subclass 107.  Subject matter wherein a relatively rotating element has a cone shaped bearing surface.
  
[List of Patents for class 384 subclass 111]    111Outer recess forming fluid pad:
 This subclass is indented under subclass 107.  Subject matter wherein the outer bearing has a nonannular cavity of significant axial and circumferential extent for receiving fluid.
(1) Note. There can be plural pads in a bearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

118,for radial outer recess forming fluid pad.
  
[List of Patents for class 384 subclass 112]    112Grooved thrust bearing surface:
 This subclass is indented under subclass 107.  Subject matter wherein the thrust bearing surface has a narrow furrow, or hollow cut for receiving the fluid.
  
[List of Patents for class 384 subclass 113]    113Central member recess:
 This subclass is indented under subclass 107.  Subject matter wherein an inner relatively rotating element has a groove, or passage for receiving the fluid.
(1) Note. The groove, or passage may be located in the thrust bearing portion, in the radial bearing portion, or in both.
(2) Note. There may be plural grooves, or passages in the bearing.
  
[List of Patents for class 384 subclass 114]    114Radial:
 This subclass is indented under subclass 100.  Subject matter designed for loads imposed only normal to the axis of rotation.
  
[List of Patents for class 384 subclass 115]    115Shaft recess:
 This subclass is indented under subclass 114.  Subject matter wherein an inner relatively rotating element has a groove, or passage for receiving the fluid.
(1) Note. There may be plural grooves, or passages in the shaft.
  
[List of Patents for class 384 subclass 116]    116Half-circular or less outer member:
 This subclass is indented under subclass 114.  Subject matter wherein the outer bearing structure is semicircular, or less than 180 in extent.
  
[List of Patents for class 384 subclass 117]    117Pivoted fluid pad:
 This subclass is indented under subclass 114.  Subject matter wherein the bearing has a cavity in its surface for receiving the fluid and also has a rocking, or tilting movement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

122,for a thrust bearing having a pivoted fluid pad.
309,for a load distributing pivoted pad and see search notes.
  
[List of Patents for class 384 subclass 118]    118Outer recess forming fluid pad:
 This subclass is indented under subclass 114.  Subject matter wherein the outer bearing has a nonannular cavity of significant axial and circumferential extent for receiving the fluid.
(1) Note. There can be plural pads in a bearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

111,for an outer recess forming fluid pad for a radial and thrust bearing.
  
[List of Patents for class 384 subclass 119]    119Resilient mounting member or seal:
 This subclass is indented under subclass 114.  Subject matter having a material that bounces, or springs back to shape and takes at least part of the weight of supporting the bearing surface and permits relative movement, or vibration thereof with respect to a support and/or means for preventing matter from entering into, passing through, or escaping from the bearing.

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124,for a thrust fluid bearing resilient mounting member, or seal.
130+,for a bearing with a seal.
215+,for a resilient mounting member for a plain bearing.
  
[List of Patents for class 384 subclass 120]    120Circumferentici groove in outer member:
 This subclass is indented under subclass 114.  Subject matter wherein the bearing surface of an outer relatively rotating element has a narrow furrow, or hollow cut that is around its periphery for receiving the fluid.
  
[List of Patents for class 384 subclass 121]    121Thrust:
 This subclass is indented under subclass 100.  Subject matter designed for loads imposed in the direction of the axis of rotation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

420+,for thrust bearing and see search notes.
  
[List of Patents for class 384 subclass 122]    122Pivoted fluid pad:
 This subclass is indented under subclass 121.  Subject matter wherein the bearing has a cavity in its surface for receiving the fluid and also has a rocking, or tilting movement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

117,for a radial bearing having a pivoted fluid pad.
309+,for a load distributing pivoted pad and see search notes.
  
[List of Patents for class 384 subclass 123]    123Grooved bearing surface:
 This subclass is indented under subclass 121.  Subject matter wherein the bearing surface has a narrow furrow, or hollow cut for passage of the fluid.

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112,for a fluid radial and thrust bearing wherein the thrust bearing is grooved.
  
[List of Patents for class 384 subclass 124]    124Resilient mounting member or seal:
 This subclass is indented under subclass 121.  Subject matter having a material that bounces, or springs back into shape and takes at least part of the weight of supporting the bearing surface and permits relative movement, or vibration thereof with respect to a support and/or means for preventing matter from entering into, passing through, or escaping from the bearing.

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119,for a radial fluid bearing resilient mounting member, or seal.
130+,for a bearing with a seal.
215+,for a resilient mounting member for a plain bearing.
  
[List of Patents for class 384 subclass 125]    125Resilient bearing surfaces:
 This subclass is indented under subclass 91.  Subject matter wherein the bearing contact surface is a material that bounces, or springs back to shape.
  
[List of Patents for class 384 subclass 126]    126Plural bearing, one plain and one antifriction:
 This subclass is indented under subclass 91.  Subject matter including antifriction bearing.

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101+,for a fluid bearing and an antifriction bearing.
194,for a self-adjusting thrust and radial plain bearing.
228,for a thrust and radial plain bearing.
  
[List of Patents for class 384 subclass 127]    127Roller:
 This subclass is indented under subclass 126.  Subject matter wherein the antifriction bearing includes an element that rolls during use.
  
[List of Patents for class 384 subclass 128]    128Tapered roller:
 This subclass is indented under subclass 127.  Subject matter wherein the element has a gradual decrease in width.
  
[List of Patents for class 384 subclass 129]    129Plain bearing:
 This subclass is indented under subclass 91.  Subject matter having sliding, or line contact with the support element, or with the rotary, or oscillating shaft.

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74Machine Element or Mechanism,   subclasses 111+ for a pivotal, or oscillating movement of a lever.
  
[List of Patents for class 384 subclass 130]    130With specified seal:
 This subclass is indented under subclass 129.  Subject matter including means for preventing matter from entering into, passing through, or escaping from the bearing.
(1) Note. The bearing and seal can be integral e.g., bearing constructed to act as a seal or vice versa or the bearing modified to receive, or otherwise cooperate with a seal.
(2) Note. A broadly recited seal, e.g., seal, bearing seal, etc., which recites no structure is placed below in the schedule.

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100+,for a fluid bearing which includes seals.
322+,for lubricating which include a broadly recited seal.

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277Seal for a Joint or Juncture,   for a generic sealing means or process, subclasses 345+ for a seal between relatively movable parts (i.e., a dynamic seal).
  
[List of Patents for class 384 subclass 131]    131Fluid actuated:
 This subclass is indented under subclass 130.  Subject matter wherein the seal is moved by a fluid.
  
[List of Patents for class 384 subclass 132]    132Fluid barrier:
 This subclass is indented under subclass 130.  Subject matter wherein the seal comprises a sealing barrier of liquid, of gas, or of a mixture of both.
(1) Note. These subclasses includes centrifugal means to pump a sealing fluid.
  
[List of Patents for class 384 subclass 133]    133Magnetic fluid:
 This subclass is indented under subclass 132.  Subject matter wherein the sealing barrier is a liquid which contains magnetic properties.
  
[List of Patents for class 384 subclass 134]    134Gas:
 This subclass is indented under subclass 132.  Subject matter wherein the barrier fluid is a gas.
  
[List of Patents for class 384 subclass 135]    135Centrifugal:
 This subclass is indented under subclass 130.  Subject matter wherein the seal is moved, or held in place by centrifugal force.

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132+,for centrifugal means to pump a sealing fluid.
  
[List of Patents for class 384 subclass 136]    136With wick:
 This subclass is indented under subclass 135.  Subject matter including a fibrous element which acts as a reservoir and/or a distributing means.
  
[List of Patents for class 384 subclass 137]    137And scraper:
 This subclass is indented under subclass 130.  Subject matter having means to remove excess lubricant from the shaft and return it to the lubricant reservoir, or for removing material from the shaft about to enter the bearing from its outside.
  
[List of Patents for class 384 subclass 138]    138Unitary bearing and seal:
 This subclass is indented under subclass 130.  Subject matter wherein the bearing and seal is one element.
  
[List of Patents for class 384 subclass 139]    139Relatively rotatable radially contacting:
 This subclass is indented under subclass 130.  Subject matter wherein the seal comprises relatively rotatable elements presenting complementary sealing surfaces normal to, or at an oblique angle to the axis of rotation.
  
[List of Patents for class 384 subclass 140]    140Flexible sealing member:
 This subclass is indented under subclass 139.  Subject matter where the relatively rotating radially contacting sealing element is made of flexible material.
  
[List of Patents for class 384 subclass 141]    141Diaphragm:
 This subclass is indented under subclass 140.  Subject matter wherein the flexible seal is attached to one of the rotatable elements and to a part which is axially movable therewith.
  
[List of Patents for class 384 subclass 142]    142Axially translatable member rotatable with shaft:
 This subclass is indented under subclass 139.  Subject matter wherein one of the relatively rotatable elements is axially movable and is mounted on a shaft for rotation therewith.

SEE OR SEARCH THIS CLASS, SUBCLASS:

149,for a radially contained seal with axially acting follower.
  
[List of Patents for class 384 subclass 143]    143Plural seals:
 This subclass is indented under subclass 139.  Subject matter where there is more than one seal.
  
[List of Patents for class 384 subclass 144]    144Labyrinth:
 This subclass is indented under subclass 130.  Subject matter wherein the seal has a succession of baffles which define a slight clearance to create a series of throttling zones to impede the passage of fluid.

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132+,for a fluid barrier seal.
  
[List of Patents for class 384 subclass 145]    145Arcuate bearing surface:
 This subclass is indented under subclass 130.  Subject matter wherein the seal conforms to a bearing surface which has a shape of a sphere to permit angular, or lateral movement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

206+,for a ball and socket which is self-adjusting.
  
[List of Patents for class 384 subclass 146]    146Axially spaced lip:
 This subclass is indented under subclass 145.  Subject matter wherein the seal includes a projecting rim extending axially of the major seat engaging part of the seal.
  
[List of Patents for class 384 subclass 147]    147Lip seal:
 This subclass is indented under subclass 130.  Subject matter wherein the seal includes a projecting rim for contacting a relatively moving element to be sealed, the rim extends axially of the center of the seal seat.
  
[List of Patents for class 384 subclass 148]    148With radially acting bias means:
 This subclass is indented under subclass 147.  Subject matter including means tending to urge the seal in a radial direction.
  
[List of Patents for class 384 subclass 149]    149Radially contained seal with axially acting follower:
 This subclass is indented under subclass 130.  Subject matter wherein the seal is in an assembly comprising a chamber and an element coaxial therewith, wherein the seal is within the chamber and an element exerts an axial thrust on the sealing causing it to be moved radially into a sealing engagement with the chamber and a shaft.

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142,for an axially translatable member rotatable with shaft.
  
[List of Patents for class 384 subclass 150]    150Mechanically actuated:
 This subclass is indented under subclass 130.  Subject matter wherein the seal is moved by mechanical means e.g., a nut, or separate resilient elements etc.
  
[List of Patents for class 384 subclass 151]    151Resilient sealing surface:
 This subclass is indented under subclass 130.  Subject matter wherein the seal is on the outer area of the bearing, or shaft and is made of a resilient material.
  
[List of Patents for class 384 subclass 152]    152O-rings:
 This subclass is indented under subclass 151.  Subject matter wherein the seal is in the shape of a round, or oval ring.
  
[List of Patents for class 384 subclass 153]    153Elastomeric:
 This subclass is indented under subclass 151.  Subject matter wherein the resilient material is an elastomer.
  
[List of Patents for class 384 subclass 154]    154Rocking type bearing:
 This subclass is indented under subclass 129.  Subject matter wherein the relatively rotating element has a limited and reciprocating rotary motion.

SEE OR SEARCH CLASS:

384Bearings,   subclass 2 for a bearing of the pivot type.
  
[List of Patents for class 384 subclass 155]    155Lubricated:
 This subclass is indented under subclass 154.  Subject matter wherein the bearing includes lubricating material, or means for lubricating the bearing surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

322+,for lubricating of bearings.
  
[List of Patents for class 384 subclass 156]    156Movable pivot axis:
 This subclass is indented under subclass 154.  Subject matter wherein the axis of the bearing shifts its position in a cyclical manner during the reciprocating rotary motion.
  
[List of Patents for class 384 subclass 157]    157For plow or colter disk:
 This subclass is indented under subclass 129.  Subject matter having means for supporting the bearing which receives a hub, or rotary shaft of a plow, or colter disk.

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172Earth Working,   subclasses 518+ , for rolling, or rotating earth working tools including bearings for disks, or colters and see search notes.
384Bearings,   subclass 460 , for an antifriction bearing mounting, for a disk plow.
  
[List of Patents for class 384 subclass 158]    158Railway car journal:
 This subclass is indented under subclass 129.  Subject matter wherein a radial bearing and or a housing, e.g., box, is designed specifically for railway car journal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

459,for railway antifriction bearing.

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295Railway Wheels and Axles,   appropriate subclasses for car wheel and axle construction and wheel attaching devices.
  
[List of Patents for class 384 subclass 158.1]    158.1With resilient mounting member:
 This subclass is indented under subclass 158.  Subject matter having a material that bounces or springs back into shape and takes at least part of the weight of supporting the bearing and permits relative movement or vibration thereof with respect to a support.

SEE OR SEARCH THIS CLASS, SUBCLASS:

215+,for a resilient mounting member for a plain bearing and see search notes.
  
[List of Patents for class 384 subclass 159]    159With guard or seal:
 This subclass is indented under subclass 158.  Subject matter including means for preventing the escape of lubricant, preventing dust or other matter from entering the bearing or journal box.

SEE OR SEARCH CLASS:

277Seal for a Joint or Juncture,   for a generic sealing means or process, subclass 356 for a dynamic seal for use in a journal box.
  
[List of Patents for class 384 subclass 160]    160Lubricating:
 This subclass is indented under subclass 158.  Subject matter having means in the bearing for allowing a lubricant to reach a journal bearing surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

322,for lubricating of plain bearings an see search notes.
  
[List of Patents for class 384 subclass 161]    161For thrust bearing:
 This subclass is indented under subclass 160.  Subject matter wherein the lubricating is for a bearing designed for loads imposed in the direction of the axis of rotation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

368+,for a rotary plain thrust bearing with lubricating means.
  
[List of Patents for class 384 subclass 162]    162For brass bearings:
 This subclass is indented under subclass 160.  Subject matter wherein the journal bearing is made of brass which is modified by grooves, cresses, apertures or the like for conveying or distributing lubricating to the bearing surface.
(1) Note. See subclass 191 for definition of "brass".

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191+,for brasses bearings.
  
[List of Patents for class 384 subclass 163]    163Reservoir fed:
 This subclass is indented under subclass 162.  Subject matter having means to hold the lubricant which is fed to the bearing surface.
  
[List of Patents for class 384 subclass 164]    164Capillary:
 This subclass is indented under subclass 163.  Subject matter wherein a capillary means is used to convey the lubricant to the bearing..

SEE OR SEARCH THIS CLASS, SUBCLASS:

379,for lubricant fed by capillary means to plain bearings.
  
[List of Patents for class 384 subclass 165]    165With lower reservoir:
 This subclass is indented under subclass 160.  Subject matter having means to hold the lubricant wherein the holding means is below a journal axle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

403,for a plane bearing with a lower reservoir for a horizontal shaft.
  
[List of Patents for class 384 subclass 166]    166Journal operated feed:
 This subclass is indented under subclass 165.  Subject matter having means operated by movement of an element of the car journal for feeding lubricant to the journal bearing.
  
[List of Patents for class 384 subclass 167]    167Band:
 This subclass is indented under subclass 166.  Subject matter wherein a belt shaped element rotated by a journal axle dips into the lubricant to feed the bearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

405+,for rotary shaft moving a band to lubricate a plain bearing.
  
[List of Patents for class 384 subclass 168]    168Centrifugal:
 This subclass is indented under subclass 166.  Subject matter wherein lubricant is impelled by centrifugal force.

SEE OR SEARCH THIS CLASS, SUBCLASS:

465,for centrifugal feed of a lubricant to an antifriction bearing.
  
[List of Patents for class 384 subclass 169]    169Pump:
 This subclass is indented under subclass 166.  Subject matter wherein the lubricant is fed by a pump.
  
[List of Patents for class 384 subclass 170]    170Capillary:
 This subclass is indented under subclass 165.  Subject matter wherein a capillary means is used to convey lubricant to the bearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

379,for capillary feed of a lubricant to a plain bearing and see search notes.
  
[List of Patents for class 384 subclass 171]    171With wick biasing means:
 This subclass is indented under subclass 170.  Subject matter having mans to urge a capillary material against a journal axle.
  
[List of Patents for class 384 subclass 172]    172Metal spring:
 This subclass is indented under subclass 171.  Subject matter wherein the urging means is made of metal.

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184Lubrication,   subclass 45 for spring operated followers for force feed of a lubricator.
  
[List of Patents for class 384 subclass 173]    173Coil spring:
 This subclass is indented under subclass 172.  Subject matter wherein the metal spring is in the form of a coil.
  
[List of Patents for class 384 subclass 174]    174Rubber:
 This subclass is indented under subclass 171.  Subject matter wherein the urging means is made of rubber or similar composition.
  
[List of Patents for class 384 subclass 175]    175With capillary material retainer:
 This subclass is indented under subclass 170.  Subject matter including means to hold or support capillary material.
  
[List of Patents for class 384 subclass 176]    176Integral with box:
 Subject matter under 175 wherein the retainer is integral with a journal box.
  
[List of Patents for class 384 subclass 177]    177Including roller applicator:
 This subclass is indented under subclass 165.  Subject matter having means for applying the lubricant which turns about an axis of rotation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

407+,for roller or ball for applying a lubricant to a shaft and a plain bearing.
  
[List of Patents for class 384 subclass 178]    178Yieldably supported:
 This subclass is indented under subclass 177.  Subject matter wherein the roller is yieldably held by means of a spring, weight, fluid pressure, etc.
  
[List of Patents for class 384 subclass 179]    179Coil spring:
 This subclass is indented under subclass 178.  Subject matter wherein the yieldable means is in the form of a coil spring.
  
[List of Patents for class 384 subclass 180]    180Spring under compression:
 This subclass is indented under subclass 179.  Subject matter wherein the coil spring operates under pressure.
  
[List of Patents for class 384 subclass 181]    181Wick structure:
 This subclass is indented under subclass 160.  Subject matter wherein the means to feed lubricant is a fibrous element having a specified configuration.

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413,for wick structure to feed lubricant to a rotary shaft.

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502Catalyst, Solid Sorbent, or Support Thereof: Product or Process of Making,   subclass 400 for which composition.
  
[List of Patents for class 384 subclass 182]    182Sheet metal journal box:
 This subclass is indented under subclass 158.  Subject matter wherein the car journal box is formed of sheet metal in a particular configuration.
  
[List of Patents for class 384 subclass 183]    183With journal retainer and guide:
 This subclass is indented under subclass 158.  Subject matter including a retainer or guide element.
(1) Note. The retainer or guide element are normally not in contact with the rotating axle.
  
[List of Patents for class 384 subclass 184]    184Lateral guide:
 This subclass is indented under subclass 183.  Subject matter wherein the guide element is mounted laterally in a horizontal sense to the side of the rotating journal axle.
  
[List of Patents for class 384 subclass 185]    185Mounting feature:
 This subclass is indented under subclass 184.  Subject matter wherein there is specified means for supporting the guide element.
  
[List of Patents for class 384 subclass 186]    186Resilient:
 This subclass is indented under subclass 185.  Subject matter wherein the support means is made of a resilient material.
  
[List of Patents for class 384 subclass 187]    187Interior:
 This subclass is indented under subclass 158.  Subject matter wherein a journal box is located on the inside of the wheel on the journal axle.
  
[List of Patents for class 384 subclass 188]    188Includes thrust bearing:
 This subclass is indented under subclass 158.  Subject matter having means to close and opening in a journal box.
  
[List of Patents for class 384 subclass 189]    189Lid:
 This subclass is indented under subclass 158.  Subject matter having means to close and opening in a journal box.

SEE OR SEARCH CLASS:

49Movable or Removable Closures,   appropriate subclasses, for closures of the type provide for an see the search notes thereto in section IV for the loci of closures in other classes.
  
[List of Patents for class 384 subclass 190]    190Mounted for swinging:
 This subclass is indented under subclass 189.  Subject matter wherein the lid is mounted on the journal box by means of a hinge or other pivotal connection.
  
[List of Patents for class 384 subclass 190.1]    190.1About pivot at right angle to plane of lid:
 This subclass is indented under subclass 190.  Subject matter wherein the lid swings in a single plane on a pivot which is perpendicular to the place of the lid.
  
[List of Patents for class 384 subclass 190.2]    190.2Spring and cam biased open:
 This subclass is indented under subclass 190.  Subject matter including a cam cooperating with an end of a spring mounted on the lid to hold the lid open.
(1) Note. Frequently, the same mechanism also acts to hold the lid closed.
  
[List of Patents for class 384 subclass 190.3]    190.3With roller:
 This subclass is indented under subclass 190.2.  Subject matter including a roller cooperating with the cam.
  
[List of Patents for class 384 subclass 190.4]    190.4Spring biased closed:
 This subclass is indented under subclass 190.  Subject matter including a spring to close the lid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

190.2+,for spring which can bias a lid open and/or closed.
  
[List of Patents for class 384 subclass 190.5]    190.5Sliding:
 This subclass is indented under subclass 189.  Subject matter wherein the lid is mounted for rectilinear movement in the plane of the lid.
  
[List of Patents for class 384 subclass 190.6]    190.6Lid structure:
 This subclass is indented under subclass 189.  Subject matter having specified structure or form of the lid.
  
[List of Patents for class 384 subclass 190.7]    190.7With latch:
 This subclass is indented under subclass 190.6.  Subject matter including means to fasten or latches the lid.
  
[List of Patents for class 384 subclass 191]    191Brasses:
 This subclass is indented under subclass 158.  Subject matter wherein a journal bearing is located in the top of the journal box and bears against the upper surface of the rotating journal axle.
(1) Note. The brasses is usually a half bearing.
  
[List of Patents for class 384 subclass 191.1]    191.1Self aligning:
 This subclass is indented under subclass 191.  Subject matter wherein the bearing is formed with a curved surface which permits self alignment of the bearing
  
[List of Patents for class 384 subclass 191.2]    191.2Bearing surface liner or insert:
 This subclass is indented under subclass 191.  Subject matter wherein the bearing is shaped to receive a surface liner to reduce friction or an insert for strengthening the bearing.
  
[List of Patents for class 384 subclass 191.3]    191.3Assembling means:
 This subclass is indented under subclass 191.  Subject matter wherein a bearing is designed to facilitate assembly either of the bearing itself or of the bearing on its support.

SEE OR SEARCH THIS CLASS, SUBCLASS:

59,for assembling a roller bearing and see search notes.
  
[List of Patents for class 384 subclass 191.4]    191.4Mounting structure:
 This subclass is indented under subclass 191.  Subject matter having means to hold the bearing to a journal box.
  
[List of Patents for class 384 subclass 192]    192Self-adjusting or self-aligning:
 This subclass is indented under subclass 129.  Subject matter wherein relatively sliding surface in a bearing support structure permit continuous self movement of the bearing position to compensate for shaft misalignment, or the bearing and shaft have limited motion, allowing for oscillation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

247,for adjustment means for a bearing.
495+,for self-aligning means for an antifriction bearing.

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210Liquid Purification or Separation,   subclass 64 , 365+ and 367 for a centrifugal extractor gyratorially mounted on a shaft.
430Joints and Connections,   subclasses 53+ for plural members interconnected by plural articulation axes.
494Imperforate Bowl: Centrifugal Separators,   subclass 46 for a rotatable bowl having a bearing means adapted to enable the bowl to establish dynamic axis of rotation.
  
[List of Patents for class 384 subclass 193]    193For vertical shaft:
 This subclass is indented under subclass 192.  Subject matter where the bearing receives force from a shaft whose axis is perpendicular to a horizontal plane.

SEE OR SEARCH THIS CLASS, SUBCLASS:

226+,for a bearing and a vertical shaft.
420+,for thrust bearings and see search notes.
  
[List of Patents for class 384 subclass 194]    194With lower thrust and upper radial bearing:
 This subclass is indented under subclass 193.  Subject matter wherein the shaft carrying an element to be rotated is supported at its base by a thrust bearing and near the point of attachment of the element by a radial bearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

107+,for a fluid radial and thrust bearing.
126,for a plain bearing and an antifriction bearing.
228,for vertical shaft with a thrust and radial bearing.
  
[List of Patents for class 384 subclass 195]    195Oscillatory suspension:
 This subclass is indented under subclass 193.  Subject matter in which the shaft carrying an element to be rotated is pivotally supported above the body.
  
[List of Patents for class 384 subclass 196]    196Resiliently centered:
 This subclass is indented under subclass 195.  Subject matter having yielding means to assist in maintaining the shaft vertically centered.

SEE OR SEARCH THIS CLASS, SUBCLASS:

198,for an oscillating thrust bearing with resilient centering means for a shaft.
200,for a shaft balancing means with resilient centering means for the shaft.
215,for a resilient mounting member.
  
[List of Patents for class 384 subclass 197]    197Oscillating thrust bearing:
 This subclass is indented under subclass 193.  Subject matter wherein a thrust bearing is pivoted to permit the shaft to move from the vertical.

SEE OR SEARCH THIS CLASS, SUBCLASS:

420+,for thrust bearings and see search notes.
  
[List of Patents for class 384 subclass 198]    198Resiliently centered:
 This subclass is indented under subclass 197.  Subject matter having yielding means to assist in maintaining the shaft vertically centered.

SEE OR SEARCH THIS CLASS, SUBCLASS:

196,for an oscillating suspension means with resilient centering means for a shaft.
200,for a shaft balancing means with resilient centering means for the shaft.
215,for a resilient mounting member.
  
[List of Patents for class 384 subclass 199]    199Shaft balancing means:
 This subclass is indented under subclass 193.  Subject matter wherein the adjusting means is mounted on the shaft for the purpose of maintaining it vertically centered.
  
[List of Patents for class 384 subclass 200]    200Resiliency on radial bearing:
 This subclass is indented under subclass 199.  Subject matter wherein yielding means act on a bearing which receive radial force to assist in maintaining the shaft vertically centered.

SEE OR SEARCH THIS CLASS, SUBCLASS:

196,for an oscillating suspension means with resilient centering means for a shaft.
198,for an oscillating thrust bearing with resilient centering means for a shaft.
215,for a resilient mounting member.
  
[List of Patents for class 384 subclass 201]    201Having body and spindle connector:
 This subclass is indented under subclass 193.  Subject matter including a coupling means holding an element, e.g., bowl, to the shaft wherein the element is carried by the shaft.
  
[List of Patents for class 384 subclass 202]    202Resilient:
 This subclass is indented under subclass 192.  Subject matter wherein the bearing support includes a material that bounces, or springs back into shape.
  
[List of Patents for class 384 subclass 203]    203Ball and socket:
 This subclass is indented under subclass 202.  Subject matter wherein one element has portion in the shape of a sphere which is received in a recess of another element and there is a relatively sliding movement between them.

SEE OR SEARCH THIS CLASS, SUBCLASS:

206,for a ball and socket not resiliently mounted.
  
[List of Patents for class 384 subclass 204]    204For electric motor:
 This subclass is indented under subclass 203.  Subject matter wherein the self adjusting bearing is mounted in an electric motor housing.
  
[List of Patents for class 384 subclass 205]    205Fixed pivot axis:
 This subclass is indented under subclass 192.  Subject matter wherein the relatively sliding surfaces are part of support means for holding the bearing which turns about an axis that does not move.
(1) Note. Shaft hangers having plain bearings mounted to pivot about a fixed axis are included in this subclass.
  
[List of Patents for class 384 subclass 206]    206Ball and socket:
 This subclass is indented under subclass 192.  Subject matter wherein one element has a portion in the shape of a sphere which is received in a recess of another element and there is a relatively sliding movement between them.
(1) Note. The ball element has a bearing surface through its center.

SEE OR SEARCH THIS CLASS, SUBCLASS:

108,for a spherical fluid bearing.
145,for an arcuate bearing surface.
203,for a ball and socket resiliently supported.
  
[List of Patents for class 384 subclass 207]    207Sheet metal socket:
 This subclass is indented under subclass 206.  Subject matter in which at least a portion of the socket is formed from a metal whose thickness is thin.
  
[List of Patents for class 384 subclass 208]    208Assembly:
 This subclass is indented under subclass 206.  Subject matter in which the ball and/or socket are shaped so that they can be put together, or taken apart for repair, or use.
  
[List of Patents for class 384 subclass 209]    209Separable ball retaining member:
 This subclass is indented under subclass 208.  Subject matter wherein the socket includes a detachable element which serves to retain the ball in the socket after the bearing structure has been assembled.
  
[List of Patents for class 384 subclass 210]    210Lock ring:
 This subclass is indented under subclass 209.  Subject matter wherein the detachable element has a circular band shape for holding the assembly together.
  
[List of Patents for class 384 subclass 211]    211Of ball:
 This subclass is indented under subclass 208.  Subject matter wherein the ball is shaped, or designed to enable, or facilitate its assembly within the socket member.
  
[List of Patents for class 384 subclass 212]    212Sectional:
 This subclass is indented under subclass 211.  Subject matter in which the ball is assembled from discrete ball elements within the socket.
  
[List of Patents for class 384 subclass 213]    213With lubricating means:
 This subclass is indented under subclass 206.  Subject matter including means for allowing a lubricant to flow to a bearing surface, or means for applying a lubricant to a bearing surface.
(1) Note. The bearing surface is that of a plain bearing and/or the sliding surface between a ball and a socket.

SEE OR SEARCH THIS CLASS, SUBCLASS:

322,for lubricating means for a radial bearing and see search notes for other search.
  
[List of Patents for class 384 subclass 214]    214Having felt or wick:
 This subclass is indented under subclass 213.  Subject matter including a fibrous element e.g., cord, shet, etc., which acts as a reservoir and/or a distributing means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

413,for a wick and reservoir.

SEE OR SEARCH CLASS:

252Composition,   subclass 425.5 , for wick composition.
  
[List of Patents for class 384 subclass 215]    215With resilient mounting member:
 This subclass is indented under subclass 129.  Subject matter having a material that bounces, or springs back into shape and takes at least part of the weight of supporting the bearing and permits relative movement, or vibration thereof with respect to a support.

SEE OR SEARCH THIS CLASS, SUBCLASS:

124,for a resilient mounting member for a fluid thrust bearing.

SEE OR SEARCH CLASS:

248Supports,   subclasses 560+ for a resilient support for an article of general use.
  
[List of Patents for class 384 subclass 216]    216For connecting rod:
 This subclass is indented under subclass 215.  Subject matter designed to be used on a connecting rod.
  
[List of Patents for class 384 subclass 217]    217Lock type:
 This subclass is indented under subclass 215.  Subject matter wherein part of the bearing contact surface is resiliently biased for securing a rotating shaft in its operating position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

219,for a biased bearing surface segment.
  
[List of Patents for class 384 subclass 218]    218Coil spring:
 This subclass is indented under subclass 215.  Subject matter wherein the resilient element is in the form of a helix.
(1) Note. See subclass 216 for connecting rod bearing assemblies having resilient supporting elements, most of which are coil springs.

SEE OR SEARCH THIS CLASS, SUBCLASS:

216,for a connecting rod bearing assembly with coil springs.
  
[List of Patents for class 384 subclass 219]    219Biased bearing surface segment:
 This subclass is indented under subclass 218.  Subject matter wherein the coil spring acts to move a portion of the bearing contact surface with respect to the remainder of the bearing contact surface.
  
[List of Patents for class 384 subclass 220]    220Nonmetallic:
 This subclass is indented under subclass 215.  Subject matter wherein the resilient element is made of a material that lacks the characteristics of a metal.
  
[List of Patents for class 384 subclass 221]    221Laminated:
 This subclass is indented under subclass 220.  Subject matter wherein the resilient nonmetallic member is composed of a series of layers.
  
[List of Patents for class 384 subclass 222]    222Cylindrical:
 This subclass is indented under subclass 220.  Subject matter wherein the nonmetallic resilient element is in the shape of a circular body of uniform diameter, the extremities of which are equal parallel circles.
  
[List of Patents for class 384 subclass 223]    223For thrust bearing:
 This subclass is indented under subclass 215.  Subject matter wherein the resilient member is for supporting loads imposed in the direction of the axis of rotation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

420+,for thrust bearings, and see search notes.
  
[List of Patents for class 384 subclass 224]    224Pivoted pad:
 This subclass is indented under subclass 223.  Subject matter wherein the resilient mounting element is for supporting a bearing on an element that turns about an axis.
(1) Note. The supporting, or holding means can be either formed partly, or wholly of resilient material.
  
[List of Patents for class 384 subclass 225]    225Helical coil spring:
 This subclass is indented under subclass 223.  Subject matter wherein the resilient means is a spring where several convolutions of a coil lie in different planes.
  
[List of Patents for class 384 subclass 226]    226For vertical shaft:
 This subclass is indented under subclass 129.  Subject matter wherein the bearing receives force from a shaft whose axis is perpendicular to a horizontal plane.

SEE OR SEARCH THIS CLASS, SUBCLASS:

193+,for a self-adjusting vertical shaft and a bearing.
  
[List of Patents for class 384 subclass 227]    227Spinning spindle:
 This subclass is indented under subclass 226.  Subject matter having means for supporting a spindle e.g., shafts for bobbins in a bolster, cylindrical races, or supports, of a spinning machine.

SEE OR SEARCH CLASS:

57Textiles: Spinning, Twisting, and Twining,   subclasses 129+ for receiving elements.
  
[List of Patents for class 384 subclass 228]    228With thrust and radial bearing:
 This subclass is indented under subclass 227.  Subject matter including both a thrust bearing and a radial bearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

126+,for plain bearing and an antifriction bearing.
194,for a self-adjusting vertical shaft with a lower thrust and upper radical bearing.
420,for trust bearings and see search notes.
  
[List of Patents for class 384 subclass 229]    229Adjustable spindle:
 This subclass is indented under subclass 228.  Subject matter having means for moving the spindle with respect to the bolster.
  
[List of Patents for class 384 subclass 230]    230Laterally resilient:
 This subclass is indented under subclass 228.  Subject matter wherein the spindle is yieldingly maintained in a vertical position by the use of a spring, rubber, etc.
  
[List of Patents for class 384 subclass 231]    231Resilient sleeve:
 This subclass is indented under subclass 230.  Subject matter wherein the means yieldingly maintaining the spindle in a vertical position is an element of cylindrical shape and the inner surface contacts the spindle.
  
[List of Patents for class 384 subclass 232]    232Volute coil spring:
 This subclass is indented under subclass 230.  Subject matter wherein the means yieldingly maintaining the spindle in a vertical position is a spring where several convolutions of a coil lie in the same plane.
  
[List of Patents for class 384 subclass 233]    233Helical coil spring:
 This subclass is indented under subclass 230.  Subject matter wherein the means yieldingly maintaining the spindle in a vertical position is a spring where several convolutions of a coil lie in different planes.
  
[List of Patents for class 384 subclass 234]    234Fluid damping:
 This subclass is indented under subclass 230.  Subject matter wherein a specified fluid means is used for damping the spindle lateral movement.
  
[List of Patents for class 384 subclass 235]    235Rubber:
 This subclass is indented under subclass 230.  Subject matter wherein the means yieldingly maintaining the spindle in a vertical position is an elastomeric element.
  
[List of Patents for class 384 subclass 236]    236At fixed end:
 This subclass is indented under subclass 235.  Subject matter wherein the elastomeric element is located at a fixed end of the spindle.
  
[List of Patents for class 384 subclass 237]    237With interior dead shaft:
 This subclass is indented under subclass 228.  Subject matter wherein the spindle is mounted on and centered by a fixed shaft e.g., post, stud shaft, etc.
  
[List of Patents for class 384 subclass 238]    238Pivoting spindle:
 This subclass is indented under subclass 228.  Subject matter having means for allowing the spindle to rock about a point.
  
[List of Patents for class 384 subclass 239]    239Bolster type bearing:
 This subclass is indented under subclass 227.  Subject matter having means for securing the bearing to a support.
(1) Note. Bolster is the name given to a bearing used in spinning frame and is usually secured to a rail.
  
[List of Patents for class 384 subclass 240]    240Lower end thrust bearing:
 This subclass is indented under subclass 227.  Subject matter wherein the thrust bearing supports the spindle shaft at the shaft end, or near the end.
(1) Note. The shaft end can have a smaller diameter than the main part wherein the thrust bearing then supports the shaft at that area.

SEE OR SEARCH THIS CLASS, SUBCLASS:

243,for a lower end thrust bearing for a spinning spindle.
  
[List of Patents for class 384 subclass 241]    241With lubricating means:
 This subclass is indented under subclass 227.  Subject matter including means for allowing a lubricant to flow to a bearing surface, or means for applying a lubricant to a bearing surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

322,for lubricating means for a radial bearing and see search notes.

SEE OR SEARCH CLASS:

57Textiles: Spinning, Twisting, and Twining,   subclasses 133+ for lubricating means for receiving elements.
  
[List of Patents for class 384 subclass 242]    242Base supported table or drum:
 This subclass is indented under subclass 226.  Subject matter wherein the bearing is for holding a vertically revolving table, drum, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

420+,for thrust bearings and see search notes.
  
[List of Patents for class 384 subclass 243]    243Lower end thrust bearing:
 This subclass is indented under subclass 226.  Subject matter wherein a thrust bearing supports the vertical shaft at the shaft end, or near the end.
(1) Note. The shaft end can have smaller diameter than the main part wherein the thrust bearing then supports the shaft at that area.

SEE OR SEARCH THIS CLASS, SUBCLASS:

240,for a lower end thrust bearing of general use.
  
[List of Patents for class 384 subclass 244]    244For shaped shaft end:
 This subclass is indented under subclass 243.  Subject matter wherein the lower end of the shaft is shaped to engage the thrust bearing, or to engage an element, e.g., ball, supported by the thrust bearing.
  
[List of Patents for class 384 subclass 245]    245Spherical shaft end:
 This subclass is indented under subclass 244.  Subject matter wherein the shaft end is globular shaped so as to form a tangential point.
  
[List of Patents for class 384 subclass 246]    246Conical shaft end:
 This subclass is indented under subclass 244.  Subject matter wherein the shaft end is cone shaped.
  
[List of Patents for class 384 subclass 247]    247With adjustment means:
 This subclass is indented under subclass 129.  Subject matter including means to move the bearing, or structure supporting the bearing.

SEE OR SEARCH CLASS:

105Railway Rolling Stock,   subclasses 218+ for axle Box mounting for trucks.
267Spring Devices,   subclass 265 for an adjustment for moving a pivotal end connection for a vehicle leaf spring.
  
[List of Patents for class 384 subclass 248]    248For thrust bearing:
 This subclass is indented under subclass 247.  Subject matter wherein the means for adjusting the bearing is for controlling thrust pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

420+,for thrust bearings and see search notes.
  
[List of Patents for class 384 subclass 249]    249Threaded member moves axially:
 This subclass is indented under subclass 248.  Subject matter wherein a screw element is moved along the axis of a bearing for adjustment.
(1) Note. The threaded member can be integral with the thrust bearing.
  
[List of Patents for class 384 subclass 250]    250For crankshaft:
 This subclass is indented under subclass 248.  Subject matter wherein the bearing either supports, or is carried by a crankshaft.

SEE OR SEARCH THIS CLASS, SUBCLASS:

294,for a sleeve, or liner for a crankshaft.
  
[List of Patents for class 384 subclass 251]    251For thrust plate:
 This subclass is indented under subclass 248.  Subject matter wherein the adjusting means moves a member in the shape of a disk, flat piece of material, etc. which is placed at the end of a shaft for the purpose of taking the thrust.
  
[List of Patents for class 384 subclass 252]    252And support:
 This subclass is indented under subclass 247.  Subject matter including bearing holding structure which holds the adjusting means for positioning of the bearing.

SEE OR SEARCH CLASS:

474Endless Belt Power Transmission Systems or Components,   subclasses 113+ , for bearings which are moved, with their supported shafts and pulleys, for the purpose of tensioning a belt.
  
[List of Patents for class 384 subclass 253]    253Simultaneous adjustment:
 This subclass is indented under subclass 252.  Subject matter wherein a plurality of bearings are simultaneously adjusted by actuation of the adjusting means.
  
[List of Patents for class 384 subclass 254]    254For horse power or sand reel:
 This subclass is indented under subclass 252.  Subject matter wherein the bearing is for use with means that is driven by a horse, or a sand reel mechanism.
  
[List of Patents for class 384 subclass 255]    255Eccentric:
 This subclass is indented under subclass 252.  Subject matter wherein the bearing is eccentric, or is mounted in an eccentric support and can be adjusted by rotation.

SEE OR SEARCH CLASS:

403Joints and Connections,   subclasses 145+ for similar structure in an anticulated joint.
  
[List of Patents for class 384 subclass 256]    256For roller end support:
 This subclass is indented under subclass 252.  Subject matter wherein the bearing is for supporting the end of a press, or conveying roller.
  
[List of Patents for class 384 subclass 257]    257For suspended shaft:
 This subclass is indented under subclass 252.  Subject matter wherein the bearing support structure extends from a surface, usually overhead, and is for supporting a shaft.
(1) Note. These assemblies are sometimes referred to as shaft hangers.
  
[List of Patents for class 384 subclass 258]    258Screw adjustment:
 This subclass is indented under subclass 257.  Subject matter wherein the adjusting means includes a rotatable threaded member.
  
[List of Patents for class 384 subclass 259]    259Horizontal and vertical:
 This subclass is indented under subclass 258.  Subject matter which include both horizontally and vertically acting screw adjusting means.
  
[List of Patents for class 384 subclass 260]    260Rectilinear:
 This subclass is indented under subclass 252.  Subject matter wherein the adjusting means act in a linear direction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

257+,for a suspended shaft rectilinear adjusting means.
  
[List of Patents for class 384 subclass 261]    261Bearing surface:
 This subclass is indented under subclass 247.  Subject matter wherein the adjusting means acts to adjust one portion of the bearing contact surface with respect to another portion of the bearing contact surface, or to apply pressure to an area of bearing contact surface.
  
[List of Patents for class 384 subclass 262]    262For axle:
 This subclass is indented under subclass 261.  Subject matter wherein the adjusting means is for moving a tapered sleeve, or adapted to compensate for wear on a stub axle, or axle rotatably mounting a wheel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

202+,for bearings having resilient wear compensating adjusting means.

SEE OR SEARCH CLASS:

301Land Vehicles: Wheels and Axles,   subclass 115 for screw attached wheel attaching devices having an adjustable plural part nut.
  
[List of Patents for class 384 subclass 263]    263Adjustable bearing surface segment:
 This subclass is indented under subclass 261.  Subject matter wherein the adjusting means acts on a discreet, relatively movable, section of the bearing contact surface.
  
[List of Patents for class 384 subclass 264]    264Axial adjustment:
 This subclass is indented under subclass 263.  Subject matter wherein the adjusting means acts to move the adjustable bearing surface segment in an axial direction.
  
[List of Patents for class 384 subclass 265]    265Axially spaced annular segments:
 This subclass is indented under subclass 263.  Subject matter wherein the adjustable bearing surface segment comprises a wholly, or partially circumferentially extending annular segment which is relatively radially adjustable and axially spaced with respect to another annular bearing contact surface segment.
  
[List of Patents for class 384 subclass 266]    266Two opposed bearing surface segments:
 This subclass is indented under subclass 263.  Subject matter wherein the bearing contact surface consists of two diametrically opposed relatively adjustable bearing surface supports.
  
[List of Patents for class 384 subclass 267]    267With wedge adjustment:
 This subclass is indented under subclass 266.  Subject matter wherein the adjusting means includes a tapered, or cam element which acts to position the adjustable bearing surface segment.
  
[List of Patents for class 384 subclass 268]    268For connecting rod:
 This subclass is indented under subclass 267.  Subject matter wherein the bearing is for use with a connecting rod.
  
[List of Patents for class 384 subclass 269]    269Transverse screw adjustment:
 This subclass is indented under subclass 268.  Subject matter wherein the wedge element is adjusted by a threaded element extending in directing crosswise to both the connecting rod axis and the bearing axis.
  
[List of Patents for class 384 subclass 270]    270For connecting rod:
 This subclass is indented under subclass 266.  Subject matter wherein the bearing is for use with a connecting rod.

SEE OR SEARCH THIS CLASS, SUBCLASS:

268+,for connecting rod bearing having a wedge adjustment.
430,for a nonadjustable connecting rod bearing.
  
[List of Patents for class 384 subclass 271]    271Tapered sleeve:
 This subclass is indented under subclass 261.  Subject matter wherein the bearing contact surface is tapered so that it can be adjusted to take up wear.
(1) Note. Bearing assemblies wherein the bearing contact surface involves more than a single tapered sleeve, or where the tapered sleeve is formed of a plurality of discreet segments are found in subclasses 263+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

263+,for bearing surface segments.
  
[List of Patents for class 384 subclass 272]    272Split:
 This subclass is indented under subclass 271.  Subject matter wherein the tapered sleeve is cut, or open longitudinally of its axis.
(1) Note. Although split, all tapered sleeves in this subclass are single, unitary members.
  
[List of Patents for class 384 subclass 273]    273Split sleeve:
 This subclass is indented under subclass 261.  Subject matter wherein the bearing contact surface is cut, or open longitudinally of its axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

272,for tapered split sleeve.
  
[List of Patents for class 384 subclass 274]    274Pressure applying:
 This subclass is indented under subclass 261.  Subject matter wherein the adjusting means acts to apply force to a portion of a unitary bearing contact surface defining member.
  
[List of Patents for class 384 subclass 275]    275Radial collar and sleeve:
 This subclass is indented under subclass 129.  Subject matter having an element of tube shape and an element that embraces and extends radially beyond the tube element and are mounted on the shaft, which transmits thrust.
  
[List of Patents for class 384 subclass 276]    276Specified sleeve or liner:
 This subclass is indented under subclass 129.  Subject matter wherein one of the bearing contact surfaces is defined by an annular member having substantially cylindrical inner and outer surfaces, the thickness between said inner and outer surfaces being less than the radius of said inner surface.
(1) Note. This subclass does not include patents which claim a bearing element solely by setting forth the material of which it is made, of which see the appropriate composition, or stock material classes. In this connection the following classes should be considered.

SEE OR SEARCH CLASS:

16Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclasses 2.1+ , for similar bushings which line openings, or sockets to reinforce the same and/or provide a smooth surface to prevent abrasion of elements passing therethrough or there into, without constituting a bearing.
29Metal Working,   subclasses 898+ for methods of making bearings.
75Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures,   for articles defined solely by their metal, or alloy composition.
138Pipes and Tubular Conduits,   for hollow, or tubular stock.
148Metal Treatment,   particularly subclass 400 .
156Adhesive Bonding and Miscellaneous Chemical Manufacture,   appropriate subclass for methods of making a machine element, or bearing by a laminating operation.
252Compositions,   subclasses 9+ for lubricating compositions and especially subclasses 12+ for bearings having a lubricating function claimed solely in terms of their compositions.
295Railway Wheels and Axles,   subclass 35 , for bushings for railway car wheels.
384Bearings,   subclasses 53+ for journal brasses and subclass 216 for antifriction bearings.
415Rotary Kinetic Fluid Motors or Pumps,   subclasses 170.1+ and 230+ for a motor, or pump bearing, seal, or liner and including pump, or fluid motor structure of the type there classifiable.
428Stock Material or Miscellaneous Articles,   appropriate subclasses, for a stock material product in the form of a single, or plural layer web, or sheet not elsewhere classified.
  
[List of Patents for class 384 subclass 277]    277Insulating:
 This subclass is indented under subclass 276.  Subject matter wherein either the sleeve, liner, or supporting structure is made of a material selected for its thermal, or electrical insulating properties.
  
[List of Patents for class 384 subclass 278]    278Temperature compensating:
 This subclass is indented under subclass 276.  Subject matter designed to compensate for changes in temperature, e.g., operate at high temperatures.

SEE OR SEARCH THIS CLASS, SUBCLASS:

317+,for specified cooling means for a bearing.
  
[List of Patents for class 384 subclass 279]    279Porous metal:
 This subclass is indented under subclass 276.  Subject matter wherein either the sleeve, liner, or a support structure has pores through which the lubricant may pass.
(1) Note. The holes are in a patter, or array form.

SEE OR SEARCH THIS CLASS, SUBCLASS:

293,for an array of holes for lubricant.
  
[List of Patents for class 384 subclass 280]    280Liner on shaft:
 This subclass is indented under subclass 276.  Subject matter wherein the liner, or sleeve is mounted on a shaft.
  
[List of Patents for class 384 subclass 281]    281Removably secured:
 This subclass is indented under subclass 280.  Subject matter wherein the liner, or sleeve can be separated for the shaft.
  
[List of Patents for class 384 subclass 282]    282Bearing surface insert:
 This subclass is indented under subclass 276.  Subject matter wherein the bearing surface of the sleeve, or liner is provided with a solid lubricating, or antifriction material set into its surface.
  
[List of Patents for class 384 subclass 283]    283Groove:
 This subclass is indented under subclass 282.  Subject matter wherein the insert is mounted in a narrow furrow, hollow cut, etc., in the bearing surface.
  
[List of Patents for class 384 subclass 284]    284Pocket array:
 This subclass is indented under subclass 282.  Subject matter wherein there is more than one insert which are mounted in a regular pattern of holes formed in the bearing surface.
  
[List of Patents for class 384 subclass 285]    285Circular pocket:
 This subclass is indented under subclass 284.  Subject matter wherein the pockets have circular cross-sections.
  
[List of Patents for class 384 subclass 286]    286Lubricant distributing:
 This subclass is indented under subclass 276.  Subject matter wherein the bearing surface of the sleeve, or liner is contoured to facilitate the distribution of lubricant over the bearing surface.
(1) Note. Lubricant bearings for shafts which do not have sleeves on liners are in subclasses 397+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

322,for lubricating of general use.
397+,for lubricating a shaft.

SEE OR SEARCH CLASS:

267Spring Devices,   subclass 264 and 268 for lubrication features on a connecting bearing for a vehicle leaf spring.
  
[List of Patents for class 384 subclass 287]    287High speed:
 This subclass is indented under subclass 286.  Subject matter wherein the lubricant sleeve is designed to operate at speeds greater than 30,000 r.p.m.
  
[List of Patents for class 384 subclass 288]    288For crankshaft:
 This subclass is indented under subclass 286.  Subject matter wherein the lubricant distributing sleeve is for use on a crankshaft.

SEE OR SEARCH THIS CLASS, SUBCLASS:

294,for a sleeve for a crankshaft.
  
[List of Patents for class 384 subclass 289]    289For rotary member:
 This subclass is indented under subclass 286.  Subject matter wherein the lubricant distributing sleeve is for a rotary element, e.g., wheel, pulley, etc. which is to be mounted on a fixed support, e.g., shaft.

SEE OR SEARCH THIS CLASS, SUBCLASS:

416+,for a rotary member and broadly recited plain bearing.
  
[List of Patents for class 384 subclass 290]    290Outer sleeve or shaft:
 This subclass is indented under subclass 289.  Subject matter wherein the lubricant distributing sleeve is nonrotatably mounted on an end of a fixed axle.
  
[List of Patents for class 384 subclass 291]    291Groove:
 This subclass is indented under subclass 286.  Subject matter wherein lubricant is distributed by narrow furrow, hollow cut, etc. in the bearing surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

378,for spiral groove in an axle, or hub for lubricant.
  
[List of Patents for class 384 subclass 292]    292Helical or herring bone:
 This subclass is indented under subclass 291.  Subject matter wherein the grooves are arranged in either a helical, or a herring bone configuration.
  
[List of Patents for class 384 subclass 293]    293Pocket array:
 This subclass is indented under subclass 286.  Subject matter wherein a regular pattern of lubricant distributing holes is formed on the bearing surface of the sleeve, or liner.

SEE OR SEARCH THIS CLASS, SUBCLASS:

279,for a sleeve, or liner made of porous material.
  
[List of Patents for class 384 subclass 294]    294For crankshaft:
 This subclass is indented under subclass 276.  Subject matter wherein the sleeve, or liner supports, or is carried by a crankshaft.

SEE OR SEARCH THIS CLASS, SUBCLASS:

250,for a thrust bearing for a crankshaft.
  
[List of Patents for class 384 subclass 295]    295Mounting feature:
 This subclass is indented under subclass 276.  Subject matter wherein the sleeve includes structure to facilitate the mounting thereof in the bearing support.

SEE OR SEARCH THIS CLASS, SUBCLASS:

280+,for a liner mounted on a shaft.
  
[List of Patents for class 384 subclass 296]    296Radial protrusion or sleeve end flange:
 This subclass is indented under subclass 295.  Subject matter wherein the sleeve mounting structure includes an outwardly extending radial protrusion, or a pair of outwardly expanding flanges located on opposite ends of the sleeve.
  
[List of Patents for class 384 subclass 297]    297Nonmetal:
 This subclass is indented under subclass 276.  Subject matter wherein the sleeve, or liner, or the bearing contact surface thereof, is formed of a nonmetallic material, e.g., plastic, wood, etc.
  
[List of Patents for class 384 subclass 298]    298Fabric layer and capillary passages:
 This subclass is indented under subclass 297.  Subject matter wherein the sleeve either includes a woven fabric layer, or is formed with capillary passages opening to the bearing contact surface.
  
[List of Patents for class 384 subclass 299]    299Nylon:
 This subclass is indented under subclass 297.  Subject matter comprising a layer which contains a polymeric compound is next to a polyester containing layer.
  
[List of Patents for class 384 subclass 300]    300Polytetrafluorethylene:
 This subclass is indented under subclass 297.  Subject matter comprising a layer which contains fluorine.
  
[List of Patents for class 384 subclass 301]    301Spirally split:
 This subclass is indented under subclass 276.  Subject matter wherein the sleeve, or liner is separated divided, etc. along a spiral, or helical line.
  
[List of Patents for class 384 subclass 302]    302Distributed weight:
 Subject matter undersubclass 129 having means for distributing a load over the entire bearing.
  
[List of Patents for class 384 subclass 303]    303For thrust bearing:
 This subclass is indented under subclass 302.  Subject matter comprising means for spreading the thrust over various thrust bearing parts.

SEE OR SEARCH THIS CLASS, SUBCLASS:

420+,for thrust bearings and see search notes.
  
[List of Patents for class 384 subclass 304]    304Tandem thrust:
 This subclass is indented under subclass 303.  Subject matter wherein various thrust bearing parts are axially spaced and means are provided to relate the thrust force on one part to the thrust force on another.
  
[List of Patents for class 384 subclass 305]    305Grooved:
 This subclass is indented under subclass 303.  Subject matter wherein the thrust distributing means comprises grooves in a bearing surface.
  
[List of Patents for class 384 subclass 306]    306Pivoted pad:
 This subclass is indented under subclass 303.  Subject matter wherein the load distribution means has a rocking, or tilting movement and forms only a segment of a bearing surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

228+,for a load distributing pivoted pad and see search notes.
  
[List of Patents for class 384 subclass 307]    307With lubricating means:
 This subclass is indented under subclass 306.  Subject matter including means for allowing a lubricant to flow to a bearing surface.
  
[List of Patents for class 384 subclass 308]    308Pad mounting structure:
 This subclass is indented under subclass 306.  Subject matter having specified means for holding or supporting the pad.

SEE OR SEARCH THIS CLASS, SUBCLASS:

312,for tilting pad mounting structure.
  
[List of Patents for class 384 subclass 309]    309Pivoted pad:
 This subclass is indented under subclass 302.  Subject matter wherein the load distribution means has a rocking, or tilting movement and forms only a segment of a bearing surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

117,for a radial bearing having a pivoted fluid pad.
122,for a thrust bearing having pivoted fluid pad.
306,for a thrust bearing pivoted pad.
  
[List of Patents for class 384 subclass 310]    310Noncircumferential:
 This subclass is indented under subclass 309.  Subject matter wherein a radially outer relatively rotating bearing structure is semicircular, or less in extent.
  
[List of Patents for class 384 subclass 311]    311Lubricant supply structure:
 This subclass is indented under subclass 309.  Subject matter including means in the bearing for allowing lubricant to reach a bearing surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

322+,for lubricating structure of a bearing.
  
[List of Patents for class 384 subclass 312]    312Pad mounting structure:
 This subclass is indented under subclass 309.  Subject matter having specified means for holding, or supporting the pad.

SEE OR SEARCH THIS CLASS, SUBCLASS:

308,for pad mounting structure for a thrust bearing.
  
[List of Patents for class 384 subclass 313]    313Cooling by lubricant:
 This subclass is indented under subclass 129.  Subject matter wherein a lubricant also lowers the temperature at the bearing to keep the temperature from getting too high.

SEE OR SEARCH THIS CLASS, SUBCLASS:

317+,for specified cooling means.
322,for lubricating a bearing where the lubricant does not act as a coolant.

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184Lubrication,   subclass 104 , for heating and cooling devices for lubricators.
  
[List of Patents for class 384 subclass 314]    314Emergency lubrication:
 This subclass is indented under subclass 313.  Subject matter having means for supplying lubrication and cooling fluid because of a generally unexpected occurrence.
  
[List of Patents for class 384 subclass 315]    315Water lubrication:
 This subclass is indented under subclass 313.  Subject matter wherein a lubricating and cooling medium is water.

SEE OR SEARCH THIS CLASS, SUBCLASS:

97,for water lubricated propellor shaft and well shaft.
  
[List of Patents for class 384 subclass 316]    316Fluid path:
 This subclass is indented under subclass 313.  Subject matter having means defining a flow passage for the lubricating fluid.
(1) Note. The lubricant also acts as the cooling means.

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321,for a coolant path.
  
[List of Patents for class 384 subclass 317]    317Specified cooling means:
 This subclass is indented under subclass 129.  Subject matter wherein the bearing is cooled by a medium other than a lubricant, e.g., radiatory means, by a separate fluid in passage through the bearing, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

278,for temperature compensating sleeve, or liner.
313+,for a cooling lubricant.
900,for cooling or heating not designated in the regular schedule.
  
[List of Patents for class 384 subclass 318]    318Mist:
 This subclass is indented under subclass 317.  Subject matter wherein the lubricant is suspended in a gaseous coolant.

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496,for cooling, heating or insulating an antifriction bearing.
900,for cooling or heating not designated in the regular schedule.
  
[List of Patents for class 384 subclass 319]    319Frozen lubricant:
 This subclass is indented under subclass 317.  Subject matter wherein the liquid lubricant is congealed by cold.
(1) Note. The frozen lubricant is used at room temperature wherein it is frozen all, or some of the time.
  
[List of Patents for class 384 subclass 320]    320Nonliquid cooling:
 This subclass is indented under subclass 317.  Subject matter wherein the cooling means comprises a medium other than a liquid.
  
[List of Patents for class 384 subclass 321]    321Coolant path:
 This subclass is indented under subclass 317.  Subject matter wherein the coolant flows through specified passage.
  
[List of Patents for class 384 subclass 322]    322Lubricating:
 This subclass is indented under subclass 129.  Subject matter having means in the bearing for allowing a lubricant to reach a bearing surface.

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286,for lubricating means in a bearing sleeve, or liner.
307,for lubricating means for thrust bearings and cooling means.
313,for lubricating and cooling means.
462+,for lubricating an antifriction bearing.

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123Internal-Combustion Engines,   appropriate subclasses for lubrication of engine bearing elements
184Lubrication,   for lubricating means not part of bearing.
267Spring Devices,   subclass 268 for an end connection for a vehicle leaf spring and having a lubrication feature.
  
[List of Patents for class 384 subclass 368]    368For thrust bearing:
 This subclass is indented under subclass 322.  Subject matter wherein lubricating is for a bearing designed for loads imposed in the direction of the axis of rotation.

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420,for thrust plain bearing and see search notes.
  
[List of Patents for class 384 subclass 369]    369Forced feed:
 This subclass is indented under subclass 368.  Subject matter wherein the lubricant is supplied to a bearing surface by pressure.
(1) Note. Included are pump systems and bearings grooved, or otherwise altered so that lubricant under pressure can be supplied to the bearing surface, a reservoir, or pressure normally produced by rotation of a shaft is not proper for this subclass.
(2) Note. If the lubricant supports one of two relatively rotating elements to the extent that there is positive clearance between them in operation, the patent is in subclasses 100+.

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100+,for a fluid bearing.
373,for means to force feed a lubricant to a bearing between a fixed axle and an element rotatably supported thereon.
398,for means to force feed a lubricant to a bearing which cooperates with a rotary shaft.
400,401+ and 403+, for a lubricant reservoir.
  
[List of Patents for class 384 subclass 370]    370Capillary:
 This subclass is indented under subclass 368.  Subject matter wherein the lubricant is conveyed by capillary means to the bearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

379,for capillary means for lubricating a radial bearing and see search notes.
  
[List of Patents for class 384 subclass 371]    371For bearing at end of shaft:
 This subclass is indented under subclass 368.  Subject matter wherein the lubricant is supplied to bearing surface which is located at the end of a shaft.
  
[List of Patents for class 384 subclass 372]    372Fixed shaft:
 This subclass is indented under subclass 322.  Subject matter for the lubrication of a bearing surface between a stationary axle and an element rotatably supported thereon.
(1) Note. The device usually involves some modification of the axle itself.
  
[List of Patents for class 384 subclass 373]    373Forced feed:
 This subclass is indented under subclass 372.  Subject matter having means to supply the lubricant to the bearing by pressure.
(1) Note. Included are pump systems and bearings grooved, or otherwise alterwise altered so that lubricant under pressure can be supplied to the bearing surface. A reservoir, or pressure normally produced by rotation of a shaft is not proper for this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

369,for lubricant force feed to a thrust bearing and see search notes.
  
[List of Patents for class 384 subclass 374]    374Yoke reservoir:
 This subclass is indented under subclass 372.  Subject matter having means for holding the lubricant which is shaped so that the holding means is on both sides of a rotating element.
  
[List of Patents for class 384 subclass 375]    375Shaft-supported reservoir:
 This subclass is indented under subclass 372.  Subject matter having means to hold the lubricant which is held on the axle.
  
[List of Patents for class 384 subclass 376]    376At end of shaft:
 This subclass is indented under subclass 375.  Subject matter wherein the reservoir is held at one of the extremities of the axle.
  
[List of Patents for class 384 subclass 377]    377Specified external feed:
 This subclass is indented under subclass 372.  Subject matter wherein the lubricant is supplied to the axle surface by a particularly described means for allowing the lubricant to flow from an area not enclosed in the axle.
  
[List of Patents for class 384 subclass 378]    378Spiral groove:
 This subclass is indented under subclass 377.  Subject matter wherein the lubricant is distributed to the bearing surface by a narrow furrow, hollow cut, etc. in the form of a spiral on an axle, or hub.

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291+,for a groove in sleeve or liner for lubricant.
  
[List of Patents for class 384 subclass 379]    379Capillary:
 This subclass is indented under subclass 377.  Subject matter wherein a capillary means is used to convey the lubricant to the axle surface.

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160+,for lubricating a rotating shaft of a railway car journal.
370,for capillary means used with a thrust bearing.
382,and 383, for capillary means used with a fixed shaft internal feed.
387,for capillary means used with a rotating reservoir.
402,and 405+, for capillary means used with a reservoir external to a bearing.
  
[List of Patents for class 384 subclass 380]    380Internal feed:
 This subclass is indented under subclass 372.  Subject matter in which the lubricant is supplied to the axle surface by a passage through the axle.
  
[List of Patents for class 384 subclass 381]    381Internal reservoir:
 This subclass is indented under subclass 380.  Subject matter wherein the axle is bored out to form a reservoir for supplying lubricant to the axle surface.
  
[List of Patents for class 384 subclass 382]    382Capillary:
 This subclass is indented under subclass 381.  Subject matter wherein a capillary means is used to convey the lubricant to the axle surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

379,for capillary means for lubricating a radial bearing and see search notes.
  
[List of Patents for class 384 subclass 383]    383Capillary:
 This subclass is indented under subclass 380.  Subject matter wherein a capillary means in used to convey the lubricant to the axle surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

379,for capillary means for lubricating a radial bearing and see search notes.
  
[List of Patents for class 384 subclass 384]    384Clearer or agitator:
 This subclass is indented under subclass 372.  Subject matter having an element which is inserted into a lubricating passage for the purpose of opening the passage, or for stirring the lubricant therein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

395,for an agitator in a reservoir that rotates about an axis.
  
[List of Patents for class 384 subclass 385]    385Reservoir in rotating member:
 This subclass is indented under subclass 322.  Subject matter wherein the rotating element carries, or is constructed with a reservoir for lubricant.
  
[List of Patents for class 384 subclass 386]    386Removable reservoir:
 This subclass is indented under subclass 385.  Subject matter wherein the reservoir can be separated for the rotating support.
  
[List of Patents for class 384 subclass 387]    387Capillary:
 This subclass is indented under subclass 385.  Subject matter wherein a capillary means is used to convey the lubricant from the reservoir to the axle surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

379,for capillary means for lubricating a radial bearing and see search notes.
  
[List of Patents for class 384 subclass 388]    388With feed regulator:
 This subclass is indented under subclass 385.  Subject matter having means for controlling the rate of flow from the reservoir to the bearing surface, e.g., by a value.
  
[List of Patents for class 384 subclass 389]    389Feed to shaft end and center:
 This subclass is indented under subclass 385.  Subject matter having means for feeding the lubricant simultaneously to the center and end of the axle from the rotating member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

390,for lubricant to end of axle.
391,for lubricant to center of axle.
  
[List of Patents for class 384 subclass 390]    390End feed:
 This subclass is indented under subclass 385.  Subject matter having means for feeding the lubricant to the end of the axle, usually from a reservoir at the side of the rotating member.
  
[List of Patents for class 384 subclass 391]    391Center feed:
 This subclass is indented under subclass 385.  Subject matter having means for feeding the lubricant to the center of the axle, usually from a reservoir in the center of the rotating element.
  
[List of Patents for class 384 subclass 392]    392Including distributing means:
 This subclass is indented under subclass 385.  Subject matter having an element which spreads the lubricant over the bearing surface.
  
[List of Patents for class 384 subclass 393]    393Including inward deflector:
 This subclass is indented under subclass 385.  Subject matter having at least one curved propeller, vane, tube, etc. which is used for carrying the lubricant to the bearing surface.
  
[List of Patents for class 384 subclass 394]    394Including rotary blade:
 This subclass is indented under subclass 385.  Subject matter wherein the rotating element has at least one propeller, vane, etc. attached to it and projects into the reservoir.
  
[List of Patents for class 384 subclass 395]    395With agitator:
 This subclass is indented under subclass 385.  Subject matter including an element member for stirring up the lubricant thereby aiding in applying the lubricant to the shaft surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

384,for an agitator within a lubricating passage.
  
[List of Patents for class 384 subclass 396]    396Bolt type shaft:
 This subclass is indented under subclass 32.  Subject matter for lubricating the engaging surfaces of a bolt and a member turnably mounted thereon.
(1) Note. This subclass includes vehicle suspension spring shackle bolt lubrication.

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16Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclass 161 for lubricated hinges.
74Machine Element or Mechanism,   subclass 257 , for lubricated sprocket chain pins.
367Communications, Electrical: Acoustic Wave System and Devices,   subclass 54 , for end connections for vehicle leaf springs.
  
[List of Patents for class 384 subclass 397]    397For rotary shaft:
 This subclass is indented under subclass 322.  Subject matter for the lubrication of a bearing for rotating shaft.

SEE OR SEARCH THIS CLASS, SUBCLASS:

160+,for lubricating a rotating shaft of a railway car journal.
  
[List of Patents for class 384 subclass 398]    398Forced feed:
 This subclass is indented under subclass 397.  Subject matter having means to supply the lubricant to the bearings by pressure.
(1) Note. Included are pump systems and bearings groove, or otherwise altered so that lubricant under pressure can be supplied to the bearing surface. A reservoir, or pressure normally produced by rotation of a shaft is not proper for this subclass.
(2) Note. If the lubricant supports one of the two relatively rotating elements to the extent that there is positive clearance between them in operation, the patents are placed in 100+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

369,for lubricant force feed to a thrust bearing and see search notes.
  
[List of Patents for class 384 subclass 399]    399Lubricant metering structure:
 This subclass is indented under subclass 398.  Subject matter having specified means in the bearing structure to promote uniform lubrication flow.
  
[List of Patents for class 384 subclass 400]    400Reservoir external to bearing:
 This subclass is indented under subclass 397.  Subject matter having a receptacle which is separate from the bearing, or bearing support and supplies lubricant to the bearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

372+,for reservoir used with a fixed shaft.
401,for an upper reservoir which is part of the bearing, or bearing support.
403,for a lower reservoir which is part of the bearing, or bearing support.
  
[List of Patents for class 384 subclass 401]    401Upper reservoir for horizontal shaft:
 This subclass is indented under subclass 397.  Subject matter having a receptacle wherein the receptacle bottom is above a horizontal shaft and the lubricant is supplied to the bearing from above the axis of the shaft.

SEE OR SEARCH THIS CLASS, SUBCLASS:

400,for a reservoir external to a bearing, or bearing support and see search note.
  
[List of Patents for class 384 subclass 402]    402Capillary:
 This subclass is indented under subclass 401.  Subject matter wherein a capillary means is used to convey the lubricant from the upper reservoir to the bearing surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

379,for capillary means for lubricating a radial bearing and see search notes.
  
[List of Patents for class 384 subclass 403]    403Lower reservoir for horizontal shaft:
 This subclass is indented under subclass 397.  Subject matter having a receptacle wherein the receptacle bottom is below a horizontal shaft and the lubricant is supplied to the bearing from below the axis of the shaft.

SEE OR SEARCH THIS CLASS, SUBCLASS:

165+,for a lower reservoir for a railway car journal.
400,for a reservoir external to a bearing, or bearing support and see search notes.
  
[List of Patents for class 384 subclass 404]    404Shaft operated elevating means:
 This subclass is indented under subclass 403.  Subject matter having an element, other than the bearing member, operated by the shaft to raise lubricant to a point above the bottom of the bearing surface and allows the lubricant flow to the bearing under low pressure, e.g., by gravity.

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398+,for all means supplying lubricant to the bearing surfaces under light pressure.

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184Lubrication,   subclasses 11.1+ and 13.1, for splash type lubricators.
  
[List of Patents for class 384 subclass 405]    405Band or chain:
 This subclass is indented under subclass 404.  Subject matter having a belt shaped element, or a flexible series of joined links, loosely carried by the shaft, dips into the lubricant.

SEE OR SEARCH THIS CLASS, SUBCLASS:

167,for a band lubricant feed means to a railway car bearing.
  
[List of Patents for class 384 subclass 406]    406Ring type:
 This subclass is indented under subclass 405.  Subject Subject matter wherein the means to raise the lubricant is circular and rigid.
  
[List of Patents for class 384 subclass 407]    407Roller or ball:
 This subclass is indented under subclass 404.  Subject matter wherein a cylindrical, or spherical shaped element raises the lubricant.
(1) Note. If the roller, or ball acts also as a bearing, see the appropriate roller-bearing subclass below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

177,for a roller applicator of lubricant to a shaft of a railway car journal.
  
[List of Patents for class 384 subclass 408]    408Capillary:
 This subclass is indented under subclass 403.  Subject matter wherein a capillary means is used to convey the lubricant from the lower reservoir to the bearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

379,for capillary means for lubricating a radial bearing and see search notes.
  
[List of Patents for class 384 subclass 409]    409With wick biasing means:
 This subclass is indented under subclass 408.  Subject matter including means tending to urge the wick against a bearing surface.
  
[List of Patents for class 384 subclass 410]    410With wick retainer:
 This subclass is indented under subclass 408.  Subject matter including specified means to hold, or support capillary means.
  
[List of Patents for class 384 subclass 411]    411Differing capillary properties:
 This subclass is indented under subclass 408.  Subject matter wherein the capillary means is made of more than one kind of capillary material which have distinct capillary properties.
  
[List of Patents for class 384 subclass 412]    412With lubricant impelling means:
 This subclass is indented under subclass 408.  Subject matter including means for pumping lubricant from one location to another.
  
[List of Patents for class 384 subclass 413]    413Wick structure:
 This subclass is indented under subclass 408.  Subject matter wherein the capillary means is a fibrous element having a specified configuration.

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252Composition,   subclass 425.5 for wick composition.
  
[List of Patents for class 384 subclass 414]    414Suction or pressure:
 This subclass is indented under subclass 403.  Subject matter having means to feed the bearing by a vacuum and/or back pressure.
  
[List of Patents for class 384 subclass 415]    415For vertical shaft:
 This subclass is indented under subclass 397.  Subject matter wherein the lubricating is for a bearing which receives a radial force from a shaft whose axis is perpendicular to a horizontal plane.

SEE OR SEARCH THIS CLASS, SUBCLASS:

368+,for lubricating a thrust bearing combined with a radial bearing.
  
[List of Patents for class 384 subclass 416]    416For rotary member:
 This subclass is indented under subclass 129.  Subject matter wherein the bearing assembly comprises a support and bearing for a generally cylindrical, or disk shaped rotary element e.g., wheel, pulley, etc.
(1) Note. A wheel, shaft, pulley, etc. can be claimed in name only with modifications provided for the bearing.

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289+,for lubricant distribution to a rotary member, e.g., sleeve, or liner.

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301Land Vehicles: Wheels and Axles,   subclasses 109+ , for axle boxes, 131, for axle spindles and 134+, for skein ended axis.
  
[List of Patents for class 384 subclass 417]    417Pulley:
 This subclass is indented under subclass 416.  Subject matter wherein the bearing is for a rotary element which is used to transmit, or receive power through a belt which travels over its face.

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474Endless Belt Power Transmission Systems or Components,   subclasses 151+ for pulley structure.
  
[List of Patents for class 384 subclass 418]    418Roller:
 This subclass is indented under subclass 416.  Subject matter wherein the bearing is for a rotary element having a cylindrical outer surface, or an outer surface shaped to engage a track.

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193Conveyors, Chutes, Skids, Guides, and Ways,   for general assembly of rolls, or the structure thereof.
198Conveyors: Power-Driven,   for general assembly of rolls, or the structure thereof.
492Roll or Roller,   subclasses 16+ for a roll, per se, not elsewhere provided for, in which the outer surface of the roll is rotatable relative to its supporting shaft.
  
[List of Patents for class 384 subclass 419]    419Elongated:
 This subclass is indented under subclass 418.  Subject matter wherein the length of the roller is greater than the diameter of the roller.
  
[List of Patents for class 384 subclass 420]    420Thrust bearing:
 This subclass is indented under subclass 129.  Subject matter designed for loads imposed in the direction of the axis of rotation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

105,for fluid thrust bearing with flexible elements.
107+,for fluid radial and thrust bearing.
121+,for a fluid thrust bearing.
161,for railway car thrust bearings.
193+,for a self adjusting thrust bearing for a vertical shaft.
223+,for a thrust bearing resiliently mounted.
228+,for a thrust and radial bearing for a vertical shaft.
242,for a lower end thrust bearing.
248+,for a thrust bearing with adjustment means.
303+,for a thrust bearing of the distributing weight type.
368,for a thrust bearing with lubricating means.
  
[List of Patents for class 384 subclass 421]    421For pivoted or towed vehicle:
 This subclass is indented under subclass 420.  Subject matter wherein the pressure, or force is at the center about which a trailer turns when connected to a vehicle pulling it. e.g., fifth wheel for a wagon.

SEE OR SEARCH CLASS:

105Railway Rolling Stock,   subclass 189 , for center plate bogies for railway trucks.
212Traversing Hoist,   subclass 70 for pivots for rotary cranes.
  
[List of Patents for class 384 subclass 422]    422For pivot of vehicle wheel frame:
 This subclass is indented under subclass 420.  Subject matter wherein the pressure, or force is at the center about which a support turns which is between a body e.g., railway car and wheels.
  
[List of Patents for class 384 subclass 423]    423For railway car side:
 This subclass is indented under subclass 420.  Subject matter wherein the pressure, or force is between the body bolster and truck bolster of a railway car and which are subject to intermittent loader as the car body tilts from a vertical axis.

SEE OR SEARCH CLASS:

105Railway Rolling Stock,   subclasses 200+ , for bolster connecting for bogies.
  
[List of Patents for class 384 subclass 424]    424Axially spaced collars:
 This subclass is indented under subclass 420.  Subject matter wherein the shaft is provided with a number of elements which embrace the shaft and are arranged in series along the shaft axis and which are adapted to be engaged and supported by annular projecting bearings mounted in a bearing casing.
  
[List of Patents for class 384 subclass 425]    425Including thrust plate at shaft end:
 This subclass is indented under subclass 420.  Subject matter having means in the shape of a disk, flat piece of material, etc. Which is placed at the end of the shaft for the purpose of taking the thrust.
  
[List of Patents for class 384 subclass 426]    426Plural end plates:
 This subclass is indented under subclass 425.  Subject matter wherein a series of plates, or disks are placed between the end of the shaft and the bearing casing.
  
[List of Patents for class 384 subclass 427]    427Axially related hub liner:
 This subclass is indented under subclass 425.  Subject matter wherein the plate is in the form of a washer, annular plate, etc. which embraces the shaft between a hub and a stationary element, or bearing.
  
[List of Patents for class 384 subclass 428]    428Mounting or support:
 This subclass is indented under subclass 129.  Subject matter having means to hold, or steady the bearing against the force of gravity.
(1) Note. The bearing is usually secured to the mounting, or support.

SEE OR SEARCH THIS CLASS, SUBCLASS:

537+,for mounting an antifriction ball bearing.
584+,for mounting an antifriction roller bearing.
620,for mounting an antifriction thrust bearing.
  
[List of Patents for class 384 subclass 429]    429For crankshaft:
 This subclass is indented under subclass 428.  Subject matter wherein the bearing is for supporting a shaft bent at right angles with respect to an engine etc., or is carried on a portion of a shaft bent at right angles.

SEE OR SEARCH THIS CLASS, SUBCLASS:

457+,for antifriction crankshaft bearing.

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74Machine Element or Mechanism,   subclasses 469+ for control lever and linkage system and subclasses 606+ for casings.
  
[List of Patents for class 384 subclass 430]    430Connecting rod:
 This subclass is indented under subclass 429.  Subject matter wherein the bearing carried in the crankshaft has an element which is to be joined to another element to cause motion.

SEE OR SEARCH THIS CLASS, SUBCLASS:

268,and 270, for an adjustable connecting rod bearing.
  
[List of Patents for class 384 subclass 431]    431Pedal type crank:
 This subclass is indented under subclass 429.  Subject matter wherein the bearing is for supporting an arm bent at right angle and designed for a foot pedal to be attached to one end of the arm.

SEE OR SEARCH THIS CLASS, SUBCLASS:

458,for an antifriction type pedal crank bearing.
  
[List of Patents for class 384 subclass 432]    432Block and cap type:
 This subclass is indented under subclass 429.  Subject matter wherein the bearing holding means comprises a base element for supporting the bottom part of a bearing surface and a top element for holding the upper part of a bearing surface and means to fasten the base and top together.

SEE OR SEARCH THIS CLASS, SUBCLASS:

434,for a block and cap of general use.
  
[List of Patents for class 384 subclass 433]    433Engine housing closure:
 This subclass is indented under subclass 432.  Subject matter wherein the block and cap are designed to seal, or close an opening in an engine housing in which a crankshaft is mounted.
  
[List of Patents for class 384 subclass 434]    434Block and cap type:
 This subclass is indented under subclass 428.  Subject matter wherein the bearing holding means comprises a base element for supporting the bottom part of a bearing surface and a top element for holding the upper part of a bearing surface and means to fasten the base and top together.

SEE OR SEARCH THIS CLASS, SUBCLASS:

432,for a block and cap for holding a crankshaft.
  
[List of Patents for class 384 subclass 435]    435Lock type:
 This subclass is indented under subclass 428.  Subject matter wherein part of the bearing contact surface is movable so as to release the rotating shaft from a fixed position in the bearing.
  
[List of Patents for class 384 subclass 436]    436Pivoted:
 This subclass is indented under subclass 435.  Subject matter wherein the movable bearing surface turns about a fixed point.
(1) Note. Locating elements which are elongated and have a curved bearing contact surface formed at one end are known in the art as "hook".
  
[List of Patents for class 384 subclass 437]    437Having bolt securing means:
 This subclass is indented under subclass 436.  Subject matter wherein the pivoted bearing surface is held in position by a threaded element.
  
[List of Patents for class 384 subclass 438]    438Machine housing:
 This subclass is indented under subclass 428.  Subject matter wherein the bearing supports a shaft extending into an interior wall of a substantially closed means that transmits, or changes the application of energy, e.g., an electric motor, a pump, etc.
  
[List of Patents for class 384 subclass 439]    439Mounted in wall aperture:
 This subclass is indented under subclass 428.  Subject matter wherein the bearing, or bearing support structure is designed to be held in an opening, or hole formed in a flat support surface.
  
[List of Patents for class 384 subclass 440]    440Bearing surface integral with support:
 This subclass is indented under subclass 428.  Subject matter wherein the bearing contact surface is formed with a major portion of the bearing support structure.
  
[List of Patents for class 384 subclass 441]    441Annular support:
 This subclass is indented under subclass 428.  Subject matter wherein the outer surface of the bearing support structure is designed to be held in, or on a circular element.
(1) Note. The bearing may be supported within a pipe casing.
  
[List of Patents for class 384 subclass 442]    442Single direction:
 This subclass is indented under subclass 428.  Subject matter wherein the bearing is supported by or supported on supporting structure which generally extends away from a supporting surface in one direction such that the bearing is supported from only one side.
(1) Note. Nonadjustable shaft hangers are classified here.

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248Supports,   subclasses 49+ for pipe and cable supports, especially subclasses 58+ for the suspended type. Also subclasses 200+ for brackets, per se.
  
[List of Patents for class 384 subclass 443]    443From above:
 This subclass is indented under subclass 442.  Subject matter wherein the supporting surface is located above the bearing.
  
[List of Patents for class 384 subclass 444]    444From below:
 This subclass is indented under subclass 442.  Subject matter wherein the supporting surface is located below the bearing.
  
[List of Patents for class 384 subclass 445]    445Antifriction bearing:
 This subclass is indented under subclass 91.  Subject matter wherein the friction is in the nature of rolling friction, as in a ball or roller bearing.
(1) Note. Bearing assemblies and identifiable elements of bearing are in this and indented subclasses.
(2) Note. A bearing assembly is those elements necessary for the operation of the bearing, that is friction reducing function.
(3) Note. Antifriction bearing subcomponents are classified here if they are disclosed, e.g., whether the bearing subcomponent is for a plain or antifriction bearing, then the bearing subcomponent is classified above under plain bearings.

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92+,for an antifriction bearing with conventional roller drill bit structure.
126+,for an antifriction bearing combined with a plain bearing.
  
[List of Patents for class 384 subclass 446]    446Nonbearing magnetic feature:
 This subclass is indented under subclass 445.  Subject matter wherein the magnetic feature is other than a magnetic support that is a magnetic bearing feature.
(1) Note. A magnetic bearing is defined as where lines of magnetic force sustain the weight of a rotating body against the force of gravity.

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310Electrical Generator or Motor Structure,   subclass 90.5 for a magnetic bearing.
  
[List of Patents for class 384 subclass 447]    447Elliptical eccentric, alternating roller, or mass ball features; compensating for nonthermal deformation; centrifugal preload:
 This subclass is indented under subclass 445.  Subject matter wherein the bearing or bearing support structure includes (a) elliptical features or (b) features wherein two axes are offset or (c) where rollers alternate their orientations; or (d) where the bearing comprises a loose mass of balls; or (e) where means are provided for compensating for nonthermal deformation, e.g.; deformation due to weight or other force of (f) including centrifugal preloading means.
  
[List of Patents for class 384 subclass 448]    448Sensor or inspection features; liquid metal or shipping protection features; bearing member integral with seal:
 This subclass is indented under subclass 445.  Subject matter wherein the bearing or bearing support structure includes (a) means for sensing or visually inspecting bearing conditions; or (b) where a liquid metal such as mercury or gallium is employed; or (c) where means are provided for protection of the bearing during shipping or initial operation; or (d) where a race, cage, or rolling element is in unitary form with a seal.
(1) Note. "Unitary" means in one piece.
  
[List of Patents for class 384 subclass 449]    449Outer race integral with wheel:
 This subclass is indented under subclass 445.  Devices wherein an outer race is a wheel.

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543+,for a fixed shaft and rotating outer element.
  
[List of Patents for class 384 subclass 450]    450Skew prevention; formular relationship:
 This subclass is indented under subclass 445.  Subject matter wherein (a) means are provided to avoid undesired roller skew; or (b) wherein a specified formula in mathematical symbols relates different bearing elements.
(1) Note. Skew angle is defined as the angle between the axis of rotation of the rolling element (roller and a plane normal to the path or relative motion of the raceways confronting the rolling element.
  
[List of Patents for class 384 subclass 451]    451Recirculating or nonannular path:
 This subclass is indented under subclass 445.  Subject matter wherein antifriction elements recirculated in a closed path or where the path is otherwise nonannular, e.g., spiral.

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43+,for linear recirculating bearings.
  
[List of Patents for class 384 subclass 452]    452Radial bearing with separate thrust bearing; radial ball-thrust roller:
 This subclass is indented under subclass 445.  Subject matter comprising rolling elements some of which take mainly radial load and some of which take mainly thrust load.
(1) Note. Where a single element takes both type of load, the patent is classified according to the load sustaining in the greater proportion. If this is not clear then the presumption is that the greater load is in the radial direction.
(2) Note. Bearings where there is a ball taking radial load and a roller taking axial load specifically are classified in this subclass.

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494,for a ball bearing and roller bearing boll for radial load.
  
[List of Patents for class 384 subclass 453]    453Radial ball-thrust ball:
 This subclass is indented under subclass 452.  Subject matter wherein a ball takes radial load and another ball takes axial load.
  
[List of Patents for class 384 subclass 454]    454Radial roller-thrust ball:
 This subclass is indented under subclass 452.  Subject matter wherein a roller takes radial load and a ball takes thrust load.
  
[List of Patents for class 384 subclass 455]    455Radial roller-thrust roller:
 This subclass is indented under subclass 452.  Subject matter wherein a roller takes radial load and another roller takes thrust load.
  
[List of Patents for class 384 subclass 456]    456Radial bearing:
 This subclass is indented under subclass 445.  Subject matter designed for loads imposed mainly normal to the axis of rotation.

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114+,for fluid type radial bearings.
  
[List of Patents for class 384 subclass 457]    457For crankshaft:
 This subclass is indented under subclass 456.  Subject matter wherein the bearing is for supporting a shaft bent at right angles with respect to an engine or is carried on a portion of a shaft bent at right angles.

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429+,for plain rotary bearing for crankshaft.

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74Machine Element or Mechanism,   subclasses 469+ for control lever and linkage systems and subclasses 606+ for casings.
  
[List of Patents for class 384 subclass 458]    458For pedal crank:
 This subclass is indented under subclass 457.  Subject matter wherein the bearing is for supporting an arm bent at a right angle and designed for a foot pedal to be attached to one end of the arm.

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431,for plain rotary bearings for pedal crankshafts.

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74Machine Element or Mechanism,   subclasses 594.1+ for cranks and pedals with additional elements.
  
[List of Patents for class 384 subclass 459]    459Railway car journal:
 This subclass is indented under subclass 456.  Subject matter wherein the bearing is particularly adapted for railway car journal boxes.

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79+,for car-journal lubricators.

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259Railway Wheels and Axles,   appropriate subclasses for car wheel and axle construction and wheel-attaching devices.
  
[List of Patents for class 384 subclass 460]    460Disk plow:
 This subclass is indented under subclass 456.  Subject matter having means for supporting the bearing which receives a hub or rotary shaft of a plow or colter disk.

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157,for a plain rotary bearing for a disk plow type element.
  
[List of Patents for class 384 subclass 461]    461Concentric:
 This subclass is indented under subclass 456.  Subject matter comprising a plurality of radially spaced rolling elements in concentric relation.
(1) Note. "Concentric" means having the same point as the center of a circle or a sphere, but for this subclass it will suffice if the radially spaced rolling elements overlap axially.

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512,for plural axially spaced balls with an integral race and the balls on the same side of the race.
513+,for plural axially spaced balls on opposite sides of a race.
  
[List of Patents for class 384 subclass 462]    462Lubricating:
 This subclass is indented under subclass 456.  Subject matter wherein an antifriction bearing is combined with a lubricating means and the antifriction bearing is modified to cooperate with the lubricating means.

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322,for lubricating means for a plain bearing and see search notes.
606,for antifriction thrust bearing lubricating

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184Lubrication,   for lubricating means not part of a bearing.
  
[List of Patents for class 384 subclass 463]    463Solid lubricant feature:
 This subclass is indented under subclass 462.  Subject matter wherein a lubricant is in a firm state when used.
  
[List of Patents for class 384 subclass 464]    464Dipping, surface treatment or member versus lubricant density:
 This subclass is indented under subclass 462.  Subject matter wherein (a) the bearing is sometimes immersed in lubricant and sometimes not, (b) where a bearing surface is treated for lubricating, e.g., embedded or coated or (c) where the density of the rolling element is related to the lubricant density.
  
[List of Patents for class 384 subclass 465]    465Centrifugal feature:
 This subclass is indented under subclass 462.  Subject matter wherein lubricant is impelled by specified centrifugal force or a slinger.

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168,for centrifugal feed of a lubricant to a railway car bearing.
  
[List of Patents for class 384 subclass 466]    466Jet, baffle or value:
 This subclass is indented under subclass 462.  Subject matter having lubricant jet means, a specified lubricant baffle or a lubricant valve.
  
[List of Patents for class 384 subclass 467]    467Cooling by lubricant:
 This subclass is indented under subclass 462.  Subject matter wherein the lubricant also lowers the temperature of the bearing to keep the temperature of the bearing from getting too high.

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313,for cooling by lubricant of a plain bearing.
476,for other types of cooling of the bearing.
900,for cooling or heating not designated in the regular schedule.
  
[List of Patents for class 384 subclass 468]    468Oil mist feature:
 This subclass is indented under subclass 462.  Subject matter including means for producing an oil mist.
  
[List of Patents for class 384 subclass 469]    469Porous or wick structure:
 This subclass is indented under subclass 462.  Subject matter wherein the lubricant can be retained in pores of a material or retained in a wick type material.
  
[List of Patents for class 384 subclass 470]    470Cage structure:
 This subclass is indented under subclass 462.  Subject matter wherein lubricating is facilitated by specified cage structure.
  
[List of Patents for class 384 subclass 471]    471With pressure or suction means:
 This subclass is indented under subclass 462.  Subject matter including specified means to established pressure or suction so as to move lubricant.

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465,if the means operates by centrifugal force.
472,for an impeller without specified structure for creating pressure or suction.
  
[List of Patents for class 384 subclass 472]    472Impeller:
 This subclass is indented under subclass 462.  Subject matter wherein the bearing, per se, includes structure for impelling lubricant.

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465,for a centrifugal impeller.
471,for reciting the creation of pressure or suction.
  
[List of Patents for class 384 subclass 473]    473Reservoir, filter or lubrication circuit structure:
 This subclass is indented under subclass 462.  Subject matter including specified reservoir, filter, or lubricant circuit structure.
  
[List of Patents for class 384 subclass 474]    474Lubrication port:
 This subclass is indented under subclass 462.  Subject matter including a specified lubrication port.
  
[List of Patents for class 384 subclass 475]    475In race:
 This subclass is indented under subclass 474.  Subject matter wherein the port is in a race.
  
[List of Patents for class 384 subclass 476]    476With cooling, heating or insulating:
 This subclass is indented under subclass 456.  Subject matter including means to control the temperature of the bearing, e.g., raise or lower the temperature, or shield the bearing from heat, cold or electrical charge.

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317,for cooling a plain bearing.
467,for cooling an antifriction bearing by lubricant.
900,for cooling or heating not designated in the regular schedule.
  
[List of Patents for class 384 subclass 477]    477With specified seal:
 This subclass is indented under subclass 456.  Subject matter including means for preventing matter from entering into, passing through, or escaping from the bearing.
(1) Note. The bearing can be in a support means and the seal acting at the juncture of adjacent elements.
(2) Note. A broadly recited seal, e.g., bearing seal, etc., which recites no structure is classified on the basis of the bearing structure, rather than here.

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607,for antifriction thrust bearing seal.

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100Presses,   subclass 175 for a rotary press having a guard for the roll bearing.
277Seal for a Joint or Juncture,   for a generic sealing means or process, subclasses 345+ for a seal between relatively movable parts (i.e., a dynamic seal).
  
[List of Patents for class 384 subclass 478]    478Centrifugal loading or slinging; fluid seal:
 This subclass is indented under subclass 477.  Subject matter wherein (a) the seal is loaded by centrifugal force generated by the seal itself; or (b) wherein a sealing gas or liquid is itself the barrier to fluid or particle passage.
  
[List of Patents for class 384 subclass 479]    479Pressure establishing or loading:
 This subclass is indented under subclass 477.  Subject matter wherein (a) means are provided to create a pressure condition within the sealing assembly, or (b) wherein means are provided whereby the seal is loaded responsive to pressure.
  
[List of Patents for class 384 subclass 480]    480Labyrinth:
 This subclass is indented under subclass 477.  Subject matter wherein a seal comprises a succession of baffles which define a slight clearance with each other or with an additional member, providing a series of throttling zones to impede the passage of fluid or particles.

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144,for a labyrinth seal with a plain.
478,for a fluid seal.
  
[List of Patents for class 384 subclass 481]    481Relatively rotatable radially contacting:
 This subclass is indented under subclass 477.  Subject matter wherein the seal comprises relatively rotatable elements presenting complementary sealing surfaces normal to or at a nonzero angle to the axis of rotation.
(1) Note. These are sometimes called "face seals".

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139+,for a relatively rotatable radially contacting seal with a plain bearing.
  
[List of Patents for class 384 subclass 482]    482Resilient sliding surface material:
 This subclass is indented under subclass 481.  Subject matter wherein one of the sealing surfaces comprises a resilient material.
  
[List of Patents for class 384 subclass 483]    483Radially contained packing with axially acting follower:
 This subclass is indented under subclass 477.  Subject matter wherein the sealing assembly comprises a chamber and an element coaxial therewith, a packing within the chamber and a follower exerting an axial thrust on the packings and biasing it radially into sealing engagement with the chamber and coaxial member.

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149,for a plain bearing with a radially contained seal with axially acting follower.
  
[List of Patents for class 384 subclass 484]    484Lip seal:
 This subclass is indented under subclass 474.  Subject matter wherein the seal comprise a resilient element extending radially and resiliently contacting a relatively rotating surface parallel to the axis of rotation, via an annular surface thin in comparison to the rest of the resilient element and axially displaced form the main portion of the element, at least in operation.
  
[List of Patents for class 384 subclass 485]    485Radially outward lip:
 This subclass is indented under subclass 484.  Subject matter where the lip seal extends radially outwardly from the axis of rotation.
  
[List of Patents for class 384 subclass 486]    486Plural lips:
 This subclass is indented under subclass 484.  Subject matter wherein there is more than one lip in a single seal.
(1) Note. A plurality of lip seals is classified on the basis of individual seal structure.
  
[List of Patents for class 384 subclass 487]    487Radially opening U-shaped retainer:
 This subclass is indented under subclass 477.  Subject matter wherein the seal includes a retainer U-shaped in cross-section and opening in a radial direction, with a seal element located in the retainer and extending radially beyond it to contact a concentric relatively rotating surface.
  
[List of Patents for class 384 subclass 488]    488Flange small clearance:
 This subclass is indented under subclass 477.  Subject matter wherein the seal comprises a radially extending annular flange approaching but not contacting a relatively rotating member so as to substantially but not completely close an annular opening.

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480,for plural flanged seals.
  
[List of Patents for class 384 subclass 489]    489O-ring or end cap seal:
 This subclass is indented under subclass 477.  Subject matter wherein the seal (a) is a resilient)-ring or (b) is an annular disc sealing off one entire end of a bearing, from the outer race to the axis of rotation.
(1) Note. An end cap seal may comprise a small venting hole.

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152,for a plain bearing with an O-ring seal.
  
[List of Patents for class 384 subclass 490]    490Ball bearing:
 This subclass is indented under subclass 456.  Subject matter wherein the rolling friction is a spherical element.
(1) Note. This and indented subclasses includes bearing assembles or specified bearing components.
(2) Note. A spherical element has every part of its bearing surface equally distant form the center.

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609,for a thrust ball bearing.
  
[List of Patents for class 384 subclass 491]    491Ball structure:
 This subclass is indented under subclass 490.  Subject matter wherein structure other than sphericity, e.g.m hollowness, holes, or minor appendages, of a substantially spherical ball, is specified.
(1) Note. A ball surface does not have be continuous to be placed here but all surface contact areas must be an equal distance from the ball center.

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565,for roller structure which may have a curved surface but all surface contact area are not an equal distance from the roller center.
  
[List of Patents for class 384 subclass 492]    492Ball or race composition or material:
 This subclass is indented under subclass 490.  Subject matter wherein the composition, e.g., density or porosity; or material of a ball or race is specified.

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907,Crosss-Reference Art Collection for bearing material not provided in the regular schedule.
  
[List of Patents for class 384 subclass 493]    493Temperature compensation:
 This subclass is indented under subclass 490.  Subject matter including means for compensating for changes brought about by a change in temperature.

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557,for a roller bearing with temperature compensation.
605,for a thrust bearing with temperature compensation.
905,for temperature compensation, not otherwise designated in the regular schedule.
  
[List of Patents for class 384 subclass 494]    494Ball and roller bearings:
 This subclass is indented under subclass 490.  Subject matter including a roller bearing.

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452,for plural bearings one of which is a thrust bearing.
  
[List of Patents for class 384 subclass 495]    495Self-aligning:
 This subclass is indented under subclass 490.  Subject matter wherein the bearing is automatically adjustable to compensate for flexure, pivoting or axial displacement of a shaft.

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192+,for self-aligning of a plain bearing.
558,for self-aligning of a roller bearing.
612,for self-aligning thrust ball bearing.
  
[List of Patents for class 384 subclass 496]    496Ball to larger spherical surface:
 This subclass is indented under subclass 495.  Subject matter wherein the alignment is effectuated by means of interacting of a ball with a larger spherical surface.
  
[List of Patents for class 384 subclass 497]    497Radially outer larger spherical surface:
 This subclass is indented under subclass 496.  Subject matter wherein the larger spherical surface is located radially outside the ball.
  
[List of Patents for class 384 subclass 498]    498Conforming spherical surfaces:
 This subclass is indented under subclass 495.  Subject matter wherein alignment is effectuated by means of the interaction of mating concave and convex spherical surfaces of substantially the same radius of curvature.
  
[List of Patents for class 384 subclass 499]    499Split race:
 This subclass is indented under subclass 490.  Subject matter wherein a race is split circumferentially, so as to produce plural complete rings or split transversely, so as to produce one incomplete annulus (split ring).
  
[List of Patents for class 384 subclass 500]    500With race adjustment means:
 This subclass is indented under subclass 499.  Subject matter including means to move the position of a race.
  
[List of Patents for class 384 subclass 501]    501Double split:
 This subclass is indented under subclass 499.  Subject matter wherein both the inner and outer races are circumferentially split.
  
[List of Patents for class 384 subclass 502]    502Split ring:
 This subclass is indented under subclass 499.  Subject matter wherein the race is split transversely, so as to produce a break in the circumference of the annulus.
  
[List of Patents for class 384 subclass 503]    503Fractured split:
 This subclass is indented under subclass 502.  Subject matter wherein the split is by means of a fracture.
  
[List of Patents for class 384 subclass 504]    504Plural rows balls:
 This subclass is indented under subclass 499.  Subject matter comprising plural axially spaced rows of balls.

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512,for plural axially spaced balls with integral race.
  
[List of Patents for class 384 subclass 505]    505One race only split:
 This subclass is indented under subclass 499.  Subject matter wherein only one of the two ball races is a split race.

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500,for split race with adjustment means.
504,for plural rows of balls with a split race.
  
[List of Patents for class 384 subclass 506]    506Inner race split:
 This subclass is indented under subclass 505.  Subject matter wherein it is the radially innermost race that is split.

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500,for split race with adjustment means.
  
[List of Patents for class 384 subclass 507]    507Slot for ball insertion:
 This subclass is indented under subclass 490.  Subject matter wherein a slot is provided for inserting a ball.

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511,for an annular opening in a race for ball insertion.
  
[List of Patents for class 384 subclass 508]    508With means for blocking slot:
 This subclass is indented under subclass 507.  Subject matter including structure designed to block the slot under operating conditions.
  
[List of Patents for class 384 subclass 509]    509Blocking by cage:
 This subclass is indented under subclass 508.  Subject matter wherein the blocking structure is a ball cage.
  
[List of Patents for class 384 subclass 510]    510Specified means facilitating assembly or disassembly:
 This subclass is indented under subclass 490.  Subject matter wherein structure is designed to particularly facilitate assembly or disassembly of the bearing.

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537,for assembling a bearing in a support, mounting means, etc.

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29Metal Working,   subclasses 898+ for the method of assembling bearing structure and subclasses 724+ and 898+ for a machine or apparatus for assembling bearing structure.
  
[List of Patents for class 384 subclass 511]    511Annular opening for ball insertion:
 This subclass is indented under subclass 510.  Subject matter wherein the facilitating means includes an opening, around the entire circumference of a race, provided for ball insertion.

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507,for a slot in a race for ball insertion.
  
[List of Patents for class 384 subclass 512]    512Plural axially spaced balls with integral race:
 This subclass is indented under subclass 490.  Subject matter comprising plural axially spaced rows of balls rolling on an integral race on the same radial surface of that race.

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461,for plural axially overlapping rolling elements.
504,for plural rows of balls with a split race.
513+,for plural axially spaced rows of balls rolling on an integral race wherein the balls are on opposite sides of the integral race.
  
[List of Patents for class 384 subclass 513]    513Specified bearing race structure:
 This subclass is indented under subclass 490.  Subject matter having a particularly described race.
(1) Note. A broadly recited race: e.g., race, bearing race; etc., which recites no structure or shape is placed where it would be otherwise classifiable.

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517,for an axially biased race.
  
[List of Patents for class 384 subclass 514]    514Strictly conical contact surface:
 This subclass is indented under subclass 513.  Subject matter wherein the race comprises a strictly, i.e., not rounded, conical surface on which the ball rolls.
  
[List of Patents for class 384 subclass 515]    515Including radial race flange:
 This subclass is indented under subclass 513.  Subject matter wherein the race comprises an integral radial flange.
  
[List of Patents for class 384 subclass 516]    516Ball groove surface detail:
 This subclass is indented under subclass 513.  Subject matter wherein the race structure comprises specified detail of the ball rolling groove surface, e.g., the slope of the groove, on which the ball rolls.
  
[List of Patents for class 384 subclass 517]    517Axially biased race:
 This subclass is indented under subclass 490.  Subject matter where a race is subjected to continual axial resilient force.
  
[List of Patents for class 384 subclass 518]    518Coil spring
 This subclass is indented under subclass 517.  Subject matter wherein the force is supplied by means comprising a coil spring.
  
[List of Patents for class 384 subclass 519]    519Adjustment means:
 This subclass is indented under subclass 490.  Subject matter having means to move the position of the bearing.

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447,for eccentric features some of which may function as adjustment means.
  
[List of Patents for class 384 subclass 520]    520Discrete spacing member:
 This subclass is indented under subclass 490.  Subject matter wherein balls are maintained a determined distance apart in a race by a discrete element that is not connected from one ball to another.

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524,for a discrete spacing element connected to cage structure.
  
[List of Patents for class 384 subclass 521]    521Ball spacer:
 This subclass is indented under subclass 520.  Subject matter wherein the spacing element is spherical.
  
[List of Patents for class 384 subclass 522]    522Roller spacer:
 This subclass is indented under subclass 520.  Subject matter wherein the spacing element is a roller.
  
[List of Patents for class 384 subclass 523]    523Cage structure:
 This subclass is indented under subclass 490.  Subject matter having means for spacing balls in a race.
  
[List of Patents for class 384 subclass 524]    524Including antifriction members:
 This subclass is indented under subclass 523.  Subject matter wherein the cage structure includes balls or rollers that do not bear radial force.

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521,and 522, for discrete antifriction elements as spacers.
  
[List of Patents for class 384 subclass 525]    525Wire cage:
 This subclass is indented under subclass 523.  Subject matter wherein the cage is formed from wire.
  
[List of Patents for class 384 subclass 526]    526Resilient feature:
 This subclass is indented under subclass 523.  Subject matter wherein the cage comprises resilient structure.
  
[List of Patents for class 384 subclass 527]    527Material, composition or laminate:
 This subclass is indented under subclass 523.  Subject matter wherein the material or composition of the cage is specified, or it is formed as a laminate.
  
[List of Patents for class 384 subclass 528]    528Fully circular aperture for ball:
 This subclass is indented under subclass 523.  Subject matter wherein the cage comprises a fully circular aperture for receiving each ball.

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533,for a noncircular or nonconforming pocket for a ball.
  
[List of Patents for class 384 subclass 529]    529Two circular apertures per ball:
 This subclass is indented under subclass 5228.  Subject matter wherein there are two apertures for receiving each ball.
  
[List of Patents for class 384 subclass 530]    530Plural elements joined to form an aperture:
 This subclass is indented under subclass 528.  Subject matter wherein the aperture is formed by plural elements connected together.
  
[List of Patents for class 384 subclass 531]    531U- or C-shaped slot:
 This subclass is indented under subclass 523.  Subject matter wherein the race has a substantially U - or C - shaped opening for holding a ball.
  
[List of Patents for class 384 subclass 532]    532Unitary uniform strip:
 This subclass is indented under subclass 531.  Subject matter wherein the cage is formed from a single strip of material of uniform thickness.

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534,for a unitary strip with other than U- or C-shaped slots.
  
[List of Patents for class 384 subclass 533]    533Entirely noncircular or nonconforming pocket:
 This subclass is indented under subclass 523.  Subject matter wherein a ball-holding pocket either has no circular portions or has a circular portion but of a radius of curvature that does not conform with that of the ball.

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528,for a fully circular aperture for a ball.
  
[List of Patents for class 384 subclass 534]    534Unitary member:
 This subclass is indented under subclass 523.  Subject matter wherein the cage is formed from a unitary element of material.

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528+,for a fully circular aperture for a ball which may be a unitary strip.
532,for U - or C - shaped slots in a unitary strip.
  
[List of Patents for class 384 subclass 535]    535Resilient support member:
 This subclass is indented under subclass 490.  Subject matter having resilient means for supporting the bearing.

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581,for a resilient support member for a roller bearing.
  
[List of Patents for class 384 subclass 536]    536Elastomer or plastic:
 This subclass is indented under subclass 535.  Subject matter wherein the resilient means comprises an elastomer or plastic.
  
[List of Patents for class 384 subclass 537]    537Assembling means:
 This subclass is indented under subclass 490.  Subject matter wherein a bearing assembly and/or means to support the bearing comprise structure for allowing assembly.

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410,for assembling of a ball bearing.
  
[List of Patents for class 384 subclass 538]    538Wedge means:
 This subclass is indented under subclass 537.  Subject matter wherein the means comprises a tapered element for a wedging function.
  
[List of Patents for class 384 subclass 539]    539Snap means:
 This subclass is indented under subclass 537.  Subject matter wherein the means comprises a resilient structure that deforms during assembly.
  
[List of Patents for class 384 subclass 540]    540Threaded sleeve:
 This subclass is indented under subclass 537.  Subject matter wherein the means comprises a hollow tube or cylinder with threads on the inside or outside, e.g., a nut.
  
[List of Patents for class 384 subclass 541]    541Radial set screw:
 This subclass is indented under subclass 537.  Subject matter wherein the means comprises a threaded rod used for locking adjustable parts in position and the rod moves in a radial direction.
  
[List of Patents for class 384 subclass 542]    542Bolt:
 This subclass is indented under subclass 537.  Subject matter wherein the means comprises a rod and the end usually has a head.

SEE OR SEARCH THIS CLASS, SUBCLASS:

538,for wedging means with a bolt for securing the bearing.
541,for a radial set screw.
  
[List of Patents for class 384 subclass 543]    543Fixed shaft and rotating outer member:
 This subclass is indented under subclass 490.  Subject matter having a stationary axle and a radially outer element, rotatably supported thereon.

SEE OR SEARCH THIS CLASS, SUBCLASS:

416,for a rotary member with a plain bearing.
  
[List of Patents for class 384 subclass 544]    544For hub:
 This subclass is indented under subclass 543.  Subject matter wherein the hub is for a bicycle wheel.
  
[List of Patents for class 384 subclass 545]    545For bicycle hub:
 This subclass is indented under subclass 544.  Subject matter wherein the hub is for a bicycle wheel.
  
[List of Patents for class 384 subclass 546]    546Outermost member cylindrical:
 This subclass is indented under subclass 543.  Subject matter wherein the radially outer element has only a cylindrical periphery.
(1) Note. The cylindrical member turns about a bearing assembly.
  
[List of Patents for class 384 subclass 547]    547Outermost member grooved:
 This subclass is indented under subclass 543.  Subject matter wherein the radially outer element has only a grooved periphery.
(1) Note. The grooved member turns about a bearing assembly.
  
[List of Patents for class 384 subclass 548]    548Roller bearing:
 This subclass is indented under subclass 456.  Subject matter wherein the rolling friction is from a roller element, e.g., cylindrical, tapered, barrel-shaped, needle-shaped, etc.
(1) Note. See Note to 491 for the definition of a ball bearing.
  
[List of Patents for class 384 subclass 549]    549Fixed supporting roller:
 This subclass is indented under subclass 548.  Subject matter wherein the bearing rotates on its own axis, but does not revolve about the axis of a fixed supporting means, and supports a large cylindrical member, e.g., a drum, for rotation.
(1) Note. When more than a race is claimed classification is with the appropriate class. See the Search Class notes below.

SEE OR SEARCH CLASS:

34Drying and Gas or Vapor Contact With Solids,   subclass 108 for rotary drums or receptacles.
241Solid Material Comminution or Disintegration,   subclass 178 of a roller supported receptacle.
248Supports,   subclass 130 for a rotating receptacle.
  
[List of Patents for class 384 subclass 550]    550Toothed:
 This subclass is indented under subclass 548.  Subject matter wherein the roller comprises teeth which mesh with other teeth in a race or other adjacent roller.

SEE OR SEARCH THIS CLASS, SUBCLASS:

598,for a toothed thrust roller bearing.
  
[List of Patents for class 384 subclass 551]    551Discrete circumferential or axial spacer:
 This subclass is indented under subclass 548.  Subject matter wherein (a) rollers are maintained a determined circumferential distance apart in there ace by discrete elements that are not connected from one ball to another; or (b) wherein discrete elements axially spaced individual rollers.
  
[List of Patents for class 384 subclass 552]    552Spaced by balls:
 This subclass is indented under subclass 551.  Subject matter wherein load-bearing roller are located position by nonload-bearing balls.
  
[List of Patents for class 384 subclass 553]    553Spaced by rollers:
 This subclass is indented under subclass 551.  Subject matter wherein load-bearing roller are located position by nonload-bearing rollers.
  
[List of Patents for class 384 subclass 554]    554With associated rings:
 This subclass is indented under subclass 553.  Subject matter wherein the nonload0bearing rollers are related in position to one another by a plurality of rings.
  
[List of Patents for class 384 subclass 555]    555Mating grooves and projections:
 This subclass is indented under subclass 553.  Subject matter wherein annular grooves or projections on the load-bearing roller skate with annular projections or grooves on the nonload-bearing spacing rollers.
  
[List of Patents for class 384 subclass 556]    556Hydraulic axial jacking:
 This subclass is indented under subclass 548.  Subject matter wherein fluid pressure means is employed to initially position of "jack" a bearing assembly element.
(1) Note. Where the hydraulic force remains in effect, i.e., for resilient support, see Class 384, subclass 99.
  
[List of Patents for class 384 subclass 557]    557Temperature compensation:
 This subclass is indented under subclass 548.  Subject matter including means for compensating for change brought about by a change in temperature.

SEE OR SEARCH THIS CLASS, SUBCLASS:

493,for a ball bearing with temperature compensation.
605,for a thrust bearing with temperature compensation.
905,for temperature compensation not designated in the regular schedule.
  
[List of Patents for class 384 subclass 558]    558Self-aligning:
 This subclass is indented under subclass 548.  Subject matter wherein the bearing is automatically adjustable to compensate for flexure, pivoting or axial displacement of a shaft.

SEE OR SEARCH THIS CLASS, SUBCLASS:

193+,for self-aligning of a plain bearing.
620,for self-aligning of a thrust roller bearing.
  
[List of Patents for class 384 subclass 559]    559Means facilitating assembly or disassembly:
 This subclass is indented under subclass 548.  Subject matter wherein structure is so designed to particularly aid in assembling or disassembling a bearing assembly.

SEE OR SEARCH CLASS:

29Metal Working,   subclasses 898+ and 724+ for machines, apparatus and methods for effecting the assembly.
  
[List of Patents for class 384 subclass 560]    560By cage or race structure:
 This subclass is indented under subclass 559.  Subject matter wherein ring and associated receiving groove are used to facilitate assembly or disassembly.
  
[List of Patents for class 384 subclass 561]    561By groove and ring:
 This subclass is indented under subclass 559.  Subject matter wherein a ring and associated receiving groove are used to facilitate assembly or disassembly.
  
[List of Patents for class 384 subclass 562]    562By threaded member:
 This subclass is indented under subclass 559.  Subject matter wherein a threaded element, e.g., a nut and/or bolt, is used in assembly or disassembly.
  
[List of Patents for class 384 subclass 563]    563Axially biased race or roller:
 This subclass is indented under subclass 548.  Subject matter having means for resiliently urging a bearing race or roller in an axial direction.
(1) Note. This is often referred to as "preloading".
  
[List of Patents for class 384 subclass 564]    564Race end structure:
 This subclass is indented under subclass 548.  Subject matter wherein a race has either integral flange or separate, e.g., and associated ring, axial end structure.
  
[List of Patents for class 384 subclass 565]    565Roller structure:
 This subclass is indented under subclass 548.  Subject matter comprising specified detail of the roller.

SEE OR SEARCH CLASS:

492Roll or Roller,   for a roll, per se, not elsewhere provided for and see the search notes thereunder.
  
[List of Patents for class 384 subclass 566]    566Helical feature:
 This subclass is indented under subclass 565.  Subject matter wherein the roller comprises helical structure.
  
[List of Patents for class 384 subclass 567]    567Hollow:
 This subclass is indented under subclass 565.  Subject matter wherein the roller has bore passing entirely through it in the roller"s axial direction.
  
[List of Patents for class 384 subclass 568]    568Curved roller:
 This subclass is indented under subclass 565.  Subject matter wherein the roller is entirely nonlinear in cross-section, excepting only portions of axial ends.
  
[List of Patents for class 384 subclass 569]    569Race, liner or sleeve:
 This subclass is indented under subclass 548.  Subject matter having an element that has specified structure in the bearing assembly of the roller bearing contact surface, of a liner, or of a sleeve.
  
[List of Patents for class 384 subclass 570]    570Split ring:
 This subclass is indented under subclass 569.  Subject matter wherein the element is split transversely, so as to produce a break in the circumference of the annulus.
  
[List of Patents for class 384 subclass 571]    571Tapered race:
 This subclass is indented under subclass 569.  Subject matter wherein a race is tapered in cross-section.
  
[List of Patents for class 384 subclass 572]    572Cage structure:
 This subclass is indented under subclass 548.  Subject matter having specified structure of an annular roller spacing element.
  
[List of Patents for class 384 subclass 573]    573Wire, filament, segmented or surface treated:
 This subclass is indented under subclass 572.  Subject matter wherein the cage is composed (a) of wire, (b) of filamentous material, (c) of separate annular or circumferential segments; or (d) wherein the cage surface is specially treated or coated.
  
[List of Patents for class 384 subclass 574]    574Projecting into or through roller:
 This subclass is indented under subclass 572.  Subject matter wherein the cage includes a portion entering into or through a recess or bore in the axial end of a roller.
  
[List of Patents for class 384 subclass 575]    575Uniform sheet metal:
 This subclass is indented under subclass 572.  Subject matter wherein the cage is fabricated of sheet metal of uniform thickness.
  
[List of Patents for class 384 subclass 576]    576Nonmetallic:
 This subclass is indented under subclass 572.  Subject matter wherein the cage comprises nonmetallic material.
  
[List of Patents for class 384 subclass 577]    577Split ring or open slot:
 This subclass is indented under subclass 572.  Subject matter wherein the cage annulus has a split in it circumference or roller retaining cavities in the cage are open on one side.
  
[List of Patents for class 384 subclass 578]    578Nonunitary:
 This subclass is indented under subclass 572.  Subject matter wherein the cage is composed of plural elements.
  
[List of Patents for class 384 subclass 579]    579Bolted, welded or with spring:
 This subclass is indented under subclass 578.  Subject matter wherein the elements of the cage are bolted or welded together; or the cage includes a specified spring.
  
[List of Patents for class 384 subclass 580]    580Lip on transverse bar:
 This subclass is indented under subclass 572.  Subject matter wherein a connecting piece of the cage, parallel to the axis of rotation of a bearing supported element, has a lip to help retain the roller.
  
[List of Patents for class 384 subclass 581]    581Resilient support member:
 This subclass is indented under subclass 548.  Subject matter which has a resilient supporting means.
  
[List of Patents for class 384 subclass 582]    582Elastomer or plastic:
 This subclass is indented under subclass 581.  Subject matter wherein the resilient means comprises an elastomer or plastic.
  
[List of Patents for class 384 subclass 583]    583With adjustment means:
 This subclass is indented under subclass 548.  Subject matter including means to move the bearing assembly, or part thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

447,for eccentric features, some of which may function as adjustment means.
563,for an axially biased race.
  
[List of Patents for class 384 subclass 584]    584Assembling means:
 This subclass is indented under subclass 548.  Subject matter wherein a bearing assembly and/or means to support the bearing, comprise structure for allowing assembly.
  
[List of Patents for class 384 subclass 585]    585Race fastening means:
 This subclass is indented under subclass 584.  Subject matter having means to secure a roller bearing race in its appropriate location.

SEE OR SEARCH CLASS:

403Joints and Connection,   appropriate subclasses for a joint between a rotary shaft and a device mounted thereon.
  
[List of Patents for class 384 subclass 586]    586Fixed shaft and rotating outer member:
 This subclass is indented under subclass 548.  Subject matter wherein a radially outer element rotates abut a fixed shaft.

SEE OR SEARCH CLASS:

295Railway Wheels and Axles,   subclass 10 for loose tire railway wheels.
305Wheel Substitutes for Land Vehicles,   subclass 7 for a rigid circular track provided with a wheel or roller within the track on a fixed shaft.
492Roll or Roller,   subclasses 16+ for a roll, per se, not elsewhere provided for, in which the outer surface of the roll is rotatable relative to its supporting shaft.
  
[List of Patents for class 384 subclass 587]    587Outermost element cylindrical:
 This subclass is indented under subclass 586.  Subject matter wherein the radially outermost element has only a cylindrical periphery.
  
[List of Patents for class 384 subclass 588]    588Outermost element grooved:
 This subclass is indented under subclass 586.  Subject matter wherein the radially outermost element has a grooved periphery..
  
[List of Patents for class 384 subclass 589]    589For hub:
 This subclass is indented under subclass 586.  Subject matter wherein a rotating outer member comprises structure relating to its hub.
  
[List of Patents for class 384 subclass 590]    590Thrust bearing:
 This subclass is indented under subclass 445.  Subject matter designed for loads imposed mainly in the direction of the axis of rotation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

105,121 and 420+, especially subclasses 420+ for similar type thrust bearings and see the search notes.
  
[List of Patents for class 384 subclass 591]    591Vehicle center:
 This subclass is indented under subclass 590.  Subject matter wherein the bearing transmits radial, axial and moment forces from an upper structure to the base of a vehicle center revolving table, as a bridge, turntable, etc.
  
[List of Patents for class 384 subclass 592]    592Ball:
 This subclass is indented under subclass 591.  Subject matter wherein the bearing is a ball bearing.
  
[List of Patents for class 384 subclass 593]    593Roller:
 This subclass is indented under subclass 591.  Subject matter wherein the bearing is a ball bearing.
  
[List of Patents for class 384 subclass 594]    594Railway truck center bearing:
 This subclass is indented under subclass 590.  Subject matter wherein the bearing is a center bearing for railway cars and is designed to transmit radial, axial and moment forces from a railway truck structure to a base.
  
[List of Patents for class 384 subclass 595]    595Railway truck side bearing:
 This subclass is indented under subclass 590.  Subject matter wherein the bearing is designed to be located between a car-truck bolster and a body bolster on a railway car, upon which bearing load is imposed when the car body tilts from a vertical as when the car is turning.
  
[List of Patents for class 384 subclass 596]    596Ball:
 This subclass is indented under subclass 595.  Subject matter wherein the bearing is a ball bearing.
  
[List of Patents for class 384 subclass 597]    597Roller:
 This subclass is indented under subclass 595.  Subject matter wherein the bearing element is a roller.
  
[List of Patents for class 384 subclass 598]    598Toothed:
 This subclass is indented under subclass 597.  Subject matter wherein the roller comprises teeth which mesh with other teeth in a race or other adjacent roller.

SEE OR SEARCH THIS CLASS, SUBCLASS:

550,for a toothed radial roller bearing.
  
[List of Patents for class 384 subclass 599]    599With self-adjustment means:
 This subclass is indented under subclass 597.  Subject matter including means for automatically moving the bearing assembly or a component thereof.
  
[List of Patents for class 384 subclass 600]    600Assembling means:
 This subclass is indented under subclass 597.  Subject matter having specified means to put together the bearing assembly.
  
[List of Patents for class 384 subclass 601]    601Contaminant elimination; adjustment means:
 This subclass is indented under subclass 597.  Subject matter having either means to eliminate deleterious fluid or solid material from the bearing, or prevent its entry; or to move the bearing assembly or component thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

599,for self-adjustment means for a roller bearing.
  
[List of Patents for class 384 subclass 602]    602Adjustment by shim:
 This subclass is indented under subclass 601.  Subject matter wherein the adjustment means includes a spacing shim.
  
[List of Patents for class 384 subclass 603]    603Spinning spindle:
 This subclass is indented under subclass 590.  Subject matter wherein the bearing is designed to support a spindle, i.e., shaft, for bobbins in a spinning machine.

SEE OR SEARCH THIS CLASS, SUBCLASS:

227+,for a spinning spindle having plan bearings.
  
[List of Patents for class 384 subclass 604]    604Different size rolling elements; spacers; noncircular array:
 This subclass is indented under subclass 590.  Subject matter wherein rolling elements of different sizes are employed within the same set of races; or discrete circumferential spacers are employed between rolling elements; or wherein there is a noncircular array of rolling elements in the same radial plane.
  
[List of Patents for class 384 subclass 605]    605Temperature compensation:
 This subclass is indented under subclass 590.  Subject matter including means for compensating for changes brought about by a change in temperature.

SEE OR SEARCH THIS CLASS, SUBCLASS:

493,for a ball bearing with temperature compensation.
557,for a roller bearing with temperature compensation.
905,for temperature compensation not designated in the regular schedule.
  
[List of Patents for class 384 subclass 606]    606Lubricating:
 This subclass is indented under subclass 590.  Subject matter having means to lubricate the bearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

322+,for lubrication of plain bearings and see search notes.

SEE OR SEARCH CLASS:

123Internal-Combustion Engines,   appropriate subclasses for lubrication means for lubrication of internal-combustion engine parts.
184Lubrication,   appropriate subclasses for lubrication means of general utility.
  
[List of Patents for class 384 subclass 607]    607Seals:
 This subclass is indented under subclass 590.  Subject matter having means for preventing matter from entering into, passing through or escaping from the bearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

130+,for seals for plain bearings.
477,for seals for antifriction radial bearings.

SEE OR SEARCH CLASS:

277Seal for a Joint or Juncture,   for a generic sealing means or process, subclasses 345+ for a seal between relatively movable parts (i.e., a dynamic seal).
  
[List of Patents for class 384 subclass 608]    608Concentric rolling members:
 This subclass is indented under subclass 590.  Subject matter comprising a plurality of rows of antifriction elements in concentric relation.
(1) Note. "Concentric" means about the same center point of a circle or sphere, but for purposes of this subclass it shall suffice if radially spaced rolling elements axially overlap.

SEE OR SEARCH THIS CLASS, SUBCLASS:

613,for plural axially spaced rows at balls.
619,for plural axially spaced roller bearing.
  
[List of Patents for class 384 subclass 609]    609Ball bearing:
 This subclass is indented under subclass 590.  Devices wherein the antifriction element is a ball.

SEE OR SEARCH THIS CLASS, SUBCLASS:

490,for a radial bearing with a ball element.
  
[List of Patents for class 384 subclass 610]    610Single ball:
 This subclass is indented under subclass 609.  Subject matter where only one ball takes the entire thrust load.
  
[List of Patents for class 384 subclass 611]    611Resilient feature:
 This subclass is indented under subclass 609.  Subject matter wherein the bearing assembly has a resilient element.
  
[List of Patents for class 384 subclass 612]    612Self-aligning:
 This subclass is indented under subclass 609.  Subject matter comprising means to align the bearing or bearing assembly automatically.

SEE OR SEARCH THIS CLASS, SUBCLASS:

495,for a self-aligning ball bearing.
  
[List of Patents for class 384 subclass 613]    613Plural rows balls or tandem thrust:
 This subclass is indented under subclass 609.  Subject matter having more than one axially spaced row of balls, which may or may not have means to distribute force among the rows.
(1) Note. The rows of balls are often with a common race.
  
[List of Patents for class 384 subclass 614]    614Cage structure:
 This subclass is indented under subclass 609.  Subject matter having detailed means for spacing balls in a race.
  
[List of Patents for class 384 subclass 615]    615Race structure:
 This subclass is indented under subclass 609.  Subject matter having specified race detail.
  
[List of Patents for class 384 subclass 616]    616Adjustment means:
 This subclass is indented under subclass 609.  Subject matter comprising means to move the bearing assembly or a component thereof.
  
[List of Patents for class 384 subclass 617]    617Assembling means:
 This subclass is indented under subclass 609.  Subject matter having specified means to put together the bearing assembly.
  
[List of Patents for class 384 subclass 618]    618Roller bearing:
 This subclass is indented under subclass 590.  Subject matter wherein the rolling friction is from a roller element, e.g., a cylindrical tapered, barrel-shaped, or needle-shaped element.
(1) Note. See subclass 491 for definition of a ball bearing
  
[List of Patents for class 384 subclass 619]    619Roller structure or orientation; plural axially spaced rows or tandem thrust:
 This subclass is indented under subclass 618.  Subject matter having detailed of a roller element; or the orientation of the rollers is specified; or having two or more axially spaced roller rows which may or may not have means to distribute force among the rows.
  
[List of Patents for class 384 subclass 620]    620Resilient feature; adjustment or self-alignment means; assembling means:
 This subclass is indented under subclass 618.  Subject matter having resilient means for supporting the bearing; or means to move or allow for automatic movement of the bearing or bearing assembly or a component thereof; or specified means to put together the bearing assembly.

SEE OR SEARCH THIS CLASS, SUBCLASS:

558,for a self-aligning roller bearing.
  
[List of Patents for class 384 subclass 621]    621Race and cage structure:
 This subclass is indented under subclass 618.  Subject matter having detailed means for spacing rollers in a race and in addition details of a race.
  
[List of Patents for class 384 subclass 622]    622Race structure:
 This subclass is indented under subclass 618.  Devices having specified race detail.
  
[List of Patents for class 384 subclass 623]    623Cage structure:
 This subclass is indented under subclass 618.  Subject matter having specified means for spacing rollers in a race.
  
[List of Patents for class 384 subclass 624]    624BEARING SAFETY OR SELF-CLEANING MEANS:
 This subclass is indented under the class definition.  Subject matter wherein specified means are provided to protect either a bearing or a human, or to remove containment matter automatically.
  
[List of Patents for class 384 subclass 625]    625BEARING-SURFACE TREATMENT:
 This subclass is indented under the class definition.  Subject matter wherein bearing surface has been specially treated to improve its antifriction or wear-resisting properties.
(1) Note. This subclass includes all special processes for treating bearing surfaces not otherwise provided for in the art.

SEE OR SEARCH CLASS:

29Metal Working,   subclass 89.5 for burning-in, wearing-in and oil burnishing and subclasses 898+ for methods of making bearing.
148Metal Treatment,   appropriate subclasses for processes of significant heat treatment of metal to modify or maintain the internal physical structure (i.e., microstructure, etc.) or chemical property of metal, and appropriate subclasses for processes of reactive coating of metal substrates wherein an external agent combines with the metal substrate to form a coating thereon containing an element from said substrate.
205Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions,   subclasses 80+ for electrolytic coating processes.
216Etching a Substrate: Processes,   for treating a bearing surface including a chemical etching operation.
  
[List of Patents for class 384 subclass 626]    626SHIM FOR BEARING:
 This subclass is indented under the class definition.  Subject matter wherein a piece of material is used to take up wear or adjust parts of a bearing.
  
[List of Patents for class 384 subclass 627]    627MISCELLANEOUS:
 This subclass is indented under the class definition.  Subject matter not provided for above.
  

CROSS-REFERENCE ART COLLECTIONS

[List of Patents for class 384 subclass 900]    900Cooling or heating:
 Apparatus, or fluid to raise, or lower the temperature of a bearing.
  
[List of Patents for class 384 subclass 901]    901Floating bushing:
 This art principally includes rotationally free bushings between an inner and an outer bearing, but also includes axial or radial freedom.
  
[List of Patents for class 384 subclass 902]    902Porous metal member:
 The metal member has pores through which lubricant may pass or in which lubricant can be impregnated.
  
[List of Patents for class 384 subclass 903]    903Retaining ring:
 The ring is for holding bearing parts together.

SEE OR SEARCH THIS CLASS, SUBCLASS:

561,for assembly of a bearing using a ring.
  
[List of Patents for class 384 subclass 904]    904Propeller shaft outer bearing:
 The bearing is where the propeller shaft passes through the hull of a ship or boat.
  
[List of Patents for class 384 subclass 905]    905Temperature compensation:
 The Bearing is designed so that deviation due to temperature will be counteracted, compensated for, etc.
(1) Note. Temperature compensation features provided for in the regular schedule should not be cross-referenced here.

SEE OR SEARCH THIS CLASS, SUBCLASS:

493,for a ball bearing with temperature compensation.
557,for a roller bearing with temperature compensation.
605,for a thrust bearing with temperature compensation.
  
[List of Patents for class 384 subclass 905.1]    905.1Cup-shaped bearing:
 A bearing in the form of a hollow cylinder with a closed end.
  
[List of Patents for class 384 subclass 906]    906Antirotation key:
 The bearing assembly has a nonattaching element preventing rotation of one element relative to another.
  
[List of Patents for class 384 subclass 907]    907Bearing material or solid lubricant:
 Specified bearing material and/or a solid lubricant.
(1) Note. Some bearing materials are referred to in the literature as solid lubricants, and vice versa.
  
[List of Patents for class 384 subclass 907.1]    907.1Jewel, glass, ceramic or carbon:
 A material comprising precious or semiprecious stones, ceramic material, or a form of carbon.
  
[List of Patents for class 384 subclass 908]    908Nylon or polytetrafluorethylene:
 Specified bearing material and/or a solid lubricant.
  
[List of Patents for class 384 subclass 909]    909Plastic:
 This subclass is indented under subclass 907.  Nonmetallic high molecular weight bearing elements not provided for in ... .
  
[List of Patents for class 384 subclass 910]    910Powders:
 The material, usually a solid lubricant, is in powder form.
  
[List of Patents for class 384 subclass 911]    911Including fiber:
 The bearing member includes fiber.
  
[List of Patents for class 384 subclass 912]    912Metallic:
 the bearing member is wholly or predominantly composed of metal.
  
[List of Patents for class 384 subclass 913]    913Metallic compounds:
 A metal in chemical compound with another material, for example, Molybdenum desulfide, not found above.
(1) Note. If the metallic compound is in fused, vitreous, or crystalline form, (e.g., Aluminum Oxide as sapphire), then it would be found in subclass 907.1 above, and not cross-referenced here.
  

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