PATENTS   
Patents > Guidance, Tools, and Manuals >> Classification >>> Class Definition
    Class Numbers & Titles   | Class Numbers Only   | USPC Index   | International   | HELP  
You are viewing a Class definition.

 [Search a list of Patent Appplications for class 470]   CLASS 470,THREADED, HEADED FASTENER, OR WASHER MAKING: PROCESS AND APPARATUS
Click here for a printable version of this file

SECTION I - CLASS DEFINITION

This class provides for processes, machines, devices, and implements which are either:

(a) specialized and limited for manufacturing bolts, rivets, nails, screws, nuts and washers including the formation of internal and external screw-threads, or

(b) capable of manufacturing bolts, rivets, nails, screws, nuts and washers by an operation other than cutting by use of a rotating axially moving tool; or

(c) capable of manufacturing rivets, nails, screws, nuts and washers which may include a step of cutting by use of a rotating axially moving but also includes a step of materially treating bolts, rivets, nails, screws, nuts and washers.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

Class 470 provides for the specialized manufacture or other operations of manufacturing of articles of its class. However other classes provide for similar manufacturing operations, machines, etc. See References to Other Classes, below.

SECTION III - REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:

29, Metal Working,   for machines capable of manufacturing machine screws but additionally capable of forming other similar parts or articles such as binding posts, spoke nipples, etc., particularly subclasses 33+ .
72, Metal Deforming,   for machines and processes for forming articles of this class but wherein the forming operation is limited only to a metal deforming operation. A machine, process, etc., having a deforming step of an article of Class 470 and another operation on the article is properly classifiable in Class 470. See Classes of Article Making and the search note to Class 470 in the Class Definition of Class 72.
82, Turning,   for machines and processes limited to thread cutting operations in which the operation is limited to the Class 82 operation particularly subclasses 110+ , and without any other operation associated with bolt or screw formation. See the note relating to Class 470 in the Search Class notes of the Class Definitions of Class 82.
83, Cutting,   for machines and processes for manufacturing nuts and washers by cold-punching or shearing operations in which the operation is limited to a Class 83 operations and without any other operation associated with nut or washer formation. See the Class 83 Class Definitions.
408, Cutting by Use of Rotating Axially Moving Tool,   machines, process, etc. for drilling, screwing threading, or machining of a screw, bolt or nut wherein the machine, process, etc. is of general utility capable of performing operations on articles other than those of Class 470 in Search Class Notes of the Class Definitions of Class 408.
409, Gear Cutting, Milling, or Planing,   for machines or processes for milling a thread, particularly subclasses 65+ , in which the operation is limited to Class 409 operations and without any other operation associated with bolt or screw formation or in which the machine or process is of general utility capable of performing milling operations on articles other than those of Class 470.
451, Abrading,   for a machine or process limited to thread forming operations by grinding, particularly subclass 48 . If machine or process provides for operations for forming articles of this class in addition to a grinding operation, the patent disclosing same is properly classified in Class 470.
100, Presses,   appropriate subclasses for presses otherwise provided for and particularly the Search Class notes to Class 470 in the Class Definition of Class 100.
173, Tool Driving or Impacting,   appropriate subclasses for subject matter directed driving or impacting a tool, when such subject matter includes combined features peculiar to tool driving.
227, Elongated-Member-Driving Apparatus,   appropriate subclasses, particularly subclasses 82+ , for combined machines for forming and subsequently driving a member, e.g., nail, staple, etc.
249, Static Molds,   for machines for static molding for forming a helical or threaded product by molding particularly subclass 59 .
411, Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fasteners,   subclasses 337+ , for bolts, screws, nails, washers and similar fasteners, per se.
483, Tool Changing,   for machines or processes comprising a tool transfer means combined with either a tool support of storage means.

SUBCLASSES

[List of Patents for class 470 subclass 1]    1PROCESS:
 This subclass is indented under the class definition.  Subject matter for a method of manufacturing a threaded fastener, a headed fastener, or a washer.
  
[List of Patents for class 470 subclass 2]    2Assembling or disassembling fastener with element:
 This subclass is indented under subclass 1.  Subject matter for a method of associating or disassociating a threaded fastener with means structured to cooperate and function with the fastener.

SEE OR SEARCH THIS CLASS, SUBCLASS:

46,and 48+, for concurrent apparatuses for assembling a fastener with an element for this subclass and its lineal indented subclasses, i.e., subclasses 2 to 7.

SEE OR SEARCH CLASS:

29, Metal Working,   subclasses 428+ for methods of assembly. The fasteners and elements being assembled in this subclass (Class 470 subclass 2) are formed such that the fastener and element are integral such that disassembly would require destruction of the fastener or element.
  
[List of Patents for class 470 subclass 3]    3Bolt or screw with washer:
 This subclass is indented under subclass 2.  Subject matter wherein the fastener comprises an externally threaded securing device having an enlargement at an end of the device structured to function as a head therefor, i.e., a bolt or screw, and further wherein the device is associated with means structured to cooperate and function with the fastener in the form of a perforated disk or annular component, i.e., a washer.
  
[List of Patents for class 470 subclass 4]    4By telescoping:
 This subclass is indented under subclass 3.  Subject matter wherein the nut or washer associated with the bolt or screw by moving the nut or washer along the longitudinal axis of the bolt or screw.
  
[List of Patents for class 470 subclass 5]    5Attaching cap to fastener:
 This subclass is indented under subclass 2.  Subject matter wherein means structured to cooperate and function with the fastener comprises a covering for an end of the fastener.

SEE OR SEARCH THIS CLASS, SUBCLASS:

184,for concurrent apparatuses for capping dies for nails or screws.

SEE OR SEARCH CLASS:

29, Metal Working,   subclasses 428+ for methods of assembly. The processes of this subclass (Class 470, subclass 5) are such specialized manufacturing methods making them proper for Class 470.
  
[List of Patents for class 470 subclass 6]    6Screw fastener:
 This subclass is indented under subclass 5.  Subject matter wherein the fastener comprises an externally threaded fastener having threads which converge to a point on an end of the fastener.
  
[List of Patents for class 470 subclass 7]    7Nail fastener:
 This subclass is indented under subclass 5.  Subject matter wherein the fastener comprises a structure having an impact receiving surface adapted to receive an axially applied force which causes the fastener to penetrate material, substructure, or other work desired to be fastened.
  
[List of Patents for class 470 subclass 8]    8Making externally threaded fastener, e.g., screw or bolt:
 This subclass is indented under subclass 1.  Subject matter wherein the fastener is a threaded fastener comprising an externally threaded securing device having an enlargement at an end of the device structured to function as a head therefor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

57+,for concurrent apparatuses for forming the fasteners formed in this subclass and its lineal indents, i.e., subclasses 8 to 17.
  
[List of Patents for class 470 subclass 9]    9Screw:
 This subclass is indented under subclass 8.  Subject matter wherein the fastener comprises an externally threaded fastener having threads which converge to a point on an end of the fastener.
  
[List of Patents for class 470 subclass 10]    10Forming thread:
 This subclass is indented under subclass 9.  Subject matter having a step of producing an exterior helical ridge on the fastener.

SEE OR SEARCH THIS CLASS, SUBCLASS:

185+,for screw threading dies, per se.
  
[List of Patents for class 470 subclass 11]    11Bolt:
 This subclass is indented under subclass 8.  Subject matter wherein the fastener comprises an externally threaded fastener.

SEE OR SEARCH THIS CLASS, SUBCLASS:

191,for bolt forming dies, per se, 205 for bolt head punching dies, per se.
  
[List of Patents for class 470 subclass 12]    12Having specific configuration:
 This subclass is indented under subclass 11.  Subject matter wherein significance is attributed to the shape of the fastener.
  
[List of Patents for class 470 subclass 13]    13U-frame type:
 This subclass is indented under subclass 12.  Subject matter wherein the fastener comprises a plural shanked structure formed in the shape of the letter U.
  
[List of Patents for class 470 subclass 14]    14Hollow bolt type:
 This subclass is indented under subclass 12.  Subject matter wherein the fastener is provided with a longitudinally extending bore or cavity.
  
[List of Patents for class 470 subclass 15]    15And prong:
 This subclass is indented under subclass 14.  Subject matter wherein the fastener is further provided with a portion structured as a penetrating end to allow the fastener to be used as impact driven fastener.
  
[List of Patents for class 470 subclass 16]    16Formed by extrusion:
 This subclass is indented under subclass 11.  Subject matter having a step of shaping by forcing the fastener through a die.
  
[List of Patents for class 470 subclass 17]    17Formed by heat treatment:
 This subclass is indented under subclass 11.  Subject matter having a step of heating or cooling the fastener to produce desired properties or conditions.
  
[List of Patents for class 470 subclass 18]    18Making internally threaded fastener, e.g., nut:
 This subclass is indented under subclass 1.  Subject matter wherein the fastener is provided with an internal helical ridge.
  
[List of Patents for class 470 subclass 19]    19Lock-nut type, e.g., castellated nut:
 This subclass is indented under subclass 18.  Subject matter wherein the means secures the fastener to a bolt or screw.
  
[List of Patents for class 470 subclass 20]    20Having securement feature:
 This subclass is indented under subclass 18.  Subject matter wherein the fastener is further provided with means for securing the fastener to another structure.
  
[List of Patents for class 470 subclass 21]    21Fusible or deformable type:
 This subclass is indented under subclass 20.  Subject matter wherein the means comprises a metallurgical property of the fastener allowing it to be fused during a heating operation or allowing it to readily mechanically deformed during a metal forming operation.
  
[List of Patents for class 470 subclass 22]    22Weld nut type:
 This subclass is indented under subclass 21.  Subject matter wherein the fastener is capable of being fused during a welding operation.
  
[List of Patents for class 470 subclass 23]    23Having driver engagement feature, e.g., wing nut, etc.:
 This subclass is indented under subclass 18.  Subject matter wherein the fastener is provided with structure for receiving a means used to move the fastener during its fastening operation.
  
[List of Patents for class 470 subclass 24]    24Having decorative feature, e.g., cap nut, etc.:
 This subclass is indented under subclass 18.  Subject matter wherein the fastener is provided with structure functioning solely for aesthetic purposes.
  
[List of Patents for class 470 subclass 25]    25Formed by metal working:
 This subclass is indented under subclass 18.  Subject matter having a step of shaping metal.
  
[List of Patents for class 470 subclass 26]    26Forging:
 This subclass is indented under subclass 25.  Subject matter further having a step of heating metal.
  
[List of Patents for class 470 subclass 27]    27Making headed fastener, e.g., rivet or nail, etc.:
 This subclass is indented under subclass 1.  Subject matter wherein the fastener having an enlargement at an end of the device structured to function as a head therefor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

110+,for concurrent apparatuses for forming the fasteners formed in this subclass and its lineal indents, i.e., subclasses 27 to 40.
168+,for nail plate feeders, per se.
191,for rivet forming dies, per se.
205,for rivet head punching dies, per se.
  
[List of Patents for class 470 subclass 28]    28Rivet type:
 This subclass is indented under subclass 27.  Subject matter wherein the fastener is provided with an end structure consisting of a polycrystalline metallic grain structure which when subjected to an externally applied force is plastically flowable.
  
[List of Patents for class 470 subclass 29]    29Hollow type:
 This subclass is indented under subclass 28.  Subject matter wherein the fastener is provided with a longitudinally extending bore or cavity.
  
[List of Patents for class 470 subclass 30]    30Having prong:
 This subclass is indented under subclass 29.  Subject matter wherein the fastener is further provided with a portion structured as a penetrating end to allow the fastener to be used as impact driven fastener.
  
[List of Patents for class 470 subclass 31]    31Formed by extrusion:
 This subclass is indented under subclass 28.  Subject matter having a step of shaping by forcing the fastener through a die.
  
[List of Patents for class 470 subclass 32]    32Formed by heat treatment:
 This subclass is indented under subclass 28.  Subject matter having a step of heating or cooling the fastener to produce desired properties or conditions.
  
[List of Patents for class 470 subclass 33]    33And pressure, e.g., forging:
 This subclass is indented under subclass 32.  Subject matter having an additional step of applying pressure to the fastener.
  
[List of Patents for class 470 subclass 34]    34Nail type:
 This subclass is indented under subclass 27.  Subject matter wherein the fastener comprises a structure having an impact receiving surface adapted to receive an axially applied force which causes the fastener to penetrate material, substructure, or other work desired to be fastened.
  
[List of Patents for class 470 subclass 35]    35Horseshoe:
 This subclass is indented under subclass 34.  Subject matter wherein the fastener is structured for securing a shoe to the foot of a mammal in the family Equidae.
  
[List of Patents for class 470 subclass 36]    36Formed by heat treatment and metal shaping, i.e., wrought type:
 This subclass is indented under subclass 35.  Subject matter having a step of heating or cooling a fastener and a step of shaping the fastener.
  
[List of Patents for class 470 subclass 37]    37Formed by severing, i.e., cut type:
 This subclass is indented under subclass 34.  Subject matter having a step of penetrating stock material being used to form the fastener with a sharp forming instrument or separating a portion of stock material being used to form the fastener.
  
[List of Patents for class 470 subclass 38]    38Formed by heat treatment and metal shaping, i.e., wrought type:
 This subclass is indented under subclass 34.  Subject matter having a step of heating or cooling a fastener and a step of shaping the fastener.
  
[List of Patents for class 470 subclass 39]    39Spike type:
 This subclass is indented under subclass 38.  Subject matter wherein the fastener has substantially large dimensions such that the fastener can be used for securing substantially large structures or materials.
  
[List of Patents for class 470 subclass 40]    40Wire type:
 This subclass is indented under subclass 34.  Subject matter wherein the fastener is fabricated from an elongated piece of metal stock having a circular cross sectional dimension which is much smaller than the longitudinal dimension of the stock.
  
[List of Patents for class 470 subclass 41]    41Making washer:
 This subclass is indented under subclass 1.  Subject matter wherein the fastener comprises an annular element adapted to be placed beneath the bearing surface of a bolt head, nut, or similar article.

SEE OR SEARCH THIS CLASS, SUBCLASS:

162+,for apparatuses for making washers.
165+,for washer feeders, per se.
197+,for washer forming die.
206,for washer arbors, per se.
  
[List of Patents for class 470 subclass 42]    42Lock-washer type:
 This subclass is indented under subclass 41.  Subject matter wherein the fastener is provided with means to secure same to another structure.
  
[List of Patents for class 470 subclass 43]    43APPARATUS HAVING SAFETY MECHANISM:
 This subclass is indented under the class definition.  Subject matter for apparatus provided with means to prevent damage to either a human operator thereof or to the apparatus or any component thereof.
  
[List of Patents for class 470 subclass 44]    44APPARATUS HAVING AUTOMATIC CONTROL:
 This subclass is indented under the class definition.  Subject matter for apparatus with: (a) means for detecting a characteristic of the work part to be assembled, the assembled product, the assembling apparatus, or the environment of the assembling apparatus affecting its operation, hereinafter referred to as: the sensor; (b) means for initiating or modifying a force or impulse other than that generated or transmitted by the means for detecting; hereinafter referred to as: the activator; (c) means for regulating or modifying an operation of the assembling apparatus; hereinafter to as: the controller.
(1) Note. This definition requires a document to claim or disclose at least four instrumentalities for placement herein, i.e., an assembly apparatus, a sensor, an activator, and a controller. For example, a document disclosing an assembly machine having a cam follower that makes and breaks an electrical circuit that energizes a motor which regulates or modified a part of the machine would be properly classified in this subclass. However, a machine having a cam follower directly linked to a controller, whereby the follower movement directly effects the controller movement is improperly classified in this subclass due to the lack of an activator required by the definition; such an assembly apparatus would be properly classified in subclasses 48+ below.
  
[List of Patents for class 470 subclass 45]    45Having means sensing a condition or change in a condition:
 This subclass is indented under subclass 44.  Subject matter including: (a) means to sense a condition of the work part, the work product, the apparatus or the environment of the apparatus; and (b) means to sense a corresponding condition of information supply to the apparatus; (c) means relate a sensed condition; (d) means to regulate the operation of the apparatus in accordance with any difference between sensed conditions.
  
[List of Patents for class 470 subclass 46]    46For assembling fastener and washer:
 This subclass is indented under subclass 44.  Subject matter wherein apparatus is capable of associating a threaded or headed fastener with a perforated disk or annular component.

SEE OR SEARCH THIS CLASS, SUBCLASS:

49+,for apparatuses for assembling fasteners with washers or other elements.
  
[List of Patents for class 470 subclass 47]    47APPARATUS HAVING MEANS FOR MEASURING OR TESTING:
 This subclass is indented under the class definition.  Subject matter for apparatus provided with means for determining a qualitative or quantitative characteristic or condition of the apparatus or material being processed or operated on by the apparatus.
  
[List of Patents for class 470 subclass 48]    48APPARATUS FOR ASSEMBLING OR DISASSEMBLING FASTENER WITH ELEMENT:
 This subclass is indented under the class definition.  Subject matter for apparatus associating or disassociating a fastener with means structured to cooperate and function with the fastener.

SEE OR SEARCH CLASS:

29, Metal Working,   subclasses 700+ for machines for assembly. See the notes to subclasses 700 for an explanation of the subject matter encompassed therein.
81, Tools,   subclasses 54+ for machine wrenches or screwdrivers capable of turning rotatable work, e.g., bolts, nuts, screws, etc.
  
[List of Patents for class 470 subclass 49]    49Headed fastener with element, e.g., bolt with nut and washer:
 This subclass is indented under subclass 48.  Subject matter wherein the fastener comprises a securing device having an enlargement at an end of the device structured to function as a head therefor, i.e., a bolt, and further wherein the device is associated with means structured to cooperate and function with the device e.g., an internally threaded component such as nut, or a perforated disk or annular component such as a washer.
  
[List of Patents for class 470 subclass 50]    50Having telescoping means:
 This subclass is indented under subclass 49.  Subject matter wherein the means structured to cooperate with the device is associated with the device by the moving the cooperating means along the longitudinal axis of the securing device.
  
[List of Patents for class 470 subclass 51]    51Attaching cap to fastener:
 This subclass is indented under subclass 49.  Subject matter wherein the means structured to cooperate and function with the device comprises a covering for an end of the device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

184,for nail or screw capping dies, per se.

SEE OR SEARCH CLASS:

29, Metal Working,   subclasses 243.5+ for machines, otherwise unprovided for, for assembling elements or parts by engaging a portion of one over another. The machines of this subclass (Class 470 subclass 51) are so specialized as to make them proper for Class 470.
227, Elongated-Member-Driving Apparatus,   appropriate subclasses for apparatus for driving a member into work.
  
[List of Patents for class 470 subclass 52]    52Screw fastener:
 This subclass is indented under subclass 51.  Subject matter wherein the device comprises an externally threaded fastener having threads which converge to a point on an end of the fastener.
  
[List of Patents for class 470 subclass 53]    53Nail fastener:
 This subclass is indented under subclass 51.  Subject matter wherein the device comprises a structure having an impact receiving surface adapted to receive an axially applied force which causes the device to penetrate material, substructure, or other work desired to be fastened.
  
[List of Patents for class 470 subclass 54]    54Having nicking means:
 This subclass is indented under subclass 51.  Subject matter wherein the apparatus is provided with a component capable of forming a shallow notch, cut, or indentation in the covering.

SEE OR SEARCH THIS CLASS, SUBCLASS:

60+,for apparatus for head nicking screws and bolts.
  
[List of Patents for class 470 subclass 55]    55Having means to feed rectangular stock:
 This subclass is indented under subclass 51.  Subject matter wherein the apparatus is provided with a component capable of supplying work material, having a rectangular cross section, to the apparatus.

SEE OR SEARCH THIS CLASS, SUBCLASS:

164,for feeder or distributors, per se.
  
[List of Patents for class 470 subclass 56]    56Having rotatable workholder:
 This subclass is indented under subclass 51.  Subject matter wherein the apparatus is provided with a component capable of securing work material and further wherein the component is capable of rotating the work material relative to the remainder of the apparatus.

SEE OR SEARCH CLASS:

198, Conveyors: Power-Driven,   subclass 345 for rotatable conveyor with means for aligning the conveyed load at a work station, and other subclasses for a rotatable conveyor.
  
[List of Patents for class 470 subclass 57]    57APPARATUS FOR MAKING EXTERNALLY THREADED FASTENER OR ARTICLE, E.G., SCREW, BOLT ETC.:
 This subclass is indented under the class definition.  Subject matter for apparatus for manufacturing a securing device or element having an external helical ridge.

SEE OR SEARCH CLASS:

29, Metal Working,   for machines capable of manufacturing machine screws but additionally capable of forming other similar parts or articles such as binding posts, spoke nipples, etc., particularly subclasses 33+ .
  
[List of Patents for class 470 subclass 58]    58Screw fastener making:
 This subclass is indented under subclass 57.  Subject matter for apparatus for manufacturing a securing device, i.e., a fastener, having an external helical ridge which converges to point on an end of the device.
  
[List of Patents for class 470 subclass 59]    59Wooden screw:
 This subclass is indented under subclass 58.  Subject matter wherein the fastener is composed of cellulose extracted from interior part of a tree.
  
[List of Patents for class 470 subclass 60]    60Having head nicking:
 This subclass is indented under subclass 58.  Subject matter provided with a component capable of forming a shallow notch, cut, or indentation in a head of the fastener.

SEE OR SEARCH CLASS:

409, Gear Cutting, Milling, or Planing,   subclasses 64+ for shaping material by means of a toothed rotary cutter unprovided for elsewhere.
  
[List of Patents for class 470 subclass 61]    61And shaving means:
 This subclass is indented under subclass 60.  Subject matter further provided with a mechanism capable of securing work material and further wherein the mechanism is capable of rotating the work material relative to the remainder of the apparatus.
  
[List of Patents for class 470 subclass 62]    62And rotatable workholder:
 This subclass is indented under subclass 60.  Subject matter further provided with a mechanism capable of securing work material and further wherein the mechanism is capable of rotating the work material relative to the remainder of the apparatus.

SEE OR SEARCH THIS CLASS, SUBCLASS:

120,for horseshoe nail manufacturing machines having a rotary workholder; 129 for wire nail manufacturing machines having rotary workholders; for spike manufacturing machines having rotary workholders.

SEE OR SEARCH CLASS:

269, Work Holders,   appropriate subclasses. Class 269 is the residual locus for patents to a device for clamping, supporting and/or holding an article(s) in position to be operated on or treated. See notes therein for other related loci.
  
[List of Patents for class 470 subclass 63]    63Punch and die type:
 This subclass is indented under subclass 60.  Subject matter wherein the component comprises an first element, i.e., a punch, cooperating with a second element, i.e., a die, whereby the notch, cut or indentation is produced a blow or thrust applied to the punch as the fastener is held between the punch and die.

SEE OR SEARCH THIS CLASS, SUBCLASS:

205,bolt or rivet heading punches, per se.
  
[List of Patents for class 470 subclass 64]    64Having head shaving means:
 This subclass is indented under subclass 58.  Subject matter wherein the fastener is provided with an enlargement at one end of the fastener, i.e., a head, and wherein the apparatus is provided with a component capable of removing material in thin layers or slices from the head.

SEE OR SEARCH THIS CLASS, SUBCLASS:

150,for nail or rivet head finishing machines.
  
[List of Patents for class 470 subclass 65]    65Having pointing means:
 This subclass is indented under subclass 58.  Subject matter wherein the apparatus is provided with a component capable of producing a conical or conoidal point on the fastener.

SEE OR SEARCH THIS CLASS, SUBCLASS:

80+,for machines capable of pointing a blank by the use of threading-chaser which simultaneously threads the remainder of the blank.
  
[List of Patents for class 470 subclass 66]    66Having thread cutting means:
 This subclass is indented under subclass 58.  Subject matter wherein the apparatus is provided with a component capable of producing a helical ridge on the fastener.

SEE OR SEARCH THIS CLASS, SUBCLASS:

111+,screw threading dies, per se.

SEE OR SEARCH CLASS:

82, Turning,   for machines and processes limited to thread cutting operations in which the operation is limited to the Class 82 operation particularly subclasses 110+ , and without any other operation associated with bolt or screw formation. In addition, Class 82 provides for thread forming or cutting machines or devices which solely claim or disclose the cutting of threads on pipes or conduits. Similar cutting machines or devices solely claiming or disclosing the cutting of threads on fasteners are proper in Class 470. See the note relating to Class 470 in the Search Class notes of the Class Definition of Class 82.
409, Gear Cutting, Milling, or Planing,   subclasses 65+ for a thread milling machine.
  
[List of Patents for class 470 subclass 67]    67Portable:
 This subclass is indented under subclass 66.  Subject matter wherein the apparatus is capable of being transported with relative ease.
  
[List of Patents for class 470 subclass 68]    68And pointing means:
 This subclass is indented under subclass 66.  Subject matter wherein the apparatus is provided with a component capable of producing a conical or conoidal point on the fastener.

SEE OR SEARCH THIS CLASS, SUBCLASS:

80+,for machines capable of forming a point by a chasing-cutter while also threading the remainder of the screw.
  
[List of Patents for class 470 subclass 69]    69And severing means:
 This subclass is indented under subclass 66.  Subject matter wherein the apparatus is further provided with a mechanism capable of penetrating stock material being used to form the fastener by the use of a sharp forming instrument or separating a portion of stock material being used to form the fastener.
  
[List of Patents for class 470 subclass 70]    70Having plural dies:
 This subclass is indented under subclass 66.  Subject matter wherein the apparatus is further provided with a mechanism comprising two or more elements capable of cutting, shaping or stamping a portion of the fastener.
  
[List of Patents for class 470 subclass 71]    71Axial aligned:
 This subclass is indented under subclass 70.  Subject matter wherein the the longitudinal axes of the elements along a common line.
  
[List of Patents for class 470 subclass 72]    72Turret mounted:
 This subclass is indented under subclass 70.  Subject matter wherein the elements are installed on a rotatable device structured to hold and secure the elements during a cutting, shaping, or stamping operation.
  
[List of Patents for class 470 subclass 73]    73Having collapsible die:
 This subclass is indented under subclass 66.  Subject matter wherein the apparatus is further provided with a mechanism provided with two elements structured to cooperate to cut, shape, or stamp a portion of the fastener and further wherein the elements are capable of opening or closing with each other such that work material being used to form the fastener can be separated from the mechanism without having to unscrew the material from the mechanism.
(1) Note. The elements or dies used to form the threads on the fastener are know in this art as "chasers".
  
[List of Patents for class 470 subclass 74]    74And bevel operator:
 This subclass is indented under subclass 73.  Subject matter wherein the elements are mounted on and interact with a wedge-shaped device such that axial movement of the device causes the elements to open or close allowing for the insertion or removal of the fastener.

SEE OR SEARCH CLASS:

279, Chucks or Sockets,   subclasses 37 , 47, 48+, 50, 51+, 54, 56, 57, 58+, and the subclasses indented under Socket type, Radially-reciprocating jaws, Moving-cam actuator. (Subclasses 69+).
  
[List of Patents for class 470 subclass 75]    75And cam operator:</