CLASS 92, EXPANSIBLE CHAMBER DEVICES |
1 | WITH TEMPERATURE COMPENSATION: |
This subclass is indented under the class definition. Apparatus including temperature responsive means associated
with the expansible chamber device, said means being effective to overcome
or counteract a pressure change, which effects the expansion or
contraction of the expansible chamber device, resulting from a change
in the ambient temperature adjacent the expansible chamber device,
or a change in the temperature of the working fluid.
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2 | ONE WORKING MEMBER RECIPROCATES AND ANOTHER ROTATES COMMON OUTPUT MEMBER: |
This subclass is indented under the class definition. Apparatus comprising two or more working members which are
movable with respect to each other, said working members being operatively
associated with a single member designed to transmit the mechanical
force exerted by said working members, one of said working members
being effective to impart longitudinal movement to said element,
and a second said working member being effective to impart rotary
motion to said element about the longitudinal axis thereof independently
of the longitudinal movement imparted by said first working member.
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3 | WITH DISENGAGEABLE ROTARY DRIVE FOR MOVING WORKING MEMBER: |
This subclass is indented under the class definition. Apparatus comprising a first rotary element driven by a
source of power, a second rotary element connected to the working
member to drive same, and means to selectively engage or disengage
said first and second rotary elements to connect or disconnect the working
member and source of power.
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5R | WITH (1) SIGNAL OR INDICATOR OR (2) INSPECTION WINDOW IN EXPANSIBLE CHAMBER WALL PORTION: |
This subclass is indented under the class definition. Apparatus including (1) an indicator, register, recorder
or alarm responsive to a condition of operation or position of a
part of the expansible chamber device or of the working fluid or
(2) a window in a wall of an expansible chamber device part to permit
inspection of normally hidden portions of said part or of the working
fluid.
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5L | . With lock |
This subclass has no definition. | |
6R | EFFECTIVE AREA OF WORKING MEMBER END FACE SELECTIVELY VARIABLE: |
This subclass is indented under the class definition. Apparatus in which the expansible chamber device is provided with means whereby the area of the working member end face which is acted upon by the working fluid or which acts upon the working fluid during movement of the working member may be selectively changed. | |
6D | . With diaphragm |
This subclass has no definition. | |
7 | WITH OVERCENTER MEANS TO BIAS WORKING MEMBER IN OPPOSITE DIRECTIONS OVER DIFFERENT PORTIONS OF STROKE: |
This subclass is indented under the class definition. Apparatus including means movable with the working member,
said means comprising a portion which moves in an arcuate path between
end limit positions corresponding to the end limits of the working
member stroke, said means being effective during the first half of
the working member stroke and while said portion moves toward a
center position between said end positions to exert a force in a direction
resisting the movement of the working member, and during the last
half of the working member stroke while said portion moves away
from said center position to exert a force in an opposite direction
to assist the movement of the working member.
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8 | WITH MEANS TO CONTROL FLOW OF NON-WORKING ARRESTING FLUID FOR WORKING MEMBER: |
This subclass is indented under the class definition. Apparatus comprising a body of nonworking fluid adapted
to flow as a result of working member movement and incident to said
flow to retard or stop the movement of the working member, and means
for varying the flow of the nonworking fluid.
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9 | . Flow control means positioned between chambers having a common wall movable with working member: |
This subclass is indented under subclass 8. Apparatus in which the body of fluid is positioned in an enclosure having a movable partition therein which is in sliding sealing engagement with the enclosure wall providing a pair of chambers, said partition being secured for movement with the working member, fluid passage means extending between said chambers for placing said chambers in fluid communication with each other, and flow varying means positioned in said passage means. | |
10 | . Work member position control: |
This subclass is indented under subclass 8. Apparatus in which the flow varying means is controlled in response to the working member attaining a certain position in the working chamber. | |
11 | .. With auxiliary adjustable throttle (12): |
This subclass is indented under subclass 10. Apparatus including a second means for varying the flow
of the non working fluid, said second means being adapted to be
selectively moved and held to different flow varying positions.
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12 | . Adjustable throttle (11): |
This subclass is indented under subclass 8. Apparatus in which the flow varying means is adapted to
be selectively moved and held in different flow varying positions.
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12.1 | DISPLACEMENT CONTROL OF PLURAL CYLINDERS ARRANGED IN PARALLEL, RADIAL, OR CONICAL RELATIONSHIP WITH ROTARY TRANSMISSION AXIS: |
This subclass is indented under the class definition. Apparatus comprising two or more cylinders, each cylinder
being provided with a relatively reciprocating piston (includes diaphragm)
to thereby form a plurality of expansible chambers, the cylinders
or a transmission element in common operative engagement with said
cylinders or pistons being adapted for continuous rotation about
a fixed axis; said cylinders being physically arranged in a manner
such that their longitudinal axes either (1) intersect at a common
point or (2) extend parallel to said axis of rotation; there being
provided means to selectively vary either the extent or end limits
of reciprocatory movement between said cylinders and their respective
relatively reciprocating pistons.
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12.2 | . Parallel cylinders: |
This subclass is indented under subclass 12.1. Apparatus in which the longitudinal axes of said plural
cylinders are parallel to and spaced from said axis of rotation.
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13 | .. WITH ADJUSTABLE MEANS TO VARY STROKE OF WORKING MEMBER: |
This subclass is indented under the class definition. Apparatus comprising means associated with the expansible
chamber device, said means being adapted to be selectively positioned
or moved and held in different positions to either change the extent
or vary the end limits of reciprocatory movement of the working member
relative to the working chamber.
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13.1 | . Having motor-operated adjustment: |
This subclass is indented under subclass 13. Apparatus in which the means which is moved or positioned
to change the extent of movement of the working member is actuated
by a motor.
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13.2 | . Flexible wall-type working member: |
This subclass is indented under subclass 13. Apparatus in which the expansible chamber is defined in
part by a deformable wall, movement of said deformable wall being
caused by or effecting expansion and contraction of the chamber.
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13.3 | . Stroke of one working member adjustable relative to another: |
This subclass is indented under subclass 13. Apparatus in which the extent of movement of said working
member is changed relative to and independent of the extent of movement
of another relatively movable working member.
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13.4 | . Predetermined discrete incremental adjustment positions: |
This subclass is indented under subclass 13. Apparatus in which the means which is moved or positioned to change the extent of movement of the working member is limited to be moved and held or positioned in one or more preselected adjustment locations and not capable of being held or positioned in locations other than or intermediate of said preselected positions. | |
13.41 | .. Adjustment by assembly or disassembly: |
This subclass is indented under subclass 13.3. Apparatus in which the means which is moved or positioned to change the extent of working member movement comprises an element which is either (1) removed from the device and replaced therein in a different position or location, (2) removed from the device or, (3) assembled to the device. | |
13.5 | . Independent adjustment of opposite stroke limits of single reciprocating working member: |
This subclass is indented under subclass 13. Apparatus in which the means which is selectively positioned or moved and held in different positions changes the extent of reciprocatory movement of a single working member in one stroke direction only; there being provided additional means which is selectively positioned or moved and held in different positions for changing the extent of reciprocatory movement of said working member in the other stroke direction, said additional means being selectively positionable or movable separately and irrespective of movement of said first mentioned means. | |
13.51 | . Axial adjustment of spaced, rigidly interconnected working member faces: |
This subclass is indented under subclass 13. Apparatus in which the working member forms a pair of axially spaced working faces which are normally rigidly interconnected, the selectively positionable or movable means being effective to change the axial spacing of said working faces for the purpose of changing the extent of reciprocatory movement of said working member. | |
13.6 | . Adjustable abutment positioned within working chamber: |
This subclass is indented under subclass 13. Apparatus in which the means which is selectively positioned or moved to change the extent of working member movement comprises an element having a portion which is positioned within the confines of the working chamber and exposed to working fluid therein; the portion of said element within the working chamber being either (1) fixed against movement by the working member and engageable therewith to limit the extent of working member movement or (2) positioned on the working member for movement therewith and engageable with a fixed member (e.g., cylinder end wall) for limiting the extent of working member movement. | |
13.7 | . By adjusting or limiting motion of relatively movable power transmission element: |
This subclass is indented under subclass 13. Apparatus in which there is provided means for transmitting
motion to or from the working member comprising at least one element
(e.g., cam, gear, link, etc.), which is mechanically associated
with and movable relative to the working member; the selectively
positionable or movable means for changing the extent of working
member movement being operatively associated with said relatively
movable transmission element to either (1) limit the motion of said
element for changing the extent or varying the end limits of working
member or (2) change the driving relationship of said element relative
to the working member or another element of the transmission for
the purpose of changing the extent or varying the end limits of working
member movement.
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13.8 | . Adjustment means includes external axially extending threaded piston stem: |
This subclass is indented under subclass 13. Apparatus in which there is provided an element carried by piston type working member which extends axially therefrom to a location exterior of the working chamber (e.g., piston rod), the portion of said element exterior of said working chamber being provided with screw threads for threadably engaging the means which is positionable or moved and held for changing the extent of working member movement. | |
14 | WORKING MEMBER MOVES LOAD AND LATCHING MEANS FOR LOAD: |
This subclass is indented under the class definition. Apparatus comprising an element positioned to be moved by a working member, said working member being capable of limited relative motion with respect to said element, and means engageable with said element to prevent movement thereof, said means being engageable by said working member during the initial portion of its stroke to disengage said means from operative position with respect to said element to allow movement of said element in response to further movement of said working member. | |
15 | WITH RELEASABLE STOP OR LATCH MEANS TO PREVENT MOVEMENT OF WORKING MEMBER: |
This subclass is indented under the class definition. Apparatus comprising means engageable between a working
member or a member moved thereby and a fixed part, said means when
engaged being effective to prevent the movement of said working
member relative to said part in at least one direction of its movement
at some point along the path of travel thereof, said means being
selectively disengageable to permit movement of the working member
in such direction.
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16 | . With timing or delay means: |
This subclass is indented under subclass 15. Apparatus including means for actuating the movement preventing
means, said first means being capable of causing a predetermined period
of time to elapse before actuation of the movement preventing means
is effected.
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17 | . Engages member coaxial with and rotatable relative to working member: |
This subclass is indented under subclass 15. Apparatus comprising an element having the axis thereof coinciding with the axis of the working member, said element being connected to the working member so that reciprocation of the working member effects relative rotation between said working member and element, and in which the movement preventing means is adapted to engage said element to prevent rotation thereof relative to said working member, and thereby prevent movement of the working member. | |
18 | . Includes interfitting parts engageable at plural positions including position intermediate stroke limits: |
This subclass is indented under subclass 15. Apparatus in which the movement preventing means comprises an element having intermeshing engagement with the working member or member moved thereby, said element being adapted to intermesh with said working member or member moved thereby at plural predetermined spaced locations corresponding to spaced locations of the working member along its path of travel, at least one of said locations corresponding to a position between the opposite extremities of said path of travel. | |
19 | .. Self-engaging: |
This subclass is indented under subclass 18. Apparatus in which means are provided to bias the intermeshing element toward engaging position with the working member or member moved thereby, so that the intermeshing element is self engaging as the working member or member moved thereby reaches one of said predetermined locations. | |
20 | . Engages power element movable relative to working member: |
This subclass is indented under subclass 15. Apparatus comprising a member by which power is transmitted to or from the working member, said member being connected to said working member to permit relative movement therebetween and in which the movement preventing means is adapted to engage said member to prevent movement of said member and the working member. | |
21R | . Plural selectively operable actuators for releasable means: |
This subclass is indented under subclass 15. Apparatus in which the movement preventing means is movable either to engage or disengage position by two or more separate means, said means being distinct from each other and being operable independently of each other. | |
21MR | .. Manual release |
This subclass has no definition. | |
22 | . Relatively movable working members with interdependent means: |
This subclass is indented under subclass 15. Apparatus comprising two or more working members which are movable with respect to each other and movement preventing means to prevent movement of each of said working members, said movement preventing means for each of the working members being actuated by another of said working members. | |
23 | . Means includes element interfitting between working member and fixed part: |
This subclass is indented under subclass 15. Apparatus in which said movement preventing means includes
an element providing intermeshing engagement between the working member
and a fixed member.
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24 | .. Element actuated or retained in operative position by relatively movable fluid responsive member: |
This subclass is indented under subclass 23. Apparatus in which the intermeshing element is moved to or from, or retained in working member movement preventing relationship by means of a member which is movable relative to said intermeshing element, said member being movable responsive to the action of a pressure fluid. | |
25 | ... With pivoted link between element and member: |
This subclass is indented under subclass 24. Apparatus including a mechanical motion converting means including a pivoted link between the intermeshing element and the fluid pressure actuated member so that motion of the member will be transmitted to said intermeshing element through said pivoted link. | |
26 | ... Resilient element: |
This subclass is indented under subclass 24. Apparatus in which the element is formed of flexible resilient material. | |
27 | .. Fluid actuated (28): |
This subclass is indented under subclass 23. Apparatus in which the intermeshing element is moved to
or from intermeshing relationship with the working member responsive
to the action of a pressure fluid.
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28 | . Fluid actuated (27): |
This subclass is indented under subclass 15. Apparatus in which the disengageable means is moved to or
from working member movement preventing relationship responsive
to the action of a pressure fluid.
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29 | WITH RELEASABLE LATCH MEANS BETWEEN WORKING MEMBER AND POWER TRANSMISSION ELEMENT AXIALLY SLIDABLE THEREIN: |
This subclass is indented under the class definition. Apparatus in which the working member is provided with a passage extending axially therethrough, and including an element designed to transmit movement to or from the working member, said element extending through the passage and mounted for sliding movement relative to the working member, and releasable interengaging means for selectively coupling or uncoupling the working member to the element to allow or prevent relative movement between said working member and element. | |
30 | WITH RESILIENT DETENT: |
This subclass is indented under the class definition. Apparatus comprising a spring biased member having cooperative
intermeshing engagement between the working member or a member moved
thereby and a relatively movable element, the intermeshing engagement being
such that relative movement between the working member or the member
moved thereby and the relatively movable element effects disengagement
of the spring biased member from cooperative intermeshing engagement.
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31 | RECTILINEARLY MOVING WORKING MEMBER AND COAXIAL OR PARALLEL ELEMENT SLIDABLY INTERENGAGED FOR RELATIVE ROTARY MOVEMENT: |
This subclass is indented under the class definition. Apparatus comprising an element positioned with the axis
thereof coinciding with or parallel to the axis of the working member, said
working member and element being slidably interengaged and including
cooperating means therebetween such that (1) said element has rotary
movement and the working member has rectilinear movement or (2)
the element is fixed and the working member has both rotary and
rectilinear movement.
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32 | . Working fluid-actuated interengaging means permits unidirectional rotation of element relative to fixed part: |
This subclass is indented under subclass 31. Apparatus comprising means engageable between the element and a fixed part, and being effective to allow rotation of the element relative to the fixed part in one direction of movement of the working member, and to prevent rotation of said element relative to the fixed part in the other direction of movement of the working member, said means being moved to or from engaged position responsive to the action of the working fluid for the expansible chamber device. | |
33 | . Element extends through working member portion: |
This subclass is indented under subclass 31. Apparatus in which the element is positioned to extend through a portion of the working member in some position of axial movement of the working member. | |
34 | BELLOWS TYPE EXPANSIBLE CHAMBER: |
This subclass is indented under the class definition. Apparatus comprising a flexible structure which is capable
of expanding to increase the volumetric capacity thereof, said structure comprising
(1) a tube of flexible material having a circumferentially corrugated
or pleated wall, (2) at least two annular plates arranged in superposed
relation, said plates being hingedly secured together in sealed
relation along their inner peripheral edges only or (3) a pair of
rigid plate like members pivoted together along a portion of their
peripheral edges, the remaining peripheral edge portion of said
plates being joined together by a flexible member which is pleated
in some position of relative pivotal movement of the plate like
members.
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35 | . Expansible chamber formed by concentric bellows: |
This subclass is indented under subclass 34. Apparatus comprising two concentrically arranged bellows defining a ring shaped expansible chamber therebetween. | |
36 | . With non-bellows type expansible chamber: |
This subclass is indented under subclass 34. Apparatus including a second expansible chamber device other than a bellows type. | |
37 | . Plural bellows: |
This subclass is indented under subclass 34. Apparatus comprising two or more bellows type expansible chamber devices. | |
38 | .. Non-working liquid moved by first bellows effects movement of second bellows: |
This subclass is indented under subclass 37. Apparatus in which the plural bellows expansible chambers are provided with passage means establishing communication between the chambers formed by the several bellows, and including a body of nonworking liquid contained within said bellows chambers such that contraction of one of the bellows will cause such liquid to flow into a second bellows to thereby cause expansion of such second bellows. | |
39 | .. With common movable wall: |
This subclass is indented under subclass 37. Apparatus in which the several bellows type expansible chambers are provided with a wall secured to adjacent ends of the chambers to form a closure wall for each of said chambers, said wall being movable responsive to expansion or contraction of either chamber. | |
40 | . With separate biasing means: |
This subclass is indented under subclass 34. Apparatus including a separate means other than the working
fluid associated with the bellows type expansible chamber for continuously exerting
a force in one direction of movement of said bellows type expansible
chamber.
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41 | . With vibration damping means: |
This subclass is indented under subclass 34. Apparatus including means designed to subdue vibrations
incurred in the bellows type expansible chamber wall during expansion
or contraction of such bellows.
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42 | . With separate ring-like reinforcing element abutting pleat: |
This subclass is indented under subclass 34. Apparatus including a ring-like member positioned to abut against the bellows type expansible chamber wall at the apex of a pleat thereof, said ring-like member forming a means for restraining radial movement of said pleat portion. | |
43 | . With stop means to limit axial movement of bellows: |
This subclass is indented under subclass 34. Apparatus including means associated with the bellows type
expansible chamber wall and axially movable therewith, said means
being engageable with a fixed member lying in the path of travel
of the bellows type expansible chamber wall to arrest movement of
said bellows type expansible chamber wall after a predetermined
extent of axial movement thereof.
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44 | . With guide means: |
This subclass is indented under subclass 34. Apparatus including a rigid member extending parallel to the longitudinal axis of the bellows type expansible chamber device, said bellows type expansible chamber device having a portion thereof slidably engaged with said rigid member, said member functioning to constrain said bellows device to a path of travel extending parallel to the longitudinal axis thereof. | |
45 | . Superposed peripherally interconnected elements: |
This subclass is indented under subclass 34. Apparatus in which the pleated portion includes a pair of superposed ring shaped elements having the inner peripheral portion thereof secured together. | |
46 | .. With nonmetallic portion: |
This subclass is indented under subclass 45. Apparatus in which a portion of the ring shaped elements or the means forming the connection between the elements include a nonmetallic material. | |
47 | . Specific or diverse material (103): |
This subclass is indented under subclass 34. Apparatus in which the bellows wall is formed of (1) two
or more different materials, (2) a single material which has been
treated to provide portions of the bellows wall with specific properties
which are different from the properties of another portion thereof
or (3) claimed as of a specific material.
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48 | PLURAL FLEXIBLE WALL WORKING MEMBERS: |
This subclass is indented under the class definition. Apparatus comprising two or more working members, each of
said working members having a portion of the wall thereof formed
of material which is pliable, and in which the flexing of said pliable
material constitutes the movement of said working member.
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49 | . Diaphragm type having working fluid contacting areas of different size: |
This subclass is indented under subclass 48. Apparatus in which each working member comprises a relatively
thin membrane like member peripherally secured to an encompassing
tubular structure and extending inwardly from said peripherally
secured edge portion forming a partition for said tubular structure, and
in which the surface area of one working member adapted to contact
the working fluid is larger than the working fluid contacting surface area
of a second of said working members.
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50 | . Oppositely movable walls of common chamber (69) (75): |
This subclass is indented under subclass 48. Apparatus in which the working members form opposite walls
of a chamber which is adapted to contain the working fluid, said
working members being movable toward and away from each other during
the contraction and expansion of the expansible chamber device.
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51 | MUTUALLY RELATIVELY MOVABLE CYLINDER OR SLEEVE, MEMBER SEALINGLY SLIDABLE THEREIN AND OUTER CYLINDER THEREFOR: |
This subclass is indented under the class definition. Apparatus comprising a first cylinder or elongated tubular
element, a member positioned in said first cylinder or tubular element in
coaxial relationship therewith, and a second cylinder for receiving
said first cylinder or tubular element therein, said member sealingly engaging
said first cylinder or tubular element and being axially slidable
relative thereto and said second cylinder sealingly engaging said first
cylinder or tubular element and being axially slidable relative
thereto and to said member.
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52 | . Cylinder or sleeve forms working member: |
This subclass is indented under subclass 51. Apparatus in which said first cylinder or tubular element is so arranged in the device as to constitute a working member. | |
53 | . With additional cylinder relatively slidable exteriorly of outer cylinder: |
This subclass is indented under subclass 51. Apparatus including an additional cylinder receiving said second cylinder therein in coaxial relationship, said second cylinder sealingly engaging said additional cylinder and being axially slidable relative thereto. | |
54 | ROTATING CYLINDER: |
This subclass is indented under the class definition. Apparatus comprising a cylinder having a piston therein,
said cylinder being mounted on a fixed supporting structure for
movement during operation relative thereto in a circular path of
more than 360 degrees about an axis other than the longitudinal
axis of the cylinder, said movement being responsive to or causing the
expansion or contraction of the expansible chamber.
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55 | . Fluid conduit coaxial with axis of rotation: |
This subclass is indented under subclass 54. Apparatus comprising a conduit for conducting fluid to or from said cylinder, the axis of said conduit coinciding with the axis of rotation of said cylinder. | |
56 | . Plural cylinders: |
This subclass is indented under subclass 54. Apparatus comprising two or more cylinders mounted for movement
about said axis.
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57 | .. Axes of cylinders parallel to axis of rotation: |
This subclass is indented under subclass 56. Apparatus in which the several cylinders are positioned
with the axes thereof parallel to each other and in which the axis
of the circular path extends in a direction parallel to the axes of
the several cylinders.
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58 | .. Axes of cylinders intersect axis of rotation at common point: |
This subclass is indented under subclass 56. Apparatus in which the several cylinders are so positioned
relative to each other as to have the axes thereof intersect at
a point on said axis.
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58.1 | KNOCKDOWN OR FLOW CONDUIT STORAGE OR RETRIEVAL MEANS: |
This subclass is indented under the class definition. Apparatus in which either (1) the expansible chamber device
or power transmission portion thereof is adapted to be rearranged
for storage purposes or (2) the expansible chamber device is provided
with a conduit for conducting working fluid to or from the chamber
and means to return the conduit to or retain the conduit in a nonuse
or stored position.
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59 | CONVERTIBLE, OR CHANGEABLE BY ASSEMBLY OR DISASSEMBLY: |
This subclass is indented under the class definition. Apparatus (A) adapted to be rearranged to perform a different
function or (B) adapted to be altered so as to operate in a different
way or change its function in some way by (1) disassembling the
device in some major portion and then reassembling the device with
the same or different portion, (2) disassembling some major portion
from the device, or (3) assembling some major portion to the device.
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60 | WITH FLEXIBLE OR RESILIENTLY BIASED NON-WORKING MEMBER MOVABLE WALL IN CONSTANT COMMUNICATION WITH WORKING CHAMBER: |
This subclass is indented under the class definition. Apparatus including a movable wall for the expansible chamber device other than a working member positioned to be in constant open communication with the working chamber, said movable wall being either (1) made of resilient flexible material or (2) urged in one direction by means of a spring device. | |
60.5 | SELECTIVE CLEARANCE CONTROL: |
This subclass is indented under the class definition. Apparatus comprising selectively adjustable means to change
the volume of the expansive chamber remaining after the working member
has reached the limit of its movement in a chamber decreasing direction,
said means not involving a mere stroke of the working member.
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61 | RELATIVELY MOVABLE WORKING MEMBERS: |
This subclass is indented under the class definition. Apparatus comprising two or more working members which are
movably related to each other.
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62 | . First working member moves second coaxial working member through separating abutment surfaces: |
This subclass is indented under subclass 61. Apparatus comprising a first working member movable along a path, and a second working member coaxial therewith, means on said first working member normally free of force transmitting engagement with said second working member at some point along the path of travel of said first working member and adapted to contact and move said second working member at some other point along the path of travel of said first working member. | |
63 | .. With separate biasing means for a working member: |
This subclass is indented under subclass 62. Apparatus including a separate means other than the working
fluid associated with at least one of the working members for continuously exerting
a force in one direction of movement of said working member.
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64 | . One a flexible wall type: |
This subclass is indented under subclass 61. Apparatus in which one of said working members has at least
a portion of the wall thereof formed of material which is pliable,
and in which the flexing of said pliable material constitutes the
movement of said working member.
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65 | . Rigid stem on first working member portion extends through second working member: |
This subclass is indented under subclass 61. Apparatus comprising a first working member provided with a rigid stem extending axially therefrom, and a second working member provided with an opening extending axially therethrough, said rigid stem on said first working member extending slidably through said opening as said working members move relative to each other. | |
66 | . Moving cylinders: |
This subclass is indented under subclass 61. Apparatus in which (1) the relatively movable working members
comprise movably mounted cylinders or (2) the relatively movable
working members are disposed in movably mounted cylinders.
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67 | . Oscillating working members: |
This subclass is indented under subclass 61. Apparatus in which the working members are of the type which
move back and forth in an arcuate path within a working chamber
to effect expansion or contraction of the expansible chamber, the
travel of said working members in one direction of said arcuate
path being limited to no more than 360 degrees.
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68 | . Interconnected with common rotatable shaft: |
This subclass is indented under subclass 61. Apparatus including a shaft mounted for rotation, and a
means (e.g., linkage or gearing) interconnecting said shaft and
the working members so that rotation of the shaft effects reciprocatory
motion of the working members, or reciprocatory movement of the
working members effects rotation of the shaft.
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69R | .. Oppositely movable walls of common chamber (50) (75): |
This subclass is indented under subclass 68. Apparatus in which the working members form opposite walls
of a chamber which is adapted to receive the working fluid, said
working members being movable toward and away from each other during
the contraction and expansion of the expansible chamber.
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70 | ... Shaft axis parallel to axes of working members (71): |
This subclass is indented under subclass 69. Apparatus in which the axes of the working members are coaxial
or parallel to each other and the axis of the shaft is parallel
to the axes of the working members.
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69A | ... One piston rod passes through opposite piston rod |
This subclass has no definition. | |
69B | ... Single crankshaft offset from center of work chamber |
This subclass has no definition. | |
71 | .. Shaft axis parallel to axes of working members (70): |
This subclass is indented under subclass 68. Apparatus in which the axes of the working members are parallel
to each other, and the axis of the shaft is parallel to the axes
of the working members.
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72 | .. Shaft axis intersected by axes of working members: |
This subclass is indented under subclass 68. Apparatus in which the axis of the rotary shaft extends
transversely to the direction of movement of the working members,
and the longitudinal axes of the working members intersect the axis
of the shaft.
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73 | ... Parallel working members: |
This subclass is indented under subclass 72. Apparatus in which the working members are so arranged relative to each other that the longitudinal axes of the various working members are parallel. | |
74 | .... Shaft extends transversely through working members: |
This subclass is indented under subclass 73. Apparatus in which each of the relatively movable working members is provided with an opening extending therethrough in a direction perpendicular to the direction of a movement of the working member, and the shaft extends through the opening in each of the working members. | |
75 | . Oppositely movable walls of common chamber (50) (69): |
This subclass is indented under subclass 61. Apparatus in which the working members form opposite walls
of a chamber which is adapted to receive the working fluid, said
working members being movable toward and away from each other during
the contraction and expansion of the expansible chamber.
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76 | . Interconnected by linkage having relatively movable members: |
This subclass is indented under subclass 61. Apparatus in which the working members are interconnected
by means of a mechanical motion converting linkage device having
parts which are movable relative to each other.
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77 | GROUND EMBEDDED EXPANSIBLE CHAMBER: |
This subclass is indented under the class definition. Apparatus comprising an enclosure or casing for forming the working chamber of the expansible chamber device, said enclosure or casing being positioned within a cavity in the earth, the surrounding walls of said cavity being in contact with and forming reinforcing means for said working chamber forming enclosure or casing. | |
78 | WITH FLUID PURIFYING MEANS: |
This subclass is indented under the class definition. Apparatus including means for separating or filtering a
foreign material from a fluid which is adapted to contact a portion
of the working member to enhance the operation of some portion of
the expansible chamber device (e.g., working fluid or lubricant).
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79 | . Means separates gas from liquid: |
This subclass is indented under subclass 78. Apparatus in which the fluid is a liquid and the separating
or filtering means is adapted to remove a gaseous fluid entrained
in said liquid.
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80 | WITH FORCE EXERTING MEANS TO MOVE FLUID FROM NON-WORKING CHAMBER: |
This subclass is indented under the class definition. Apparatus including means such as a pump for exerting a
force upon a fluid to remove such fluid from a space in the expansible
chamber device, other than the working chamber.
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81 | WORKING MEMBER FORMS RESERVOIR FOR NON-COMPRESSIBLE WORKING FLUID: |
This subclass is indented under the class definition. Apparatus comprising a working member having a chamber formed therein, said chamber being in open communication with the working chamber through a restricted opening in said working member end face and forming a storage space for a noncompressible liquid type working fluid, said noncompressible working fluid being effective to move said working member upon being exhausted from said working member chamber to said working chamber through said restricted opening. | |
82 | WITH MEANS TO CONTROL FLUID FLOW FROM NON-WORKING CHAMBER: |
This subclass is indented under the class definition. Apparatus comprising a passage communicating with a space
in the expansible chamber device other than the space which forms
the working chamber, and valve means for said passage to control
the egress of fluid from said space.
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83 | LIQUID POOL SEALING RELATIVELY MOVABLE CHAMBER WALLS: |
This subclass is indented under the class definition. Apparatus in which a portion of the expansible chamber device is provided with a space which contains a body of nonworking liquid, the working member being provided with a portion which extends into said liquid at all positions of movement of said working member to form a seal between the working chamber and a nonworking chamber space. | |
84 | RESILIENT MEANS INTERPOSED BETWEEN WORKING MEMBER AND RELATIVELY MOVABLE POWER TRANSMISSION ELEMENT: |
This subclass is indented under the class definition. Apparatus comprising a working member and a power transmission
member movable with respect thereto, a resilient device interposed
between and in engagement with said members, said members being
so related that movement of one of said members is effective to
move said other member by means of said resilient element.
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85R | WITH CUSHIONING MEANS EFFECTIVE OVER A PORTION ONLY OF STROKE: |
This subclass is indented under the class definition. Apparatus including means operable for a portion only of
the stroke of the working member, said means being effective to
cushion the movement of such working member over the portion of
the stroke in which it is effective.
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85A | . Metal spring |
This subclass has no definition. | |
85B | . Fluid spring |
This subclass has no definition. | |
86 | WITH REMOVAL CONDUIT FOR LIQUID SEEPAGE FROM EXPANSIBLE CHAMBER: |
This subclass is indented under the class definition. Apparatus including a passage means communicating with a space in the expansible chamber device which is intended to form a receiver for liquid which escapes from the working chamber, said conduit forming a means for allowing escape of such liquid from said space. | |
86.5 | PASSAGE IN CYLINDER FOR APPLICATION OF SEPARATE FLUID TO CYLINDER AND PISTON SIDE WALL INTERFACE: |
This subclass is indented under the class definition. Apparatus in which the working chamber is defined by a cylinder having a port or passage formed therein which terminates in an opening on an interior longitudinal wall portion of the cylinder which is adapted to be traversed by the working member, said passage or port being provided for the purpose of allowing entry of a nonworking fluid (e.g., sealant or lubricant) to the area of cylinder and working member interengagement. | |
87 | WITH NON-SEALING CLEANING MEANS: |
This subclass is indented under the class definition. Apparatus including means for scraping, dissolving or otherwise removing foreign matter from a part of an expansible chamber device, said means being in nonsealing relationship with said part of the expansible chamber device from which such foreign matter is being removed. | |
88 | SEALED OPENING IN LONGITUDINAL WALL OF CHAMBER FOR RECEIVING WORKING MEMBER PORTION: |
This subclass is indented under the class definition. Apparatus comprising an elongated chamber for receiving a reciprocating working member, the longitudinal wall of said chamber being provided with an elongated opening extending between the ends of the chamber through which a portion of the working member is adapted to protrude and means cooperating with said chamber wall adjacent the opening to seal the opening adjacent said protruding portion. | |
89 | COLLAPSIBLE CHAMBER WALL PORTION (E.G., HINGED OR FLEXIBLE WALL): |
This subclass is indented under the class definition. Apparatus comprising a wall portion of an expansible chamber,
said wall portion being formed of flexible material or rigid members hinged
or interfitted together so that the members are movable relative
to each other; the flexing of the material or the relative movement
of the members constituting the movement which effects the work
function of the expansible chamber.
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90 | . Wall portion formed of flexible material: |
This subclass is indented under subclass 89. Apparatus in which the wall portion is formed of flexible
material.
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91 | .. Envelope having restricted fluid opening: |
This subclass is indented under subclass 90. Apparatus comprising a bulb, bag, box or other container
like enclosure formed of flexible material, said enclosure being
provided with a relatively small opening in a wall thereof through
which working fluid may be admitted to or exhausted from the enclosure.
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92 | ... Non-metallic: |
This subclass is indented under subclass 91. Apparatus in which the box, bag or bulb member is formed
of nonmetallic material.
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93 | .. Annular flexible wall portion peripherally sealed to spaced relatively fixed concentric rigid members: |
This subclass is indented under subclass 90. Apparatus comprising a pair of concentric rigid members, said members being fixed with respect to each other and being radially spaced from each other to provide a ring shaped space therebetween and a ring shaped flexible wall portion spanning said space and having the inner periphery thereof in sealing engagement with the inner member and the outer periphery thereof in sealing engagement with the outer member. | |
94 | .. With separate biasing means: |
This subclass is indented under subclass 90. Apparatus including a separate means other than the working
fluid associated with the flexible wall portion for continuously
exerting a force in one direction of movement of said flexible wall
portion.
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95 | ... Adjustable: |
This subclass is indented under subclass 94. Apparatus in which the force exerted by the means may be
selectively increased or decreased so that the force exerted on
the flexible wall portion by the means can be varied.
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96 | .. Diaphragm type: |
This subclass is indented under subclass 90. Apparatus comprising a relatively thin membrane-like member
having a peripheral edge portion, said member being adapted to be
associated with a surrounding or encompassing tubular rigid structure
to extend transversely thereof to form a closing wall for said tubular structure,
the outer peripheral edge of said membrane being in sealing relationship
with the encompassing wall of said tubular structure.
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97 | ... Axially spaced flexible wall portions with interposed incompressible means: |
This subclass is indented under subclass 96. Apparatus in which the diaphragm comprises two or more relatively
thin membranes positioned with one member overlying and spaced from
the other member, and means comprising a rigid element or an incompressible
fluid positioned between said members, so that movement of one member
is transmitted to said other member through said rigid element or incompressible
fluid.
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98R | ... Entire periphery secured to rigid working chamber forming wall: |
This subclass is indented under subclass 96. Apparatus in which the periphery of the diaphragm is directly
secured along all of its length against motion in any direction
to the wall of a rigid structure which forms the working chamber
for the diaphragm.
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99 | .... With undistortable member secured to central portion of diaphragm: |
This subclass is indented under subclass 98. Apparatus including a rigid member spaced from the wall of the working chamber and coaxial with such working chamber, said rigid member being secured to a portion of the diaphragm lying inwardly of the peripheral edge thereof. | |
100 | ..... Member includes coextensive plate-like elements secured to opposite side of diaphragm: |
This subclass is indented under subclass 99. Apparatus in which said rigid member includes a pair of plate-like members of the same area, said plate-like members being positioned on opposite sides of the diaphragm. | |
101 | .... Abutment connection between diaphragm and power transmission element: |
This subclass is indented under subclass 98. Apparatus comprising a rigid power transmission element positioned within the working chamber, said element being unsecured to the diaphragm (i.e., capable of movement with respect thereto) and adapted to be abutted thereby. | |
102 | .... With separate seal means between diaphragm and member: |
This subclass is indented under subclass 98. Apparatus in which a separate sealing gasket is interposed between the peripheral portion of the diaphragm and the rigid structure. | |
98D | .... Rolling diaphragm |
This subclass has no definition. | |
103R | ... Specific or diverse material (47): |
This subclass is indented under subclass 96. Apparatus in which the diaphragm is formed of (1) two or
more different materials, (2) a single material which has been treated
to provide portions of the diaphragm with specific properties which
are different from the properties of another portion thereof or
(3) claimed as of a specific material.
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103F | .... With reinforcement embedded in diaphragm |
This subclass has no definition. | |
103SD | .... Synthetic diaphragm (non-metal and non-rubber) |
This subclass has no definition. | |
103M | .... Metal diaphragm |
This subclass has no definition. | |
104 | ... Corrugated: |
This subclass is indented under subclass 96. Apparatus in which the working fluid contacting face of the diaphragm is provided with an embossment formed by having a portion of the material thereof deformed out of the plane of said face. | |
105 | .. Coaxial radially spaced relatively movable undistortable members joined by flexible wall: |
This subclass is indented under subclass 90. Apparatus comprising a rigid tubular member, a second rigid
member movable relative to said tubular member positioned within
said tubular member with the axis thereof coinciding with the axis
of said tubular member, said members being laterally spaced from
each other defining a ring shaped space therebetween, the flexible wall
portion spanning said space for the full peripheral extent thereof
and being sealingly secured to said two members.
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106 | FLUID CONDUIT IN CONSTANT COMMUNICATION WITH RELATIVELY ROTATABLE WORKING CHAMBER: |
This subclass is indented under the class definition. Apparatus comprising a working chamber having a fluid conduit
connected thereto, said working chamber being rotatable about its longitudinal
axis relative to said fluid conduit, the connection between said
working chamber and fluid conduit being so arranged as to allow constant
communication between said conduit and working chamber, irrespective
of the position of said working chamber relative to said conduit.
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107 | ANNULAR WORKING MEMBER OR ANNULAR LINEARLY EXTENDING CHAMBER THEREFOR: |
This subclass is indented under the class definition. Apparatus comprising (1) a ring shaped working member provided
with sealing portions along its inner and outer periphery for sealingly
engaging the spaced walls of a chamber formed between a pair of
fixed concentric members in which the ring shaped working member
is slidably disposed or (2) a longitudinally extending chamber for
receiving a ring shaped working member comprising a pair of relatively
fixed concentric members said members being spaced from each other
to provide a space therebetween.
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108 | . Axially extending hollow stem on working member: |
This subclass is indented under subclass 107. Apparatus in which the ring shaped working member is provided with an elongated portion extending in a direction parallel to the longitudinal axis of the ring, said portion being hollow and the dimension of the outer peripheral portion thereof being less than the dimension of the outer peripheral portion of the working member end face. | |
109 | PISTON WITH RIGID AXIALLY EXTENDING HOLLOW STEM: |
This subclass is indented under the class definition. Apparatus comprising a piston provided with an elongated
relatively slender tubular element extending axially therefrom and immovably
secured thereto.
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110 | . Hollow stem forms axially extending fluid passage: |
This subclass is indented under subclass 109. Apparatus in which the tubular element forms a conduit or
passage through which a fluid is conducted.
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111 | .. Plural laterally spaced passages: |
This subclass is indented under subclass 110. Apparatus in which the tubular element includes two or more separate and distinct passages spaced from each other in a direction perpendicular to the direction of the piston axis. | |
112 | .. Passage communicates with lateral port extending through piston side wall portion: |
This subclass is indented under subclass 110. Apparatus in which the piston is provided with a port opening through a side wall portion thereof, and said port is in open communication with the passage in the tubular element. | |
113 | . Relatively movable elongated part within stem: |
This subclass is indented under subclass 109. Apparatus including an elongated member which is movable
relative to the piston, at least a portion of said member being
positioned within the tubular element.
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114 | .. Part and stem relatively axially adjustable: |
This subclass is indented under subclass 113. Apparatus in which the member may be selectively moved in the direction of the axis of the tubular element and held in different axial positions relative thereto. | |
115 | ... Part forms actuator for piston side wall portion adjusting means: |
This subclass is indented under subclass 114. Apparatus in which the member forms an actuator for means
positioned within the body of the piston which means operates to
vary the dimension of the outer peripheral portion of the piston
side wall upon movement of said member relative to the tubular element.
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116 | WITH AXIALLY EXTENDING ELEMENT MOUNTED ON WORKING MEMBER FOR RELATIVE ROTARY MOVEMENT ONLY: |
This subclass is indented under the class definition. Apparatus including an elongated member extending axially of the working member, said member being secured to the working member in such a manner as to allow rotation of said member relative to the working member, but to prevent movement of such member in a direction either parallel to or laterally of the axis of said working member. | |
117R | MOVING CYLINDER: |
This subclass is indented under the class definition. Apparatus comprising a cylinder adapted to slidably receive
a piston therein, said cylinder being mounted for relative movement
with respect to a supporting structure, movement of said cylinder
relative to said supporting structure being responsive to or causing
the expansion or contraction of the expansible chamber.
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118 | . Pivoted: |
This subclass is indented under subclass 117. Apparatus comprising means mounting the cylinder on the
supporting structure for movement about a fixed axis.
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119 | .. With fluid conduit extending through pivoted connection: |
This subclass is indented under subclass 118. Apparatus in which the conduit or passage means for admitting
working fluid to the cylinder extends through the axis of said mounting means,
so that working fluid may be admitted to said cylinder continuously
irrespective of the position of the cylinder relative to the supporting
structure about said axis.
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117A | . Stationary piston or movable piston with moving cylinder |
This subclass has no definition. | |
120 | OSCILLATING WORKING MEMBER OR CYLINDER THEREFOR: |
This subclass is indented under the class definition. Apparatus comprising (1) a working member of the type designed
to move back and forth in an arcuate path of not more than 360 degrees
about a fixed axis or (2) a working chamber designed to receive
a working member of the type defined in section (1) of this definition.
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121 | . Oscillatory shaft with radially extending vane: |
This subclass is indented under subclass 120. Apparatus in which the working member comprises a blade-like member having a rotatably mounted shaft secured along one edge thereof for movement therewith and forming the means for transmitting mechanical power to or from said working member, the axis of said shaft forming the axis about which said blade-like member is adapted to move. | |
122 | .. Plural angularly related vanes: |
This subclass is indented under subclass 121. Apparatus comprising a second blade-like member having one edge thereof secured to the rotary shaft and extending outwardly therefrom in spaced angular relation with the other blade-like member. | |
123 | .. With lost motion connection between vane and shaft: |
This subclass is indented under subclass 121. Apparatus in which the connection between the shaft and the blade-like member provides for limited movement of the shaft relative to the blade-like member. | |
124 | .. With resiliently biased vane peripheral portion: |
This subclass is indented under subclass 121. Apparatus in which the blade-like member has a portion along the periphery thereof which is movable relative to other portions of said blade-like member, and spring means associated with said blade-like member for urging said portion away from said other portions. | |
125 | .. Vane includes non-metallic peripheral sealing portion: |
This subclass is indented under subclass 121. Apparatus in which the blade-like member is provided with a nonmetallic portion along the periphery thereof adapted to sealingly engage a working chamber wall portion. | |
126 | WITH DIFFERENTIAL RADIAL THRUST PRODUCING MEANS FOR WORKING MEMBER: |
This subclass is indented under the class definition. Apparatus comprising means associated with the working member
for exerting a force on the working member, or a major portion thereof,
in a direction transverse to the longitudinal axis of the working
member to oppose a transverse force exerted on the working member
during the normal functioning of the apparatus of which the working
member is a part.
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127 | . Fluid pressure type: |
This subclass is indented under subclass 126. Apparatus in which said force exerting means comprises a fluid under pressure, and means are provided to direct or conduct said pressure fluid between a side wall portion of the working member and the adjacent wall of the working chamber containing said working member. | |
128 | WITH ASSEMBLY OR DISASSEMBLY FACILITATING MEANS: |
This subclass is indented under the class definition. Apparatus comprising means designed to facilitate the removal
or replacement of a part of an expansible chamber device.
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129 | ABUTMENT CONNECTION BETWEEN WORKING MEMBER AND POWER TRANSMISSION ELEMENT: |
This subclass is indented under the class definition. Apparatus comprising a working member and a rigid power
transmission element positioned for movement therewith, said element being
unsecured to the working member (i.e., capable of movement with
respect thereto) and adapted to be abutted thereby.
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130R | WITH SEPARATE BIASING MEANS FOR WORKING MEMBER: |
This subclass is indented under the class definition. Apparatus including a separate means other than the working
fluid associated with the working member for continuously exerting
a force in one direction of movement of the working member.
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131 | . Biasing means maintains working member intermediate stroke end limits: |
This subclass is indented under subclass 130. Apparatus in which the working member is normally maintained in a position intermediate the ends of the working chamber by said force exerting means, so that upon removal of the force exerted to move the working member in the operation of the expansible chamber device, the working member is returned to such position by said force exerting means. | |
132 | . Tension spring: |
This subclass is indented under subclass 130. Apparatus in which the force exerting means comprises a spring device, said spring device being so related to the working member that movement of the working member responsive to the action of working fluid or a mechanical force to effect normal operation of the working member causes said spring device to be extended from its normal position of equilibrium, so that upon removal of such force, the spring contracts to effect the return movement of said working member. | |
133 | . Adjustable: |
This subclass is indented under subclass 130. Apparatus in which the amount of force exerted by said force
exerting means on the working member may be selectively increased or
decreased.
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134 | . Fluid spring: |
This subclass is indented under subclass 130. Apparatus in which the force exerting means comprises a
body of confined compressible fluid.
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135 | . Biasing means engages working fluid contacting portion of working member: |
This subclass is indented under subclass 130. Apparatus in which the force exerting means includes a portion thereof in force transmitting engagement with the working member end face. | |
130A | . Bias normally held inoperative by fluid pressure |
This subclass has no definition. | |
130B | . Bias other than coil spring |
This subclass has no definition. | |
130C | . Bias external of both expanding and contracting chamber |
This subclass has no definition. | |
130D | . Plural coil springs |
This subclass has no definition. | |
136 | WITH TOOTHED GEAR, SPLINE OR THREAD RIGID WITH WORKING MEMBER: |
This subclass is indented under the class definition. Apparatus including means forming a part of the working
member for engagement with a relatively movable element, said means comprising
(1) a spline extending longitudinally of the working member, (2)
gear teeth or (3) a thread.
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137 | WITH FLEXIBLE TRANSMISSION ELEMENT SECURED TO WORKING MEMBER: |
This subclass is indented under the class definition. Apparatus including a flexible elongated element secured
to the working member and movable with the working member, said
elongated element functioning as a means for transmitting power
to or from said working member.
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138 | WITH LINKAGE OR TRANSMISSION ENGAGING PORTION INTERMEDIATE SPACED WORKING MEMBER END FACES: |
This subclass is indented under the class definition. Apparatus comprising a working member having a pair of axially
spaced end faces, and a portion located between and rigidly secured
to said end faces, said portion having means formed thereon to engage
with a mechanical motion converting linkage or power transmission
member.
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139 | WITH CYLINDER WALL CONTACTING GUIDE ARTICULATED TO PISTON: |
This subclass is indented under the class definition. Apparatus comprising a piston type working member, adapted to reciprocate within a cylinder, said piston type working member being provided with a member pivotally secured thereto and extending coaxially therewith, said member being slidably engageable with the walls of the cylinder in which the piston reciprocates to guide the piston in its movement in the cylinder. | |
140 | WITH LINKAGE OR TRANSMISSION HAVING RELATIVELY MOVABLE MEMBERS: |
This subclass is indented under the class definition. Apparatus including means for transmitting a force to or
from a working member, said means comprising a plurality of mechanically interconnected
members which are movable relative to each other, one of said members being
connected for movement with the working member.
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141 | WITH SEPARABLE FLUID DEFLECTING SHIELD OR BAFFLE ON WORKING MEMBER: |
This subclass is indented under the class definition. Apparatus including a plate-like member detachably secured to a portion of the working member, said plate-like member being for the purpose of diverting a fluid away from some part of the expansible chamber device, or a part associated with the expansible chamber device. | |
142 | WITH RESERVOIR FOR NON-COMPRESSIBLE WORKING FLUID: |
This subclass is indented under the class definition. Apparatus comprising a chamber associated with the expansible
chamber device, said chamber being separate from that portion of
the working chamber traversed by the working member and being in
open communication therewith and forming a storage space for a noncompressible
liquid type working fluid when said fluid is not in that portion
of the working chamber traversed by said working member.
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143 | WITH MOVEMENT DAMPING MEANS (E.G., FLUID FLOW RESTRICTOR): |
This subclass is indented under the class definition. Apparatus comprising means associated with the expansible
chamber device to (1) resist or slow down the movement of the working
member or (2) absorb shock or vibration incident to the operation
of the expansible chamber device.
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144 | WITH ENCOMPASSING HEAT EXCHANGE MODIFYING SPACE OR JACKET: |
This subclass is indented under the class definition. Apparatus comprising a working chamber forming member provided
with a housing, spaced from and enclosing the outer wall thereof
to form a space between said structure and outer wall which space
is designed to (1) form a jacket for circulating a heat exchange fluid
therein or (2) form an insulating space to reduce the flow of heat
to or from the working chamber through the walls of said member.
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145 | COMBINED: |
This subclass is indented under the class definition. Apparatus in combination with features other than working
fluid conducting or admitting means, working chamber supporting
or retaining means, working member sealing, guiding or movement
facilitating means, or mechanical motion converting means articulated
to a working member and not provided for above.
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146 | PLURAL UNITARILY MOUNTED CYLINDERS OR FRAME THEREFOR (161): |
This subclass is indented under the class definition. Apparatus comprising (1) two or more cylinders adapted to
receive reciprocatory working members, said cylinders being rigidly secured
together in a unitary structure, or (2) a frame or support having
means associated therewith for rigidly securing two or more cylinders
together.
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147 | . With casing or support for rotary shaft: |
This subclass is indented under subclass 146. Apparatus including means to enclose or support a mechanical
motion converting linkage including a rotary shaft, said means being
rigidly secured to the cylinder supporting means to form a unitary
structure therewith.
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148 | .. Three or more radially arranged cylinders: |
This subclass is indented under subclass 147. Apparatus comprising three or more cylinders arranged with
the axes thereof lying in angularly related planes which intersect
at a common line.
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149 | .. V-type: |
This subclass is indented under subclass 147. Apparatus in which a pair of cylinders are positioned with the axis thereof lying in angularly related planes, said planes extending at an angle of less than 180 degrees relative to each other. | |
150 | .. Coaxial cylinder (151): |
This subclass is indented under subclass 147. Apparatus in which the cylinders are positioned end to end and have a common longitudinal axis. | |
151 | . Coaxial cylinders (150): |
This subclass is indented under subclass 146. Apparatus in which the cylinders are positioned end to end
and have a common longitudinal axis.
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152 | .. With different cross-sectional areas: |
This subclass is indented under subclass 151. Apparatus in which the cross sectional area of a first of said cylinders is smaller than the cross sectional area of a second of said cylinders. | |
153 | WITH LUBRICATING MEANS: |
This subclass is indented under the class definition. Apparatus including (1) means to, apply, direct or conduct
a substance to a location between relatively movable parts of an
expansible chamber device designed to reduce the friction between
said parts or (2) means forming a part of an expansible chamber
device, which means is formed of a material which is normally applied
between relatively movable elements to reduce the friction between
said elements.
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154 | . Lubricant entrained by working fluid: |
This subclass is indented under subclass 153. Apparatus in which the lubricant is picked up or collected
and carried along by working fluid which is entering or being exhausted
from the expansible chamber.
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155 | . Portion of expansible chamber device includes solid lubricating material: |
This subclass is indented under subclass 153. Apparatus in which a part of the expansible chamber device which is in slidable engagement with another part of such device is formed of material which inherently performs a lubricating function. | |
156 | . Valve means in lubricant passage: |
This subclass is indented under subclass 153. Apparatus comprising a passage through which lubricant is adapted to flow and means associated with said passage capable of being operated to selectively open or close said passage. | |
157 | . Lubricant passage extends axially through articulated piston rod: |
This subclass is indented under subclass 153. Apparatus in which a piston is provided with a connecting rod pivotally connected thereto, said rod having an axially extending passage means through which lubricant is conveyed between a lubricant source and a portion of the piston. | |
158 | . Piston has lubricant retaining or conducting means: |
This subclass is indented under subclass 153. Apparatus comprising a piston provided with means for (1)
holding or storing lubricant or (2) conveying or guiding lubricant
from one location on the piston to another location thereon.
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159 | .. Pocket or chamber: |
This subclass is indented under subclass 158. Apparatus in which said means includes a cavity, trough,
or other means which forms a part of the piston and acts as a reservoir
for the lubricant.
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160 | .. Port or passage extending through side wall portion: |
This subclass is indented under subclass 158. Apparatus in which said means comprises a passage or port which extends completely through a portion of the side wall of the piston so that there is an unobstructed opening from the piston outer periphery to the interior of the piston. | |
161 | WITH SUPPORT OR FRAME (146): |
This subclass is indented under the class definition. Apparatus including a base, bracket, standard or framework
to which a cylinder or other working chamber forming means of an expansible
chamber device is secured to be supported in operative position.
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161.5 | . Wheel supported: |
This subclass is indented under subclass 161. Apparatus in which the base, bracket, standard or framework
is particularly adapted to be connected to or cooperate with a vehicle
wheel.
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162R | SPACED CYLINDER AND PISTON WALLS DEFINE PASSAGE BETWEEN OPPOSED PISTON SIDE WALL ENDS: |
This subclass is indented under the class definition. Apparatus comprising a cylinder and a piston reciprocally
mounted therein, and in which a relatively small unobstructed space
or passage is provided between the side wall of the piston and the
adjacent cylinder wall, said space or passage extending from one
end of the piston side wall portion to the opposite end thereof
to allow working fluid to flow from the chamber formed at one end
of the piston side wall portion to the chamber formed at the opposite
end thereof.
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162P | . Passage in piston |
This subclass has no definition. | |
163 | FLUID CONDUIT OR PORT IN FIXED WALL OF WORKING CHAMBER: |
This subclass is indented under the class definition. Apparatus comprising a passage or port adapted to conduct
and permit the entry or exhaust of fluid to or from the working
chamber of the expansible chamber device, said passage or port not
being in the movable wall portion of said chamber.
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164 | . Port in separable chamber end closure: |
This subclass is indented under subclass 163. Apparatus in which the working chamber is provided with a removable end closure member, the port or passage being located in said member. | |
165R | WITH GUIDE OR SEAL ON CYLINDER END PORTION FOR PISTON OR MEMBER MOVED BY PISTON: |
This subclass is indented under the class definition. Apparatus including means formed on an end portion of a
cylinder, and being engageable with the piston or a member moved
by the piston, said means being effective to (1) constrain said
piston or member to a predetermined path of movement or (2) provide
a sealing means between the inside of the cylinder and the outside
thereof.
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166 | . Additional guide is spaced chamber end wall: |
This subclass is indented under subclass 165. Apparatus comprising a second guide means positioned in the end of the cylinder opposite the end containing said first guide means. | |
167 | . Guide movable laterally: |
This subclass is indented under subclass 165. Apparatus in which the guide means is so related to the cylinder end portion as to be movable relative to the cylinder in a direction perpendicular to the direction of the longitudinal axis of the cylinder. | |
168 | . Non-metallic seal means between piston or member and end portion: |
This subclass is indented under subclass 165. Apparatus comprising a nonmetallic sealing element between
the cylinder end portion and the piston or element moved by the
piston.
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165PR | . Prevent rotation |
This subclass has no definition. | |
169.1 | CYLINDER DETAIL: |
This subclass is indented under the class definition. Apparatus comprising particulars of a cylinder.
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169.2 | . With reinforcing member: |
This subclass is indented under subclass 169.1. Apparatus including structure specifically provided for (a) increasing the rigidity of the cylinder, or (b) strengthening the cylinder, or (c) bypassing the effect of pressure deformation on the cylinder to a cylinder mounting structure. | |
169.3 | .. Extending through working member: |
This subclass is indented under subclass 169.2. Apparatus wherein the structure of the reinforcing structure comprises a member extending through the working member. | |
169.4 | ... Coaxial sleeve or tube: |
This subclass is indented under subclass 169.2. Apparatus wherein the structure is the reinforcing structure comprises a member extending parallel and concentrically with the working member. | |
170.1 | . Nonmetallic piston contacting portion: |
This subclass is indented under subclass 169. Apparatus, including a nonmetallic portion of the cylinder
adapted to slidably contact a piston.
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171.1 | . Cylinder or liner retained in casing by casing closure or closure associated means: |
This subclass is indented under subclass 169. Apparatus comprising a casing and a cylinder or liner positioned within said casing to be encompassed thereby, and a removable closure for closing an end of the casing, said cylinder or liner being secured in said casing by the closure member, or by means which cooperate with the closure member. | |
172 | PISTON: |
This subclass is indented under the class definition. Apparatus comprising a piston as defined in the Glossary
of the class definition.
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173 | . With rotation imparting fluid impinging surface on piston part: |
This subclass is indented under subclass 172. Apparatus including a surface on the piston positioned to
be contacted by the working fluid, said surface being so shaped
that contact of the working fluid therewith effects either a rotary
movement of said piston about its longitudinal axis or a rotary
movement of the body of working fluid about an axis coinciding with the
longitudinal axis of the piston.
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174 | . Liquid between axially spaced side wall portions: |
This subclass is indented under subclass 172. Apparatus in which the piston includes a pair of axially
spaced rigid side wall portions and a body of liquid positioned
between said spaced portions for direct engagement with such chamber
wall when said piston is in operative position.
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175 | . Spaced faces joined by rigid stem (e.g., spool): |
This subclass is indented under subclass 172. Apparatus in which the piston includes a pair of axially
spaced portions each of which includes an end face and a side wall,
said spaced portions being rigidly joined by a portion of smaller
peripheral extent than the spaced portions.
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176 | . With enclosed insulating space in piston part: |
This subclass is indented under subclass 172. Apparatus in which the piston is provided with a sealed
space in a portion thereof for the purpose of modifying the heat
exchange properties of said piston portion.
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177 | . Non-circular: |
This subclass is indented under subclass 172. Apparatus in which the peripheral portion of the piston
at the end thereof containing the end face portion has a shape in
transverse cross section other than circular.
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178 | . With ball or roller anti-friction means on side wall portion: |
This subclass is indented under subclass 172. Apparatus including a ball or roller bearing means mounted
on the piston for engagement with a working chamber wall when the
piston is in operative position.
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179 | . Articulated connecting rod end forms portions of piston face: |
This subclass is indented under subclass 172. Apparatus in which the piston is provided with a rod adapted to transmit motion between the piston and a relatively movable member, said rod being pivotally mounted on the piston and having the end thereof which is joined to the piston in direct communication with working fluid when the piston is in operative position in a working chamber. | |
181R | . With fluid passage in piston face: |
This subclass is indented under subclass 172. Apparatus in which the piston is provided with a fluid conducting
port or passage extending from the end face thereof through a portion
of the piston and (1) communicating with a cavity in the piston
for which the port or passage forms a restricted opening or (2)
extending through a wall of the piston other than the end face (3)
communicating with a cavity in the piston having a wall which is
radially movable and forming a side wall portion of the piston.
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182 | .. Passage communicates with packing receiving recess: |
This subclass is indented under subclass 181. Apparatus in which the port or passage communicates with a cavity in the piston, said cavity having a wall thereof which is radially movable and forming a side wall portion of the piston. | |
183 | ... Valved: |
This subclass is indented under subclass 182. Apparatus in which the port or passage is provided with
valve means for controlling the flow of fluid through the port or
passage.
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184 | ... Passage in opposed piston faces: |
This subclass is indented under subclass 182. Apparatus in which the piston is provided with opposed end faces each of which is provided with a fluid port or passage. | |
185 | .... Passages communicate with common packing receiving recess: |
This subclass is indented under subclass 184. Apparatus in which the ports or passages in the opposed end faces communicate with the same cavity. | |
181P | .. Passage thru piston to opposite chamber |
This subclass has no definition. | |
186 | . With ported chamber in piston part for circulating heat exchange fluid: |
This subclass is indented under subclass 172. Apparatus in which the piston is provided with a chamber
having a restricted opening for communicating such chamber with
a source of heat exchange fluid.
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187 | . With separable means for pivotally mounting connecting rod to piston: |
This subclass is indented under subclass 172. Apparatus including a member joined to the piston by means
which allow separation of said member from the piston without in
any way destroying or permanently deforming the piston or member
or the means joining said piston and member together, said member
forming a support or bearing member for pivotally mounting a connecting
rod to the piston.
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188 | .. Means retained by annulus positioned about piston periphery: |
This subclass is indented under subclass 187. Apparatus in which the means for securing the member to the piston comprises a ring-shaped element positioned about the outer periphery of the piston and forms a side wall portion thereof. | |
189 | .. Piston formed of separable end face and side wall portion: |
This subclass is indented under subclass 187. Apparatus in which the piston is formed of separate end face and side wall forming portions and in which such portions are secured together by means which allow separation of said portions without, in any way, destroying or permanently deforming the end face or side wall forming portions or the means securing said portions together. | |
190 | ... Means secures end face portion to side wall portion: |
This subclass is indented under subclass 189. Apparatus in which the means for pivotally mounting the connecting rod to the piston forms the means which secures the end face and side wall portions together. | |
191 | .. Fastener for separable means extends through end face portion: |
This subclass is indented under subclass 187. Apparatus in which the means for joining the member to the piston extends through the end face portion. | |
192 | . Plural integral radially extending resilient metallic sealing tongues on side wall portion: |
This subclass is indented under subclass 172. Apparatus in which the side wall portion of the piston is
provided with a plurality of axially spaced relatively thin flexible
metallic tongue-like members extending circumferentially and radially
with respect to the piston axis, said tongue-like members being
formed as an integral part of the side wall portion and the outer ends
thereof forming the outer peripheral extent of the piston side wall
portion.
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193 | . With spring means for biasing side wall portion radially: |
This subclass is indented under subclass 172. Apparatus in which the piston is provided with a side wall
portion which is movable radially with respect to the piston axis,
and a separate spring device is provided for exerting a force against
said portion of urging the same in such radial direction.
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194 | .. Biased portion comprises peripheral axially extending flexible lip: |
This subclass is indented under subclass 193. Apparatus in which the radially movable side wall portion
comprises a lip made of flexible material extending around the periphery
of this piston and in a direction axially of the piston, and the
spring device exerts a force on said lip for urging the same in
a radial direction.
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195 | .. Open ended hollow skirt comprises biased portion: |
This subclass is indented under subclass 193. Apparatus in which the radially movable side wall portion is, or is a part of an elongated hollow tubular skirt-like member closed at one end by the end face portion and being open at the opposite end. | |
196 | ... Spring part positioned in skirt slit: |
This subclass is indented under subclass 195. Apparatus in which the hollow tubular skirt-like member is provided with a slit in the wall thereof extending from the open end in a direction toward the closed end thereof and in which the spring device is positioned in the slit. | |
197 | ... Adjustable bias (199): |
This subclass is indented under subclass 195. Apparatus in which the force exerted by the spring device
may be selectively increased or decreased.
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198 | ... Split annular type spring (200): |
This subclass is indented under subclass 195. Apparatus in which the spring device comprises a discontinuous
ring-like element made of resilient material, a substantial portion
of the periphery of said element being in force exerting engagement
with the interior surface of the skirt.
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199 | .. Adjustable bias (197): |
This subclass is indented under subclass 193. Apparatus in which the force exerted by the spring device
may be selectively increased or decreased.
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200 | .. Split annular type spring (198): |
This subclass is indented under subclass 193. Apparatus in which the spring device comprises a discontinuous
ring-like element made of resilient material.
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201 | . Radially adjustable side wall portion: |
This subclass is indented under subclass 172. Apparatus in which means are provided to move and hold a
side wall portion of the piston to different positions laterally
of the piston axis to vary the peripheral extent of the piston.
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202 | .. Adjustable portion comprises open-ended hollow skirt: |
This subclass is indented under subclass 201. Apparatus in which the adjustable portion comprises a hollow tubular skirt-like member secured at one end to the end face portion and extending in a direction opposite from the end face, said skirt-like member being open at one end and being closed at the opposite end by the end face portion. | |
203 | ... Adjustment effected by wedge member movable relative to skirt (207): |
This subclass is indented under subclass 202. Apparatus in which the means for effecting lateral movement
of the skirt-like member comprises an element having a bevelled
surface, said element being movable relative to said skirt-like
member.
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204 | .. Adjustment effected by selectively removable spacer or skim element between relatively movable parts: |
This subclass is indented under subclass 201. Apparatus in which the means for effecting the radial adjustment of the side wall portion includes a spacer or shim element positionable between relatively movable parts of the piston and which may be optionally inserted between said parts or removed therefrom to effect such adjustment. | |
205 | .. Side wall portion positioned between relatively axially adjustable rigid end members: |
This subclass is indented under subclass 201. Apparatus in which the side wall portion is positioned between and in contact with a pair of rigid axially spaced end members, said end members being capable of being moved and held to different positions toward or away from each other, movement of said end members effecting lateral movement of the side wall portion. | |
206 | ... With beveled abutting surfaces between side wall portion and an end member: |
This subclass is indented under subclass 205. Apparatus in which the surfaces of one of said rigid end members and side wall portion at the point of contact between said member and portion are beveled. | |
207 | .. Adjustment effected by wedge member movable relative to side wall portion (203): |
This subclass is indented under subclass 201. Apparatus in which the means for effecting lateral movement
of the side wall portion comprises an element having a beveled surface
and being movable relative to said side wall portion, so that movement
of said element relative to the side wall portion effects lateral
movement of said portion.
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208 | . Open-ended hollow skirt type (e.g., trunk type): |
This subclass is indented under subclass 172. Apparatus in which the peripheral portion of the piston includes a hollow tubular skirt-like member secured to and extending in a direction opposite from the end face portion, said skirt-like member being open at one end thereof and being closed at the opposite end by said end face portion. | |
209 | .. Frusto conical skirt: |
This subclass is indented under subclass 208. Apparatus in which the skirt-like member is frusto-conical in shape. | |
210 | .. With weight balancing means: |
This subclass is indented under subclass 208. Apparatus including means adapted to be added to or removed
from the piston to vary the weight of the piston for the purpose
of (1) equalizing the weight of the piston with respect to another
piston with which the piston is to be associated or (2) equalizing
the weight of a portion of the piston with respect to another portion
of the piston.
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211 | .. Element of diverse material extending through skirt wall abuts circumferentially extending resilient ring: |
This subclass is indented under subclass 208. Apparatus in which the piston is provided with a circumferentially
extending expansible ring positioned in a groove on the outer periphery
of the skirt-like member, and a substantially rigid elongated member
formed of material which is different from the material which forms
the skirt-like member, said member extending diametrically across
the interior of the skirt-like member and having an end thereof
extending through an opening in the wall of the skirt-like member
and abutting against said ring.
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212 | .. With nonmetallic portion: |
This subclass is indented under subclass 208. Apparatus in which the piston includes as an element thereof
a portion which is formed of material other than metal.
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213 | .. End face surface includes areas of diverse material: |
This subclass is indented under subclass 208. Apparatus in which the end face surface is provided with a portion made of material which is different from the material which forms another portion of said end face. | |
214 | .. Spaced wall skirt: |
This subclass is indented under subclass 208. Apparatus in which the skirt-like member is formed at a portion thereof extending for the full perimetric extent thereof with a pair of walls which are spaced from each other. | |
215 | .. Separate resilient elements secures end face portion to skirt portion: |
This subclass is indented under subclass 208. Apparatus comprising independent end face and skirt portions,
said portions being secured together by means of a separate fastening
element in the form of a spring-like device for effecting a resiliently
movable connection between said end face and skirt portions.
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216 | .. Plural separable parts: |
This subclass is indented under subclass 208. Apparatus in which the piston is formed of a plurality of
parts or sections, joined together by means which allow separation
of the parts from each other without in any way destroying or permanently
deforming any of the parts or the means for joining the parts.
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217 | ... Interconnected by relative rotation of parts: |
This subclass is indented under subclass 216. Apparatus in which the parts are provided with cooperating interengaging portions such that the rotation of one of the parts relative to the other will cause engagement of said interengaging portions to detachably secure the parts together. | |
218 | .... With means to prevent relative rotation of parts: |
This subclass is indented under subclass 217. Apparatus including a separate element interengaging between the relatively rotatable piston parts, said element when in operative interengaging position being effective to prevent relative rotation between the parts. | |
219 | ... Interconnected without separate fastening means: |
This subclass is indented under subclass 216. Apparatus in which separable parts of the piston are so interfitted or related as to remain joined in operative relation to one another without the addition of a connecting or fastening member which is intended to be entirely detached from the parts when the parts are disconnected. | |
220 | ... Threaded fastener: |
This subclass is indented under subclass 216. Apparatus in which the parts are secured together by means of a separate threaded fastener member. | |
221 | .... Fastener extends through end face: |
This subclass is indented under subclass 220. Apparatus in which the threaded fastener is in the form
of a bolt or screw which extends through the end face portion of
the piston, and in which the head of such bolt or screw is accessible
from the side of the end face portion which constitutes the pressure
receiving surface of the piston.
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222 | .. Specific or diverse material; or welded, brazed or soldered joint: |
This subclass is indented under subclass 208. Apparatus in which the piston or a portion thereof is composed
of (1) two or more different materials (2) a single material which
has been treated to provide portions of the piston with specific
properties which are different from the properties of another portion
thereof (3) a specific material or (4) a welded brazed or soldered
joint.
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223 | ... Coated: |
This subclass is indented under subclass 222. Apparatus in which one of the materials is in the form of
a thin layer of metal applied to the surface of the end face or
skirt-like member of the piston and which forms a unitary part thereof.
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224 | ... End face and skirt periphery of diverse material: |
This subclass is indented under subclass 222. Apparatus in which the end face portion of the piston is
formed of material which is different from the material forming
a major portion of the outer peripheral portion of the skirt-like member.
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225 | ... Element of diverse material for limiting radial movement of skirt part: |
This subclass is indented under subclass 222. Apparatus in which the piston is provided with an element
formed of material other than the material forming the skirt-like
member, said element being positioned in engagement with a skirt
portion, and being effective to restrain movement of said skirt
portion in a direction normal to the longitudinal axis of the piston.
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226 | .... Bi-metallic restraining element: |
This subclass is indented under subclass 225. Apparatus in which the element is in the form of a laminated plate-like member in which the different laminae are composed of different metals. | |
227 | .... Element positioned about periphery of skirt: |
This subclass is indented under subclass 225. Apparatus in which the element is in the form of a ring positioned about the skirt-like member and forming a portion of the outer periphery of the skirt-like member. | |
228 | .... Element portion embedded in piston part: |
This subclass is indented under subclass 225. Apparatus in which the element is secured to the piston by having a portion thereof embedded in a part of the piston in such a way that removal of the member would require a distortion or deformation of such element or piston part. | |
229 | ..... Annular element: |
This subclass is indented under subclass 228. Apparatus in which the element comprises a ring-like member.
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230 | ...... Element encircles connecting rod pin supporting boss: |
This subclass is indented under subclass 229. Apparatus in which the axis of the ring-like member extends transversely to the longitudinal axis of the piston and is positioned to encircle a projection on the piston which forms the supporting bearing for a transversely extending piston rod connecting pin. | |
231 | ... Welded, brazed or soldered (260): |
This subclass is indented under subclass 222. Apparatus comprising a welded, brazed or soldered joint.
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232 | .. Spaced skirt parts jointed by resilient arcuate web: |
This subclass is indented under subclass 208. Apparatus in which the skirt-like member is provided with a slit or other separation along the periphery thereof forming a pair of spaced skirt portions, and means to bridge the space between said portions comprising an inwardly bent web or corrugation formed from the material of the skirt-like member, said web or corrugation being resilient to allow relative movement between said skirt portions. | |
233 | .. Oval-shaped skirt portion: |
This subclass is indented under subclass 208. Apparatus in which the cross sectional shape of the skirt-like
member for a major portion of its longitudinal dimension is elliptical.
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234 | .. Skirt includes slit: |
This subclass is indented under subclass 208. Apparatus in which the skirt-like member is provided with
an elongated relatively narrow aperture extending through the wall
thereof normally for allowing relative movement between the parts
of the skirt-like member adjacent the aperture.
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235 | ... Slit transverse to skirt axis: |
This subclass is indented under subclass 234. Apparatus in which the elongated relatively narrow aperture extends circumferentially of the skirt-like member in a direction normal to the longitudinal axis of the piston. | |
236 | .... With additional angularly related slit: |
This subclass is indented under subclass 235. Apparatus including another elongated relatively narrow aperture extending in a direction which lies at an angle to the direction of the first aperture. | |
237 | .. Circumferentially spaced portions at free end of skirt: |
This subclass is indented under subclass 208. Apparatus in which the free end of the skirt-like member
has parts which are circumferentially spaced from each other.
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238 | .. Connecting rod pin supporting boss laterally spaced from skirt portion: |
This subclass is indented under subclass 208. Apparatus in which the piston is provided with an apertured connecting rod pin support portion, all parts of said support portion being located within the hollow skirt-like member and radially spaced from the inner periphery of the skirt-like member portion which lies immediately adjacent said connecting rod pin support portion. | |
239 | .. With rib or strut means on piston part: |
This subclass is indented under subclass 208. Apparatus in which the end face or the skirt portion is provided with (1) a projecting formation in the form of a rib or corrugation or (2) a rigid member secured to an end face and a skirt portion. | |
240 | . Side wall portion includes peripheral axially extending flexible lip: |
This subclass is indented under subclass 172. Apparatus in which the piston includes around the periphery
thereof a lip made of flexible material and extending in a direction
axially of the piston, said lip being adapted to be in direct contact
with working fluid to be urged in a radial direction thereby when
the piston is in operative position in a working chamber.
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241 | .. With embedded reinforcing means in lip portion (254): |
This subclass is indented under subclass 240. Apparatus including an element of a material other than
the material forming the lip, said element being embedded in the
axially extending lip for reinforcing the same.
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242 | .. Plural axially spaced lips: |
This subclass is indented under subclass 240. Apparatus comprising a plurality of peripheral axially extending
flexible lips, said lips being spaced one from the other in a direction extending
along the piston axis.
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243 | ... Oppositely facing: |
This subclass is indented under subclass 242. Apparatus in which the spaced lips extend in opposite directions axially of the piston. | |
244 | .... Lips formed on separable elements: |
This subclass is indented under subclass 243. Apparatus in which each of the axially spaced oppositely facing lips is formed on separate independent members, which members are secured together by means which allow separation of the members from each other without in any way destroying or permanently deforming the members or the means for forming the members. | |
245 | .. Lip forms peripheral portion of imperforate cup shaped element: |
This subclass is indented under subclass 240. Apparatus comprising a cup-shaped element formed of flexible material having an imperforate planar portion forming the bottom of the cup and in which the peripheral lip forms the side wall of the cup. | |
246 | .. Metallic lip: |
This subclass is indented under subclass 240. Apparatus in which the flexible lip is formed of metallic
material.
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247 | . Fluid pressure responsive axial movement of end face portion radially moves side wall portion: |
This subclass is indented under subclass 172. Apparatus in which the piston comprises a pair of spaced
relatively axially movable rigid members one of which comprises
the end face portion, and a radially movable element forming a side
wall portion of the piston interposed between said members so that
axial movement of said end face portion relative to said other rigid
member responsive to the pressure of working fluid acting on said
end face portion causes radial movement of said element.
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248 | . Nonmetallic portion: |
This subclass is indented under subclass 172. Apparatus in which the piston includes a portion made of
nonmetallic material.
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249 | .. Flexible: |
This subclass is indented under subclass 248. Apparatus in which the nonmetallic material is of a type
which is pliable.
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250 | ... Flexible side wall portion between separable axially spaced rigid members: |
This subclass is indented under subclass 249. Apparatus in which the pliable nonmetallic portion forms a side wall portion and is interposed between a pair of axially spaced relatively axially movable separate rigid elements. | |
251 | .... Wall portion comprises plural axially aligned flexible elements: |
This subclass is indented under subclass 250. Apparatus in which the flexible nonmetallic portion comprises two or more separate independent elements extending in axially aligned relation. | |
252 | ..... Three or more elements: |
This subclass is indented under subclass 251. Apparatus in which the pliable nonmetallic portion comprises three or more separate independent axially aligned pliable nonmetallic elements. | |
253 | ... Axially spaced flexible side wall forming elements with interposed rigid spacer member: |
This subclass is indented under subclass 249. Apparatus in which the flexible portion forms a side wall
portion of the piston and includes a pair of axially spaced flexible
elements having a nonflexible member interposed between said elements.
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254 | ... With imbedded reinforcing means (241): |
This subclass is indented under subclass 249. Apparatus including means formed of a material other than
the material forming the flexible nonmetallic portion of the piston,
said means being embedded in the flexible nonmetallic portion for
reinforcing the same.
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255 | . Plural separable parts: |
This subclass is indented under subclass 172. Apparatus in which the piston is formed of a plurality of
members joined together by means which allow separation of the parts
from each other without in any way destroying or permanently deforming
any of the members or the means for joining the parts.
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256 | .. Fastening means for parts include resilient element: |
This subclass is indented under subclass 255. Apparatus in which the members are secured together by means
of a separate fastening element in the form of a spring-like device
for effecting a resiliently movable connection between the members.
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257 | .. Side wall portion interposed between separable axially spaced rigid members: |
This subclass is indented under subclass 255. Apparatus comprising a side wall forming portion and two
axially spaced rigid members, said side wall forming portion being
interposed between said members, said members being detachably secured
together.
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258 | ... Rigid members connected by coaxial rigid stem or rod: |
This subclass is indented under subclass 257. Apparatus in which the means for detachably securing the members together comprises a rigid elongated stem or rod, the axis of which coincides with the axis of the members. | |
259 | .. Side wall portion and relatively movable piston part having abutting inclined surfaces: |
This subclass is indented under subclass 255. Apparatus in which the piston includes a side wall portion
which abuts and is movable relative to another part, the abutting
surfaces of said side wall portion and the other part being bevelled.
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260 | . Welded, brazed or soldered (231): |
This subclass is indented under subclass 172. Apparatus comprising a welded, brazed or soldered joint.
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261 | MISCELLANEOUS (E.G., CRANKCASE): |
This subclass is indented under the class definition. Subject matter not provided for in other subclasses.
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FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
This subclass has no definition. | |
DIG1 | BEARING ON PISTON OR CYLINDER |
This subclass has no definition. | |
DIG2 | FLUID BEARING |
This subclass has no definition. | |
DIG3 | FLEXIBLE DRIVE |
This subclass has no definition. | |
DIG4 | LOST MOTION |
This subclass has no definition. | |