US PATENT SUBCLASS 192 / 70.23
.~.~.~ With cam or wedge contacting clutch-element or pressure plate for axial movement thereof


Current as of: June, 1999
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192 /   HD   CLUTCHES AND POWER-STOP CONTROL

30 R  DF  CLUTCHES {15}
66.1  DF  .~ Axially engaging {5}
70.11  DF  .~.~ Interposed, mating clutch-elements {10}
70.23.~.~.~ With cam or wedge contacting clutch-element or pressure plate for axial movement thereof {1}
70.24  DF  .~.~.~.~> By cam surface on bell-crank


DEFINITION

Classification: 192/70.23

(under subclass 70.11) Device provided with means for moving a member along said axis wherein the member-moving means includes a movable component having a surface in sliding engagement with a surface portion of a member or of a pressure plate, the component surface and the member or plate surface being so related and contoured that movement of the component in a predetermined direction is converted into axial movement of the member or pressure plate.

(1) Note. A device is proper for this subclass (70.23) even if sliding friction between the cam surfaces is reduced by use of a roller at the area of contact between the cam and the clutch-element or pressure plate.

(2) Note. The movement of the component is usually oscillation in the case of a cam, and reciprocation (often in a radial direction) in the case of a wedge.

(3) Note. A device is proper for this subclass (70.23) if its cam or wedge contacts a cam surface on a flywheel that has an engaging surface equivalent to a clutch-element surface.