F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
188/157
F16D 55/02 (2006.01) B60T 17/08 (2006.01) F16D 65/56 (2006.01)
Patent
CA 1229052
ACTUATORS FOR DISC BRAKE CALIPERS ABSTRACT OF THE DISCLOSURE An actuator for a disc brake caliper comprises a spring operable piston for applying pressure to the disc brake caliper when rendered effective through a self adjusting lead screw, one end of which is friction coupled to the piston to prevent rotation of the lead screw when the brakes are applied. A manual release screw is threaded through the piston to bear against the head of the lead screw through an anti-friction bearing when manual release is desired to at least partially release pressure of the piston on the head of the lead screw through the friction coupling to permit slippage in the fric- tion coupling connection between the piston and the head of the lead screw and cause the piston to rotate the lead screw in a direction to permit release of the brakes. REFERENCE TO PRIOR ART This invention is related to U.S. prior patents, No.s 3,833,095, and 4,018,140, assigned to the same assignee as the present invention, and U.S. Patent No. 4399,894.
475455
Borden Ladner Gervais Llp
General Signal Corporation
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