Cam actuated drum brake

Details Cam actuated drum brake Cam actuated drum brake

2007-01-25

2009-06-09

Rodriguez, Pam (Department: 3657)

Brakes

Wheel

Transversely movable

C188S343000, C074S567000, C192S09300C

Reexamination Certificate

active

07543692

ABSTRACT:
A cam for a brake is provided that allows for greater brake shoe travel and thicker brake linings while providing the same or greater mechanical force as compared to conventional cams. One or more lobes of the cam include multiple portions having varying profiles in axial cross-section. The variation in the cam profiles results in a cam in which the outermost ends or tips of the lobes are longer than in conventional cams yet retain the same mechanical strength.

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International Search Report issued in corresponding international application PCT/US2005/019573.
Written Opinion issued in corresponding international application PCT/US2005/019573.
Declaration of James R. Clark.

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