Brakes – Operators – Spring
Patent
1996-03-05
1997-02-11
Butler, Douglas C.
Brakes
Operators
Spring
188 718, 188196R, 188196P, 188264F, 188 726, 188 729, 303 71, 303 10, F16D 6524
Patent
active
056011636
ABSTRACT:
Apparatus for automatically compensating or adjusting for the slack or added travel as frictional material on brake pads wears during repetitive brake applications. A stack of snap rings each having a gap in its periphery is collapsed or compressed and assembled onto the inside diameter of a wall of a hydraulic pressure applied cylinder portion. The wall inside diameter has a shoulder with a first diameter that holds the snap rings in their compressed condition. Contiguous to that section is a second wall section having a diameter larger than the first section such that as the cylinder is extended further during a braking action because of wearing of the brake pads, one of the snap rings is forced into the larger diameter area thus expanding it and preventing the wall portion of the cylinder from returning to its original position, thus maintaining the gap constant.
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Butler Douglas C.
IRI International Corporation
LandOfFree
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