Patent ID: 8245820

Claim:
An Automatic Brake Adjuster with a floating reference point with a one-way lock and a clutch mechanism for adjusting slack between a brake lining and a brake drum of a vehicular braking system comprising: a body connectable to a brake actuator at a first portion; a rotatable internally splined worm wheel in a second portion of the body and configured to receive an S cam shaft; and a clutch cam one-way lock mechanism comprising: a rotatable worm shaft secured perpendicular to the worm wheel but meshing with the worm wheel, a one-way lock/clutch seat having first serrations engaged with second serrations of the worm shaft and guided by a bearing retainer to form the clutch mechanism and a regulator worm wheel engagable with the one-way lock/clutch seat by means of a torsion spring located on a thrust sleeve and mounted on a hexagonal end of the worm shaft such that the clutch mechanism and the one-way lock mechanism are on the worm shaft, and a retaining ring provided on the thrust sleeve and configured to cage the torsion spring and the regulator worm wheel for isolating clutch seat serrations from overriding worm shaft clutch serrations while the clutch is disengaged; wherein the bearing retainer along with a thrust bearing retains the one-way lock/clutch seat through the thrust sleeve against a heavy compression spring, thereby isolating the regulator worm wheel and the torsion spring for free movement, wherein the one-way lock mechanism and the clutch mechanism are over the worm shaft, and wherein the one-way lock mechanism and the clutch mechanism engage with each other in the one-way lock/clutch seat.