Patent ID: 6378185
Filing Date: 2002-04-30
Classification: B25B,Y10T

Abstract:
A hand tool for retracting a piston into a caliper housing of an automotive-type hydraulic brake, and comprising in combination:a pair of planar spreader plates of a size and generally arcuate segment shape adapted to be inserted into the caliper in place of disc pads normally positioned in the caliper; the spreader plates being mounted on a body in such a way that they are movable with respect to each other from a first compressed position in which the spreader plates are proximate for joint insertion within a caliper, and a second position in which the spreader plates are spread sufficiently to retract a brake piston into its caliper; a hydraulic actuator in the body and connected to at least one of the spreader plates for spreading the plates from the first to the second position with force sufficient to retract a piston into its caliper, and a hand operator connected to the hydraulic actuator for controllably advancing the spreader plates to thereby retract the piston.