Patent ID: 7097004
Filing Date: 2006-08-29
Classification: F16J

Abstract:
1. A brake assembly comprising: a caliper body that defines a piston bore and defining an axis; a caliper piston at least partially disposed in the piston bore; and a piston boot cooperating with the caliper body and the caliper piston to define a cavity, the piston boot including a first seal member, a second seal member and a vent, the first seal member sealingly engaging the caliper piston, the second seal member sealingly engaging the caliper body; said vent including a first axially extending portion and a second radially extending portion positioned in and through one of said first or second seal members from one end of the seal to the other, and the vent is in fluid communication with the cavity and includes a valve element, said valve element extending from one end of said first or second seal member and said valve element is operable in a sealed condition in which the valve element inhibits fluid communication between the cavity and the atmosphere, the valve element being further operable in an unsealed condition to vent at least a portion of a fluid within the cavity to the atmosphere, the valve element being normally maintained in the sealed condition but changing to the unsealed condition in response to a fluid pressure within the cavity in excess of a predetermined threshold pressure.