Patent ID: 6241057
Filing Date: 2001-06-05
Classification: B60T,B61H

Abstract:
A hydraulic parking brake assembly for a railroad vehicle braking system, said railroad vehicle braking system including an air cylinder, a push rod located within said air cylinder, an air cylinder transfer lever connected to an end of said push rod, and at least one force transmitting member, said hydraulic parking brake assembly comprising:(a) a hydraulic actuator engageable with said braking system, said hydraulic actuator including a hydraulic piston member disposed for movement in an outwardly direction from said hydraulic actuator upon activation of said hydraulic actuator;(b) a connecting means having a first end and a second end, said first end being disposed on said hydraulic piston at a location remote from said hydraulic actuator; and(c) a lever arrangement attached to said second end of said connecting means such that at least a portion of said lever arrangement moves in accordance with movement of said hydraulic piston, said lever arrangement being associated with said air cylinder transfer lever such that upon activation of said hydraulic actuator, said lever arrangement causes said air cylinder transfer lever to rotate and apply a force to said push rod and said at least one force transfer lever to achieve activation of said parking brake assembly.