Patent ID: 6196364
Filing Date: 2001-03-06
Classification: B60T,F16D,Y10T

Abstract:
A brake bleeder check valve (10) and wheel brake caliper (27) combination,wherein said brake bleeder check valve (10) comprises:an elongated valve body (11) having an externally threaded cylindrical wall portion (16), the elongated valve body (11) being integral with a nut portion (12) and a hose connecting member (20) at a first end, and having an integral tapered portion (17) and a cylindrical portion (13) at a second end, the cylindrical portion (13) having a plurality of openings (14) therein which are in fluid communication with a throughbore (15) that extends entirely through the elongated valve body (11);a valve seat member (22) comprising a tapered valve seat portion (24) integral with a cylindrical elongated portion (23), the cylindrical elongated portion (23) being receivable in a coiled spring (21) which is loosely receivable in the throughbore (15) and which enables the valve seat member to extend outward from the second end of the elongated valve body;wherein the wheel brake caliper (27) comprises:a valve recess (29) having an interior threaded section (30), the valve recess being integral with and leading into a tapered valve seat (34), and an unthreaded passageway (32) in fluid communication with and extending from the valve seat (34) to an interior chamber (33);wherein rotation of the nut portion (12) allows the externally threaded cylindrical wall portion (16) of the elongated valve body (11) to rotate within the interior threaded section (30) of the valve recess (29) between a first tightened position and a second loosened position;wherein the first tightened position occurs when the tapered valve seat portion (24) of the elongated valve body (11) is forced into contact with the valve seat (34) to sealingly close the interior chamber (33) of the wheel brake caliper (27);wherein the second loosened position occurs when the tapered valve seat portion (24) of the elongated valve body (11) is in sealing contact with the valve seat (34) through the bias of the coiled spring (21), until pressure in the interior chamber (33), resulting from a brake pedal being pumped, forces the tapered valve seat portion (24) away from the valve seat (34) by compressing the coiled spring (21), and allowing fluid to flow around the tapered valve seat portion (24) and through the plurality of openings (14) to the hose connecting member.