Brakes – Operators – Fluid pressure
Patent
1995-03-07
1996-10-01
Butler, Douglas C.
Brakes
Operators
Fluid pressure
188 724, 188370, 251216, F16K 3144
Patent
active
055604579
ABSTRACT:
A bleeder screw for use in a disc brake assembly including a caliper provided with at least one cylindrical recess formed therein and at least one aperture formed therein. The aperture in the caliper includes a non-threaded portion and a threaded portion. A piston is slidably disposed in the recess, and a pair of brake shoes are carded by the disc brake assembly and disposed on opposite axial sides of an associated rotor. Each of the brake shoes includes a backing plate and a friction pad. An actuation system is carded by the caliper for selectively moving the brake shoes between a non-braking position, wherein each of the friction pads is spaced apart from the adjacent side of the rotor, and a braking position, wherein each of the friction pads frictionally engages the adjacent side of the rotor. The bleeder screw is threadably disposed in the aperture of the caliper. The bleeder screw includes an elastomeric seal disposed about a portion thereof. The elastomeric seal engages at least a portion of the non-threaded portion of the aperture when the bleeder screw is disposed in the aperture.
REFERENCES:
patent: 2892614 (1959-06-01), Majneri
patent: 3578285 (1971-05-01), Carlton
patent: 3868001 (1975-02-01), Yokoi
patent: 4164241 (1979-08-01), Kubo
patent: 4445530 (1984-05-01), Meixell
patent: 4470577 (1984-09-01), Warwick
patent: 4834140 (1989-05-01), Schmidt
patent: 5226452 (1993-07-01), Muller et al.
patent: 5447214 (1995-09-01), Appelgren
Butler Douglas C.
Dayton Walther Corporation
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