Richard George Stevenson

US Patent:

46606858, Apr 28, 1987

Filed:

Nov 25, 1985

Appl. No.:

6/801585

Inventors:

Lloyd M. Thacker - Lutherville MD
Richard D. Stevenson - Severn MD

International Classification:

F16D 6502

US Classification:

188 7337

Abstract:

A disc pad brake system (10) is provided for longitudinally displacing one or more friction pads (14) into force contact with a rotating disc member (12). A caliper assembly (24) includes a caliper housing (26) within which there is displaceably mounted a piston member (18) having a bore (20). The piston member (18) is longitudinally displaceable in a reversible manner for contacting and displacing the friction pads (14) into contact with the disc member (12). The caliper assembly (24) includes a pair of carrier plates (28) having opposing first and second surfaces (30 and 32) with the first surface (32) of the carrier plate (28) being coupled in fixed fashion to the friction pads (14). At least one resilient pad member (34) is displaceably secured to the second surface (32) of the carrier plate (28) for contacting the piston member (18) during a braking operation. The resilient pad member (34) provides for vibrational damping and lowers the frequencies induced when the friction pads (14) contact the disc members (12) to lessen the audio output of the braking operation.