Patent ID: 6311806
Filing Date: 2001-11-06
Classification: F16D

Abstract:
An improved disc braking system of the type employing two mating housings, with each housing having a pair of cylindrical piston receiving recesses, and wherein each of the piston receiving recesses is adapted to support a base mounted spring, a brake fluid inlet passage and an upstanding seal formed adjacent an opened end of the piston recess, the brake system further adapted to support a slidably positioned brake pad formed adjacent the opened ends of the piston recesses, an improved piston structure comprising:a cylindrical base portion formed from a major diameter, the base portion having an annular spring receiving recess formed therein with a based mounted coil spring received within the annular recess;a cylindrical recess formed within the length of the base portion, an elastomeric o-ring positioned within the recess and having an outer surface adapted to form a fluid tight seal with a cylindrical piston recess of the brake system;a cylindrical brake pad engaging portion formed from a minor diameter;a thin layer of heat isolating material removably secured by a threaded fastener to the engaging portion;a cylindrical recess formed within the length of the engaging portion and adapted to receive a peripheral edge of the upstanding seal of the braking system;the heat isolating material adapted to engage the surface of an adjacent brake pad.