Hydraulically actuated sliding-caliper disc brake
Patent 4798270 Issued on January 17, 1989. Estimated Expiration Date: 
December 3, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 3, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2498590 3502004 3531144 Structurally strong heat insulator for high transient temperatures Hydraulically controlled brake Ball joint assembly Patent #: 4666330 InventorsAssigneeApplicationNo. 07/128191 filed on 12/03/1987US Classes:188/264G, Insulators192/113.4, Thermal insulating92/212, With nonmetallic portion92/220, Threaded fastener92/258Rigid members connected by coaxial rigid stem or rodExaminersPrimary: Halvosa, George E. A.Attorney, Agent or FirmInternational ClassesF16D 65/84 (20060101)F16D 65/00 (20060101) F16D 65/14 (20060101) F16D 55/00 (20060101) Foreign Application Priority Data1986-12-03 DEAbstractAn actuator for a hydraulically actuated caliper disc brake having a brake shoe comprises an actuating piston of two-part construction mounted for displacement in a cylinder and acted upon by a pressure fluid. The actuator has a cup-shaped member of cast steel, the bottom of which is acted upon by the pressure-fluid, and a cylindrical core of a mechanically resistant and heat insulating material removably coaxially and having an end face pressed against the brake shoe when actuated. A plurality of thin discs of mechanically resistant material are secured to the end face of the core adjacent to the brake shoe for reducing heat transfer from the brake shoe to the piston. | |
