Global Patent Index - EP 0991554 A1

EP 0991554 A1 2000-04-12 - CONCENTRIC COMPENSATOR CHAMBER AND MASTER CYLINDER FOR DISC BRAKE SYSTEM

Title (en)

CONCENTRIC COMPENSATOR CHAMBER AND MASTER CYLINDER FOR DISC BRAKE SYSTEM

Title (de)

KONZENTRISCHE KOMPENSATIONSKAMMER UND HAUPZYLINDER FÜR SCHEIBENBREMSANLAGE

Title (fr)

CHAMBRE DE COMPENSATION CONCENTRIQUE ET MAITRE-CYLINDRE POUR UN SYSTEME DE FREINS A DISQUES

Publication

EP 0991554 A1 (EN)

Application

EP 99918859 A

Priority

  • US 9909127 W
  • US 8327698 P

Abstract (en)

[origin: WO9955567A1] A disc brake assembly (10; 100) is provided which is hydraulically operated with brake fluid. A master cylinder chamber (30) is formed within a concentric cylinder (18) about which is concentrically disposed an internal thermal compensation chamber (42). The master cylinder chamber (30) and the internal thermal compensation chamber (42) are in fluid communication to allow for the passage of the brake fluid therebetween. A master cylinder piston (32) is slidably disposed in the master cylinder chamber (30) to generate pressure build-up in the brake fluid to cause actuation of disc brakes. A compensator piston (50) is disposed within the internal thermal compensation chamber (42) and is urged by a spring (56) to be in engagement with the brake fluid. By continuously maintaining engagement between the compensator piston (50) and the brake fluid, there can be the prevention of air pocket formation in the brake fluid, thus eliminating the need for air pocket removal through bleeding.

IPC 1-7 (main, further and additional classification)

B60T 11/00; B60T 13/00

IPC 8 full level (invention and additional information)

B60T 11/16 (2006.01); B62L 1/00 (2006.01); B62L 3/00 (2006.01); B62L 3/02 (2006.01)

CPC (invention and additional information)

B62L 1/00 (2013.01); B62L 3/023 (2013.01)

Citation (search report)

See references of WO 9955567A1

Designated contracting state (EPC)

AT BE CH DE ES FR GB IT LI NL SE

EPO simple patent family

WO 9955567 A1 19991104; AU 3667599 A 19991116; CA 2295130 A1 19991104; EP 0991554 A1 20000412; JP 2002506408 A 20020226

INPADOC legal status


2001-05-23 [18W] WITHDRAWN

- Date of withdrawal: 20010327

2000-04-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000125

2000-04-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE ES FR GB IT LI NL SE