Brake master cylinder comprising plunger pistons and radial...

Details Brake master cylinder comprising plunger pistons and radial... Brake master cylinder comprising plunger pistons and radial...

2007-01-30

2007-01-30

Williams, Thomas (Department: 3683)

Brakes

Operators

Fluid pressure

C060S562000, C060S588000

Reexamination Certificate

active

10381772

ABSTRACT:
The present invention relates to a tandem master cylinder including two plunger pistons and its object is to design the cylinder as simple as possible and to render its assembly as economical as possible. This object is achieved by inserting circumferential annular grooves directly into the housing of the master cylinder in order to accommodate sealing sleeves, namely both the primary seal and, in an improvement of the invention, the primary seal of the piston at the end of the push rod as well as the secondary seals of both pistons. Collecting annular grooves at the level of the connecting outlets for the compensating reservoir are further favorable aspects of the invention.

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patent: WO 97/22505 (1997-06-01), None
International Search Report of PCT/EP01/08441 dated Nov. 30, 2001.
German Search Report dated Jan. 23, 2002.

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