Patent · US Expired

Tandem master cylinder

US5005350A · kind A · utility

7Cited by

1References

7Claims

0Family size

Assignee

Alfred Teves GmbH · DE

Inventors

Hans-Dieter Reinartz · Frankfurt am Main, DE
Helmut Steffes · Hattersheim, DE
Holger von Hayn · Bad Vilbel, DE
Thomas Meier · Cherbourg, FR

Key dates

Filing date	Oct 12, 1989
Grant date	Apr 9, 1991
Priority date	—
Expiry date	Oct 12, 2009

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T11/20
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A tandem master cylinder for hydraulic brake systems of automotive vehicles. The push-rod piston (29) and the floating piston (34) both are provided with a central valve. The central valve of the push-rod piston is coupled to the floating piston. The length of the bore (28) of the central valve in the push-rod piston (29) is dimensioned to allow the valve closure member (27) of the central valve in the push-rod piston to travel a distance within the bore of the central valve at least equal to the stroke of the floating piston (34).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.