Patent · US Expired

Piston unit having a captive spring

US7100374B2 · kind B2 · utility

2Cited by

7References

8Claims

0Family size

Assignee

Continental Teves AG & Co. OHG · DE

Inventors

Harald König · Bernhardswald, DE
Andreas Bischoff · Frankfurt am Main, DE

Key dates

Filing date	Mar 15, 2003
Grant date	Sep 5, 2006
Priority date	—
Expiry date	May 7, 2023

Classification

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

Abstract

The invention relates to a piston unit having a captive spring for a cylinder, particularly for a tandem master cylinder of a motor vehicle, wherein the spring, with a first end, is supported at least indirectly on a piston and, with a second end, is supported on a retaining device that can be displaced relative to the piston, and the movement of the retaining device relative to the piston is limited by securing means.The invention is characterized in that the securing means have a projection, which is mounted in a non-detachable manner on the piston and whose free end is provided with a stop that limits the movement of the retaining device relative to the piston.

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