Patent · US Expired

Device for surveillance of a gas-filled chamber to monitor leaks

US5226315A · kind A · utility

3Cited by

4References

34Claims

0Family size

Assignee

WABCO Westinghouse Fahrzeugbremsen GmbH · DE

Inventors

Peter Bartscher · Hannover, DE
Gerhard Stegemann, deceased · Salzhemmendorf, DE
Gunther Singbartl · Hannover, DE
Helmut Ulrich · Springe, DE

Key dates

Filing date	Oct 15, 1990
Grant date	Jul 13, 1993
Priority date	—
Expiry date	Oct 15, 2010

Classification

Technology area (CPC H)Electricity
CPC primaryH01H35/28
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A device for monitoring the sealing properties of a gas-filled chamber is provided. The temperature-sensitive device is formed out of a thermally-reacting element (14, 19, 20, 24). The element changes its dimensional length depending on a temperature change. The element (14, 19, 20, 24) is disposed between a pressure measurement device (6, 11) and a valve (7, 8; 9, 10), serving as a signal generator. The device can be used for a monitoring of the pressure in a vehicle tire or of the gas density in a vehicle tire.

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