Patent · US Expired

Vent conduit through position monitoring device for a work cylinder

US5123330A · kind A · utility

2Cited by

8References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Friedbert Roether · Cleebronn, DE
Norbert Schneider · Schorndorf, DE
Manfred Siebold · Eppelheim, DE

Key dates

Filing date	Apr 25, 1991
Grant date	Jun 23, 1992
Priority date	—
Expiry date	Apr 25, 2011

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF15B15/28
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A work cylinder in which the position of a work piston, its distance traveled at a given time and the speed at which it covers this distance are measured by a hollow-cylindrical sensor, and the results are delivered to an electronic switch device. The sensor serves as a passage for the breathing air of a breathing chamber of the work cylinder, as a result of which the sensor can be cooled. The work cylinder is intended for use to control vehicle engine clutches.

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