Patent · US Expired

Vehicle seat

US4941641A · kind A · utility

69Cited by

7References

5Claims

0Family size

Assignee

Gebr. Isringhausen · DE

Inventors

Manfred Granzow · Dörentrup, DE
Hans-Peter Mischer · Detmold, DE

Key dates

Filing date	Mar 13, 1989
Grant date	Jul 17, 1990
Priority date	—
Expiry date	Mar 13, 2009

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60N2/525
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

An air-sprung vehicle seat includes an air spring and a scissors linkage which are operative for adjusting the vertical height of the seat. The vehicle seat also includes a locking device for adjustably fixing the vertical height of the seat, the locking device including a fixing element which is articulated to the scissors linkage and a fixing device which is engageable with the fixing element for fixing the relative position thereof in the seat. The seat also includes a non-return valve which is responsive to actuation of the fixing device for controlling the admission of compressed air into and the escape of compressed air from the air spring.

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