The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 1988
Filed:
Nov. 13, 1986
Applicant:
Inventor:
Volker Hartel, Germering, DE;
Assignee:
Metzeler Kautschuk GmbH, Munchen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16F / ;
U.S. Cl.
CPC ...
267122 ; 188267 ; 248550 ; 248562 ; 248636 ; 267 35 ; 2671401 ; 2671411 ; 267152 ; 267219 ; 280707 ; 280710 ; 280712 ;
Abstract
A pneumatic spring element includes a rubber-elastic peripheral wall and two rigid end walls defining a chamber therebetween, a bellows-like spring body disposed inside the chamber defining an outer sub-chamber between spring body and the peripheral wall, the spring body being subjected to compressed air in the interior thereof, and an electroviscous fluid filling outer sub-chamber and being controlled by an electrical field.