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:
Apr. 05, 1994
Filed:
May. 12, 1992
Applicant:
Inventors:
Assignee:
Firma Carl Freudenberg, Weinheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F / ;
U.S. Cl.
CPC ...
26714014 ; 26714012 ;
Abstract
In a variable-resilience engine mount a top member rests on two rubber spring elements which, in turn, rest on a parallel base. An ancillary component deactivates one of the spring elements when necessary. A first, outer spring element extends axially at least part-way up the second, inner spring element. The second spring element has a cavity at its center. A fluid can be injected into the cavity to inflate and expand the second spring element. The cavity will continue to inflate, making the mount less resilient as more fluid is injected, until it is stopped by a reinforcement surrounding it.