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:
Sep. 06, 1994
Filed:
Dec. 10, 1992
Werner Hettler, Mannheim, DE;
Arnold Simuttis, Bad Kreuznach, DE;
Firma Carl Freudenberg, Weinheim/Bergstr., DE;
Abstract
A switchable bearing is disclosed which comprises a cup-shaped housing sealed by an annular spring element of an elastomeric material. Between the spring element and the housing base is a separating wall, which has at least one flow-through opening and which, together with the spring element, delimits a working chamber and, together with the housing, delimits a compensating chamber. The working chamber and the compensating chamber communicate through the flow-through opening and are filled with a hydraulic fluid. The flow-through opening is sealed by a piston of a control unit, arranged at least partially in the compensating chamber. The piston is actuated by a pressurized medium, and is connected in a gastight and relatively movable manner to an aneroid chamber, which is rigidly mounted in the housing and is capable of being charged with a pressurized medium. The aneroid chamber is delimited by a flexible first ring diaphragm, which seals off the piston and the aneroid chamber from the housing.