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:
Feb. 04, 1992
Filed:
Feb. 02, 1990
Applicant:
Inventors:
Tillman Freudenberg, Weinheim, DE;
Ulrich Freudenberg, Hirschberg, DE;
Assignee:
Firma Carl Freudenberg, Weinheim/Bergstr., DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60G / ;
U.S. Cl.
CPC ...
2671 / ; 267219 ;
Abstract
A rubber mounting which has a hydraulic damping device for damping vibrations of a predetermined frequency including a working and equalization chamber (6, 4) joined by a connecting passage (10) and filled with a hydraulic liquid. The connecting passage (10) is channel-like configured and dimensioned such that when subject to vibrations of the frequency to be damped the enclosed liquid volume can be made to resonate and such that the connecting passage (10) is narrowed to a throttle (12) only in the area of a point which is narrowly defined in axial direction.