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:
Jun. 04, 1991
Filed:
Oct. 17, 1989
Applicant:
Inventors:
Ulrich Freudenberg, Hirschberg, DE;
Tillman Freudenberg, Weinheim, DE;
Assignee:
Firma Carl Freudenberg, Weinheim/Bergstrasse, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F / ;
U.S. Cl.
CPC ...
2671401 ; 180312 ; 248562 ; 248636 ;
Abstract
A hydraulic damped rubber bearing includes a damping devices for damping low and high-frequency vibrations. A damping device for low-frequency vibrations utilizes throttle or resonant effects and a damping device for high-frequency vibrations above 10 Hz utilizes a flexibly expandable waveguide, which is closed off at the end distal the working chamber by an element having a reflection-free resistance to flow.