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. 18, 1995
Filed:
Jan. 31, 1994
Applicant:
Inventors:
Edward J Vydra, Northbrook, IL (US);
Gregory Pardus, Darien, IL (US);
Scott R Dobrusky, Chicago, IL (US);
Michael R Loth, Oak Lawn, IL (US);
Assignee:
Pre Finish Metals Incorporated, Elk Grove Village, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
188 7337 ; 1882 / ; 1882 / ;
Abstract
A disk brake pad assembly includes a rigid metal backing plate, a brake friction lining pad and a damping structure including a viscoelastic material disposed between the backing plate and the friction lining pad and fixed to each. In one embodiment the damping structure is a perforated metal plate having perforations filled with viscoelastic damping material. The damping plate may be provided along its opposite sides with constraining layers. Such a perforated damping structure may be disposed on either side of the backing plate.