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:
Jan. 08, 1980
Filed:
May. 08, 1978
Applicant:
Inventors:
Gordon J Roberts, Shaker Heights, OH (US);
James H Heasley, Shaker Heights, OH (US);
Assignee:
Ferro Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; F16D / ;
U.S. Cl.
CPC ...
1882 / ; 106 36 ; 106 50 ; 260 38 ; 260D / ;
Abstract
A combined friction modifier and reinforcing agent and friction materials containing it are disclosed in which the combined modifier and reinforcing agent comprises a substantially amorphous, unstable, finely divided glass convertible in response to heat generated by the friction material during use to a devitrified, crystallized, friable state which separates from the amorphous, unstable glass in a substantially non-smearing particulate form.