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. 15, 1983
Filed:
Dec. 29, 1980
Applicant:
Inventors:
Dean A Pearch, Mt. Pleasant, MI (US);
Thomas F Pung, Sr, Weidman, MI (US);
Assignee:
Dana Corporation, Toledo, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; F16D / ;
U.S. Cl.
CPC ...
464 48 ; 1921 / ;
Abstract
A torque limiting mechanism provides for a spring loaded coupling of driver and driven friction discs for simultaneous and uniform rotation. A spring retainer system is incorporated which provides restraint against expansion of the spring beyond a predetermined limit. In a preferred embodiment the spring becomes inoperative to urge the discs together after friction linings on the discs have worn to a predetermined design limit. A condition of zero torque is thereby created, thus signalling need for replacement of friction linings.