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. 10, 1979
Filed:
Aug. 04, 1977
Applicant:
Inventor:
William H Sink, Auburn, IN (US);
Assignee:
Dana Corporation, Toledo, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
1921061 ; 64 2 / ; 64 2 / ;
Abstract
A coupling device such as a clutch comprises a driving member and a driven member operatively connected by a plurality of flat, generally annular and stacked springs. Each spring has a radially extending slit and is therefore C-shaped, with one end portion connected to the drive member. End portions of adjacent springs are circumferentially staggered, with frictional damping forces, in addition to the spring damping forces, thereby created between next adjacent springs upon relative movement between the driving and driven members. Adjacent springs may be adapted to expand and contract, respectively.