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:
Oct. 26, 1976
Filed:
Apr. 23, 1975
Applicant:
Inventors:
Gunter Holland-Letz, Paderborn, DT;
Hermann Kohlhage, Paderborn, DT;
Assignee:
Nixdorf Computer AG, Paderborn, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; F16D / ; F16D / ;
U.S. Cl.
CPC ...
192 / ; 192 26 ; 192 36 ;
Abstract
A spring clutch for a step drive, such as for form feeds in office machines, comprising drive and driven hubs rotatable about a common axis and having respective axially adjacent parts surrounded by a coil torsion spring which, in an unstressed condition, has a diameter greater than that of the hub parts, the spring having one end anchored for rotation with the drive hub, and the other end coupled to a clutch actuating member through the intermediary of a slip clutch mechanism having a slip torque which is greater than the torque required to wind the coil torsion spring onto the hub parts.