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. 17, 1981
Filed:
Jun. 30, 1978
Applicant:
Inventors:
Heinz W Dreher, S-782 00 Malung, SE;
Bo S Persson, Brakne-Hoby, SE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06B / ;
U.S. Cl.
CPC ...
160297 ; 1603 / ;
Abstract
A ball clutch mechanism in a spring motor for a tubular roller-blind rod or the like. The clutch includes a hub or outer clutch member rotatably mounted on a cylindrical portion of a shaft made of plastics and forming an inner clutch member including clutch ball receiving recesses. The hub has straight ball channels and is made of plastics in one piece. The hub is locked in an axial position on the shaft by a locking pin engaging a groove in the shaft. The locking pin has a stop arm located to retain the respective clutch ball in the ball channel.