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. 06, 1981
Filed:
Mar. 28, 1978
Isamu Shirai, Isesaki, JP;
Sankyo Electronic Company Limited, Isesaki, JP;
Abstract
An electromagnetic clutch wherein a rotational force is transmitted between a first rotatable member and a second rotatable member by a magnetic attraction of an armature supported on one of the first and second rotatable members to the other member. The armature is rotatable with respect to the member upon which it is mounted within a limited extent. At least one arcuate spring member is provided to connect the armature and the supporting member. The inner surface of the arcuate member faces the annular surface of a portion of the other rotatable member. When the armature is magnetically attracted to, and rotated together with, the other rotatable member, the inner surface of the arcuate spring member comes into contact with an annular surface of the other rotatable member so that the transmission of the rotational force is effected through the arcuate spring in addition to the magentic attraction of the armature.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile