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:
Sep. 08, 1981
Filed:
May. 08, 1979
Masakatsu Sakaki, Isesaki, JP;
Nobuaki Saegusa, Isesaki, JP;
Sankyo Electric Company Limited, Isesaki, JP;
Abstract
An electromagnetic clutch including a pulley which is rotated by an external power source through a belt or belts for selectively transmitting the rotation of the pulley to a drive shaft by electromagnetically attracting a magnetic armature supported on the drive shaft. The pulley has a magnetic annular body rotatably supported and a belt-receiving groove member of aluminum alloy formed onto the outer surface of the magnetic annular body by die casting and integrated with the magnetic annular body. The construction improves the weight, cost and simplifies the method of production of the pulley without degrading the performance and balance of the pulley.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile