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. 31, 1978
Filed:
Aug. 01, 1977
William F Jandeska, Rochester, MI (US);
Charles F Netherton, Marine City, MI (US);
Charles W Vigor, Rochester, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
In a preferred embodiment, thin curved rare earth-transition metal (RE-TM) compacts with good green strength are made by a stepwise process in the molding cavities of a portable compacting tooling. The powder is partially compacted and magnetically aligned in a first press equipped with magnetizing means. It is then transported in the tooling, which protects the powder from being disturbed during the transportation, to a second press where it is further compacted under much higher loads. The compacts thus formed can be further processed to form thin, curved, densified, permanent rare earth-cobalt magnets particularly suited for use as pole pieces in small, high-torque D.C. motors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile