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. 22, 1991
Filed:
Jan. 16, 1990
John W Murphy, Kettering, OH (US);
Albert G Haitz, Dayton, OH (US);
Kenneth L Myers, Kettering, OH (US);
General Motors Corporation, Detroit, MI (US);
Abstract
An improved laminated rotor assembly is disclosed which features a novel key/keyway design that prevents lamination reversal while permitting indexing of successive laminae for the distribution of dimensional variations thereof. There are multiple, symmetrically oriented keyways, each keyway having an identical asymmetrical profile. The symmetrical distribution of identical profile keyways permits indexing of successive laminae, and the asymmetrical keyway profiles prevent lamination reversal. In the preferred embodiment, two or three keyways are employed, each key and keyway being formed in the shape of a step having at least two different radial dimensions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile