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:
Jun. 13, 2000
Filed:
Dec. 30, 1998
Roger Mosciatti, Coram, NY (US);
MFM Technology L.L.C., Ronkonkoma, NY (US);
Abstract
A rotor is comprised of laminations forced on a shaft that has two staking rails, which penetrate the laminations and create two holding points. The two staking rails are positioned on the shaft at an angle to force the lamination toward the center of the shaft and force it hard against a flat on the shaft. This assembly provides for 'zero' rotational movement without additional steps in the manufacturing process. An additional feature of the assembly is that the flat on the shaft relates to flats on the rotor to which the permanent magnets are attached, and a flat on the shaft for mounting an encoder, which flats are all in the same plane. This allows the motor to be easily aligned, which is a requirement to properly phase motor rotation to motor commutation.