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:
Apr. 02, 2002
Filed:
Apr. 07, 2000
Applicant:
Inventors:
Glenn Arthur Calhoon, Aliquippa, PA (US);
Paul Thomas Bottegal, Lower Burrell, PA (US);
Robert Joseph Rinefierd, Irwin, PA (US);
Francois Jean Marchand, Pittsburgh, PA (US);
Robert Michael Slepian, Murrysville, PA (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 4/100 ;
U.S. Cl.
CPC ...
H02K 4/100 ;
Abstract
A linear actuator which includes a housing assembly, a shaft assembly disposed within the housing assembly, a plurality of flat magnets disposed within said housing about said shaft, and a structure to support the magnets. Because the magnets are flat magnets, the components that support the magnets may be machined with tolerances that virtually eliminate the air gap between the magnets and the support structures.