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:
Aug. 10, 1993
Filed:
Jan. 13, 1992
Applicant:
Inventors:
Eric G Olsen, Woodbury, CT (US);
Ernest P Gagnon, Machester, CT (US);
Jerome F Jaminet, Glastonbury, CT (US);
Assignee:
Otis Elevator Company, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 12 ; 187112 ;
Abstract
A layer of highly conductive material is provided which forms a complete electrical path about the secondary of a linear motor, perpendicular to the face of the secondary. The layer comprises a section of highly conductive material attached to each face of the secondary communicating with a primary. In one embodiment, the layer completely encircles the secondary. In other embodiments, electrically conductive means join the sections of the layer, thereby creating the complete electrical path about the secondary.