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
Eric G Olsen, Woodbury, CT (US);
Ernest P Gagnon, Machester, CT (US);
Jerome F Jaminet, Glastonbury, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
A linear motor drive assembly having a first primary and a second primary, with a plurality of highly conductive sheets therebetween is provided. The primaries are fixed to a center support extending lengthwise between the two primaries. In a first embodiment, a pair of highly conductive sheets is arranged between the two primaries, edge to edge, in the same plane. A gap, wide enough to permit the center support to pass through freely, separates the sheets. In a second embodiment, a secondary comprising two halves is also positioned between the two primaries. The two halves are arranged edge to edge, in the same plane, separated by a gap wide enough to permit the center support to pass through freely. Sheets of highly conductive material are fixed to the faces of the secondary halves.