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:
Feb. 25, 1992
Filed:
Mar. 15, 1991
Applicant:
Inventors:
Timothy J Gsrinaski, East Hartford, CT (US);
Jerome E Jaminet, Glastonbury, CT (US);
Eric G Olsen, Woodbury, CT (US);
Assignee:
Otis Elevator Company, Farm Springs, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66E / ;
U.S. Cl.
CPC ...
187112 ; 187122 ; 187135 ;
Abstract
An elevator is driven by a linear motor having a flat secondary element comprised of a plurality of segments which extend the length of an elevator rise. The segments of the secondary element are connected by a bus bar which overlaps joints between each adjacent segment by enclosing an end portion of each segment. The bus bar, conducts current across the joints, provides a surface for guide rollers which maintain an air gap between the secondary element and a primary element, and minimizes relative motion between adjacent segments of the secondary element.