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:
Dec. 24, 1991
Filed:
Feb. 26, 1990
Applicant:
Inventors:
Keiichiro Nakai, Tokyo, JP;
Manabu Suganuma, Narita, JP;
Assignee:
Otis Elevator Company, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187 94 ; 187 / ;
Abstract
The rope weight of a linear motor driven elevator is compensated by using a cable suspended from the bottom of a counterweight and from the bottom of an elevator car, the cable supplying electrical power to a moving member of the linear motor, the moving member functioning as a primary conductor.
Nakai, Keiichiro. (1991). Rope weight compensating device for a linear motor driven elevator (U.S. Patent No. 5074384). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5074384
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile