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. 23, 1991
Filed:
Nov. 14, 1989
Applicant:
Inventors:
Keiichiro Nakai, Tokyo, JP;
Yoshinori Nakanishi, Shibayama, JP;
Assignee:
Otis Elevator Company, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187 20 ; 187 94 ; 254394 ;
Abstract
The suspension system for an elevator car provides ropes that converge on the car close to a vertical line containing the center of gravity of the car. The ropes thus impart very little lateral or torsional movement to the car whereby a smoother ride results. The ropes are mounted on a set of sheaves which are arranged in a V-shaped array. The ropes thus fed to the counterweight are spread farther apart than those fed from the sheaves to the car.
Nakai, Keiichiro. (1991). Sheave array arrangement for elevator (U.S. Patent No. 5009288). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5009288
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile