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:
Jul. 02, 2019
Filed:
Jan. 21, 2011
David R. Polak, Glastonbury, CT (US);
Christopher T. Chipman, Killingly, CT (US);
Charles C Coffin, Vernon, CT (US);
Arthur Blanc, Providence, RI (US);
John P. Wesson, Vernon, CT (US);
Yan Chen, South Windsor, CT (US);
Daniel G. Opoku, Montreal, CA;
Sergei F. Burlatsky, West Hartford, CT (US);
David R. Polak, Glastonbury, CT (US);
Christopher T. Chipman, Killingly, CT (US);
Charles C Coffin, Vernon, CT (US);
Arthur Blanc, Providence, RI (US);
John P. Wesson, Vernon, CT (US);
Yan Chen, South Windsor, CT (US);
Daniel G. Opoku, Montreal, CA;
Sergei F. Burlatsky, West Hartford, CT (US);
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
The present invention is directed to an elevator system. The elevator system comprises a car, a counterweight, at least one belt connecting the car and counterweight, and at least one sheave having a surface that engages with the belt. At least part of the surface of the sheave that interfaces with the belt has a plurality of features for reducing unwanted noise created due to the interaction between the belt and the sheave surface.