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. 23, 2021
Filed:
Dec. 15, 2017
Applicant:
Otis Elevator Company, Farmington, CT (US);
Inventors:
Enrico Manes, Feeding Hills, MA (US);
Robert A. Barth, South Windsor, CT (US);
Xiaodong Luo, South Windsor, CT (US);
Shihemn Chen, Bolton, CT (US);
Daryl J. Marvin, Farmington, CT (US);
Michael A. Klecka, Coventry, CT (US);
Luke A. Mishler, Manchester, CT (US);
Assignee:
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 1/18 (2006.01); B33Y 80/00 (2015.01); B66B 5/22 (2006.01);
U.S. Cl.
CPC ...
F16F 1/187 (2013.01); B33Y 80/00 (2014.12); B66B 5/22 (2013.01); F16F 2224/0208 (2013.01); F16F 2226/04 (2013.01); F16F 2234/00 (2013.01);
Abstract
An illustrative example spring includes a curved shape body having a length. The body includes a cavity that extends along at least a majority of the length. The body has a cross-section across the length that is different at a plurality of locations on the body along the length.