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. 17, 2018
Filed:
Nov. 08, 2013
Applicant:
Otis Elevator Company, Farmington, CT (US);
Inventors:
Xiaoyuan Chang, Ellington, CT (US);
David R. Torlai, Torrington, CT (US);
Assignee:
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B 7/02 (2006.01); B32B 37/12 (2006.01); B32B 38/10 (2006.01);
U.S. Cl.
CPC ...
B66B 7/022 (2013.01); B32B 37/12 (2013.01); B32B 38/10 (2013.01); B32B 2307/752 (2013.01);
Abstract
A method of making a guide rail for an elevator system includes providing a metallic guide rail having a base portion and a blade portion extending from the base portion The blade portion includes one or more guide surfaces interactive with a safety brake of the elevator system. A protective layer is applied to the guide rail for corrosion protection and a perimeter of the protective layer is adhered to the guide rail to seal the guide surfaces from corrosive elements, while not adhering the protective layer to the guide surfaces.