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:
Aug. 11, 2020
Filed:
Nov. 22, 2016
Otis Elevator Company, Farmington, CT (US);
Daniel B. Davis, III, Middlefield, CT (US);
Robert K. Williams, Tariffville, CT (US);
John Eschenbrenner, Canton, CT (US);
Gregory M. O'Seep, Simsbury, CT (US);
James L. Hubbard, Kensington, CT (US);
Martin J. Hardesty, West Hartford, CT (US);
Bruce P. Swaybill, Farmington, CT (US);
Jesse R. Richter, West Hartford, CT (US);
Gary P. Mendrala, West Springfield, MA (US);
Patricia Derwinski, Farmington, CT (US);
Christopher H. Koenig, Granby, CT (US);
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
Disclosed is a method for retrofitting an elevator machine with a thrust bearing, including removing, from a bearing stand, a first cover plate, providing access to an end portion of a motor shaft, securing an extension shaft against the end portion of the motor shaft, securing a thrust bearing housing against or axially offset from the bearing stand, positioning a thrust bearing in the bearing housing, wherein an inner race of the thrust bearing is securely positioned against, and axially fixed to, the extension shaft, and an outer race of the thrust bearing is securely positioned against the bearing housing, and securing a second cover plate to the bearing housing.