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. 27, 2019
Filed:
Aug. 24, 2016
Otis Elevator Company, Farmington, CT (US);
HakKi Han, Seoul, KR;
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
A reflective optical encoder () assembly includes a motor and brake assembly at least partially in a motor and brake housing (). An encoder housing is at least partially received in a cavity () of the motor and brake housing. The reflective optical encoder includes an encoder disk () and an encoder shaft () that rotate with a shaft of the motor. The assembly includes holes () in the encoder disk. A seal () at an interface between the encoder housing and the encoder shaft to prevent contaminants from the cavity from entering the encoder housing and a packing inside the encoder housing. A packing () is situated to prevent any dust or debris associated with the encoder shaft rotating relative to the seal from getting on the encoder disk.