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. 31, 2010
Filed:
Mar. 15, 2007
Yongqing Fang, Hangzhou, CN;
Jie HU, Hangzhou, CN;
Jianguo LI, Hangzhou, CN;
Mingping Jiang, Hangzhou, CN;
Feng Xu, Hangzhou, CN;
Yongqing Fang, Hangzhou, CN;
Jie Hu, Hangzhou, CN;
Jianguo Li, Hangzhou, CN;
Mingping Jiang, Hangzhou, CN;
Feng Xu, Hangzhou, CN;
Otis Elevator Company, Farmington, CT (US);
Abstract
A bi-directional escalator includes an ascending escalator and a descending escalator arranged in parallel and side-by-side with the ascending escalator. A driving machine drives an ascending driving unit and a descending driving unit at the same time. A controller controls operation of the driving machine. The driving machine includes an electric motor and a reduction gearbox connected to the electric motor. The reduction gearbox has a first output shaft and a second output shaft both arranged on the same side of the reduction gearbox.