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:
Apr. 22, 2014
Filed:
Apr. 19, 2012
Kiyoji Minegishi, Obu, JP;
Kiyoji Minegishi, Obu, JP;
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Abstract
A speed reducer used for a wind power generation facility includes a two-stage reduction mechanism of at least a front stage reduction mechanism and a rear stage reduction mechanism; a coupling that is arranged between the front stage reduction mechanism and the rear stage reduction mechanism and has a torque limiter mechanism which does not transfer a torque exceeding a predetermined value; and an oil seal that partitions and seals a space where the front stage reduction mechanism is accommodated and a space where the coupling is accommodated. The front stage reduction mechanism is separable from the coupling in a sealed state by the oil seal.