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.

Date of Patent:
Apr. 17, 2018

Filed:

Sep. 29, 2016
Applicants:

Safeway Electro-mechanical Co., Ltd., New Taipei, TW;

Chia-sheng Liang, Taipei, TW;

Inventor:

Chia-Sheng Liang, Taipei, TW;

Assignees:

SAFEWAY ELECTRO-MECHANICAL CO., LTD., New Taipei, TW;

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/72 (2006.01); F16H 57/021 (2012.01); F16H 3/64 (2006.01);
U.S. Cl.
CPC ...
F16H 3/72 (2013.01); F16H 3/64 (2013.01); F16H 57/021 (2013.01);
Abstract

A motorized gear reducer is provided with an axial support shaft in a housing; a speed reduction device including at least three stages of a sunless planetary gear train, each stage including a stationary ring gear, a rotatable ring gear served as a torque output, and a carrier on the support shaft and served as a torque input of each stage; planet gear sets, each in the carrier and including a first planet gear meshing the stationary ring gear, and a second planet gear meshing the rotatable ring gear, the rotatable ring gear of the last stage extending out of the housing to serve as a torque output of the speed reduction device; and a hollow motor surrounding the first stage and including a stator, a rotor surrounded and driven by the stator, and windings for rotating the rotor.


Find Patent Forward Citations

Liang, Chia-Sheng. (2018). Motorized gear reducer (U.S. Patent No. 9945454). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9945454

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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