Helical worm gear motor
Description
The broken lines show portions of a helical worm gear motor that form no part of the claimed design.
Claims
The ornamental design for a helical worm gear motor, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
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Patent History
Patent number: D855022
Type: Grant
Filed: Jun 28, 2017
Date of Patent: Jul 30, 2019
Inventors: Demu Chen (Zhejiang), Zhiming Tong (Zhejiang), Guangpei Fu (Zhejiang)
Primary Examiner: Garth Rademaker
Assistant Examiner: Fritzgerald L Butac
Application Number: 29/609,041
Type: Grant
Filed: Jun 28, 2017
Date of Patent: Jul 30, 2019
Inventors: Demu Chen (Zhejiang), Zhiming Tong (Zhejiang), Guangpei Fu (Zhejiang)
Primary Examiner: Garth Rademaker
Assistant Examiner: Fritzgerald L Butac
Application Number: 29/609,041
Classifications