Electrical wrench

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9272399
APP PUB NO 20140165788A1
SERIAL NO

14096185

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An electrical wrench includes a motor, a transmission mechanism, a ratchet assembly and a controlling member coupled to each other. The transmission mechanism is configured to provide idle travels. The ratchet assembly receives the rotating torque output by the transmission mechanism and drives the ratchet therein in a single direction. The controlling member is connected with the motor and controls the motor to rotate in the opposite direction when detecting the motor is stalled. The electrical wrench thus provides impacting action by electrical control and simplifies the mechanical structure of the tool, which not only reduces the manufacturing cost, but also prolongs the working life of the tool.

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Patent Owner(s)

Patent OwnerAddress
CHERVON (HK) LIMITED138 GLOUCESTER ROAD ROOM 803B 8/F ALLIED KAJIMA BUILDING WANCHAI

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Liang Nanjing, CN 931 8928
Zhou, Qiwei Nanjing, CN 7 41

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