Lifting device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11661321
APP PUB NO 20210362989A1
SERIAL NO

17111804

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A lifting device includes a drive, a speed change gear device arranged above the drive and configured to be rotatable by means of the drive, a transmission device connected to the speed change gear device and a lifting mechanism fixed in the transmission device, and the speed change gear device is fixed to a side wall of the transmission device. Under an action of the drive and a speed change of speed change gear device, a gravity of a weight suspended on the lifting device is converted, so that the weight is lifted under a small force. The lifting device can also be driven via an electric hand tool. In addition, a first transmission device and a second transmission device are provided with a safety device to lock the lifting device when reaching a top, so as to prevent the lifting device from slipping to cause injuries.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
QUZHOU T-NINE TOOLS CO LTDNO 66 GAOTANG ROAD QUJIANG ECONOMIC DEVELOPMENT ZONE QUZHOU CITY ZHEJIANG PROVINCE 324000 QUZHOU CITY ZHEJIANG PROVINCE 324000

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Su, John Zhejiang, CN 17 64
Wang, Shuttle Zhejiang, CN 4 1

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