Jack with double high-pressure structure

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United States of America Patent

PATENT NO 11814272
SERIAL NO

17467476

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Abstract

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A jack with a double high-pressure structure is provided, including a base, a pump body installed on the base, an oil cylinder, an oil drain valve, and a safety valve. The base is provided with a low-pressure check valve and a high-pressure check valve A. It is characterized in that a high-pressure check valve B is also installed on the base. The present invention can improve the safety performance during use and prolong the service life.

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Patent Owner(s)

Patent OwnerAddress
FUYANG TONGLI INDUSTRIAL CO LTDDEER HILL STREET FUYANG CITY HANGZHOU CITY ZHEJIANG TONGHUI ROAD NO 8 HANGZHOU CITY ZHEJIANG PROVINCE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
He, Weixiang Hangzhou, CN 4 0
He, Yufeng Hangzhou, CN 15 49
Sun, Gang Hangzhou, CN 134 1808

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