Hydraulic jack

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12139383
SERIAL NO

18428969

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Importance

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Abstract

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A hydraulic jack for providing safety and security is disclosed. The hydraulic jack comprises a hydraulic cylinder storing hydraulic fluid inside, and a piston installed in the hydraulic cylinder that is raised up from the hydraulic cylinder by pressure of the hydraulic fluid stored in the hydraulic cylinder, thereby a heavyweight can be lifted by the piston. The piston has at least one drill hole on its body thereof that has a determined diameter and is perpendicular to the piston. A security piece is attachable on a top portion of the hydraulic cylinder. The security piece comprises a pair of through holes, which align with at least one drill hole of the piston.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
WALTON K K INTERNATIONAL BUSINESS GROUP INC2226 BALSAN WAY WELLINGTON FL 33414

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yue, Qingsheng Wellington, US 4 4

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