Up-and-down driving device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11926513
APP PUB NO 20210371257A1
SERIAL NO

17328841

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An up-and-down driving device allows an up-and-down driving unit to move while supporting an object's load, in a support module in which the up-and-down driving unit is movably inserted into an inner space of a fixed housing. The up-and-down driving device includes: a driving means for moving the up-and-down driving unit in an up-and-down direction; a fixed-position compression spring main module including a fixed-position compression spring having one side fixed to a lower end of the housing and the other side supporting the up-and-down driving unit and mounted in a motion direction of the up-and-down driving unit; and a variable-position compression spring supplemental module including a variable-position compression spring having one side mounted rotatably to a side of the housing and the other side fastened rotatably to the up-and-down driving unit and configured to rotate while making a predetermined angle with the motion direction of the up-and-down driving unit.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
HUVITZ CO LTD38 BURIM-RO 170BEON-GIL DONGAN-GU ANYANG-SI GYEONGGI-DO 14055

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Chang Sung Gyeonggi-do, KR 6 15
Lee, Young Woo Gyeonggi-do, KR 179 846

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