Hydraulic actuation device

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United States of America Patent

PATENT NO 12103094
APP PUB NO 20220388079A1
SERIAL NO

17775013

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Importance

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Abstract

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A hydraulic actuation device includes a tool, an actuation part having a pressure oil supply mechanism configured to send pressure oil from an oil chamber to the tool and return return oil from the tool to the oil chamber, an operation handle for adjusting oil passages for the pressure oil and the return oil in the pressure oil supply mechanism and configured to be able to be moved from an initial position, and biasing means configured to bias the operation handle toward the initial position when no external force is applied to the operation handle. When the operation handle moves from the initial position, the tool is actuated by the actuation part. When the operation handle is returned to the initial position by the biasing means, operation of the tool by the actuation part is stopped.

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Patent Owner(s)

Patent OwnerAddress
OGURA & CO LTD2661 HONGO EBINA-SHI KANAGAWA 2430417

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kimura, Kiyoshi Ebina, JP 203 2432

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