Injection device and molding machine

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12186955
APP PUB NO 20220168937A1
SERIAL NO

17436477

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A run-around circuit makes a hydraulic fluid discharged from a rod-side chamber along with a forward movement of a piston in an injection cylinder flow into a head-side chamber. A servo valve is provided in the run-around circuit and is connected to a tank. In a first state, the servo valve permits flow from the rod-side chamber to the head-side chamber, while prohibits flow from the rod-side chamber to the tank. In a second state, the servo valve prohibits flow from the rod-side chamber to the head-side chamber, while permits flow from the rod-side chamber to the tank. The servo valve can control the flow rate of the hydraulic fluid discharged from the rod-side chamber in each of the first state and second state.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
SHIBAURA MACHINE CO LTD2-2 UCHISAIWAICHO 2-CHOME CHIYODA-KU TOKYO 100-0011

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujioka, Toshiharu Isehara, JP 2 3
Hayase, Kazuma Yokohama, JP 1 1
Noda, Saburo Atsugi, JP 15 43
Tsuji, Makoto Yamato, JP 100 556
Yokoyama, Hiroshi Ebina, JP 168 2188

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