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United States of America Patent

PATENT NO 11628527
APP PUB NO 20210187678A1
SERIAL NO

17267824

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An ascent-detecting air supply port (33), a descent-detecting air supply port (43), and an air discharge port (44) are provided to a housing (2). The ascent-detecting air supply port (33) is communicatively connected to an air outlet (38) by an ascent-detecting air passage (39). The descent-detecting air supply port (43) is communicatively connected to the air discharge port (44) by a descent-detecting air passage (45). The descent-detecting air passage (45) is closed by a valve mechanism (49) including: a valve surface (50) provided on a piston portion (15); and a valve seat (51) provided on an inner surface of the housing (2), when an advance piston (14) is retracted to a lowered position.

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Patent Owner(s)

Patent OwnerAddress
KOSMEK LTD2-1-5 MUROTANI NISHI-KU KOBE-SHI HYOGO 651-2241

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yoshimura, Gaku Kobe, JP 14 70

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