Core barrel head, inner tube assembly provided with same, and inner tube recovery method

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United States of America Patent

PATENT NO 11814916
APP PUB NO 20220412177A1
SERIAL NO

17757160

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Abstract

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[Problem] To provide: a core barrel head capable of definitely recovering an inner tube in which a geological sample has been collected in a situation where excavation is performed in a horizontal direction and in a rising gradient direction; an inner tube assembly provided with said core barrel head; and an inner tube recovery method.

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Patent Owner(s)

Patent OwnerAddress
MIYAKO SHIGERUSAPPORO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miyako, Shigeru Sapporo, JP 2 0

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