Two-piston hydraulic striking device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11072977
APP PUB NO 20200181978A1
SERIAL NO

16313314

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Importance

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Abstract

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Provided is a two-piston hydraulic striking device that has stable operativity. This two-piston hydraulic striking device includes two striking mechanisms for striking one transfer member. Each striking mechanism has a pressure receiving area ratio between the front and rear of a piston thereof set in such a way that the two striking mechanisms have the same cycle time.

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Patent Owner(s)

Patent OwnerAddress
FURUKAWA ROCK DRILL CO LTD2-6-4 OTEMACHI CHIYODA-KU TOKYO 100-8370

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koizumi, Masahiro Takasaki, JP 44 1047
Matsuda, Toshio Takasaki, JP 38 403

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