Slide valve, percussion device and method

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United States of America Patent

PATENT NO 9938770
APP PUB NO 20150083501A1
SERIAL NO

14378891

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Importance

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Abstract

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A slide valve for a hydraulic percussion device. The slide valve includes a transition surface that is arranged to alternately be subjected to a working pressure and a tank pressure to carry out a reciprocating movement when the percussion device is in use. The slide valve includes at least one channel that is open at one end of the slide valve, and at least one displaceable pin that is arranged inside the at least one channel.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
EPIROC DRILLING TOOLS AKTIEBOLAG737 25 FAGERSTA

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lundgren, Anders Degerhamn, SE 31 151

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