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PCE
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CPC Subgroup
B25D 9/16

Valve arrangements therefor

Full Title

Portable percussive tools with fluid-pressure drive, , e.g. having several percussive tool bits operated simultaneously > Control devices for the reciprocating piston > Valve arrangements therefor

4 direct subcodes

Child Classifications

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  • B25D 9/18 involving a piston-type slide valve
  • B25D 9/20 involving a tubular-type slide valve
  • B25D 9/22 involving a rotary-type slide valve
  • B25D 9/24 involving a rocking-plate type valve