3908767

Information

• Patent Grant
• 3908767

• References
• Source

• Patent Number

  3,908,767

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1975
  49 years ago

• CPC

  • F01L25/06 - Arrangement with main and auxiliary valves, at least one of them being fluid-driven
  • B06B1/183 - operating with reciprocating masses
  • B25D9/145 - for hydraulically actuated hammers having an accumulator
  • B25D9/20 - involving a tubular-type slide valve
  • B25D9/26 - Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
  • F01L21/02 - Piston or piston-rod used as valve members
  • F03C1/007 - with single cylinder, double-acting piston
  • B25D2209/002 - Pressure accumulators
  • B25D2209/007 - having a tubular-slide valve, which is not coaxial with the piston

• US Classifications

  • 173 - Tool driving or impacting
  • 091 - Motors: expansible chamber type