3770012

Information

• Patent Grant
• 3770012

• References
• Source

• Patent Number

  3,770,012

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1973
  51 years ago

• CPC

  • F15B11/18 - used in combination for obtaining stepwise operation of a single controlled member
  • F15B13/043 - with electrically-controlled pilot valves
  • F16K11/022 - comprising a deformable member
  • G03B21/116 - Handling microfiches
  • G11B5/5521 - across disc tracks
  • Y10T137/2678 - Four port reversing valve
  • Y10T137/87209 - Electric
  • Y10T137/87764 - Having fluid actuator
  • Y10T137/87772 - With electrical actuation

• US Classifications

  • 137 - Fluid handling
  • 235 - Registers
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER