3534679

Information

• Patent Grant
• 3534679

• References
• Source

• Patent Number

  3,534,679

• Date Filed

  Not available

• Date Issued

  Tuesday, October 20, 1970
  54 years ago

• CPC

  • F15B11/08 - with only one servomotor
  • B30B15/186 - Controlling the return movement of the ram
  • F15B21/08 - Servomotor systems incorporating electrically operated control means
  • F15B2211/30525 - Directional control valves
  • F15B2211/325 - actuated by an output member of the circuit
  • F15B2211/327 - electrically or electronically
  • F15B2211/50509 - the pressure control means controlling a pressure upstream of the pressure control means
  • F15B2211/5159 - being connected to an output member and a return line
  • F15B2211/524 - actuated by an output member of the circuit
  • F15B2211/528 - actuated by fluid pressure
  • F15B2211/56 - Control of an upstream pressure
  • F15B2211/7053 - Double-acting output members
  • F15B2211/7716 - with automatic return
  • F15B2211/853 - during stopping
  • Y10T137/777 - Spring biased

• US Classifications

  • 100 - Presses
  • 072 - Metal deforming
  • 091 - Motors: expansible chamber type
  • 137 - Fluid handling