3544239

Information

• Patent Grant
• 3544239

• References
• Source

• Patent Number

  3,544,239

• Date Filed

  Not available

• Date Issued

  Tuesday, December 1, 1970
  54 years ago

• CPC

  • F04B53/1032 - Spring-actuated disc valves
  • F01L23/00 - Valves controlled by impact by piston
  • F01L33/04 - oscillatory
  • F04B9/1207 - using a source of partial vacuum or sub-atmospheric pressure
  • F04B9/125 - reciprocating movement of the pumping member being obtained by a double-acting elastic-fluid motor
  • F04B53/121 - the valve being an annular ring surrounding the piston
  • F04B53/14 - Pistons, piston-rods or piston-rod connections
  • F04B53/164 - Stoffing boxes

• US Classifications

  • 417 - Pumps
  • 091 - Motors: expansible chamber type