1920014

Information

• Patent Grant
• 1920014

• References
• Source

• Patent Number

  1,920,014

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1933
  91 years ago

• CPC

  • F04B43/0736 - with two or more pumping chambers in parallel
  • F01L23/00 - Valves controlled by impact by piston
  • F04B9/1222 - the return stroke being obtained by an elastic fluid under pressure
  • F04B43/1136 - with two or more pumping chambers in parallel

• US Classifications

  • 417 - Pumps
  • 091 - Motors: expansible chamber type
  • 092 - Expansible chamber devices