2277991

Information

• Patent Grant
• 2277991

• References
• Source

• Patent Number

  2,277,991

• Date Filed

  Not available

• Date Issued

  Tuesday, March 31, 1942
  82 years ago

• CPC

  • F04B1/1136 - the rotary cylinder being provided with only one piston, reciprocating within the cylinder
  • F04B49/128 - by changing the eccentricity of the cylinders
  • F04B53/1037 - Flap valves
  • Y10T74/18024 - Rotary to reciprocating and rotary

• US Classifications

  • 074 - Machine element or mechanism
  • 091 - Motors: expansible chamber type
  • 184 - Lubrication
  • 417 - Pumps