2674953

Information

• Patent Grant
• 2674953

• References
• Source

• Patent Number

  2,674,953

• Date Filed

  Not available

• Date Issued

  Tuesday, April 13, 1954
  70 years ago

• CPC

  • F04C18/3442 - the surfaces of the inner and outer member, forming the inlet and outlet opening
  • F04C2220/12 - Dry running
  • F04C2220/40 - Pumps with means for venting areas other than the working chamber

• US Classifications

  • 418 - Rotary expansible chamber devices