3116872

Information

• Patent Grant
• 3116872

• References
• Source

• Patent Number

  3,116,872

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1964
  61 years ago

• CPC

  • F04C25/02 - for producing high vacuum
  • F04C27/02 - Liquid sealing for high-vacuum pumps or for compressors
  • F04C2220/50 - Pumps with means for introducing gas under pressure for ballasting

• US Classifications

  • 418 - Rotary expansible chamber devices
  • 417 - Pumps