3837764

Information

• Patent Grant
• 3837764

• References
• Source

• Patent Number

  3,837,764

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1974
  50 years ago

• CPC

  • F04C28/02 - specially adapted for several pumps connected in series or in parallel
  • F04C25/02 - for producing high vacuum
  • F04C29/02 - Lubrication Lubricant separation
  • F04C2220/50 - Pumps with means for introducing gas under pressure for ballasting
  • F04C2240/70 - Use of multiplicity of similar components Modular construction

• US Classifications

  • 417 - Pumps
  • 418 - Rotary expansible chamber devices