2508253

Information

• Patent Grant
• 2508253

• References
• Source

• Patent Number

  2,508,253

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1950
  75 years ago

• CPC

  • F01B3/08 - the helices being arranged on the pistons
  • F04B25/02 - of stepped piston type
  • F04B27/0895 - driving means
  • F04B27/1081 - Casings, housings
  • F04B35/04 - the means being electric
  • F04B39/1073 - the members being reed valves
  • Y10S417/902 - Hermetically sealed motor pump unit

• US Classifications

  • 417 - Pumps