1858921

Information

• Patent Grant
• 1858921

• References
• Source

• Patent Number

  1,858,921

• Date Filed

  Not available

• Date Issued

  Tuesday, May 17, 1932
  92 years ago

• CPC

  • F04B3/00 - Machines or pumps with pistons coacting within one cylinder
  • F04B27/0456 - to cylindrical distribution members
  • F04B27/047 - with an actuating element at the outer ends of the cylinders
  • F04B39/0005 - adaptations of pistons
  • F04B39/064 - Cooling by a cooling jacket in the pump casing
  • F04B39/1033 - annular disc valves

• US Classifications

  • 417 - Pumps
  • 092 - Expansible chamber devices