2620734

Information

• Patent Grant
• 2620734

• References
• Source

• Patent Number

  2,620,734

• Date Filed

  Not available

• Date Issued

  Tuesday, December 9, 1952
  72 years ago

• CPC

  • F04B9/02 - the means being mechanical
  • F04B1/02 - having two cylinders
  • F04B9/047 - the means being pin-and-slot mechanisms
  • F04B11/0066 - with special shape of the actuating element
  • F04B49/12 - by varying the length of stroke of the working members

• US Classifications

  • 417 - Pumps
  • 092 - Expansible chamber devices