3630646

Information

• Patent Grant
• 3630646

• References
• Source

• Patent Number

  3,630,646

• Date Filed

  Not available

• Date Issued

  Tuesday, December 28, 1971
  53 years ago

• CPC

  • F04B19/02 - having movable cylinders
  • F04B7/0065 - being mounted on the main shaft
  • F04B7/04 - in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports

• US Classifications

  • 417 - Pumps