3556689

Information

• Patent Grant
• 3556689

• References
• Source

• Patent Number

  3,556,689

• Date Filed

  Not available

• Date Issued

  Tuesday, January 19, 1971
  54 years ago

• CPC

  • A01C23/042 - Adding fertiliser to watering systems
  • B05B7/32 - the fed liquid or other fluent material being under pressure
  • F04B9/115 - reciprocating movement of the pumping members being obtained by two single-acting liquid motors, each acting in one direction
  • F04B19/022 - reciprocating cylinders
  • F04B53/10 - Valves Arrangement of valves
  • F04B53/127 - Disc valves
  • F04B53/14 - Pistons, piston-rods or piston-rod connections
  • F04B53/162 - Adaptations of cylinders
  • G05D11/00 - Ratio control

• US Classifications

  • 417 - Pumps