3561731

Information

• Patent Grant
• 3561731

• References
• Source

• Patent Number

  3,561,731

• Date Filed

  Not available

• Date Issued

  Tuesday, February 9, 1971
  54 years ago

• CPC

  • F16K3/243 - Packings
  • F16K3/0227 - Packings
  • F16K3/029 - with two or more gates
  • F16K5/0407 - with particular plug arrangements
  • F16K5/0457 - Packings
  • Y10T137/86831 - Selective opening of plural ports
  • Y10T137/86919 - Sequentially closing and opening alternately seating flow controllers
  • Y10T137/87016 - Lost motion
  • Y10T137/8704 - First valve actuates second valve
  • Y10T137/88038 - One valve head carries other valve head

• US Classifications

  • 251 - Valves and valve actuation
  • 137 - Fluid handling