3640501

Information

• Patent Grant
• 3640501

• References
• Source

• Patent Number

  3,640,501

• Date Filed

  Not available

• Date Issued

  Tuesday, February 8, 1972
  52 years ago

• CPC

  • F16K1/385 - contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
  • F04B53/1027 - the guiding means being provided at both sides of the disc
  • F04B53/1087 - Valve seats
  • Y10S137/902 - Slush pump check valves
  • Y10T137/7917 - Oppositely disposed
  • Y10T137/7919 - Guide and seat integral unit

• US Classifications

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