3868991

Information

• Patent Grant
• 3868991

• References
• Source

• Patent Number

  3,868,991

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1975
  49 years ago

• CPC

  • F16K17/04 - spring-loaded
  • B60H1/00485 - Valves for air-conditioning devices
  • F16K1/40 - of helical shape
  • Y10S251/902 - Springs employed as valves
  • Y10T137/784 - Integral resilient member forms plural valves
  • Y10T137/7879 - Resilient material valve

• US Classifications

  • 165 - Heat exchange
  • 137 - Fluid handling
  • 251 - Valves and valve actuation