3921900

Information

• Patent Grant
• 3921900

• References
• Source

• Patent Number

  3,921,900

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1975
  49 years ago

• CPC

  • F24F11/053 - by means responsive to temperature
  • F16K1/223 - with a plurality of valve members
  • G05D23/123 - the sensing element being placed within a regulating fluid flow
  • Y10T137/87442 - Rotary valve
  • Y10T137/87531 - Butterfly valve

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 137 - Fluid handling
  • 251 - Valves and valve actuation