3204921

Information

• Patent Grant
• 3204921

• References
• Source

• Patent Number

  3,204,921

• Date Filed

  Not available

• Date Issued

  Tuesday, September 7, 1965
  60 years ago

• CPC

  • G05D23/127 - to control a gaseous fluid circulation
  • F16K31/566 - using a bistable spring device arranged symmetrically around the actuating stem

• US Classifications

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