3402889

Information

• Patent Grant
• 3402889

• References
• Source

• Patent Number

  3,402,889

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1968
  56 years ago

• CPC

  • G05D16/0697 - using several membranes
  • F23N1/007 - using mechanical means
  • F23N5/105 - using electrical or electromechanical means
  • G05D16/163 - using one or several membranes
  • F23N2035/16 - variable flow or proportional valves
  • F23N2035/20 - Membrane valves
  • F23N2035/24 - Valve details

• US Classifications

  • 236 - Automatic temperature and humidity regulation