3613391

Information

• Patent Grant
• 3613391

• References
• Source

• Patent Number

  3,613,391

• Date Filed

  Not available

• Date Issued

  Tuesday, October 19, 1971
  53 years ago

• CPC

  • G05D16/2066 - using control means acting on the pressure source
  • F25B49/027 - Condenser control arrangements
  • G01L9/0026 - Transmitting or indicating the displacement of flexible, deformable tubes by electric, electro-mechanical, magnetic or electro-magnetic means
  • G01L9/0027 - using variations in ohmic resistance
  • G01L9/0035 - using variations in ohmic resistance
  • G01L9/0051 - using variations in ohmic resistance
  • F25B2600/111 - of condenser fans
  • F25B2700/195 - of the condenser
  • Y02B30/743 - Condensing pressure control
  • Y10S388/915 - Sawtooth or ramp waveform generator
  • Y10S388/918 - Trigger by unijunction transistor
  • Y10S388/921 - Timer or time delay means
  • Y10S388/929 - Fluid/granular material flow rate, pressure, or level
  • Y10S388/933 - Radiant energy responsive device
  • Y10S388/934 - Thermal condition

• US Classifications

  • 062 - Refrigeration
  • 318 - Electricity: motive power systems
  • 338 - Electrical resistors
  • 388 - Electricity: motor control systems