2143820

Information

• Patent Grant
• 2143820

• References
• Source

• Patent Number

  2,143,820

• Date Filed

  Not available

• Date Issued

  Tuesday, January 10, 1939
  86 years ago

• CPC

  • G05D23/27535 - Details of the sensing element
  • G05D23/2754 - using bimetallic element
  • Y10T137/0329 - Mixing of plural fluids of diverse characteristics or conditions
  • Y10T137/2499 - Mixture condition maintaining or sensing
  • Y10T137/2511 - Fuel controlled by boiler or water system condition

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 073 - Measuring and testing
  • 110 - Furnaces
  • 122 - Liquid heaters and vaporizers
  • 137 - Fluid handling