3889878

Information

• Patent Grant
• 3889878

• References
• Source

• Patent Number

  3,889,878

• Date Filed

  Not available

• Date Issued

  Tuesday, June 17, 1975
  49 years ago

• CPC

  • F16K11/074 - with flat sealing faces
  • F24D19/1033 - motor operated
  • F24D10/00 - District heating systems
  • Y02E20/14 - Combined heat and power generation [CHP]

• US Classifications

  • 237 - Heating systems
  • 236 - Automatic temperature and humidity regulation