3860170

Information

• Patent Grant
• 3860170

• References
• Source

• Patent Number

  3,860,170

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1975
  50 years ago

• CPC

  • G05D23/024 - the sensing element being of the rod type, tube type, or of a similar type
  • G05D16/0672 - using several spring-loaded membranes
  • G05D27/00 - Simultaneous control of variables covered by two or more of the preceding main groups
  • Y10T137/0947 - With servo connection to valve
  • Y10T137/7782 - With manual or external control for line valve

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 137 - Fluid handling