3878402

Information

• Patent Grant
• 3878402

• References
• Source

• Patent Number

  3,878,402

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1975
  49 years ago

• CPC

  • G01L23/12 - by changing capacitance or inductance
  • F02C9/28 - Regulating systems responsive to plant or ambient parameters
  • G01L23/00 - Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
  • F05D2270/09 - to cope with emergencies
  • F05D2270/10 - to cope with, or avoid, compressor flow instabilities

• US Classifications

  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems