3555483

Information

• Patent Grant
• 3555483

• References
• Source

• Patent Number

  3,555,483

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1971
  54 years ago

• CPC

  • G01F23/247 - for discrete levels
  • F17C13/026 - having the temperature as the parameter
  • G01F1/68 - by using thermal effects
  • F17C2201/0109 - with exteriorly curved end-piece
  • F17C2201/0119 - with flat end-piece
  • F17C2205/0326 - electrically actuated
  • F17C2205/0335 - Check-valves or non-return valves
  • F17C2221/017 - Helium
  • F17C2223/0161 - cryogenic
  • F17C2223/033 - Small pressure
  • F17C2227/0353 - using cryocooler
  • F17C2227/0386 - with a jacket
  • F17C2250/0443 - Flow or movement of content
  • F17C2250/061 - Level of content in the vessel
  • F17C2250/0673 - Time or time periods

• US Classifications

  • 338 - Electrical resistors
  • 062 - Refrigeration
  • 073 - Measuring and testing
  • 200 - Electricity: circuit makers and breakers
  • 340 - Communications: electrical
  • 374 - Thermal measuring and testing