2961840

Information

• Patent Grant
• 2961840

• References
• Source

• Patent Number

  2,961,840

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1960
  64 years ago

• CPC

  • E21F17/16 - Modification of mine passages or chambers for storage purposes, especially for liquids or gases
  • E21D1/14 - Freezing apparatus
  • F17C3/005 - Underground or underwater containers or vessels
  • F17C2201/052 - large (>1000 m3)
  • F17C2203/032 - Multi-sheet layers
  • F17C2203/035 - Glass wool
  • F17C2203/0354 - Wood
  • F17C2203/0604 - Liners
  • F17C2203/0673 - Polymers
  • F17C2203/0678 - Concrete
  • F17C2221/035 - Propane butane
  • F17C2223/0153 - Liquefied gas
  • F17C2223/033 - Small pressure
  • F17C2227/0135 - Pumps
  • F17C2227/0157 - Compressors
  • F17C2227/0341 - using another fluid
  • F17C2250/032 - using computers
  • F17C2250/0439 - Temperature
  • F17C2250/0626 - Pressure
  • F17C2250/0631 - Temperature
  • F17C2250/072 - Action when predefined value is reached
  • F17C2260/032 - Avoiding freezing or defrosting
  • F17C2270/0149 - by digging cavities
  • F17C2270/016 - onshore

• US Classifications

  • 062 - Refrigeration
  • 405 - Hydraulic and earth engineering