Apparatus for measuring the level of cryogenic liquids

• US 3,371,533 A
• Filed: 02/15/1965
• Issued: 03/05/1968
• Est. Priority Date: 02/25/1964
• Status: Expired due to Term

• Current Assignee: Dumas, Guy H.
• Original Assignee: Dumas, Guy H.
• Inventors: Dumas, Guy H.
• Application Number:
  US04/432,627
• Time in Patent Office: 1,114 Days
• US Class Current: 73/295
• CPC Class Codes: F17C 13/021 having the height as the parameter
• CPC Class Codes: F17C 2201/0109 with exteriorly curved end-piece
• CPC Class Codes: F17C 2201/0119 with flat end-piece
• CPC Class Codes: F17C 2205/0149 Vessel mounted inside another one
• CPC Class Codes: F17C 2223/045 with a dip tube
• CPC Class Codes: F17C 2223/047 with a dip tube
• CPC Class Codes: G01F 23/247 for discrete levels

Claims