Cryogenic storage vessel with station selector

• US 3,272,579 A
• Filed: 08/24/1964
• Issued: 09/13/1966
• Est. Priority Date: 08/24/1964
• Status: Expired due to Term

• Current Assignee: The First National Bank of Akron Trustee
• Original Assignee: Kenneth R. Leonard
• Inventors: Leonard, Kenneth R.
• Application Number:
  US04/391,553
• Time in Patent Office: 750 Days
• US Class Current: 312/400
• CPC Class Codes: F17C 3/08 by vacuum spaces, e.g. Dewar flask for household use A47J41/02
• CPC Class Codes: Y10S 220/901 Liquified gas content, cryogenic

Claims

1. A CRYOGENIC STORAGE VESSEL COMPRISING AN OUTER CYLINDRICAL MEMBER ADAPTED TO STAND IN AN UPRIGHT POSITION AND ENCLOSED AT ITS TOP AND BOTTOM, AN INNER STORAGE CONTAINER SUSPENDED WITHIN THE OUTER MEMBER IN SPACED RELATION THERETO AND DEFINING AN EVACUATED INSULATION SPACE THEREWITH, A HOLLOW MEMBER OF LOW HEAT-CONDUCTIVITY FITTED IN SEALED RELATION IN OPENINGS IN THE OUTER MEMBER AND INNER CONTAINER, A ROTARY SHAFT OF LOW HEAT-CONDUCTIVITY EXTENDING THROUGH THE HOLLOW MEMBER FROM OUTSIDE THE OUTER MEMBER INTO THE INNER CONTAINER THROUGH AN UPPER PORTION OF SAID INSULATION SPACE AND IN SPACED RELATION WITH THE HOLLOW MEMBER, AN ARTICLE SUPPORT CARRIED ON THE LOWER END OF SAID SHAFT AND HAVING A SERIES OF SUPPORT STATIONS AT THE PERIPHERY, A TUBULAR MEMBER EXTENDING FROM OUTSIDE THE OUTER MEMBER INTO THE STORAGE CONTAINER IN ALINEMENT WITH A SELECTED STATION OF THE ARTICLE SUPPORT SO AS TO PROVIDE AN ACCESS PASSAGE THERETO AND INTERCONNECTING THE OUTER MEMBER WITH THE INNER CONTAINER SO AS TO PROVIDE AN ACCESS PASSAGE THERETO AND SECOND POINT OF SUSPENSION OF THE INNER CONTAINER FROM THE OUTER MEMBER, A REMOVABLE PLUG NORMALLY CLOSING THE ACCESS PASSAGE, AND MEANS AT THE UPPER END OF THE SHAFT FOR MANUAL ROTATION TO BRING A SELECTED SUPPORT STATION IN REGISTER WITH THE ACCESS PASSAGE WITHOUT REMOVING THE PLUG.