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US2776776A Expired / Lapsed US ⏱️ 0.0 years remaining

Liquefied gas container

Assignee: General Electric Co
•
Filing: 1952-07-11
•
Granted: 1957-01-08
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Expires: 1972-07-11
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Abstract

Abstract 726,482. Heat insulation. GENERAL ELECTRIC CO. June 17, 1953 [July 11, 1952], No. 16752/53. Class 64 (2). A vessel for storing liquefied gas has outer and inner walls 10, 11 of metal, such as stainless steel, carbon steels electroplated or vitreous enamelled, or those metals known under the Registered Trade Marks "Monel" and "Invar". Moreover, the evacuated space between these walls contains a blanket 13 of mineral fibres, e.g. slag wool, asbestos, aluminium oxide, glass or quartz, randomly orientated with their axes in planes generally perpendicular to the path of heat flow between the walls and preferably precompacted as described in Specification 715,175. Figures are given for the degree of vacuum, the density of the blanket and the diameter of the fibres. A further wall 14 divides the blanket 13 from a surface of the inner wall 11 which is made heat-reflecting like the surface of the wall 14 which faces it. The fibre blanket is made thicker for support of the inner wall where, as at 15, the wall 14 is interrupted. The tank, which may be spherical or cylindrical, has a filling and emptying pipe 19 extending through a bellows 16. A valve 21 permits periodical testing and evacuation of the insulation space.

Inventors

  • 👤 Herbert M Strong
  • 👤 Francis P Bundy

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 22:34
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/08; F17C13/081; F17C3/00; F17C3/02; F17C3/08; F17C3/085; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0128; F17C2203/00; F17C2203/01; F17C2203/014; F17C2203/03; F17C2203/0304; F17C2203/0345; F17C2203/035; F17C2203/0391; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0643; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/018; F17C2221/00; F17C2221/01; F17C2221/011; F17C2221/03; F17C2221/032; F17C2221/033; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2223/04; F17C2223/042; F17C2223/046; F17C2223/047; F17C2225/00; F17C2225/04; F17C2225/042; F17C2225/046; F17C2225/047; F17C2260/00; F17C2260/03; F17C2260/031; F17C2260/033; F17C2260/05; F17C2260/053

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 111 words
A LIQUEFIED GAS CONTAINER COMPRISING AN INNER METAL TANK POSITIONED WITHIN AN OUTER METAL TANK, SAID TANKS BE ING IN SPACED RELATION WHEREBY THERE IS AN EVACUATED SPACE BETWEEN THE WALLS OF SAID TANKS, THE SURFACE OF SAID INNER TANK FACING SAID EVACUATED SPACE BEING HIGHLY REFLECTIVE, A MEMBER POSITIONED WITHIN SAID EVACUATED SPACE AND SURROUNDING A MOJOR PORTION OF SAID INNER TANK AND DEFINING AT LEAST ONE OPEN AREA ADJACENT THE BASE OF SAID INNER TANK, SAID MEMBER BEING SPACED FROM SAID INNER TANK AND SAID OUTER TANK AND HAVING A HIGHLY REFLECTIVE SURFACE FACING THE HIGHLY REFLECTIVE SURFACE OF SAID INNER TANK, A BLANKET OF CLEAN, BINDER-FREE MINERAL INSULATING
Claim 2
Dependent Claim 111 words
A LIQUEFIED GAS CONTAINER COMPRISING AN INNER METAL TANK POSITIONED WITHIN AN OUTER METAL TANK, SAID TANKS BE ING IN SPACED RELATION WHEREBY THERE IS AN EVACUATED SPACE BETWEEN THE WALLS OF SAID TANKS, THE SURFACE OF SAID INNER TANK FACING SAID EVACUATED SPACE BEING HIGHLY REFLECTIVE, A MEMBER POSITIONED WITHIN SAID EVACUATED SPACE AND SURROUNDING A MOJOR PORTION OF SAID INNER TANK AND DEFINING AT LEAST ONE OPEN AREA ADJACENT THE BASE OF SAID INNER TANK, SAID MEMBER BEING SPACED FROM SAID INNER TANK AND SAID OUTER TANK AND HAVING A HIGHLY REFLECTIVE SURFACE FACING THE HIGHLY REFLECTIVE SURFACE OF SAID INNER TANK, A BLANKET OF CLEAN, BINDER-FREE MINERAL INSULATING

References Cited (Backward Citations)

US2643487A Cited
FR409113A Cited
US903878A Cited
US922174A Cited
US1463027A Cited
FR774292A Cited
US2054754A Cited
US2206059A Cited
US2160001A Cited
US2513749A Cited
US2552641A Cited
US2610757A Cited
US2643021A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1960-01-08 1960-07-09 1961-01-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1964-01-08 1964-07-09 1965-01-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1968-01-08 1968-07-09 1969-01-08 $7700.00 Window Closed / Lapsed

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