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US3485409A Expired / Lapsed US ⏱️ 0.0 years remaining

Tankship container for liquefied gas

Assignee: Linde GmbH
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Filing: 1967-08-28
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Granted: 1969-12-23
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Expires: 1987-08-28
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Abstract

Abstract 1,138,127. Ships' fittings &c. LINDE A.G. 30 Aug., 1967 [1 Sept., 1966], No. 39559/67. Heading B7S. [Also in Division F4] The thin flat metal walls of a generally rectangular liquefied gas storage container are spaced by a supporting layer of heat-insulation material 11, Fig. 2, from the inner plating 10 of a ship's hull and the marginal edges of each wall 1 are rigidly secured by screw bolts 7 to said inner plating 10 and the metal of which the container is made, e.g. aluminium, is such that on initial cooling the walls are plastically deformed resulting in permanent folds being formed when the container is rewarmed. The bolts 7 pass through relatively thick profiled aluminium sections 2 which are welded along thin margins 3, Fig. 1, to adjacent wall plates 1. In each corner of the container the margin sections 3 are welded to edge extensions 5 of a cube-shaped element 4 through which bolts 8 pass to the inner plating 10. An inner liquidholding shell 13 is spaced by resilient insulation 12, e.g. slag wool, from the walls 1 and has spaced feet 14 only one of which is shown resting on insulation blocks 15, 16 between which the bottom wall 1 passes. A shear rail 23 fixed to the bottom of the inner shell 13 is anchored in a groove formed by metal strips 17 welded to the bottom of the hull and insulation blocks 20, 21. A rigid channel-section 21 of the bottom wall 1 is also anchored in the grooves.

Inventors

  • 👤 Rudolf Becker

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 20:56
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/02; F17C3/025; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0337; F17C2203/0345; F17C2203/035; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0631; F17C2203/0634; F17C2203/0636; F17C2203/0646; F17C2209/00; F17C2209/22; F17C2209/228; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2270/00; F17C2270/01; F17C2270/0102; F17C2270/0105

Claims Analysis

Total Claims: 0
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-12-22 1973-06-23 1973-12-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-12-22 1977-06-23 1977-12-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-12-22 1981-06-23 1981-12-23 $7700.00 Window Closed / Lapsed

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