US3941272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic transport
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1974-03-27
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Granted: 1976-03-02
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Expires: 1994-03-27
Abstract
Abstract Improved system for mounting an aluminum cryogenic liquid holding tank within and integrating such tank to an outer ferrous metal envelope or hull structure wherein improved composite aluminum-ferrous metal transition insert elements are employed to interconnect the exterior surfaces of the aluminum tank to the interior surfaces of the ferrous metal envelope or hull structure.
Inventors
- 👤 Hollis G. McLaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:02
CPC Classifications
B; B63; B63B; B63B25/00; B63B25/02; B63B25/08; B63B25/12; B63B25/16; F; F17; F17C; F17C3/00; F17C3/02; F17C3/025; F17C2201/00; F17C2201/05; F17C2201/052; F17C2203/00; F17C2203/01; F17C2203/014; F17C2203/015; F17C2203/03; F17C2203/0304; F17C2203/0308; F17C2203/032; F17C2203/0329; F17C2203/0333; F17C2203/0354; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0631; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0646; F17C2209/00; F17C2209/22; F17C2209/221; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/033; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2227/00; F17C2227/03; F17C2227/0302; F17C2227/0309; F17C2227/0311; F17C2227/0313; F17C2260/00; F17C2260/01; F17C2260/011; F17C2260/016; F17C2270/00; F17C2270/01; F17C2270/0102; F17C2270/0105; F17C2270/011; Y; Y10; Y10S; Y10S220/00; Y10S220/901
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
171 words
A system for anchoring a cryogenic liquid holding tank of aluminum metal construction to and integrating such tank with an outer envelope-like supporting structure of ferrous metal comprising the combination of an aluminum cryogenic liquid holding tank, cryogenic insulation secured to the interior metal surfaces of the cryogenic liquid holding tank, a ferrous metal envelope-like supporting structure encompassing in spaced relation at least the major outer surface portions of the cryogenic liquid holding tank and transition connector means anchoring the aluminum cryogenic liquid holding tank to and fully integrating the said tank with the ferrous metal envelope-like supporting structure to form a composite stress resistant unit, said transition connector means including bonded together composite aluminum and ferrous metal transition stringer inserts interposed between the tank and said supporting structure the aluminum portion of an insert being directly and rigidly connected to the outer surfaces of the aluminum cryogenic liquid holding tank while the ferrous metal portion of an insert being directly and rigidly connected to the ferrous metal envelope-like supporting structure.
Claim 2
Independent Claim
171 words
A system for anchoring a cryogenic liquid holding tank of aluminum metal construction to and integrating such tank with an outer envelope-like supporting structure of ferrous metal comprising the combination of an aluminum cryogenic liquid holding tank, cryogenic insulation secured to the interior metal surfaces of the cryogenic liquid holding tank, a ferrous metal envelope-like supporting structure encompassing in spaced relation at least the major outer surface portions of the cryogenic liquid holding tank and transition connector means anchoring the aluminum cryogenic liquid holding tank to and fully integrating the said tank with the ferrous metal envelope-like supporting structure to form a composite stress resistant unit, said transition connector means including bonded together composite aluminum and ferrous metal transition stringer inserts interposed between the tank and said supporting structure the aluminum portion of an insert being directly and rigidly connected to the outer surfaces of the aluminum cryogenic liquid holding tank while the ferrous metal portion of an insert being directly and rigidly connected to the ferrous metal envelope-like supporting structure.
Claim 3
Dependent Claim
21 words
A system as set forth in claim 1 wherein the ferrous metal envelope-like supporting structure comprises the hull of a vessel.
Claim 4
Dependent Claim
57 words
A system as set forth in claim 1, wherein the cryogenic insulation comprises alternate layers of cryogenic foam insulating material and thin aluminum foil membranes with the portion of the insulation that is adapted to be in direct contact with the tank liquid comprising a thin aluminum foil membrane that serves as the primary liquid containment barrier.
Claim 5
Dependent Claim
18 words
A system as set forth in claim 1, wherein the cryogenic liquid holding tank includes corrugated wall portions.
Claim 6
Dependent Claim
27 words
A system as set forth in claim 1, wherein the aluminum portion of an insert has a greater width than the ferrous metal portion of an insert.
Claim 7
Independent Claim
173 words
A system for anchoring a cryogenic liquid holding tank of aluminum metal construction to and integrating such tank with an outer envelope-like supporting hull structure of ferrous metal comprising the combination of an aluminum cryogenic liquid holding tank, cryogenic insulation anchored to the interior surfaces of the aluminum cryogenic liquid holding tank, a ferrous metal envelope-like supporting hull structure encompassing in spaced relation at least the major outer surface portions of the aluminum cryogenic liquid holding tank and transition connector means interposed between the tank and hull structure and anchoring the aluminum cryogenic liquid holding tank to and integrating such tank with the ferrous metal envelope-like supporting hull structure to form a composite stress resistant unit, said transition connector means including aluminum stringer elements rigidly and directly connected to the outer surfaces of the aluminum tank and ferrous metal stringer elements rigidly and directly connected to the inner surface of the ferrous metal envelope-like supporting hull structure and said aluminum and ferrous metal elements also being directly and rigidly bonded to each other.
Claim 8
Independent Claim
173 words
A system for anchoring a cryogenic liquid holding tank of aluminum metal construction to and integrating such tank with an outer envelope-like supporting hull structure of ferrous metal comprising the combination of an aluminum cryogenic liquid holding tank, cryogenic insulation anchored to the interior surfaces of the aluminum cryogenic liquid holding tank, a ferrous metal envelope-like supporting hull structure encompassing in spaced relation at least the major outer surface portions of the aluminum cryogenic liquid holding tank and transition connector means interposed between the tank and hull structure and anchoring the aluminum cryogenic liquid holding tank to and integrating such tank with the ferrous metal envelope-like supporting hull structure to form a composite stress resistant unit, said transition connector means including aluminum stringer elements rigidly and directly connected to the outer surfaces of the aluminum tank and ferrous metal stringer elements rigidly and directly connected to the inner surface of the ferrous metal envelope-like supporting hull structure and said aluminum and ferrous metal elements also being directly and rigidly bonded to each other.
Claim 9
Dependent Claim
25 words
A system as set forth in claim 6, wherein an aluminum stringer element is bonded by pressure welding to its associated ferrous metal stringer element.
Claim 10
Dependent Claim
18 words
A system as set forth in claim 6, wherein at least certain of the stringer elements are perforated.
Claim 11
Dependent Claim
18 words
A system as set forth in claim 6, wherein certain wall portions of the aluminum tank are corrugated.
Claim 12
Dependent Claim
39 words
A system as set forth in claim 6, wherein at least certain of the stringer elements are perforated and means are provided for circulating the air in a space between said aluminum tank and said envelope-like supporting hull structure.
Claim 13
Dependent Claim
43 words
A system as set forth in claim 6 wherein the aluminum stringer elements have a substantially greater width than the ferrous metal stringer elements and extend across the major portion of the space between the aluminum tank and the ferrous metal hull structure.
Claim 14
Dependent Claim
28 words
A system as set forth in claim 6 wherein said ferrous metal hull structure is enclosed within and secured to a further and outermost ferrous metal hull structure.
Claim 15
Dependent Claim
48 words
A system as set forth in claim 6, wherein said cryogenic insulation is comprised of alternating layers of cryogenic foam insulating material and thin aluminum foil membranes with the portion of the insulation that is in direct contact with the tank liquid comprising a thin aluminum foil membrane.
Claim 16
Dependent Claim
50 words
A system as set forth in claim 6, wherein the transition connector stringer elements comprise composite aluminum and stainless steel inserts pressure welded to a soft aluminum alloy bonding element sandwiched therebetween and said inserts being pressure welded together at a point located closely adjacent the ferrous metal hull structure.
Claim 17
Dependent Claim
74 words
A system as set forth in claim 6, including transverse bulkheads interconnected with said aluminum tank said hull structure and said transition connector means, said bulkheads comprising transition inserts made up of aluminum and steel portions pressure welded to each other, and with the aluminum portion of an insert being affixed to another element of aluminum metal and with the ferrous metal portion of an insert being affixed to an element of ferrous metal.
Claim 18
Independent Claim
229 words
A system for anchoring a cryogenic bulk liquid holding tank of aluminum metal construction to and integrating such tank with an outer envelope-like supporting hull structure of ferrous metal comprising the combination of an aluminum cryogenic bulk liquid holding tank, cryogenic insulation anchored to the interior surfaces of the aluminum tank, said insulation comprising alternate layers of relatively rigid closed cell polyurethane foam material and thin aluminum foil membranes with the portion of the insulation that is exposed to and in direct contact with the liquid in the tank being an aluminum foil membrane, a ferrous metal envelope-like supporting hull structure encompassing in spaced relation at least the major outer surface portions of the aluminum liquid holding tank and transition connector means interposed between the tank and hull structure and anchoring the aluminum liquid holding tank to and integrating such tank with the ferrous metal envelope-like supporting hull structure to form a composite stress resistant unit, said transition connector means comprising a plurality of spaced composite stringer elements each of which is made up of an aluminum portion affixed directly and rigidly to said aluminum tank's outer surfaces and a ferrous metal portion affixed directly and rigidly to the inner surface of the ferrous metal envelope-like supporting hull structure and the aluminum and ferrous metal portions of a stringer element also being directly and rigidly bonded to each other.
Claim 19
Independent Claim
229 words
A system for anchoring a cryogenic bulk liquid holding tank of aluminum metal construction to and integrating such tank with an outer envelope-like supporting hull structure of ferrous metal comprising the combination of an aluminum cryogenic bulk liquid holding tank, cryogenic insulation anchored to the interior surfaces of the aluminum tank, said insulation comprising alternate layers of relatively rigid closed cell polyurethane foam material and thin aluminum foil membranes with the portion of the insulation that is exposed to and in direct contact with the liquid in the tank being an aluminum foil membrane, a ferrous metal envelope-like supporting hull structure encompassing in spaced relation at least the major outer surface portions of the aluminum liquid holding tank and transition connector means interposed between the tank and hull structure and anchoring the aluminum liquid holding tank to and integrating such tank with the ferrous metal envelope-like supporting hull structure to form a composite stress resistant unit, said transition connector means comprising a plurality of spaced composite stringer elements each of which is made up of an aluminum portion affixed directly and rigidly to said aluminum tank's outer surfaces and a ferrous metal portion affixed directly and rigidly to the inner surface of the ferrous metal envelope-like supporting hull structure and the aluminum and ferrous metal portions of a stringer element also being directly and rigidly bonded to each other.
Claim 20
Dependent Claim
18 words
A system as set forth in claim 16, wherein at least certain of the stringer elements are perforated.
Claim 21
Dependent Claim
18 words
A system as set forth in claim 16 wherein certain wall portions of the aluminum tank are corrugated.
Claim 22
Dependent Claim
55 words
A system as set forth in claim 18, including separate rigid blocks of closed cell polyurethane foam disposed in the recessed portions of the corrugations that open inwardly toward the inside of the tank and forming in conjunction with the corrugations backup and supporting surfaces for a further layer of rigid closed cell polyurethane foam.
Claim 23
Dependent Claim
39 words
A system as set forth in claim 16, wherein at least certain of the stringer elements are perforated and means are provided for circulating the air in a space between said aluminum tank and said envelope-like supporting hull structure.
Claim 24
Dependent Claim
45 words
A system as set forth in claim 16 wherein the aluminum portion of a stringer element has a substantially greater width than the ferrous metal portion and extends across the major portion of the space between the aluminum tank and the ferrous metal hull structure.
Claim 25
Dependent Claim
28 words
A system as set forth in claim 16 wherein said ferrous metal hull structure is enclosed within and secured to a further and outermost ferrous metal hull structure.
Claim 26
Dependent Claim
51 words
A system as set forth in claim 16, wherein a stringer element comprises aluminum and stainless steel portions pressure welded to a soft aluminum alloy bonding element sandwiched therebetween and with the pressure welded areas of said aluminum and stainless steel portions being located closely adjacent the ferrous metal hull structure.
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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) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |