Patent US3902941A successfully refreshed from Google Patents.
US3902941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic tank design and method of manufacture
Assignee: Individual
•
Filing: 1973-04-17
•
Granted: 1975-09-02
•
Expires: 1993-04-17
Abstract
Abstract A vessel and method of manufacture of such vessel is provided for containment of a low temperature or cryogenic fluid. The wall of the vessel may be of a sandwich construction comprising a first layer of fiber reinforced polymer, a layer of gas expanded polymer foam and a second layer of fiber reinforced polymer similar to the first layer. Variations of the basic sandwich construction may be provided. The method of construction comprises a sandwich construction having a predetermined configuration to allow construction of a vessel having a cylindrical configuration, for example. The sandwich construction of the present invention allows suitable bonding of sections with a mixture of reinforcing fiber and polymer.
Inventors
- 👤 Daniel D Withers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:02
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/02; F17C3/04; B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/08; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/03; F17C2201/035; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0329; F17C2203/0333; F17C2203/0345; F17C2203/06; F17C2203/0634; F17C2203/0658; F17C2203/0663; F17C2209/00; F17C2209/23; F17C2209/232; F17C2209/238; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; F17C2260/00; F17C2260/03; F17C2260/031; F17C2260/033; F17C2270/00; F17C2270/01; F17C2270/0102; F17C2270/0105; F17C2270/011; F17C2270/0165; F17C2270/0168; F17C2270/0186; F17C2270/0189; Y; Y10; Y10S; Y10S220/00; Y10S220/902; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1064
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
58 words
A method of constructing a material for storing cryogenic matter, said metHod comprising the steps of fabricating first and second sections of a fiber-reinforced polymer, positioning said sections in a spaced position to each other, and injecting polymer foam in the space between said sections so that said sections are bonded to said polymer foam as it dries.
Claim 2
Independent Claim
58 words
A method of constructing a material for storing cryogenic matter, said metHod comprising the steps of fabricating first and second sections of a fiber-reinforced polymer, positioning said sections in a spaced position to each other, and injecting polymer foam in the space between said sections so that said sections are bonded to said polymer foam as it dries.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein said sections are positioned substantially parallel to each other.
Claim 4
Dependent Claim
37 words
The method of claim 1 and further including the steps of positioning said sections in substantially the same plane, and joining said sections to each other with a polymer and a mixture of polymer and reinforcing fiber.
Claim 5
Independent Claim
52 words
A method of constructing a vessel for storing cryogenic material, said method comprising the steps of fabricating a first panel section of fiber-reinforced polymer having a foam layer portion bonded to a first surface thereof, and bonding a second section of fiber-reinforced polymer to the other surface of said foam layer portion.
Claim 6
Independent Claim
52 words
A method of constructing a vessel for storing cryogenic material, said method comprising the steps of fabricating a first panel section of fiber-reinforced polymer having a foam layer portion bonded to a first surface thereof, and bonding a second section of fiber-reinforced polymer to the other surface of said foam layer portion.
Claim 7
Dependent Claim
32 words
The method of claim 4 and further including the additional step of slotting said bonded foam portion prior to bonding of said second section of fiber-reinforced polymer to the slotted foam portion.
Claim 8
Independent Claim
81 words
A METHOD FOR CONSTRUCTING CONTAINMENT MATERIAL FOR STORAGE OF FLUIDS IN THE CRYOGENIC TEMPERATURE REGIME, THE METHOD COMPRISING THE STEPS OF: FABRICATING A FIRST RIGID WALL OF POLYMER PLASTIC, SAID WALL HAVING FIRST AND SECOND SIDES, INTRODUCING A LAYER OF EXPANDED POLYMER FOAM AGAINST THE FIRST SIDE OF SAID FIRST RIGID WALL. ALLOWING SAID LAYER OF EXPANDED POLYMER FOAM TO CURE TO A HARDENED STATE, PRODUCING A PLURALITY OF SLOTS ACROSS THE EXPOSSED SURFACE OF SAID LAYER OF EXPANDED POLYMER FOAM,
Claim 9
Independent Claim
81 words
A METHOD FOR CONSTRUCTING CONTAINMENT MATERIAL FOR STORAGE OF FLUIDS IN THE CRYOGENIC TEMPERATURE REGIME, THE METHOD COMPRISING THE STEPS OF: FABRICATING A FIRST RIGID WALL OF POLYMER PLASTIC, SAID WALL HAVING FIRST AND SECOND SIDES, INTRODUCING A LAYER OF EXPANDED POLYMER FOAM AGAINST THE FIRST SIDE OF SAID FIRST RIGID WALL. ALLOWING SAID LAYER OF EXPANDED POLYMER FOAM TO CURE TO A HARDENED STATE, PRODUCING A PLURALITY OF SLOTS ACROSS THE EXPOSSED SURFACE OF SAID LAYER OF EXPANDED POLYMER FOAM,
Claim 10
Dependent Claim
45 words
The method of claim 6 wherein said slots are produced in a direction perpendicular to the plain of said first rigid wall of polymer plastic so that the temperature and volume compensation function of such slots is conducted into the sandwich towards that second wall.
Claim 11
Dependent Claim
23 words
The method of claim 6 wherein said slots are produced so as to communicate with said second side of said first rigid wall.
Claim 12
Dependent Claim
26 words
The method of claim 8 wherein said slots are produced in a direction perpendicular to said second side of said first rigid wall of polymer plastic.
Claim 13
Dependent Claim
100 words
The method of claim 6 wherein a plurality of integral rigid sandwiched constructions are produced, producing a series of groove means in the end surfaces of the expanded polymer foam of each integral rigid sandwich construction, disposing one of said integral rigid walls in adjacent abutting relation and, aligning the groove means in the end surfaces of said rigid abutting walls of polymer plastic, introducing polymer foam in said groove means contacting each end surface of said abutting rigid walls to thereby fuse said walls together in a manner insuring similar expansion and contraction characteristics in the respective laminate components.
Claim 14
Dependent Claim
53 words
The method of claim 10 including the additional step of welding the first and second sides of adjacent abutting first and second rigid walls by applying polymer plastic beads to the rigid wall intersections so as to thereby insure similar expansion and contraction characteristics in the surface area of the respective laminate components.
References Cited (Backward Citations)
US3272373A
Cited
US3400849A
Cited
US3416691A
Cited
US3557992A
Cited
US3650872A
Cited
US3792141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-01 | 1979-03-03 | 1979-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-01 | 1983-03-03 | 1983-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-01 | 1987-03-03 | 1987-09-02 | $7700.00 | Window Closed / Lapsed |