US3630161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple purpose floating concrete ring
Assignee: Hydro Betong AB
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Filing: 1969-05-06
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Granted: 1971-12-28
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Expires: 1989-05-06
Abstract
Abstract A concrete structure usable in water for a large number of various purposes, as for instance for transporting and/or storing liquids having a lower density than that of the water, for protecting a given water surface against wave motions, as a floating or bottom-fixed support foundation for other structures in the water, for mooring other structures floating in the water, etc. includes a cylindrical concrete shell, which is preferably open at both its ends and has a total displacement in the water exceeding its total deadweight and is disposed in the water with its axis of symmetry substantially vertical. The wall structure of the cylindrical concrete shell includes a large number of cells usable as ballast and trim tanks for controlling the attitude and the buoyancy of the concrete shell in the water. The concrete shell or ring can be arranged floating in the water at the water surface or submerged to rest upon the sea bottom with a force determined by the amount of ballast filled into the ballast and trim tanks. When used for transporting and/or storing a liquid having a lower density than that of water, the cargo liquid is disposed in a floating position upon the water in the space enclosed by the cylindrical concrete shell.
Inventors
- 👤 Hans Christer Georgii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:02
CPC Classifications
E; E02; E02D; E02D27/00; E02D27/01; E02D27/04; E02D27/06; B; B65; B65D; B65D88/00; B65D88/78; E02D23/00; E02D23/02; E02D23/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
221 words
A concrete structure for storing and/or transporting in a body of water a liquid having a lower density than said water, for sheltering a restricted area of the surface of a body of water, for serving as a floating or bottom-fixed support foundation in a body of water, or for mooring another structure floating in a body of water respectively, said structure comprising a cylindrical ring of concrete disposed in said body of water with its axis of symmetry substantially vertical, said concrete ring having open opposite axial ends, said ring including a wall structure having a plurality of peripherally spaced, sealed, pressuretight cells extending in the axial direction of the ring between said opposite axial ends thereof, the volume of said cells being such relative to the volume of concrete in said ring that the ring has a maximum displacement in said body of water substantially exceeding the total deadweight of the ring, said ring having at least one further cell extending in the axial direction between the opposite ends serving as ballast and triM tanks with means for filling such cell with water to a variable extent for controlling the attitude, and/or the buoyancy of the concrete ring when floating in the body of water or its pressure against the bottom of the body of water when resting thereon.
Claim 2
Dependent Claim
221 words
A concrete structure for storing and/or transporting in a body of water a liquid having a lower density than said water, for sheltering a restricted area of the surface of a body of water, for serving as a floating or bottom-fixed support foundation in a body of water, or for mooring another structure floating in a body of water respectively, said structure comprising a cylindrical ring of concrete disposed in said body of water with its axis of symmetry substantially vertical, said concrete ring having open opposite axial ends, said ring including a wall structure having a plurality of peripherally spaced, sealed, pressuretight cells extending in the axial direction of the ring between said opposite axial ends thereof, the volume of said cells being such relative to the volume of concrete in said ring that the ring has a maximum displacement in said body of water substantially exceeding the total deadweight of the ring, said ring having at least one further cell extending in the axial direction between the opposite ends serving as ballast and triM tanks with means for filling such cell with water to a variable extent for controlling the attitude, and/or the buoyancy of the concrete ring when floating in the body of water or its pressure against the bottom of the body of water when resting thereon.
Claim 3
Dependent Claim
31 words
A concrete structure as claimed in claim 1 comprising a filler material in said concrete ring constituted as spheres and grains of polystyrene having a lower density than that of water.
Claim 4
Dependent Claim
17 words
A concrete structure as claimed in claim 1 wherein said cylindrical concrete ring is a right cylinder.
Claim 5
Dependent Claim
18 words
A concrete structure as claimed in claim 1 wherein said cylindrical concrete ring has an elliptical cross section.
Claim 6
Dependent Claim
27 words
A concrete structure as claimed in claim 1 wherein said concrete ring is floatable in water and includes an annular internal flange at its lower axial end.
Claim 7
Dependent Claim
36 words
A concrete structure as claimed in claim 1 wherein said concrete ring is floatable and includes a flexible, perforated membrane attached to the lower axial end of said concrete ring and covering the inner opening thereof.
Claim 8
Dependent Claim
107 words
A concrete structure as claimed in claim 1 wherein said concrete ring is floatable and comprises a first disc of heat-insulating material disposed inside said concrete ring so as to be axially movable therein and substantially covering the inner opening of the ring, said first disc having a density lower than that of water and higher than that of said low-temperature fluid, and a second disc of heat-insulating material disposed inside said concrete ring above said first disc so as to be axially movable therein and substantially covering the inner opening of the ring, said second disc having a density lower than that of said low-temperature fluid.
Claim 9
Dependent Claim
19 words
A concrete structure as claimed in claim 7 comprising a heat-insulating layer covering the inside of said concrete ring.
References Cited (Backward Citations)
US1441692A
Cited
US1460999A
Cited
FR860130A
Cited
US3029606A
Cited
US3457890A
Cited
US3512492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |