Patent US3793908A successfully refreshed from Google Patents.
Patent US4174009A successfully refreshed from Google Patents.
US4174009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Long-period thermal storage accumulators
Assignee: Individual
•
Filing: 1977-12-15
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Granted: 1979-11-13
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Expires: 1997-12-15
Abstract
Abstract A long-period storage accumulator for storing heat water is used as a storing medium. The water is enclosed in large thin-walled containers which are arranged under the ground. The water pressure forces acting on the container walls are carried by the surrounding of the container.
Inventors
- 👤 Nikolaus Laing
- 👤 Ingeborg Laing
- 👤 Oliver Laing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:51
CPC Classifications
G; G21; G21D; G21D1/00; G21D1/02; F; F01; F01K; F01K3/00; F28; F28D; F28D20/00; F28D20/0034; F28D20/0043; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02E60/00; Y02E60/14
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
101 words
A long-period heat storage accumulator comprising a wall structure for containing a large volume of hot water within the accumulator interior and having means for filling and removing hot water therefrom, the improvement comprising in that the wall structure comprises in part a flexible covering including tensioning ropes for holding said covering against vertical movement and in that said accumulator is adapted to be completely submerged in water whereby the pressure of the hot water exerting forces on said wall structure is counteracted in part by the pressure of the water exterior of the accumulator exerting forces on the wall structure.
Claim 2
Dependent Claim
101 words
A long-period heat storage accumulator comprising a wall structure for containing a large volume of hot water within the accumulator interior and having means for filling and removing hot water therefrom, the improvement comprising in that the wall structure comprises in part a flexible covering including tensioning ropes for holding said covering against vertical movement and in that said accumulator is adapted to be completely submerged in water whereby the pressure of the hot water exerting forces on said wall structure is counteracted in part by the pressure of the water exterior of the accumulator exerting forces on the wall structure.
Claim 3
Dependent Claim
21 words
A long-period heat storage accumulator according to claim 1 having in addition rock adjoining the wall structure exterior of the accumulator.
Claim 4
Dependent Claim
50 words
A long-period heat storage accumulator according to claim 2 wherein said wall structure comprises in part a top wall and where said rock lies on said top wall and where the weight of the rock is approximately equal to the forces exerted by the hot water on said top wall.
Claim 5
Dependent Claim
24 words
A long-period heat storage accumulator according to claim 1 having in addition weights connected to said covering to prevent vertical movement of said covering.
Claim 6
Dependent Claim
20 words
A long-period heat storage accumulator according to claim 4 wherein said weights are connected to said covering by tensioning ropes.
Claim 7
Dependent Claim
31 words
A long-period heat storage accumulator according to claim 4 including in addition a plurality of floats in the water exterior of the accumulator connected to said covering to support the same.
Claim 8
Dependent Claim
30 words
A long-period heat storage accumulator according to claim 1 wherein said covering is in the form of a membrane having a specific weight greater than that of the hot water.
Claim 9
Dependent Claim
24 words
A long-period heat storage accumulator according to claim 1 wherein said flexible covering has a plastic foil layer facing the exterior of the accumulator.
Claim 10
Dependent Claim
41 words
A long-period heat storage accumulator according to claim 1 having in addition an insulating layer adjoining said covering facing the interior of the accumulator where said layer comprises a hydraulically and thermally resistant material which is penetrated by the hot water.
Claim 11
Dependent Claim
24 words
A long-period heat storage accumulator according to claim 1 wherein the portion of the wall structure facing the hot water includes a wire gauze.
Claim 12
Dependent Claim
41 words
A long-period heat storage accumulator according to claim 1 wherein said wall structure comprises in part a horizontal wall and having in addition a bellows-type body associated with said horizontal wall to accommodate varying volumes of hot water in said accumulator.
Claim 13
Dependent Claim
93 words
A long-period heat storage accumulator according to claim 1 having in addition a flow machine connecting the interior of the accumulator with a heat sink and a flow machine connecting the interior of the accumulator with a heat source and wherein the flow machines produce a change of pressure of the hot water within the accumulator which approximately correspond to the depth that the accumulator is submerged into the exterior water such that the hydrostatic pressure of the exterior water extending over the depth does not exert any additional pressure on the accumulator.
Claim 14
Dependent Claim
45 words
A long-period heat storage accumulator according to claim 12 wherein one of the flow machines is a pump and the other flow machine is a turbine and having in addition an electric motor generator to which both flow machines are connected by a single shaft.
Claim 15
Dependent Claim
28 words
A long-period heat storage accumulator according to claim 1 wherein the wall structure comprises in part rings, the hoop load capacity of which increases in the upward direction.
Claim 16
Dependent Claim
45 words
A long-period heat storage accumulator according to claim 1 wherein the flexible covering is in the form of a membrane having a specific weight less than that of the hot water and wherein the tensioning ropes connect the covering with the bottom of the accumulator.
Claim 17
Dependent Claim
35 words
A long-period heat storage accumulator according to claim 1 wherein said means for filling and removing hot water therefrom comprise vertical adjustable piping for filling and removing said water from various levels in said accumulator.
Claim 18
Dependent Claim
49 words
A long-period heat storage accumulator according to claim 16 having in addition a heat source adapted to be cooled with water from within said accumulator removed at a lower level thereof and wherein water heated by said heat source is filled into said accumulator at a higher level thereof.
Claim 19
Dependent Claim
101 words
A long-period heat storage accumulator according to claim 17 adapted for use with a power station and having in addition means for removing water from a low level of said accumulator to a power station to cool the same when operating in a peak load condition and returning the water to fill the accumulator at an intermediate level and in addition having means for removing water from an intermediate level of said accumulator and conveying it to a power station to cool the same under a low load operation and returning the water to fill the accumulator at a high level.
Claim 20
Dependent Claim
49 words
A long-period heat storage accumulator according to claim 1 having in addition connecting pipelines connecting the accumulator with a river whereby during periods when the river can absorb high thermal loads part of the hot water contained within the accumulator may be removed through the pipelines to the river.
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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) | 1982-11-12 | 1983-05-14 | 1983-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-12 | 1987-05-14 | 1987-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-12 | 1991-05-14 | 1991-11-13 | $7700.00 | Window Closed / Lapsed |