US4445566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latent heat storage means
Assignee: Individual
•
Filing: 1982-03-16
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Granted: 1984-05-01
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Expires: 2002-03-16
Abstract
Abstract Latent heat storage means having, fusible at a pre-determined temperature, a mass which is traversed by heat exchanger surfaces and which fills a container jointly with the heat exchanger, characterized in that the container is constructed as a cylindrical vessel while the heat exchangers are formed from elongated strips wound spirally about a vertical axis.
Inventors
- 👤 Karsten Laing
- 👤 Oliver Laing
- 👤 Inge Laing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:55
CPC Classifications
F; F28; F28D; F28D9/00; F28D9/04; F28D20/00; F28D20/02; F28D20/021; Y; Y02; Y02E; Y02E60/00; Y02E60/14
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
151 words
Latent heat storage means having a cylindrical housing, a heat storage mass in said housing, heat conveyor passages in said housing through which a heat carrier is adapted to flow to charge or discharge the storage mass, an inlet connector through which heat carrier flows into said housing and a discharge connector through which heat carrier flows out of said housing, characterized in that the heat conveyor passages comprise hollow bodies in the form of at least one converging spiral converging in the direction of heat carrier therethrough and at least one diverging spiral diverging in the direction of heat carrier therethrough, each said converging spiral communicating with each said diverging spiral at the center of said housing, all said spirals being concentric with said housing, a vertically extending manifold connecting all said converging spirals with one connector and a vertically extending header connecting all said diverging spirals with another connector.
Claim 2
Dependent Claim
151 words
Latent heat storage means having a cylindrical housing, a heat storage mass in said housing, heat conveyor passages in said housing through which a heat carrier is adapted to flow to charge or discharge the storage mass, an inlet connector through which heat carrier flows into said housing and a discharge connector through which heat carrier flows out of said housing, characterized in that the heat conveyor passages comprise hollow bodies in the form of at least one converging spiral converging in the direction of heat carrier therethrough and at least one diverging spiral diverging in the direction of heat carrier therethrough, each said converging spiral communicating with each said diverging spiral at the center of said housing, all said spirals being concentric with said housing, a vertically extending manifold connecting all said converging spirals with one connector and a vertically extending header connecting all said diverging spirals with another connector.
Claim 3
Dependent Claim
29 words
Latent heat storage means according to claim 1 further characterized in that the height of the cylindrical housing is less than its radius to form a comparatively flat unit.
Claim 4
Dependent Claim
28 words
Latent heat storage means according to claim 2 further characterized in that one said unit may be stacked on another said unit to form a stack of units.
Claim 5
Dependent Claim
20 words
Latent heat storage means according to claim 1 further characterized in having pumping means for re-mixing of segregating storage mass.
Claim 6
Dependent Claim
80 words
Latent heat storage means according to claim 4 further characterized in that said pumping means includes a closed cylinder, an inlet check valve in the bottom of said cylinder, an outlet check valve in the top of said cylinder, a corrugated member in said housing connected to a source of compressed air, and means for cyclically introducing compressed air in said corrugated member to cause said member to cyclically expand and contract to impart a pumping action within said cylinder.
Claim 7
Dependent Claim
19 words
Latent heat storage means according to claim 1 further characterized in that said pump means comprises a centrifugal impeller.
Claim 8
Dependent Claim
24 words
Latent heat storage means according to claim 4 further characterized in that a further heat conveyor is positioned at the bottom of said housing.
Claim 9
Dependent Claim
26 words
Latent heat storage means according to claim 4 further characterized in that said pump means conveys molten storage mass over the vertical extent of the housing.
Claim 10
Dependent Claim
26 words
Latent heat stroage means according to claim 1 further characterized in that said heat conveyor passages comprise an extruded profile having a plurality of passages therein.
Claim 11
Dependent Claim
18 words
Latent heat storage means according to claim 9 further characterized in that said conveyor passages form two groups.
Claim 12
Dependent Claim
39 words
Latent heat storage means according to claim 10 further characterized in that the two groups of passages are separated by a wall the thickness of which is at least twice as great as the wall thickness of the passages.
Claim 13
Dependent Claim
39 words
Latent heat storage means according to claim 10 further characterized in that a first group of passages comprises plates connected to one another by welded seams and a second group comprises plates connected to one another by projection welds.
Claim 14
Dependent Claim
33 words
Latent heat storage means according to claim 1 further characterized in having a gas filled space in said housing including a pressure sensitive switch for indicating when said storage mass has become charged.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |