US3689738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vessel for meltable heat storage masses
Assignee: Individual
•
Filing: 1970-07-13
•
Granted: 1972-09-05
•
Expires: 1990-07-13
Abstract
Abstract A tapered vessel having a horizontal metallic base plate and vertically extending deformable plastic side walls contains a meltable crystalline heat storage mass having a greater density in its solid than liquid states whereby the mass is urged against the base plate by gravity. A first electric heater is disposed adjacent the base plate for melting the mass. A second electric heater of less heat output than the first heater extends vertically along a side wall of the vessel to form a connecting channel to relieve excess pressures in the region between the base plate and the bottom of the mass. The vessel is provided with corrugated heat exchange ribs to dissipate the stored heat to the air.
Inventors
- 👤 Nikolaus Laing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:08
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/34; F24H; F24H7/00; F24H7/002
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
159 words
A vessel having a horizontally extending base plate and vertically extending side walls for containing a meltable heat storage mass, said vessel having a first heater for melting the storage mass, a heat exchange arrangement for removing the heat of crystallization which is produced during solidification of the storage mass, and a storage mass having different densities in its solid and liquid states; characterized in that said first heater is disposed in a substantially horizontal plane adjacent said base plate, that the crystalline portion of the storage mass is urged against the base plate by gravity, and that the vertically extending walls define a tapered shape, the vessel being wider at its base, and having in addition a second heater which extends vertically from the first heater along a portion of the side walls to approximately the portion of the vessel opposite said base plate and where said first heater has a greater thermal output than the second heater.
Claim 2
Dependent Claim
159 words
A vessel having a horizontally extending base plate and vertically extending side walls for containing a meltable heat storage mass, said vessel having a first heater for melting the storage mass, a heat exchange arrangement for removing the heat of crystallization which is produced during solidification of the storage mass, and a storage mass having different densities in its solid and liquid states; characterized in that said first heater is disposed in a substantially horizontal plane adjacent said base plate, that the crystalline portion of the storage mass is urged against the base plate by gravity, and that the vertically extending walls define a tapered shape, the vessel being wider at its base, and having in addition a second heater which extends vertically from the first heater along a portion of the side walls to approximately the portion of the vessel opposite said base plate and where said first heater has a greater thermal output than the second heater.
Claim 3
Dependent Claim
28 words
A storage vessel according to claim 1 characterized in that at least the portions of the walls of the vessel which are not heated comprise a plastic material.
Claim 4
Dependent Claim
15 words
A storage vessel according to claim 2 characterized in that said base plate is metallic.
Claim 5
Dependent Claim
39 words
A storage vessel according to claim 2 characterized in that the portion of the side walls that are of a plastic material are deformable whereby the storage mass when in a solid state can move vertically in the vessel.
Claim 6
Dependent Claim
15 words
A storage vessel according to claim 1 characterized in that said base plate is metallic.
References Cited (Backward Citations)
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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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |