US4241782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat storage system adapted for incongruently melting heat storage materials and congruently melting heat storage materials
Assignee: Individual
•
Filing: 1978-11-30
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Granted: 1980-12-30
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Expires: 1998-11-30
Abstract
Abstract A heat storage article adapted for prevention of stratification of incongruently melting heat storage materials, such as eutectic salts, and adapted for use with congruently melting heat storage materials, such as paraffins. The article is comprised of a concrete stone composition, a certain portion of which is comprised of metallic heat transfer materials in order to increase heat transfer through the concrete structure. The concrete structure has an internal cavity which is filled with either the eutectic salt material or the paraffin material.
Inventors
- 👤 James L. Schoenfelder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:19
CPC Classifications
F; F28; F28D; F28D20/00; F28D20/02; Y; Y02; Y02E; Y02E60/00; Y02E60/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
77 words
A heat storage article comprised of a concrete block, the composition of which comprises conventional masonry concrete and from about 5% to about 20% by weight of the fine aggregate portion of said block of a heat transfer augmenting material mixed with said concrete, said block having an internal cavity which is substantially completely filled with a eutectic salt heat storage material, mixed with a non-biodegradable bulky material and the mixture being surrounded by a liner material.
Claim 2
Dependent Claim
77 words
A heat storage article comprised of a concrete block, the composition of which comprises conventional masonry concrete and from about 5% to about 20% by weight of the fine aggregate portion of said block of a heat transfer augmenting material mixed with said concrete, said block having an internal cavity which is substantially completely filled with a eutectic salt heat storage material, mixed with a non-biodegradable bulky material and the mixture being surrounded by a liner material.
Claim 3
Dependent Claim
22 words
The heat storage block of claim 1 wherein said block has a plurality of longitudinally extending grooves on its exteriorally exposed surfaces.
Claim 4
Dependent Claim
31 words
The heat storage blocks of claim 2 wherein said metallic heat transfer material comprises from about 8% to about 15% by weight of the fine aggregate portion of the block composition.
Claim 5
Dependent Claim
27 words
The heat storage blocks of claim 3 wherein said metallic heat transfer material comprises about 10% by weight of the fine aggregate portion of said block composition.
Claim 6
Dependent Claim
22 words
The heat storage blocks of claim 1 wherein said metallic heat transfer augmenting material is substantially homogeneously mixed throughout said concrete block.
Claim 7
Dependent Claim
13 words
The heat storage blocks of claim 1 wherein said bulky material is fiberglass.
Claim 8
Dependent Claim
17 words
The heat storage blocks of claim 1 wherein said heat storage material is a congruently melting paraffin.
Claim 9
Dependent Claim
18 words
The heat storage blocks of claim 7 wherein said paraffin is admixed with thermally conductive fibrous mesh material.
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) | 1983-12-30 | 1984-06-30 | 1984-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-30 | 1988-06-30 | 1988-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-30 | 1992-06-30 | 1992-12-30 | $7700.00 | Window Closed / Lapsed |