Patent US4393918A successfully refreshed from Google Patents.
US4393918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melting latent-heat heat or cold exchanger-storage device
Assignee: Individual
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Filing: 1981-10-19
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Granted: 1983-07-19
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Expires: 2001-10-19
Abstract
Abstract A heat or cold exchanger and storage device comprises a main container of elongated configuration, divided into two chambers by a longitudinal partition and provided at either end with a perforated plate. The two chambers communicate with each other at an end opposite an inlet and outlet end, so that an cold or heat carrier medium circulates in countercurrent relationship in the two chambers. A relatively great number of elementary containers are stacked in the two chambers. These elementary containers are so shaped as to provide a free gap therebetween, when stacked, to permit the circulation of the carrier medium, and each elementary container has an air pocket therein to permit the expansion of the complete assembly. Preferably each elementary container consists of a pair of substantially semi-spherical halves providing, in their assembled condition, a gap between the self-stacking elementary containers enclosed in the main container.
Inventors
- 👤 Jean Patry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:46
CPC Classifications
F; F25; F25D; F25D3/00; F28; F28D; F28D20/00; F28D20/02; F25D2303/00; F25D2303/08; F25D2303/082; F25D2303/0822; F25D2303/08222; Y; Y02; Y02E; Y02E60/00; Y02E60/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
164 words
A heat or cold exchanger and storage device operable according to the melting latent heat effect, said device comprising: an elongated main container divided into two halves by a longitudinal partition to create two chambers connected at one end of said main container; a plurality of elementary containers stacked in said two chambers in a manner such that a heat carrier medium circulated through said chambers will pass around said elementary containers and will meet a homogeneous resistance; each said elementary container comprising a pair of semi-spherical elements so shaped such that when assembled there will be a gap therebetween permitting circulation therethrough of the heat carrier medium; each said element being filled with a heat and/or cold storage medium capable of generating a substantial quantity of heat when melting; each said element being formed of a deformable material capable of absorbing volumetric variations resulting from crystallization; and each said element containing therein an air pocket to produce an expansion inherent to the device.
Claim 2
Dependent Claim
164 words
A heat or cold exchanger and storage device operable according to the melting latent heat effect, said device comprising: an elongated main container divided into two halves by a longitudinal partition to create two chambers connected at one end of said main container; a plurality of elementary containers stacked in said two chambers in a manner such that a heat carrier medium circulated through said chambers will pass around said elementary containers and will meet a homogeneous resistance; each said elementary container comprising a pair of semi-spherical elements so shaped such that when assembled there will be a gap therebetween permitting circulation therethrough of the heat carrier medium; each said element being filled with a heat and/or cold storage medium capable of generating a substantial quantity of heat when melting; each said element being formed of a deformable material capable of absorbing volumetric variations resulting from crystallization; and each said element containing therein an air pocket to produce an expansion inherent to the device.
Claim 3
Dependent Claim
36 words
A device as claimed in claim 1, wherein the ratio of the external surface area to the volume of each said elementary container is approximately one square meter of surface area for ten liters of volume.
Claim 4
Dependent Claim
56 words
A device as claimed in claim 1, further comprising, within said main container and located at each end thereof, a perforated plate having apertures sufficient to convert static pressure of the heat carrier medium into dynamic pressure as it penetrates into said chambers, thus affording a homogeneous distribution of said heat carrier medium throughout the device.
Claim 5
Dependent Claim
13 words
A device as claimed in claim 1, wherein said deformable material comprises polyethylene.
Claim 6
Dependent Claim
13 words
A device as claimed in claim 1, wherein said deformable material comprises polypropylene.
Claim 7
Dependent Claim
14 words
A device as claimed in claim 1, wherein said deformable material comprises a metal.
Claim 8
Dependent Claim
15 words
A device as claimed in claim 1, wherein said main container has a cylindrical configuration.
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) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |