US4196772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular heat exchanger
Assignee: Raytheon Co
•
Filing: 1978-10-30
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Granted: 1980-04-08
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Expires: 1998-10-30
Abstract
Abstract A heat exchanger for efficiently transferring heat from a first fluid body to a second fluid body within a selected container, tank or reservoir, comprising an elongated tubular hoselike plastic body of deformable material wrapped around the container and filled with the first heated fluid, the plastic body being deformable under the pressure of the first fluid so as to conform to the exterior surface of the container whereby more efficient transfer of heat between the fluids is achieved.
Inventors
- 👤 Joseph R. Adamski
- 👤 Robert F. Bowen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:09
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/18; F24H1/20; F24H1/208; Y; Y10; Y10S; Y10S165/00; Y10S165/044
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
125 words
A heat exchange system comprising a container containing fluid to be heated and having an irregular surface, a heat exchanger of tubular flexible material disposed in a tight spiral winding around said container with one surface in close juxtaposition with the irregular surface of the container, said surface being conformable to the irregularities in the irregular surface, a first rigid pressure-applying casing overlying the opposed surface of the heat exchanger, a layer of insulation overlying the first rigid casing, a second rigid casing covering and supporting the layer of insulation, and means for circulating fluid through the heat exchanger at a pressure sufficient to cause said conformable surface to conform with said irregularities in said irregular surface of the tank whereby heat in said container.
Claim 2
Dependent Claim
125 words
A heat exchange system comprising a container containing fluid to be heated and having an irregular surface, a heat exchanger of tubular flexible material disposed in a tight spiral winding around said container with one surface in close juxtaposition with the irregular surface of the container, said surface being conformable to the irregularities in the irregular surface, a first rigid pressure-applying casing overlying the opposed surface of the heat exchanger, a layer of insulation overlying the first rigid casing, a second rigid casing covering and supporting the layer of insulation, and means for circulating fluid through the heat exchanger at a pressure sufficient to cause said conformable surface to conform with said irregularities in said irregular surface of the tank whereby heat in said container.
Claim 3
Dependent Claim
19 words
A heat exchange system as set forth in claim 1 wherein said layer of insulation is soft nonself-supporting material.
Claim 4
Dependent Claim
43 words
A heat exchange system as set forth in claim 1 wherein an electric heating element is mounted in the upper portion of the container, and the heat exchanger covers the area of the container which is below the level of the heating element.
References Cited (Backward Citations)
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Cited
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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) | 1983-04-08 | 1983-10-08 | 1984-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-08 | 1987-10-08 | 1988-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-08 | 1991-10-08 | 1992-04-08 | $7700.00 | Window Closed / Lapsed |