US4779673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible hose heat exchanger construction
Assignee: Watts Radiant Inc
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Filing: 1986-09-16
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Granted: 1988-10-25
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Expires: 2006-09-16
Abstract
Abstract A heat exchanger construction for melting snow, heating buildings or objects and transferring solar heat. The construction embodies a flexible, multilayered, reinforced composite hose embedded in or affixed to a slab or other body. The composite construction combines the advantages of metal, extruded rubber and plastic piping to produce substantial durability, pressure rating, resistance to oxygen permeation, temperature tolerance, and corrosion resistance, while remaining extremely flexible and thus easy to install. Three embodiments are described and illustrated.
Inventors
- 👤 Daniel T. Chiles
- 👤 Richard M. Chiles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:52
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/085; F28; F28F; F28F1/00; F28F1/003; F28F21/00; F28F21/06; F28F21/062; Y; Y10; Y10S; Y10S165/00; Y10S165/905
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
108 words
In a concrete slab, a heat exchanger construction comprising: flexible hosing embedded in the slab below the top surface of the concrete therein, said hosing having an inner layer of high temperature elastomeric polymer material arranged to present a conduit through the hosing for the receipt of heat transfer fluid circulated through the conduit to transfer heat to or from the concrete slab; a fabric braid in said hosing surrounding said inner layer to reinforce the hosing; and an elastomeric polymer cover surrounding said fabric braid in the hosing, said cover being resistant to solvents and chemicals to withstand chemical attack resulting from seepage through the concrete slab.
Claim 2
Dependent Claim
108 words
In a concrete slab, a heat exchanger construction comprising: flexible hosing embedded in the slab below the top surface of the concrete therein, said hosing having an inner layer of high temperature elastomeric polymer material arranged to present a conduit through the hosing for the receipt of heat transfer fluid circulated through the conduit to transfer heat to or from the concrete slab; a fabric braid in said hosing surrounding said inner layer to reinforce the hosing; and an elastomeric polymer cover surrounding said fabric braid in the hosing, said cover being resistant to solvents and chemicals to withstand chemical attack resulting from seepage through the concrete slab.
Claim 3
Dependent Claim
58 words
The invention of claim 1, including a supply manifold for directing the heat transfer fluid to said hosing and a return manifold for directing the heat transfer fluid away from the hosing, said hosing being arranged in a plurality of loops each having one end connected with the supply manifold and another end connected with the return manifold.
Claim 4
Dependent Claim
23 words
The invention of claim 2, wherein said manifolds and the connections between the manifolds and loops are located outside of the concrete slab.
Claim 5
Dependent Claim
17 words
The invention of claim 1, wherein the fabric braid is selected from woven rayon, polyester and nylon.
Claim 6
Dependent Claim
16 words
The invention of claim 1, wherein said inner layer is selected from EPDM, SBR and neoprene.
Claim 7
Dependent Claim
19 words
The invention of claim 1, wherein said cover is selected from a chlorinated polyethylene, nitrile, nitrile-PVC, neoprene and Hypalon.
Claim 8
Dependent Claim
12 words
The invention of claim 1, wherein the inner layer incorporates an algicide.
Claim 9
Dependent Claim
12 words
The invention of claim 1, wherein the inner layer incorporates a fungicide.
Claim 10
Dependent Claim
12 words
The invention of claim 1, wherein the inner layer incorporates a bacteriacide.
Claim 11
Dependent Claim
116 words
A heat exchanger construction comprising: a slab of asphalt laid at an elevated temperature and containing oil and petroleum distillates; flexible hosing embedded in said slab below the top surface of the asphalt therein, said hosing having an inner layer of high temperature elastomeric polymer material defining a conduit through which heat transfer fluid is circulated to transfer heat to or from the slab; a fabric braid in said hosing surrounding said inner layer to reinforce the hosing; and an elastomeric polymer cover surrounding said fabric braid in the hosing, said cover being resistant to the oil and petroleum distillates in the asphalt and being resistent to the elevated temperature at which the slab is laid.
Claim 12
Dependent Claim
116 words
A heat exchanger construction comprising: a slab of asphalt laid at an elevated temperature and containing oil and petroleum distillates; flexible hosing embedded in said slab below the top surface of the asphalt therein, said hosing having an inner layer of high temperature elastomeric polymer material defining a conduit through which heat transfer fluid is circulated to transfer heat to or from the slab; a fabric braid in said hosing surrounding said inner layer to reinforce the hosing; and an elastomeric polymer cover surrounding said fabric braid in the hosing, said cover being resistant to the oil and petroleum distillates in the asphalt and being resistent to the elevated temperature at which the slab is laid.
Claim 13
Dependent Claim
58 words
The invention of claim 10, including a supply manifold for directing the heat transfer fluid to said hosing and a return manifold for directing the heat transfer fluid away from the hosing, said hosing being arranged in a plurality of loops each having one end connected with the supply manifold and another end connected with the return manifold.
Claim 14
Dependent Claim
23 words
The invention of claim 11, wherein said manifolds and the connections between the manifolds and loops are located outside of the asphalt slab.
Claim 15
Dependent Claim
17 words
The invention of claim 10, wherein the fabric braid is selected from woven rayon, polyester and nylon.
Claim 16
Dependent Claim
16 words
The invention of claim 10, wherein said inner layer is selected from EPDM, SBR and neoprene.
Claim 17
Dependent Claim
19 words
The invention of claim 10, wherein said cover is selected from a chlorinated polyethylene, nitrile, nitrile-PVC, neoprene and Hypalon.
Claim 18
Dependent Claim
12 words
The invention of claim 10, wherein the inner layer incorporates an algicide.
Claim 19
Dependent Claim
12 words
The invention of claim 10, wherein the inner layer incorporates a fungicide.
Claim 20
Dependent Claim
12 words
The invention of claim 10, wherein the inner layer incorporates a bacteriacide.
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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) | 1991-10-25 | 1992-04-25 | 1992-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-25 | 1996-04-25 | 1996-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-25 | 2000-04-25 | 2000-10-25 | $7700.00 | Window Closed / Lapsed |