US4146013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar-exothermic solution heat pump
Assignee: Individual
•
Filing: 1977-05-04
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Granted: 1979-03-27
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Expires: 1997-05-04
Abstract
Abstract A novel heat pump using solar energy and the heat of dilution of exothermic inorganic salts and organic compounds is disclosed. The heat pump is made up of four parts including a solar energy absorbing surface, a means for diluting the concentrated solution, and heat exchange apparatus to take the heat of dilution and distribute it to the space to be heated.
Inventors
- 👤 Willing B. Foulke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:30
CPC Classifications
F; F25; F25B; F25B27/00; F25B27/002; F25B27/007; F24; F24S; F24S10/00; F24S10/60; F25B30/00; F25B30/04; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62; Y02E; Y02E10/00; Y02E10/40; Y02E10/44
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
153 words
A heating system comprising in combination a space to be heated, an evaporating surface arranged to receive solar energy, a salt solution of an exothermic salt, a solvent source, a mixing means for mixing said salt solutions and said solvent to form a dilute salt solution, a means for causing said dilute salt solution to flow across and in contact with said evaporating surface so that said dilute salt solution is reconcentrated and then flows by duct means to said mixing means wherein solvent is added, diluting said salt with the generation of heat; a means for causing said diluted salt solution to give up its heat to the space to be heated in a heat exchange relation with said space to be heated when said space is below a predetermined temperature, wherein said exothermic salt has a heat of dilution to infinite dilution of at least 300 BTU's per pound mole solute.
Claim 2
Dependent Claim
153 words
A heating system comprising in combination a space to be heated, an evaporating surface arranged to receive solar energy, a salt solution of an exothermic salt, a solvent source, a mixing means for mixing said salt solutions and said solvent to form a dilute salt solution, a means for causing said dilute salt solution to flow across and in contact with said evaporating surface so that said dilute salt solution is reconcentrated and then flows by duct means to said mixing means wherein solvent is added, diluting said salt with the generation of heat; a means for causing said diluted salt solution to give up its heat to the space to be heated in a heat exchange relation with said space to be heated when said space is below a predetermined temperature, wherein said exothermic salt has a heat of dilution to infinite dilution of at least 300 BTU's per pound mole solute.
Claim 3
Dependent Claim
58 words
A heating system in accordance to claim 1 containing a means wherein the heated dilute solution is placed in heat exchange relation with a heating fluid and said heating fluid is then circulated to the space to be heated in a heat exchange relation with said space to be heated when said space is below a predetermined temperature.
Claim 4
Dependent Claim
60 words
A heating system according to claim 1, wherein said exothermic salt or organic compound is selected from the group consisting of Acetic Acid, AlBr 3 , AlCl 3 , SbCl 5 , CaCl 2 , CaBr 2 , CaI 2 , CoCl 2 , CuSO 4 , Allyl Alcohol, Allyl Amine, Amyl Amine, Calcium Benzoate, Diiso Butylamine and Triethyl Amine.
Claim 5
Dependent Claim
22 words
A heating system according to claim 2, wherein said heating fluid is water, Freon®, Dowtherm®, mineral oil, air, or an inert gas.
Claim 6
Dependent Claim
39 words
A heating system in accordance with claim 1, wherein said evaporating surface is covered with a transparent shield to block the evaporating solvent vapor, thus condensing same and the then transmitting the condensed solvent for reuse in the system.
Claim 7
Dependent Claim
40 words
A heating system in accordance with claim 1, wherein said concentrated exothermic salt solution is stored, with sufficient solution for 14 hours of continuous system use and a storage vessel with sufficient volume for 14 hours of dilute solution storage.
Claim 8
Dependent Claim
45 words
A heating system according to claim 1, wherein said exothermic salt is selected from the group consisting of AlBr 3 , AlCl 3 , AlI 3 , SbCl 5 , CaCl 2 , CaBr 2 , CaI 2 , CoCl 2 and CuSO 4 .
Claim 9
Dependent Claim
22 words
A heating system according to claim 4, wherein said heating fluid is water, Freon®, Dowtherm®, mineral oil, air, or an inert gas.
Claim 10
Dependent Claim
63 words
A heating system according to claim 6, wherein said exothermic salt or organic compound is selected from the group consisting of Acetic Acid, AlBr 3 , AlCl 3 , AlI 3 , SbCl 5 , CaCl 2 , CaBr 2 , CaI 2 , CoCl 2 , CuSO 4 , Allyl Alcohol, Allyl Amine, Amyl Amine, Calcium Benzoate, Diiso Butylamine and Triethyl Amine.
Claim 11
Dependent Claim
22 words
A heating system according to claim 6, wherein said heating fluid is water, Freon®, Dowtherm®, mineral oil, air or an inert gas.
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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) | 1982-03-26 | 1982-09-25 | 1983-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-26 | 1986-09-25 | 1987-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-26 | 1990-09-25 | 1991-03-27 | $7700.00 | Window Closed / Lapsed |