Patent US4749447A successfully refreshed from Google Patents.
US4749447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evacuated evaporation-pressurized condensation solar still
Assignee: Individual
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Filing: 1986-05-27
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Granted: 1988-06-07
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Expires: 2006-05-27
Abstract
Abstract This invention discloses a solar still comprising a plurality of twin conduits routed through a plurality of solar collectors wherein the liquid is evaporated in the evaporation conduit constituting the first of the twin conduits and the vapor is condensed in the condensation conduit constituting the second conduit of the twin conduits. The evaporation conduit and the condensation conduit are separated from one another by a heat conducting element. A plurality of vapor conduits branching off from the evaporation conduits are connected to the condensation conduits via at least one pump or blower. The liquid fed to the evaporation conduit evaporates to vapor under an evacuated state provided by the pump or blower after being heated by the solar energy collected and supplied by the solar collector and/or by the latent heat released in and supplied by the condensation conduit wherein the vapor is condensed to liquid under a pressurized state provided by the pump or blower. The latent heat is recycled conductively via the heat conducting element separating the twin conduits from one another as the latent heat released by the condensing vapor under a pressurized state in the condensation conduit at a higher temperature flows from the condensation conduit to the evaporation conduit wherein the liquid evaporates under an evacuated state at a lower temperature.
Inventors
- 👤 Hyok S. Lew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:40
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/14; C02F1/046; F; F24; F24S; F24S23/00; F24S23/30; F24S23/70; F24S23/80; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/208; Y02A20/212; Y02E; Y02E10/00; Y02E10/40; Y10; Y10S; Y10S159/00; Y10S159/902; Y10S159/903; Y10S203/00; Y10S203/01
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
277 words
A distillation apparatus comprising in combination: (a) at least one solar collector including means for collecting solar energy and at least one combination of conduits absorbing the solar energy collected by said means, wherein said means for collecting the solar energy and said combination of conduits absorbing the solar energy are integral elements of said solar collector; (b) at least one evaporator conduit and at least one condenser conduit included in said combination of conduits in a parallel arrangement therebetween, wherein said combination of the evaporator and condenser conduits includes means for providing conductive heat transfer therebetween; (c) at least one vapor header branching off from said evaporator conduit and connected to said condenser conduit tor moving vapor from said evaporator conduit to said condenser conduit; (d) at least one fluid moving means included in said vapor header intermediate said evaporator conduit and said condenser conduit for forcibly moving vapor from said evaporator conduit to said condenser conduit, wherein said fluid moving means creates an evacuated state in said evaporator conduit and a pressurized state in said condenser conduit; (e) means for supplying raw fluid to said evaporator conduit at a controlled rate; and (f) means for recovering condensate from said condenser conduit; whereby, raw fluid supplied to said evaporator conduit and heated by the thermal energy supplied to said evaporator conduit evaporates under an evacuated state and vapor forcibly moved from said evaporator conduit to said condenser conduit by said fluid moving means condenses under a pressurized state wherein latent heat released by the condensing vapor in said condenser conduit is conductively transferred to said evaporator conduit for evaporating more raw fluid in said evaporator conduit.
Claim 2
Dependent Claim
277 words
A distillation apparatus comprising in combination: (a) at least one solar collector including means for collecting solar energy and at least one combination of conduits absorbing the solar energy collected by said means, wherein said means for collecting the solar energy and said combination of conduits absorbing the solar energy are integral elements of said solar collector; (b) at least one evaporator conduit and at least one condenser conduit included in said combination of conduits in a parallel arrangement therebetween, wherein said combination of the evaporator and condenser conduits includes means for providing conductive heat transfer therebetween; (c) at least one vapor header branching off from said evaporator conduit and connected to said condenser conduit tor moving vapor from said evaporator conduit to said condenser conduit; (d) at least one fluid moving means included in said vapor header intermediate said evaporator conduit and said condenser conduit for forcibly moving vapor from said evaporator conduit to said condenser conduit, wherein said fluid moving means creates an evacuated state in said evaporator conduit and a pressurized state in said condenser conduit; (e) means for supplying raw fluid to said evaporator conduit at a controlled rate; and (f) means for recovering condensate from said condenser conduit; whereby, raw fluid supplied to said evaporator conduit and heated by the thermal energy supplied to said evaporator conduit evaporates under an evacuated state and vapor forcibly moved from said evaporator conduit to said condenser conduit by said fluid moving means condenses under a pressurized state wherein latent heat released by the condensing vapor in said condenser conduit is conductively transferred to said evaporator conduit for evaporating more raw fluid in said evaporator conduit.
Claim 3
Dependent Claim
46 words
The combination as set forth in claim 1 wherein said combination includes at least one blast cleaning fitting for connecting a blast cleaning apparatus to said combination of conduits, whereby the blast cleaning apparatus cleans said combination of conduits when the blast cleaning apparatus is activated.
Claim 4
Dependent Claim
37 words
The combination as set forth in claim 1 wherein said combination includes a heat exchanger that transfers thermal energy from the condensate emerging from said condenser conduit to the raw fluid being supplied to said evaporator conduit.
Claim 5
Dependent Claim
28 words
The combination as set forth in claim 1 wherein said evaporator conduit and said condenser conduit are connected to one another by at least one heat conducting fin.
Claim 6
Dependent Claim
21 words
The combination as set forth in claim 4 wherein said condenser conduit is insulated against heat loss to the ambient surrounding.
Claim 7
Dependent Claim
25 words
The combination as set forth in claim 1 wherein said evaporator conduit and said condenser conduit are separated from one another by a common wall.
Claim 8
Dependent Claim
21 words
The combination as set forth in claim 6 wherein said condenser conduit is insulated against heat loss to the ambient surrounding.
Claim 9
Dependent Claim
22 words
The combination as set forth in claim 1 wherein said condenser conduit is enclosed within said evaporator conduit in a conduit-in-conduit construction.
Claim 10
Dependent Claim
25 words
The combination as set forth in claim 1 wherein said combination of the evaporator conduit and the condenser conduit is enclosed within a transparent tubing.
Claim 11
Dependent Claim
17 words
The combination as set forth in claim 9 wherein the interior of said transparent tubing is evacuated.
Claim 12
Dependent Claim
284 words
A distillation apparatus comprising in combination: (a) at least one solar collector including means for collecting solar energy in a concentrating mode and directing the concentrated solar energy to at least one combination of conduits absorbing the concentrated solar energy, wherein said means for collecting the solar energy and said combination of conduits absorbing the solar energy are integral elements of said solar collector; (b) at least one evaporator conduit and at least one condenser conduit included in said combination of conduits in a parallel arrangement therebetween, wherein said combination of the evaporator and condenser conduits includes means for providing condutive heat transfer therebetween, (c) at least one vapor header branching off from said evaporator conduit and connected to said condenser conduit for moving vapor from said evaporator conduit to said condenser conduit; (d) at least one fluid moving means included in said vapor header intermediate said evaporator conduit and said condenser conduit for forcibly moving vapor from said evaporator conduit to said condenser conduit, wherein said fluid moving means creates an evacuated state in said evaporator conduit and a pressurized state in said condenser conduit; (e) means for supplying raw fluid to said evaporator conduit at a controlled rate; and (f) means for recovering condensate from said condenser conduit; whereby, raw fluid supplied to said evaporator conduit and heated by the thermal energy supplied to said evaporator conduit evaporates under an evacuated state and vapor forcibly moved from said evaporator conduit to said condenser conduit by said fluid moving means condenses under a pressurized state wherein latent heat released by the condensing vapor in said condenser conduit is condutively transferred to said evaporator conduit for evaporating more raw fluid in said evaporator conduit.
Claim 13
Dependent Claim
284 words
A distillation apparatus comprising in combination: (a) at least one solar collector including means for collecting solar energy in a concentrating mode and directing the concentrated solar energy to at least one combination of conduits absorbing the concentrated solar energy, wherein said means for collecting the solar energy and said combination of conduits absorbing the solar energy are integral elements of said solar collector; (b) at least one evaporator conduit and at least one condenser conduit included in said combination of conduits in a parallel arrangement therebetween, wherein said combination of the evaporator and condenser conduits includes means for providing condutive heat transfer therebetween, (c) at least one vapor header branching off from said evaporator conduit and connected to said condenser conduit for moving vapor from said evaporator conduit to said condenser conduit; (d) at least one fluid moving means included in said vapor header intermediate said evaporator conduit and said condenser conduit for forcibly moving vapor from said evaporator conduit to said condenser conduit, wherein said fluid moving means creates an evacuated state in said evaporator conduit and a pressurized state in said condenser conduit; (e) means for supplying raw fluid to said evaporator conduit at a controlled rate; and (f) means for recovering condensate from said condenser conduit; whereby, raw fluid supplied to said evaporator conduit and heated by the thermal energy supplied to said evaporator conduit evaporates under an evacuated state and vapor forcibly moved from said evaporator conduit to said condenser conduit by said fluid moving means condenses under a pressurized state wherein latent heat released by the condensing vapor in said condenser conduit is condutively transferred to said evaporator conduit for evaporating more raw fluid in said evaporator conduit.
Claim 14
Dependent Claim
45 words
The combination as set forth in claim 11 wherein said combination includes at least one blast cleaning fitting for connecting a blast-cleaning apparatus to said combination of conduits, whereby the blast cleaning apparatus cleans said combination of conduits when the blast cleaning apparatus is activated.
Claim 15
Dependent Claim
37 words
The combination as set forth in claim 11 wherein said combination includes a heat exchanger that transfers thermal energy from the condensate emerging from said condenser conduit to the raw fluid being supplied to said evaporator conduit.
Claim 16
Dependent Claim
28 words
The combination as set forth in claim 11 wherein said evaporator conduit and said condenser conduit are connected to one another by at least one heat conducting fin.
Claim 17
Dependent Claim
21 words
The combination as set forth in claim 14 wherein said condenser conduit is insulated against heat loss to the ambient surrounding.
Claim 18
Dependent Claim
25 words
The combination as set forth in claim 11 wherein said evaporator conduit and said condenser conduit are separated from one another by a common wall.
Claim 19
Dependent Claim
21 words
The combination as set forth in claim 16 wherein said condenser conduit is insulated against heat loss to the ambient surrounding.
Claim 20
Dependent Claim
22 words
The combination as set forth in claim 11 wherein said condenser conduit is enclosed within said evaporator conduit in a conduit-in-conduit construction.
Claim 21
Dependent Claim
25 words
The combination as set forth in claim 11 wherein said combination of the evaporator conduit and the condenser conduit is enclosed within a transparent tubing.
Claim 22
Dependent Claim
17 words
The combination as set forth in claim 19 wherein the interior of said transparent tubing is evacuated.
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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) | 1991-06-07 | 1991-12-07 | 1992-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-07 | 1995-12-07 | 1996-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-07 | 1999-12-07 | 2000-06-07 | $7700.00 | Window Closed / Lapsed |