US4024726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar heat trap for building windows
Assignee: ENERCON WEST
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Filing: 1975-04-11
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Granted: 1977-05-24
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Expires: 1995-04-11
Abstract
Abstract A window construction to reduce temperature rises in building interiors caused by direct sunlight entering through the windows. The window comprises two parallel, spaced apart window panes with a space between them filled with a suitable heat exchange fluid such as water. A heat exchanger coupled to a refrigeration system cools the water while the water withdraws heat energy, i.e. infrared radiation from the sunlight. The refrigeration system is activated in response to direct sunlight entering through the window by either employing suitable light/heat sensors or by installing on the exterior building wall adjacent the window a heat absorbing plate which is exposed to the sunlight and which supplies the energy to drive an absorption refrigeration system coupled to the heat exchanger.
Inventors
- 👤 Ronald T. Furner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:25
CPC Classifications
F; F25; F25B; F25B27/00; F25B27/002; F25B27/007; F24; F24S; F24S20/00; F24S20/60; F24S20/63; E; E06; E06B; E06B9/00; E06B9/24; E06B2009/2411; Y; Y02; Y02B; Y02B10/00; Y02B10/20; Y02E; Y02E10/00; Y02E10/40; Y02E10/44
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
180 words
An air conditioned building comprising: an exterior wall; at least one floor and at least one ceiling vertically spaced from the floor to define a building interior; the wall including at least one opening defining a window positioned to permit sunlight to enter the building interior; first and second, horizontally spaced, sunlight transmission window panes in the wall opening and defining an upright window space between each other; means sealing the window space from the building exterior and the building interior; a heat absorbing liquid filling the window space, whereby sunlight passing through the building window is cooled before it enters the building interior and correspondingly heats the liquid; a heat exchanger in the space in contact with the liquid; an actuatable absorption refrigeration system operatively coupled to the heat exchanger for directing a coolant therethrough and for thereby directing the coolant in heat exchange relationship to the liquid; and means responsive to the presence or absence of sunlight and positioned to absorb heat energy from the sunlight entering the window for actuating or deactuating, respectively, the absorption refrigeration system.
Claim 2
Dependent Claim
180 words
An air conditioned building comprising: an exterior wall; at least one floor and at least one ceiling vertically spaced from the floor to define a building interior; the wall including at least one opening defining a window positioned to permit sunlight to enter the building interior; first and second, horizontally spaced, sunlight transmission window panes in the wall opening and defining an upright window space between each other; means sealing the window space from the building exterior and the building interior; a heat absorbing liquid filling the window space, whereby sunlight passing through the building window is cooled before it enters the building interior and correspondingly heats the liquid; a heat exchanger in the space in contact with the liquid; an actuatable absorption refrigeration system operatively coupled to the heat exchanger for directing a coolant therethrough and for thereby directing the coolant in heat exchange relationship to the liquid; and means responsive to the presence or absence of sunlight and positioned to absorb heat energy from the sunlight entering the window for actuating or deactuating, respectively, the absorption refrigeration system.
Claim 3
Dependent Claim
32 words
A building according to claim 1 wherein the refrigeration system comprises an absorption refrigeration system, and including means positioned to absorb heat energy from the sunlight for activating the absorption refrigeration system.
Claim 4
Dependent Claim
20 words
A building according to claim 1 wherein the sunlight heat absorbing means comprises a section of the exterior building wall.
Claim 5
Dependent Claim
44 words
A building according to claim 3 wherein the opening spans a portion of the vertical spacing between the building floor and the building ceiling, and wherein the absorption plate comprises a section of the exterior building wall which is vertically spaced from the opening.
Claim 6
Dependent Claim
37 words
A building according to claim 4 wherein the refrigeration system is mounted in substantial alignment with the absorption plate and vertically spaced from the window opening so as to not obstruct the clear view through the opening.
Claim 7
Dependent Claim
16 words
A building according to claim 1 wherein the heat exchanger is disposed in the window space.
Claim 8
Dependent Claim
12 words
A building according to claim 1 wherein the liquid comprises of water.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-23 | 1980-11-22 | 1981-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-23 | 1984-11-22 | 1985-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-23 | 1988-11-22 | 1989-05-24 | $7700.00 | Window Closed / Lapsed |