Patent US4058109A successfully refreshed from Google Patents.
US4058109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar heating and insulating apparatus
Assignee: SUNWALL Inc
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Filing: 1976-05-07
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Granted: 1977-11-15
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Expires: 1996-05-07
Abstract
Abstract A combined solar heating and insulating apparatus for use on existing buildings or in new construction. The apparatus is inexpensive to manufacture and provides for auxiliary solar heating during the day and insulation during the night, both of which result in a savings in fuel and increased efficiency of the standard heating system of the building. The apparatus takes the form of panels which can be affixed to existing vertical southern walls with little or no modification, thus allowing for the use of solar energy without expensive physical modifications to the building.
Inventors
- 👤 Ronald J. Gramm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:22
CPC Classifications
F; F24; F24S; F24S20/00; F24S20/60; F24S20/66; F24S10/00; F24S10/50; F24S50/00; F24S50/80; F24S80/00; F24S2080/01; F24S2080/011; Y; Y02; Y02B; Y02B10/00; Y02B10/20; Y02E; Y02E10/00; Y02E10/40; Y02E10/44
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
124 words
A solar heating apparatus for attachment to a wall of a building, comprising: a transparent panel spaced from the wall; an enclosure attached to the transparent panel, sealing the space between the panel and the wall; a heat absorber of closed-cell insulating material spaced between the transparent panel and the wall, such that a first air space is formed between the transparent panel and the heat absorber, and a second air space is formed between the heat absorber and the wall, said first and second air spaces being in communication through openings above and below the heat absorber; and heat sensing damper means for closing at least one of the openings between the first and second air spaces in response to changes in temperature.
Claim 2
Dependent Claim
124 words
A solar heating apparatus for attachment to a wall of a building, comprising: a transparent panel spaced from the wall; an enclosure attached to the transparent panel, sealing the space between the panel and the wall; a heat absorber of closed-cell insulating material spaced between the transparent panel and the wall, such that a first air space is formed between the transparent panel and the heat absorber, and a second air space is formed between the heat absorber and the wall, said first and second air spaces being in communication through openings above and below the heat absorber; and heat sensing damper means for closing at least one of the openings between the first and second air spaces in response to changes in temperature.
Claim 3
Dependent Claim
17 words
A solar heating apparatus as described in claim 1, wherein the insulating material is a foamed plastic.
Claim 4
Dependent Claim
15 words
A solar heating apparatus as described in claim 2, wherein the foamed plastic is polyurethane.
Claim 5
Dependent Claim
15 words
A solar heating apparatus as described in claim 1, wherein the insulating material is glass.
Claim 6
Dependent Claim
15 words
A solar heating apparatus as described in claim 1, wherein the insulating material is ceramic.
Claim 7
Dependent Claim
21 words
A solar heating apparatus as described in claim 1, wherein the transparent panel comprises two parallel, spaced sheets of transparent material.
Claim 8
Dependent Claim
19 words
A solar heating apparatus as described in claim 1, wherein the transparent panel and the enclosure are integrally formed.
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) | 1980-11-14 | 1981-05-16 | 1981-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-14 | 1985-05-16 | 1985-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-14 | 1989-05-16 | 1989-11-15 | $7700.00 | Window Closed / Lapsed |