Patent US4177325A successfully refreshed from Google Patents.
US4177325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminium or copper substrate panel for selective absorption of solar energy
Assignee: National Aeronautics and Space Administration
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Filing: 1978-05-30
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Granted: 1979-12-04
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Expires: 1998-05-30
Abstract
Abstract A panel for selectively absorbing solar energy comprising an aluminum substrate, a layer of zinc thereon, a layer of nickel over the zinc layer and an outer layer of solar energy absorbing nickel oxide or a copper substrate with a layer of nickel thereon and a layer of solar energy absorbing nickel oxide distal from the copper substrate. A method for making aforesaid panels is disclosed.
Inventors
- 👤 Marion L. Roberts
- 👤 Max H. Sharpe
- 👤 Albert C. Krupnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:16
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34; C25D5/42; C25D5/44; C25D5/48; C25D5/50; F; F24; F24S; F24S70/00; F24S70/20; F24S70/225; F24S70/25; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y10; Y10S; Y10S126/00; Y10S126/907; Y10S126/908; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12583; Y10T428/1259; Y10T428/12736; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12861; Y10T428/12903; Y10T428/1291; Y10T428/12944
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
68 words
A panel for selectively absorbing solar thermal energy comprising: an aluminum substrate, a layer of zinc carried on the substrate, a layer of nickel on the zinc layer distal from the aluminum substrate, and a deep blue, solar thermal energy absorbing layer of nickel oxide on the layer of nickel distal from the aluminum substrate, said nickel oxide layer having a thickness of about 400 to 1000 angstroms.
Claim 2
Dependent Claim
68 words
A panel for selectively absorbing solar thermal energy comprising: an aluminum substrate, a layer of zinc carried on the substrate, a layer of nickel on the zinc layer distal from the aluminum substrate, and a deep blue, solar thermal energy absorbing layer of nickel oxide on the layer of nickel distal from the aluminum substrate, said nickel oxide layer having a thickness of about 400 to 1000 angstroms.
Claim 3
Dependent Claim
22 words
The panel of claim 1, wherein solar absorptance (α) is at least 0.85 and solar emittance (ε) is less than about 0.08.
Claim 4
Dependent Claim
54 words
A panel for selectively absorbing solar energy comprising: a copper substrate, a layer of nickel on the copper substrate and a deep blue solar thermal energy absorbing layer of nickel oxide on the nickel layer and distal from the copper substrate, said nickel oxide layer having a thickness of about 400 to 1000 angstroms.
Claim 5
Dependent Claim
54 words
A panel for selectively absorbing solar energy comprising: a copper substrate, a layer of nickel on the copper substrate and a deep blue solar thermal energy absorbing layer of nickel oxide on the nickel layer and distal from the copper substrate, said nickel oxide layer having a thickness of about 400 to 1000 angstroms.
Claim 6
Dependent Claim
22 words
The panel of claim 3, wherein solar absorptance (α) is at least 0.85 and solar emittance (ε) is less than about 0.08.
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) | 1982-12-03 | 1983-06-04 | 1983-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-03 | 1987-06-04 | 1987-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-03 | 1991-06-04 | 1991-12-04 | $7700.00 | Window Closed / Lapsed |