Patent US3001100A successfully refreshed from Google Patents.
US4022947A
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US
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Transparent panel having high reflectivity for solar radiation and a method for preparing same
Assignee: Airco Inc
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Filing: 1975-11-06
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Granted: 1977-05-10
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Expires: 1995-11-06
Abstract
Abstract Disclosed is a transparent panel capable of transmitting a desired proportion of visible radiation while reflecting a large proportion of incident solar radiation, and a method of preparing same, by sputtering an iron, nickel and chromium alloy to obtain a transparent metal film, and reactively sputtering the same or a similar alloy in the presence of oxygen. In one preferred embodiment, the metal film lies between the substrate and the metal oxide film which provides a continuous protective overlayer. In another preferred embodiment, the metal oxide film lies between the substrate and the metal film. The use of such panels can materially reduce the energy required for summer air conditioning when used for glazing in a building, vehicle or other structure.
Inventors
- 👤 Albany D. Grubb
- 👤 Thomas S. Mosakowski
- 👤 Terry A. Trumbly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:39
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/3605; C03C17/3607; C03C17/3649; C03C17/3657; C03C17/366; C03C17/3681; C22C19/00; C22C19/03; C22C19/05; C22C19/058; C23; C23C; C23C14/00; C23C14/06; C23C14/08; C23C14/14; C23C14/18; G; G02; G02B; G02B1/00; G02B1/10; G02B1/12; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/26
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
65 words
A transparent article having a high reflectance for solar radiation, comprising: a transparent substrate; a metal film wherein the metal elements comprise 0.5 to 81 weight percent iron, 3 to 85 percent nickel and 14 to 26 percent chromium; and a metal oxide film wherein the metal radicals comprise 0.5 to 81 percent iron, 3 to 85 percent nickel, and 14 to 26 percent chromium.
Claim 2
Dependent Claim
65 words
A transparent article having a high reflectance for solar radiation, comprising: a transparent substrate; a metal film wherein the metal elements comprise 0.5 to 81 weight percent iron, 3 to 85 percent nickel and 14 to 26 percent chromium; and a metal oxide film wherein the metal radicals comprise 0.5 to 81 percent iron, 3 to 85 percent nickel, and 14 to 26 percent chromium.
Claim 3
Dependent Claim
31 words
The transparent article of claim 1 wherein the metal film has a thickness of 3 to 60 nm and the metal oxide film has a thickness of 10 to 300 nm.
Claim 4
Dependent Claim
24 words
The transparent article of claim 2 wherein the metal film in deposited by sputtering and the metal oxide film is deposited by reactive sputtering.
Claim 5
Dependent Claim
35 words
The transparent article of claim 3 wherein the metal elements and the metal radicals are in the range 45 to 81 weight percent iron, 3 to 22 percent nickel and 16 to 26 percent chromium.
Claim 6
Dependent Claim
35 words
The transparent article of claim 4 wherein the metal elements and the metal radicals are in the range 57 to 72 weight percent iron, 10 to 15 percent nickel and 16 to 21 percent chromium.
Claim 7
Dependent Claim
35 words
The transparent article of claim 3 wherein the metal elements and the metal radicals are in the range 0.5 to 46 weight percent iron, 30 to 85 percent nickel and 14 to 25 percent chromium.
Claim 8
Dependent Claim
34 words
The transparent article of claim 6 wherein the metal elements and metal radicals are in the range 5 to 10 weight percent iron, 70 to 81 percent nickel and 14 to 17 percent chromium.
Claim 9
Dependent Claim
66 words
The transparent article of claim 3 wherein the metal elements of the metal film are in the range 57 to 72 weight percent iron, 10 to 15 weight percent nickel and 16 to 21 percent chromium, and the metal radicals of the metal oxide film are in the range 5 to 10 weight percent iron, 70 to 81 percent nickel and 14 to 17 percent chromium.
Claim 10
Dependent Claim
65 words
The transparent article of claim 3 wherein the metal elements of the metal film are in the range 5 to 10 weight percent iron, 70 to 81 percent nickel, and 14 to 17 percent chromium, and the metal radicals of the metal oxide film are in the range 57 to 72 weight percent iron, 10 to 15 percent nickel, and 16 to 21 percent chromium.
Claim 11
Dependent Claim
19 words
The transparent article of claim 3 wherein the metal film lies between the substrate and the metal oxide film.
Claim 12
Dependent Claim
29 words
The transparent article of claim 3 wherein the metal oxide film lies between the substrate and the metal film and further comprising an overlayer for protecting the metal film.
Claim 13
Dependent Claim
26 words
The transparent article of claim 11 wherein the protective overlayer comprises a layer of metal oxides wherein the metal radicals are predominantly iron, nickel and chromium.
Claim 14
Dependent Claim
11 words
The transparent article of claim 3, wherein the substrate is glass.
Claim 15
Dependent Claim
13 words
The transparent article of claim 3, wherein the substrate is a polymeric material.
Claim 16
Dependent Claim
28 words
A method of rejecting solar energy while admitting visible radiation to a structure having an opening, comprising: covering the opening with a transparent panel according to claim 1.
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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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |