Patent US3869198A successfully refreshed from Google Patents.
US3869198A
Expired / Lapsed
US
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Heat and light reflecting spandrel
Assignee: PPG Industries Inc
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Filing: 1972-09-22
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Granted: 1975-03-04
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Expires: 1992-09-22
Abstract
Abstract Durable glass spandrels are provided with transparent light and heat reflective coatings on the outwardly glazed glass surface and with substantially opaque ceramic enamel coatings adhered to the inwardly glazed glass surface. The spandrels are light and heat reflecting and provide for aesthetically matched vision and spandrel areas in curtainwall construction by utilizing a ceramic enamel coating which reflects light in the same spectral region of light transmitted by the transparent coating and glass combination.
Inventors
- 👤 John D Ballentine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:52
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/3605; C03C17/02; C03C17/3411; C03C17/3642; C03C17/3657; C03C17/366; C03C17/3681; C03C3/00; C03C3/04; C03C3/062; C03C3/07; C03C3/072; C03C3/074; C03C3/0745; C03C3/076; C03C3/083; C03C3/085; C03C3/087; C03C8/00; C03C8/02; C03C8/10; E; E06; E06B; E06B7/00; E06B7/28; Y; Y10; Y10S; Y10S428/00; Y10S428/913
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
165 words
An article for reflecting visible light comprising: a transparent substrate having a first major surface and a second major surface opposite to the first major surface; a transparent, reflective coating disposed over substantially all of the first major surface of said substrate to provide said substrate with (1) a transmitted dominant wavelength for visible light, which transmitted dominant wavelength is determined by transmittance to visible light of said substrate and said transparent, reflective coating, and (2) a reflectance to visible light which is determined by said transparent, reflective coating; and an opaque, reflective coating disposed over substantially all of the second major surface of said substrate, said opaque, reflective coating having a reflective dominant wavelength for visible light substantially equivalent to the transmitted dominant wavelength to provide the article with a total reflectance to visible light that exceEds the visible light reflected from said transparent, reflective coating and a dominant wavelength substantially equivalent to the dominant wavelength of light transmitted through said transparent reflective coating.
Claim 2
Dependent Claim
165 words
An article for reflecting visible light comprising: a transparent substrate having a first major surface and a second major surface opposite to the first major surface; a transparent, reflective coating disposed over substantially all of the first major surface of said substrate to provide said substrate with (1) a transmitted dominant wavelength for visible light, which transmitted dominant wavelength is determined by transmittance to visible light of said substrate and said transparent, reflective coating, and (2) a reflectance to visible light which is determined by said transparent, reflective coating; and an opaque, reflective coating disposed over substantially all of the second major surface of said substrate, said opaque, reflective coating having a reflective dominant wavelength for visible light substantially equivalent to the transmitted dominant wavelength to provide the article with a total reflectance to visible light that exceEds the visible light reflected from said transparent, reflective coating and a dominant wavelength substantially equivalent to the dominant wavelength of light transmitted through said transparent reflective coating.
Claim 3
Dependent Claim
45 words
The article according to claim 1 wherein said opaque, reflective coating has a reflective dominant wavelength which is from about 5 nanometers less than to about 5 nanometers greater than the transmitted dominant wavelength of said transparent substrate in combination with said transparent, reflective coating.
Claim 4
Dependent Claim
14 words
has a visible light reflectivity of from about 30 percent to about 40 percent;
Claim 5
Dependent Claim
14 words
has a visible light reflectivity of from about 30 percent to about 40 percent;
Claim 6
Dependent Claim
17 words
an opaque, reflective coating disposed over substantially all of the outwardly facing surface of said substrate; and
Claim 7
Dependent Claim
17 words
an opaque, reflective coating disposed over substantially all of the outwardly facing surface of said substrate; and
Claim 8
Dependent Claim
51 words
a transparent, reflective coating of substantially uniforM transparency throughout disposed over substantially all of the outwardly facing surface of said transparent substrate, said transparent reflective coating in combination with said transparent substrate providing each of said vision panels with a transmitted dominant wavelength; and b. each of said spandrel panels comprising:
Claim 9
Dependent Claim
51 words
a transparent, reflective coating of substantially uniforM transparency throughout disposed over substantially all of the outwardly facing surface of said transparent substrate, said transparent reflective coating in combination with said transparent substrate providing each of said vision panels with a transmitted dominant wavelength; and b. each of said spandrel panels comprising:
Claim 10
Dependent Claim
26 words
a transparent, reflective coating substantially identical to that of said vision panel on the outwardly facing surface of said transparent substrate of said spandrel panel; and
Claim 11
Dependent Claim
26 words
a transparent, reflective coating substantially identical to that of said vision panel on the outwardly facing surface of said transparent substrate of said spandrel panel; and
Claim 12
Dependent Claim
40 words
a transparent, reflective coating of substantially uniform transparency throughout disposed over substantially all of the outwardly facing surface of said transparent substrate; each of said vision panels having a transmitted dominant wavelength and b. each of said spandrel panels comprising:
Claim 13
Dependent Claim
40 words
a transparent, reflective coating of substantially uniform transparency throughout disposed over substantially all of the outwardly facing surface of said transparent substrate; each of said vision panels having a transmitted dominant wavelength and b. each of said spandrel panels comprising:
Claim 14
Dependent Claim
12 words
an infrared reflectivity of from about 25 percent to about 45 percent;
Claim 15
Dependent Claim
12 words
an infrared reflectivity of from about 25 percent to about 45 percent;
Claim 16
Dependent Claim
40 words
an opaque, reflective coating disposed over substantially all of the inwardly facing surface of said transparent substrate of said spandrel panel, said opaque coating having a reflective, dominant wavelength substantially equivalent to the transmitted dominant wavelength of said vision panel.
Claim 17
Dependent Claim
40 words
an opaque, reflective coating disposed over substantially all of the inwardly facing surface of said transparent substrate of said spandrel panel, said opaque coating having a reflective, dominant wavelength substantially equivalent to the transmitted dominant wavelength of said vision panel.
Claim 18
Dependent Claim
99 words
a reflective dominant wavelength a. which is from 5 nanometers less than to about 5 nanometers greater than the transmitted dominant wavelength of said transparent, reflective coating in combination with said piece of glass, and b. having an excitation purity exceeding the excitation purity of saId transmitted dominant wavelength; and wherein said coatings are being disposed relative to one another such that reflected light from one is combined with reflected light from the other and said ceramic enamel coating having sufficient visible light reflectivity to provide a total reflectance from said article exceeding that of said transparent, reflective coating.
Claim 19
Dependent Claim
99 words
a reflective dominant wavelength a. which is from 5 nanometers less than to about 5 nanometers greater than the transmitted dominant wavelength of said transparent, reflective coating in combination with said piece of glass, and b. having an excitation purity exceeding the excitation purity of saId transmitted dominant wavelength; and wherein said coatings are being disposed relative to one another such that reflected light from one is combined with reflected light from the other and said ceramic enamel coating having sufficient visible light reflectivity to provide a total reflectance from said article exceeding that of said transparent, reflective coating.
Claim 20
Dependent Claim
53 words
a transparent, reflective coating substantially identical to that of said vision panel disposed over substantially all of said opaque, reflective coating wherein said opaque, reflective coating has a reflective dominant wavelength substantially equivalent to the transmitted dominant wavelength of said transparent, reflective coating in combination with said transparent substrate of said vision panel.
Claim 21
Dependent Claim
53 words
a transparent, reflective coating substantially identical to that of said vision panel disposed over substantially all of said opaque, reflective coating wherein said opaque, reflective coating has a reflective dominant wavelength substantially equivalent to the transmitted dominant wavelength of said transparent, reflective coating in combination with said transparent substrate of said vision panel.
Claim 22
Dependent Claim
13 words
an infrared reflectivity of from about 25 percent to about 35 percent; and
Claim 23
Dependent Claim
13 words
an infrared reflectivity of from about 25 percent to about 35 percent; and
Claim 24
Dependent Claim
43 words
The article according to claim 1 wherein said opaque, reflective coating has an excitation purity for its reflective dominant wavelength which is greater than the excitation purity for the transmitted dominant wavelength of said transparent substrate in combination with said transparent, reflective coating.
Claim 25
Dependent Claim
21 words
The article according to claim 1 wherein said transparent substrate is glass and said opaque, reflective coating comprises a ceramic enamel.
Claim 26
Dependent Claim
92 words
has a reflective dominant wavelength of from about 490 nanometers to about 575 nanometers with an excitation purity of from about 1 percent to about 12 percent; and wherein said transparent, reflective coating in combination with said piece of glass has a transmitted dominant wavelength of from about 575 nanometers to 585 nanometers with an exciation purity of from about 8 percent to about 15 percent; and a coating of a ceramic enamel disposed over substantially all of the other major surface of said piece of glass, said ceramic enamel coating having
Claim 27
Dependent Claim
92 words
has a reflective dominant wavelength of from about 490 nanometers to about 575 nanometers with an excitation purity of from about 1 percent to about 12 percent; and wherein said transparent, reflective coating in combination with said piece of glass has a transmitted dominant wavelength of from about 575 nanometers to 585 nanometers with an exciation purity of from about 8 percent to about 15 percent; and a coating of a ceramic enamel disposed over substantially all of the other major surface of said piece of glass, said ceramic enamel coating having
Claim 28
Dependent Claim
15 words
The article according to claim 1 wherein said transparent reflective coating comprises a metal oxide.
Claim 29
Dependent Claim
41 words
The article according to claim 5 wherein said transparent substrate is glass, said opaque, reflective coating is a ceramic enamel and said transparent, reflective coating comprises a metal oxide selected from the oxides of cobalt, iron, chromium, copper, manganese, and nickel.
Claim 30
Dependent Claim
70 words
The article according to claim 6 wherein said transparent, reflective coating has a visible light reflectivity of from about 30 percent to about 40 percent and an infrared reflectivity of from about 25 percent to about 35 percent and said opaque, reflective coating has a visible light reflectivity of from about 20 percent to about 40 percent and an infrared reflectivity of from about 25 percent to about 45 percent.
Claim 31
Dependent Claim
63 words
The article according to claim 7 wherein said opaque, reflective coating has a reflective dominant wavelength which is from about 5 nanometers less than to about 5 nanometers greater than the transmitted dominant wavelength of said transparent substrate in combination with said transparent, reflective coating and said reflective dominant wavelength has an excitation purity exceeding the excitation purity of said transmitted dominant wavelength.
Claim 32
Dependent Claim
34 words
An article comprising: a piece of glass a transparent, reflective coating of substantially uniform transparency throughout, disposed over substantially all of one major surface of said piece of glass wherein said transparent, reflective coating
Claim 33
Dependent Claim
34 words
An article comprising: a piece of glass a transparent, reflective coating of substantially uniform transparency throughout, disposed over substantially all of one major surface of said piece of glass wherein said transparent, reflective coating
Claim 34
Dependent Claim
38 words
The article according to claim 9 wherein said ceramic, enamel coating has a reflective dominant wavelength of from about 575 nanometers to about 585 nanometers with an excitation purity of from about 20 percent to about 40 percent.
Claim 35
Dependent Claim
38 words
A curtainwall for a structure, the curtainwall comprising, in closely spaced relation, vision panels and spandrel panels, the combination having a color harmonizing appearance to the eye under external daylight conditions, a. each of said vision panels comprising:
Claim 36
Dependent Claim
38 words
A curtainwall for a structure, the curtainwall comprising, in closely spaced relation, vision panels and spandrel panels, the combination having a color harmonizing appearance to the eye under external daylight conditions, a. each of said vision panels comprising:
Claim 37
Dependent Claim
32 words
The curtainwall of claim 11 wherein the substantial equivalence of said opaque coating reflective dominant wavelength to said transparent, reflective coating and said transparent substrate transmitted dominant wavelength is within 5 nanometers.
Claim 38
Dependent Claim
155 words
An article for reflecting visible light, comprising: a substrate having at least one major surface; an opaque, reflective coating disposed over substantially all of the at least one major surface of said substrate; a transparent, reflective coating disposed over substantially all of said opaque, reflective coating; said transparent, reflective coating providing said substrate with (1) a transmited dominant wavelength for visible light which is determined by transmittance to visible light of said transparent reflective coating and (2) a reflectance to visible light which is determined by said transparent, reflective coating; and said opaque, reflective coating has a reflective dominant wavelength for visible light substantially equivalent to the transmitted dominant wavelength of said transparent, reflective coating to provide the article with a total reflectance to visible light that exceeds the visible light reflected from said transparent, reflective coating and a dominant wavelength substantially equivalent to the dominant wavelength of light transmitted through said transparent reflective coating.
Claim 39
Dependent Claim
155 words
An article for reflecting visible light, comprising: a substrate having at least one major surface; an opaque, reflective coating disposed over substantially all of the at least one major surface of said substrate; a transparent, reflective coating disposed over substantially all of said opaque, reflective coating; said transparent, reflective coating providing said substrate with (1) a transmited dominant wavelength for visible light which is determined by transmittance to visible light of said transparent reflective coating and (2) a reflectance to visible light which is determined by said transparent, reflective coating; and said opaque, reflective coating has a reflective dominant wavelength for visible light substantially equivalent to the transmitted dominant wavelength of said transparent, reflective coating to provide the article with a total reflectance to visible light that exceeds the visible light reflected from said transparent, reflective coating and a dominant wavelength substantially equivalent to the dominant wavelength of light transmitted through said transparent reflective coating.
Claim 40
Dependent Claim
38 words
A curtainwall for a structure, the curtainwall comprising in closely spaced relation, vision panels and spandrel panels, the combination having a color harmonizing appearance to the eye under external lighted conditions, a. each of said vision panels comprising:
Claim 41
Dependent Claim
38 words
A curtainwall for a structure, the curtainwall comprising in closely spaced relation, vision panels and spandrel panels, the combination having a color harmonizing appearance to the eye under external lighted conditions, a. each of said vision panels comprising:
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) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |