Coating apparatus – Gas or vapor deposition – Running length work
Patent
1979-12-14
1981-10-13
Smith, John D.
Coating apparatus
Gas or vapor deposition
Running length work
118715, 427166, 4272555, B05C 502
Patent
active
042941938
ABSTRACT:
This disclosure describes a vapor coating apparatus for the fabrication of transparent glass window structures of the type bearing a first coating of infra-red reflective material which is advantageously less than about 0.85 microns in thickness and wherein the observance of iridescence resulting from such a first coating is markedly reduced by provision of a layer of continuously varying refractive index between the glass and the coating, such that the refractive index increases continuously from the glass to the first coating, thereby preventing the observation of iridescence. A particular advantage of the invention is its efficacy with clear and lightly tinted glasses wherein the problem of iridescent color has had its greatest commercial impact. A heat exchanging wall is positioned in the gas duct assembly to control the temperature of the reaction gases and non-glass surfaces of the reaction zone.
REFERENCES:
patent: 2332309 (1943-10-01), Drummond
patent: 3206325 (1965-09-01), Averbach
patent: 3400016 (1968-09-01), Enstrom et al.
patent: 3962488 (1976-06-01), Gillery
patent: 4123244 (1978-10-01), Leclercq et al.
Cesari Robert A.
Kehoe Andrew F.
McKenna John F.
Plantz Bernard F.
Smith John D.
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