Receptacles – Envelope for electric lamp or similar device – Tv tube
Patent
1978-12-19
1980-03-25
Shoap, Allan N.
Receptacles
Envelope for electric lamp or similar device
Tv tube
65 42, 65 43, 403 30, C03B 2320, C03C 2706, H01J 2987
Patent
active
041946430
ABSTRACT:
A cathode ray tube has an envelope comprised of a first glass and a faceplate comprised of a second glass, both glasses having different thermal coefficients of expansion. The envelope and faceplate are joined by a cylindrical, stress-absorbing glass member flame-sealed at one end to the envelope and frit-sealed at the other end to the faceplate. Importantly, the thermal coefficient of expansion of the stress-absorbing member is less than the coefficients of either the envelope or the faceplate.
REFERENCES:
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patent: 2064369 (1936-12-01), Biggs
patent: 2132783 (1938-10-01), Goldmark
patent: 2167431 (1939-07-01), Bowie
patent: 2699014 (1955-01-01), van Steenis
patent: 2728009 (1955-12-01), Faulkner
patent: 3171771 (1965-03-01), Badger et al.
patent: 3190738 (1965-06-01), Upton
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"Material Information" (Corning code 7052), Aug. 1977, by Corning Glass Ws.
"Material Information" (Corning Code 1720), Sep. 1972, by Corning Glass Works.
Hager Adolph G.
Krzyzkowski Philip F.
Edelberg Nathan
Goldberg Edward
Kanars Sheldon
Shoap Allan N.
The United States of America as represented by the Secretary of
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