Lamp with protective coating and method of applying same

Details Lamp with protective coating and method of applying same Lamp with protective coating and method of applying same

1976-12-22

1980-04-15

Dority, Jr., Carroll B.

Combustion

Illuminating flash device, e.g., photographic bulb, etc.

Fuel charge within sealed transparent casing, e.g., bulb

313312, 427 55, F21K 502

Patent

active

041981995

ABSTRACT:
A photoflash lamp having a glass envelope with a clear protective exterior coating comprising a photopolymer. In applying the coating, the lamp is dipped in a liquid photopolymer and then cure-hardened by a short period of irradiation with a source of ultraviolet light.

REFERENCES:
patent: 2438993 (1948-04-01), DeBoer
patent: 3554887 (1971-01-01), Feehs
patent: 3832125 (1974-08-01), McDonough et al.
patent: 3893797 (1975-07-01), Hough et al.
patent: 3947224 (1976-03-01), Shaffer
patent: 3959525 (1976-05-01), Sentementes et al.
patent: 3961099 (1976-06-01), Gipstein et al.
patent: 3992276 (1976-11-01), Powanda et al.
patent: 4008341 (1977-02-01), Kehr
patent: 4017652 (1977-04-01), Gruber
patent: 4076489 (1978-02-01), Schroeter et al.

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