Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – A gas is substance acted upon
Reexamination Certificate
2006-05-30
2006-05-30
Kim, John (Department: 1744)
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
A gas is substance acted upon
C422S123000, C422S125000, C445S009000
Reexamination Certificate
active
07052649
ABSTRACT:
A dispenser (10) for a volatilizable material has a first member (14) that is substantially cup-shaped with a given diameter (X) and with a given depth (Z) and having a first peripheral flange (16) having a first diameter (D). A second member (18) has a second peripheral flange (20) with a second diameter (D2) greater than the given diameter (X). The first peripheral flange (16) and the second peripheral flange (20) are in intimate contact thereby defining a volatilizable material chamber (22) between the bottom (24) of the second member (18) and the bottom (26) of the first cup-shaped member (14). A volatilizable material (12) such as liquid mercury is placed in the chamber; and a hermetic seal (28) is formed between the first and second flanges. When installed in a fluorescent lamp the volatilizable material is released by heating the dispenser with RF current. The material is released when the vapor pressure within the dispenser reaches about 20 atmospheres. For mercury, this pressure is achieved when the dispenser reaches about 600° C.
REFERENCES:
patent: 4464133 (1984-08-01), Buhrer
patent: 5458244 (1995-10-01), Emori
patent: 6369503 (2002-04-01), Tuttle et al.
patent: 2003/0060798 (2003-03-01), Fischer et al.
Bellows Alfred H.
George William A.
Grossman Mark W.
Keup Eric
Chin Brad Y.
Kim John
McNeill William H.
Osram Sylvania Inc.
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