Method of controlling leachable mercury in lamps

Details Method of controlling leachable mercury in lamps Method of controlling leachable mercury in lamps

2007-02-13

2007-02-13

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

Having vapor generating material

Mercury vapor material

C313S571000, C313S318020, C313S638000

Reexamination Certificate

active

10883081

ABSTRACT:
A method for inhibiting mercury from leaching from a land-filled arc discharge lamp containing a quantity of elemental mercury at least partially convertible to soluble mercury, provides for including within the lamp a quantity of a non-metallic copper-containing compound and an ingredient X, said ingredient X including a noble metal or a noble metal compound selected from the group consisting of silver and compounds of silver, gold and platinum, and a lamp containing same. The inhibiting compound is preferably included with the basing cement.

REFERENCES:
patent: 5229686 (1993-07-01), Fowler et al.
patent: 5229687 (1993-07-01), Fowler et al.
patent: 5736813 (1998-04-01), Foust et al.
patent: 5994838 (1999-11-01), Klinedinst et al.
patent: 6515421 (2003-02-01), Dietrich et al.
patent: 2002/0190646 (2002-12-01), Haitko et al.

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