Electric lamp and discharge devices – With getter – Mounted on electrode support
Patent
1997-10-14
1999-07-13
Patel, Nimeshkumar D.
Electric lamp and discharge devices
With getter
Mounted on electrode support
31331802, 313558, 313574, H01J 1734, H01J 1724
Patent
active
059231211
ABSTRACT:
A fluorescent lamp having an attachment mounted therein for reduction of soluble mercury contained in the lamp, and to act as a fail-safe at the end of lamp life, comprises a collar of iron mesh providing an iron surface area sufficiently large to reduce a portion of the soluble mercury to elemental mercury when the lamp is pulverized to granules and subjected to a suitable aqueous acid solution, such that a remaining portion of soluble mercury leachable is less than 0.2 milligram per liter of the aqueous acid solution, whereby to provide a substantially non-soluble mercury leachable lamp. The attachment is adapted for disposition around an electrode mount in the lamp and is electrically isolated from lead-in contacts in the mount, such that upon exhaustion of a cathode coating in the lamp, an electrical arc stream impinges on the attachment, causing the mount within the attachment to crack, whereby to provide for safe termination of operation of the lamp.
REFERENCES:
patent: 3265917 (1966-08-01), Ray
patent: 3534212 (1970-10-01), Evans
patent: 3562571 (1971-02-01), Evans
patent: 4105910 (1978-08-01), Evans
patent: 4268306 (1981-05-01), Bjorkman
patent: 4435284 (1984-03-01), Heytmeijer
patent: 4715838 (1987-12-01), Kulander
patent: 5229686 (1993-07-01), Fowler et al.
patent: 5229687 (1993-07-01), Fowler et al.
patent: 5374871 (1994-12-01), Johnson
patent: 5736813 (1998-04-01), Foust et al.
patent: 5777434 (1998-07-01), Dietrich et al.
Federal Register, pp. 26987-26998, vol. 55, No. 126, Jun. 29, 1990.
Boyce Craig S.
Evans Tyra N.
Shinn Dennis B.
Sweetland Michael D.
Tuttle Billy W.
Bessone Carlo S.
Osram Sylvania Inc.
Patel Nimeshkumar D.
LandOfFree
Fluorescent lamp having an attachment therein for reduction of s does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluorescent lamp having an attachment therein for reduction of s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluorescent lamp having an attachment therein for reduction of s will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2278425