Electric lamp and discharge devices – With temperature modifier – Double wall – jacket or casing for envelope
Patent
1993-02-08
1994-08-02
Yusko, Donald J.
Electric lamp and discharge devices
With temperature modifier
Double wall, jacket or casing for envelope
313 25, 313 24, 313 27, 313 30, 313 35, 362224, 362225, 422 24, 250436, H01J 724, H01J 6152, H01J 726, H01K 158
Patent
active
053349059
ABSTRACT:
An immersible lamp for use in a photochemical reactor has an outer bulb (10) surrounding an inner discharge tube (1) which can be cooled by a flow of inert gas such as nitrogen from a supply chamber (23) though hollow guide rods (6, 7) into a remote end (27) of the outer bulb, and back out through an outlet hole (18) and an exhaust chamber (24). In order to facilitate swapping out of the discharge tube (1) in the event of burnout or changes in output power or output spectrum requirements, without the need for welding or glassblowing expertise, the discharge tube (1) is mounted in a pair of sockets (4,5), one of which (4) is axially slidable. The socket is spring-loaded (8), and thus readily adapts to discharge tubes of differing lengths. The socket slides along guide rods (6, 7, 16) which also serve as electrical supply conductors to the sockets (4, 5). Spacer elements (11) help maintain alignment of the guide rods, sockets, and discharge tube with respect to the axis (12) of the outer bulb (10).
REFERENCES:
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patent: 3665235 (1972-05-01), Hugot
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patent: 5147130 (1992-09-01), Watanuki
Brochure Heraeus Original Hanau D 310625/2C Sep. 1989/VN PK, entitled "Tauchlampen fur die Photochemie," published in 1989 by W. C. Heraeus GmbH, Hanau, Germany, p. 13.
Esserman Matthew J.
Heraeus Instruments GmbH
Yusko Donald J.
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