Cathode unit for fluorescent lamps
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
May 11, 2006
app pub date -
Nov 10, 2004
filing date -
Nov 10, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Disclosed are cathode units for use in fluorescent discharge lamps which include a stem element adapted for sealing engagement with an end of an elongated vitreous/glass tube, first and second electrode support wires extending axially through the stem element, and a filament electrode which is oriented substantially axially with respect to the support wires. The support wires each have a inwardly-directed tip portion and the filament electrode is attached thereto. The ends of the filament electrode are attached to the support wires by welding. In alternative embodiments, the disclosed cathode unit can further include an electrode shield assembly.
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