Title: Electrode protecting means for electric discharge lamps

Abstract: A fluorescent lamp having two opposite electrodes, wire probes located near the electrodes for collecting electrons during the positive half-cycle on an electrode, and a coating of a dielectric material, such as boron nitride, on each probe for storing some collected electrons and attracting a part of positive ions during the negative half-cycle.

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Inventors: Clune, James P. (Middleton, MA, US)
Aptt, Harry W. (Gloucester, MA, US)
Marci, Sebastian J. (Middleton, MA, US)

Application Number: 635418
Filing Date: 1975-11-26
Publication_date: 1977-03-22
Assignee: North American Philips Corporation (New York, NY)
Primary Class(es): 313/313 313/107, 313/492, 313/616
Other Classes:
US Patent Ref:

2300997	Nov, 1942	Van Horn	313/348.
2824255	Feb, 1958	Mistler	313/217.
2946909	Jul, 1960	Morehead	313/207.
3005930	Oct, 1961	Mason	313/207.
3215882	Nov, 1965	Toomey	313/207.
3898503	Aug, 1975	Shurgan	313/207.
3914637	Oct, 1975	Bennett	313/313.

Other Refs:
Primary Examiner: Chatmon, Jr., Saxfield
Assistant Examiner:
Attorney: Trifari; Frank R., Berka; George B.