Electric lamp and discharge devices: systems – Plural load device systems – Plural discharge device loads
Patent
1990-07-09
1992-02-18
Laroche, Eugene R.
Electric lamp and discharge devices: systems
Plural load device systems
Plural discharge device loads
315119, 315121, 315225, 315DIG5, H05B 4114
Patent
active
050897535
ABSTRACT:
An electronic ballast which will repeatedly try to ignite gas discharge lamps should they fail to ignite under conditions in which they should have ignited together with means rendering said electronic ballast incapable of trying to ignite said lamps after a predetermined period and said electronic ballast being rendered capable of again trying to ignite said lamps under prescribed conditions.
REFERENCES:
patent: 4207500 (1980-06-01), Duve et al.
patent: 4276496 (1981-06-01), Arena-Ochoa
patent: 4318031 (1982-03-01), Lonseth et al.
patent: 4667131 (1987-05-01), Nilssen
patent: 4810936 (1989-03-01), Nuckolls et al.
patent: 4949018 (1990-08-01), Siglock
patent: 4952849 (1990-08-01), Fellows et al.
Dinh Son
LaRoche Eugene R.
Mayer Robert T.
North American Philips Corporation
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