Multi-filament fluorescent lamp construction

Details Multi-filament fluorescent lamp construction Multi-filament fluorescent lamp construction

1989-11-13

1991-05-14

O'Shea, Sandra L.

Electric lamp and discharge devices

Plural unit

Inter-electrode connection

313236, 313237, H01J 100, H01J 61067

Patent

active

050159070

ABSTRACT:
A multi-filament fluorescent lamp construction (10) having a plurality of filament members (40) disposed on opposite ends of the lamp (10) wherein each of the filaments (40) is provided with a filament stud element (42) and a rotary switch unit (15) operatively associated with a rotary contact unit (13) to bring a contact spring element (32) into sequential electrical contact with the filament stud elements (42) so as to switch the flow of electricity from a dead filament member (40) to a live filament member (40).

REFERENCES:
patent: 2659836 (1953-11-01), Germer
patent: 2709767 (1955-05-01), Germer
patent: 3504218 (1970-03-01), Enidy et al.
patent: 3919579 (1975-11-01), Lemmers
patent: 4454447 (1984-06-01), Roche et al.
patent: 4745333 (1988-05-01), Takagi et al.

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