Communications: electrical – Condition responsive indicating system – Specified indicator structure
Patent
1986-09-02
1989-01-31
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specified indicator structure
340332, 3403694, 362147, G08B 536
Patent
active
048019283
ABSTRACT:
An egress detection system includes an indicator unit having at least three electroluminescent lamps in a linear arrangement and circuitry for sequentially illuminating the electroluminescent lamps on a repeated basis in order from one end of the linear arrangement to the other end of the linear arrangement. The indicator unit includes a plastic extruded panel containing a circuit board on which the electroluminescent lamps are mounted, and a lens covering the electroluminescent lamps and bonded to the panel. The panel includes an electrical connector which allows the panel to be removed from the electronic circuitry and replaced. The electronic circuitry is also provided to sequentially illuminate a group of electroluminescent lamps in one direction in response to a first sensed condition of relative danger and in another direction in response to a second sensed condition of relative danger.
REFERENCES:
patent: 2106968 (1938-02-01), Dannheiser
patent: 3153745 (1964-10-01), Gurian et al.
patent: 3486068 (1969-12-01), Dunn et al.
patent: 3573541 (1969-04-01), Dunn et al.
patent: 3916404 (1975-10-01), Gouge
patent: 3969720 (1976-07-01), Nishino
patent: 4029994 (1977-06-01), Iwans
patent: 4148023 (1979-04-01), Elkin
patent: 4173035 (1979-10-01), Hoyt
patent: 4283657 (1981-08-01), Gordon et al.
patent: 4319228 (1982-03-01), Daniels
patent: 4385586 (1983-05-01), Schriever
patent: 4401050 (1983-08-01), Britt et al.
patent: 4422069 (1983-12-01), Edstrom et al.
patent: 4489308 (1984-12-01), Logan, Jr. et al.
William F. Budnovitch, Levine Lighting, "An Emergency Illumination System for Halls", NFPA 101-TCR/ 1936T/Mar. 19, 1986, pp. 54-57, 104-108.
Chloride Group PLC
Swann III Glen R.
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