Electrical transmission or interconnection systems – Switching systems – With operation facilitating feature
Patent
1979-10-11
1982-01-26
Hix, L. T.
Electrical transmission or interconnection systems
Switching systems
With operation facilitating feature
340 26, G08G 506
Patent
active
043130631
ABSTRACT:
An airport lighting system is provided with a plurality of groups of lights, each light group being assigned to a specific taxiway. The system further includes a selector switch to control a plurality of relay circuits for selecting and reselecting the light groups to be energized. Sequencing means automatically deactivates the regulated power prior to making new selections of light groups and thereafter returns the regulated power.
REFERENCES:
patent: 2486198 (1949-10-01), Newstedt
patent: 3152327 (1964-10-01), Barker
patent: 3531765 (1970-09-01), Christianson et al.
patent: 3715741 (1973-02-01), McWade et al.
patent: 4010380 (1977-03-01), Bailer et al.
Calocerinos & Spina
Dwyer James L.
Hix L. T,.
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