Communications: electrical – Selective – Having indication or alarm
Patent
1980-11-13
1982-10-19
Swann, III, Glen R.
Communications: electrical
Selective
Having indication or alarm
339 18R, 339198R, 34081520, G08G 100, H01R 900, G08B 536
Patent
active
043552951
ABSTRACT:
A method of allowing for manual connection of electrical terminals of several separate and distinct electrical devices mounted at a selected location and used jointly to control signals displayed at a traffic intersection, comprises the steps of fixing a number of junction blocks on a common display panel, permanently connecting the terminals of the separate devices to selected ones of the junction blocks in a positional pattern not dictated by the origin device of the terminals and releasably connecting selected ones of said junction blocks at said display panel to adjust the hardwired operation or program of the separate and distinct electrical devices as they are used to control traffic at the aforementioned intersection. This method can be accomplished by providing each junction block on the common display panel with a first element adapted to be permanently wired to a selected one of the terminals, a connector receiving second element adapted to be connected to a second element of another junction block on the panel and means for electrically connecting the first element and the second connector receiving element of each block. In this manner, the blocks present connectable structures which can be hardwired at the front of the control panel to provide desired operation of the traffic control unit in accordance with the method set forth above.
REFERENCES:
patent: 2787773 (1957-04-01), Potter
patent: 3257642 (1966-06-01), Lazerges
patent: 3886496 (1975-05-01), Spilo et al.
patent: 4001797 (1977-01-01), Buss et al.
patent: 4061902 (1977-12-01), Battle
Gulf & Western Manufacturing Company
Swann III Glen R.
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