Communications: electrical – Systems – Call station
Patent
1974-05-16
1976-06-22
Swann, III, Glen R.
Communications: electrical
Systems
Call station
200DIG1, 307125, 240 213, 340258C, G08B 1326, E05B 1710
Patent
active
039654656
ABSTRACT:
A switch adapted to fit into a conventional switch box controls an entryway light of a building. The switch is connected to a conductive latch in a door controlling access to the entryway to receive the minute electrical charge carried by a person attempting to operate the latch. Upon being triggered by such a charge, the switch will turn on the light for a predetermined time to provide a convenience for those authorized to enter, and a deterrent for those who are not.
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Imperial Inventors International, Inc., File No. R-777F, "Touch Alarm Switch, T.A.S. 100", Dated 11, Sept. 1973.
Heater, J. Courtenay, "Monolithic Timer Makes Convenient Touch Switch", Electronic Design News, Dec. 1, 1972, p. 55.
Hnatek, Eugene R., "Put the IC Timer to Work in a Myriad of Ways", Electronic Design News, Mar. 5, 1973, pp. 54-58.
Nunley, Jay, "Touch-Plate Power Switch", Popular Electronics, Aug., 1972, pp. 50-53.
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Hoberman, Stu, "Touch Module - This New Version Does Many Jobs", Popular Science, Feb. 1973, pp. 124-125.
Huebsch William L.
Swann III Glen R.
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