Communications: electrical – Condition responsive indicating system – Specified indicator structure
Patent
1988-04-29
1989-08-08
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specified indicator structure
40902, 340574, 362800, G08B 536, G08B 1324
Patent
active
048557234
ABSTRACT:
An alarm system has an alarm unit that includes a siren, a stroboscopic light, and an address display. The alarm unit is located on a building so as to be visible from the building exterior. The address display is made up of one or more characters, arranged so as to make up the address of the building. The characters are formed by plural light emitting diodes. Switching circuitry activates the siren and the stroboscopic light, and switches the display to full brilliance. Reset circuitry deactivates the siren and the strobscopic light, and returns the display to a preactivation level of brilliance. A portable transmitter unit can be used to activate the alarm system. Interlock circuitry prevents the deactivation of the stroboscopic light and the address display before the siren is deactivated. The alarm system can be operated in one of two modes. The first mode has the siren operate continuously, and the second mode has the siren operate intermittently.
REFERENCES:
patent: 3624635 (1971-11-01), Less
patent: 3863236 (1975-01-01), Clardy
patent: 3911425 (1975-10-01), Muncheryan
patent: 4058919 (1977-11-01), Wakabayashi
patent: 4288784 (1981-09-01), Fusco
patent: 4703184 (1988-03-01), Bach
Davis Chuck
Fritz Marlene M.
Love Betty J.
Sweeney Mary D.
Fails James C.
Mantooth Geoffrey A.
Proto Quick, Inc.
Swann III Glen R.
Zobal Arthur F.
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