Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1988-04-04
1989-06-13
Swann III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
307 66, 340326, 340331, 340693, 379 40, G08B 1300
Patent
active
048396303
ABSTRACT:
In a mobile home park having a source of a.c. house current, an emergency signal system for individual mobile homes includes a master unit including a step-down transformer electrically connected to the house current, an alarm circuit electrically connected to the transformer and including a high intensity flashing alarm lamp and an electrically operated horn, and a switch mounted on a box housing the transformer and much of the circuitry, the box being portable and positioned for easy accessibility. Lamps, mounted on the box, are provided to indicate that the transformer is receiving current, to illuminate the switch, and to indicate when the alarm has been activated. The flashing alarm lamp and horn are mounted on the outside of the mobile home. A second switch, hard wired into the alarm circuit, is mounted on the end of a long extension cord, whereby the alarm can be actuated from a place remote from the box as well as at the box. The box and interior circuitry permit the plugging in of a battery pack to energize the device in the event of failure of the house current, and a jack for receiving a connector for actuating a telephone dialer.
REFERENCES:
patent: 3886534 (1975-05-01), Rosen et al.
patent: 3925763 (1975-12-01), Wadhwani et al.
patent: 4189721 (1980-02-01), Doell
patent: 4212003 (1980-07-01), Mishoe et al.
patent: 4518946 (1985-05-01), Solomon
patent: 4535391 (1985-08-01), Hsiao
patent: 4686505 (1987-08-01), Vanderburg
Mullen Jr. Thomas J.
Swann III Glen R.
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