Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1991-12-11
1993-09-21
Ng, Jin F.
Communications: electrical
Condition responsive indicating system
Specific condition
232 35, 340310R, 340539, G08B 1314
Patent
active
052472825
ABSTRACT:
A delivery signal and appliance control system generates audible or visual signal within a dwelling to indicate that a delivery, such as a newspaper or piece of mail has been deposited in a remote delivery container, such as a mailbox, and also controls current through electrical wall receptacles inside the dwelling to operate appliances responsive to the delivery. The system has a delivery notification switch at the remote delivery container which is connected to a control box in the dwelling. The control box is connected to dedicated electrical wall receptacles into which electrical appliances may be plugged. The control box has a DC circuit activated by the delivery notification switch upon receipt of an article being deposited in the delivery container to generate an audible or visual signal and to control an AC circuit which allows electrical current through the dedicated electrical receptacles to provide electrical power to electrical appliances plugged into the receptacles. Optionally a radio frequency signal transmitter may be connected to the control box to generate a radio frequency signal which is received by a radio frequency receiver remote from the control box.
REFERENCES:
patent: 4163225 (1979-07-01), Engel
patent: 4287514 (1981-09-01), Wartman
patent: 5036310 (1991-07-01), Russell
Ng Jin F.
Oda Christine K.
Roddy Kenneth A.
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