Electrical transmission or interconnection systems – Switching systems – Switch actuation
Patent
1997-03-10
1999-04-27
Elms, Richard T.
Electrical transmission or interconnection systems
Switching systems
Switch actuation
H01H 700
Patent
active
058982400
ABSTRACT:
A timing control switch includes a timer control device and at least a timer adapter electrically connected with an easy accessible and convenient position of an electrical cord of an electrical appliance. The timer adapter has a receiving chamber, two electrical terminals for electrically connecting with two broken ends of the electrical cord, and a movable conducting device with a contact element which is normally kept in contact with the two electrical terminals. The timer control device includes a timer control circuitry for timing control, a connector with two electrical conduct elements, a driving device for driving a driver to move in linear direction so as to drive a connecting bridge electrically connected or disconnecting with the two conduct elements, and battery for providing power supply to the timer control circuitry and the driving device. Whereby when the connector of the timer control device is plugged into the receiving chamber of the timer adapter, the movable conducting device will be driven to drive its electrical contact element disconnected with the two electrical terminals. Therefore, the electrical appliance can be controlled by the timer control device to power on or off at preset time on or time off schedule in the timer control device.
REFERENCES:
patent: 5397930 (1995-03-01), Nilssen
patent: 5530301 (1996-06-01), Fu et al.
patent: 5719362 (1998-02-01), Gray, Jr.
Chan Raymond Y.
Elms Richard T.
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