Timer switch

Details Timer switch Timer switch

2007-07-31

2007-07-31

Dinh, Tuan (Department: 2841)

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

C361S800000, C361S689000, C307S141000

Reexamination Certificate

active

11011194

ABSTRACT:
The present invention discloses a timer switch that uses an integrated circuit to control the time and a self-locking electromagnetic coil solenoid valve to drive the operation of a microswitch, which is particularly applicable to be installed on a wall as a timer switch. The switch device uses the electronic control of two 1.5V AA batteries to enter a set time through input keys, and a CPU will issue a pulse with very short timing of 30 ms to the solenoid to produce a magnetic field to drive a turning rod and open a primary switch in order to turn on or off a circuit.

REFERENCES:
patent: 3997742 (1976-12-01), Marquis
patent: 6768643 (2004-07-01), Rust et al.
patent: 2005-353553 (2002-12-01), None

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