초록 ▼

An electronic pressing iron having a soleplate and a housing connected to the soleplate is disclosed herein. An electric resistance heating element is mounted in the soleplate for receipt of an alternating current from a suitable source. A temperature control thermostat is connected in series with t

An electronic pressing iron having a soleplate and a housing connected to the soleplate is disclosed herein. An electric resistance heating element is mounted in the soleplate for receipt of an alternating current from a suitable source. A temperature control thermostat is connected in series with the electric heating element and is mounted in good heat conduction relationship with the soleplate to control the temperature thereof. A motion and attitude sensing switch is mounted in a handle of the housing and provides a motion signal to a programmable timer also mounted in the handle. A thermal relay mounted in the handle is connected to the programmable timer to receive a time out signal therefrom. When the electronic pressing iron is switched on and is stationary with its soleplate oriented horizontally, for a period of thirty seconds, the programmable timer signals the thermal relay which interrupts the electric current flowing through the heating element. When the electronic pressing iron is resting on its heel rest and is not moved for a period of sixteen minutes, the programmable timer also signals the thermal relay to interrupt electric current flowing through the electric heating element.

대표청구항 ▼

A safety circuit for disabling a heating element of a pressing iron, comprising: a motion sensor connected to a pressing iron and producing a motion sensor signal in response to a state of motion of said pressing iron; a timer connected to said motion sensor and receiving said motion sensor signal t

A safety circuit for disabling a heating element of a pressing iron, comprising: a motion sensor connected to a pressing iron and producing a motion sensor signal in response to a state of motion of said pressing iron; a timer connected to said motion sensor and receiving said motion sensor signal therefrom, said timer being reinitialized when said motion sensor signal indicates said pressing iron is moving, said timer generating a time-out signal after a predetermined period from last receipt of said motion sensor signal indicating said pressing iron is in motion; and a thermal relay connected to said timer and being responsive to said time-out signal therefrom, said thermal relay including a heat operated switch and an electric heater positioned to actuate said switch, said electric heater being connected to a source of electric current and to said timer, said heat operated switch being connected in series with an electric heating element, said thermal relay disabling a flow of an electric current through said electric heating element upon receipt of said time-out signal by said electric heater.