초록 ▼

A clothes dryer temperature control system or circuit is provided with a thermally biased thermostat adjacent to the air outlet of the drying drum. Further, a thermally biased control thermostat is provided adjacent the air inlet of the dryer drum. The two thermostats are controlled through a multip

A clothes dryer temperature control system or circuit is provided with a thermally biased thermostat adjacent to the air outlet of the drying drum. Further, a thermally biased control thermostat is provided adjacent the air inlet of the dryer drum. The two thermostats are controlled through a multiple contact switch controller which allows the dryer to operate in a high heat, medium heat, low heat, and damp dry heating cycles. Additionally, in a gas dryer embodiment a trimmer thermostat is located in circuit with the thermally biased resistor of the thermally biased air inlet thermostat so as to decrease the response time of this thermostat on its first cycle to prevent damage to clothing during initial operation of a gas dryer.

대표청구항 ▼

A control circuit for operating a clothes dryer having a dryer drum, a drum air inlet and a drum air outlet permitting an air stream to pass through the dryer drum, and a heating device for heating the air stream before the air stream passes through the dryer drum, the control circuit comprising: a

A control circuit for operating a clothes dryer having a dryer drum, a drum air inlet and a drum air outlet permitting an air stream to pass through the dryer drum, and a heating device for heating the air stream before the air stream passes through the dryer drum, the control circuit comprising: a first thermally biased thermostat mounted in the dryer between the heating device and the drum air inlet and being electrically connected in series with the heating device, the first thermally biased thermostat being responsive to temperature of the air stream prior to the air stream passing through the dryer drum to move between open and closed positions for controlling corresponding heating and non-heating operation of the heating device, the thermally biased thermostat including a first heat biasing resistor which when energized alters thermal response of the first thermally biased thermostat; a switch temperature controller mounted to the dryer for controlling operation of the dryer, the switch controller having at least one dryer operation position corresponding to a heat setting temperature below maximum temperature setting that initiates and maintains the heating operation of the heating device and causes electricity to flow through a circuit path that energizes the first heat biasing resistor of the thermostat, the first heat biasing resistor continually heating the first thermally biased thermostat to reduce said heat setting temperature blow said maximum temperature setting at which the first thermally biased thermostat cycles on an off to reduce the temperature of the air stream entering the dryer drum through drum air inlet.