초록 ▼

A multi-purpose fan including an electrically driven fan blade assembly, a heating coil positioned in the front of the blade assembly and rotatable air directing means which in use causes a gyratory exeunt air current. The fan also includes a micro-processor operatively associated with temperature s

A multi-purpose fan including an electrically driven fan blade assembly, a heating coil positioned in the front of the blade assembly and rotatable air directing means which in use causes a gyratory exeunt air current. The fan also includes a micro-processor operatively associated with temperature sensors and control means to effect automated use of the fan in either a cooling or a heating mode.

대표청구항 ▼

A multi-purpose fan comprising a portable housing containing the following components: an electrically driven fan blade assembly, at least one heating coil positioned in the air current of said fan blade assembly, a heating-cooling mode selector, temperature sensing means to sense the temperature of

A multi-purpose fan comprising a portable housing containing the following components: an electrically driven fan blade assembly, at least one heating coil positioned in the air current of said fan blade assembly, a heating-cooling mode selector, temperature sensing means to sense the temperature of air entering the fan, speed control means to vary the speed of the fan blade assembly; power control means to vary the power output of the heating coil, and a micro-processor circuit including a solid state timing device, selected temperature control means, and operating time selection means, said micro-processor circuit being operatively associated with said mode selector, said temperature sensing means, said speed control means and said power control means and operating said speed control means and said power control means and causing the fan to operate either as a heater or as a cooling fan, in accordance with selected parameters, operating the fan at high speed in the cooling mode and in the heating mode operating the fan at a speed normally low relative to the high speed in the cooling mode, and the micro-processor circuit providing pulse means to cause the fan blade assembly to operate in the heating mode intermittently for brief periods at high speed relative to normal low speed in the heating mode to substantially increase the air circulation intermittently.