Gte Products Corporation

Charles R Parent

Edward A Webb

Joseph P Stark

Joan L Mishou

Jonathan B Arold

Johathan B Arold

An electric air or gas heater includes a plurality of equal diameter elongated linear serpentine resistive wire heating elements circularly arranged in parallel about a common axis and disposed within a cylindrical chamber having separable air or gas entrance and exit sections at its opposite ends. Each heating element is disposed in a close-fitting ceramic or quartz tube. The tubes are supported by discs at the opposite ends of the chamber which block air or gas flow outside the cross-sectional area of the tubes. Each heating element has a ceramic cylinder extending through the center thereof through which a wire for electrically connecting adjacent pairs of heating elements extends.

Electric air or gas heater utilizing a plurality or serpentine heating

A forced gas electric heater has a serpentine heating element in series with a preheat coil. Gas to be heated first flows through the preheat coil before flowing through the serpentine heating element. A thermistor is disposed between two adjacent turns of the preheat coil. The thermistor controls the 'on' time of a solid state power control device which is in series with the preheat coil and the serpentine heating element.

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Durham, NH, United States of America

Charles R Parent