High temperature fluid heater

Claim 1

IN A HEATER FOR HIGH TEMPERATURE FLUID, A LONGITUDINALLY EXTENDING OUTER CLOSED SHELL HAVING FLUID INLET AND A FLUID OUTLET, A SERIES OF INSULATORS HAVING A PLURALITY OF APERTURES EXTENDING THROUGH EACH INSULATOR ARRANGED IN LONGITUDINALLY ABUTTING AND ALIGNED RELATIONSHIP ALONG THE LENGTH OF THE HEATER WITHIN THE SHELL TO FORM A PLURALITY OF ORIFICES HAVING INNER WALLS EXTENDING THROUGH THE INSULATORS, A TUBULAR RESISTOR HAVING SUBSTANTIALLY CONTINUOUS INNER AND OUTER SURFACES EXTENDING LONGITUDINALLY THROUGH EACH ORIFICE, PERIPHERALLY SPACED PROJECTIONS EXTENDING INWARDLY FROM AND LONGITUDINALLY ALONG THE INNER WALLS OF THE ORIFICES FOR CENTRALLY SUPPORTING A RESISTOR WITHIN EACH ORIFICE AND FOR SPACING THE RESISTOR APART FROM THE INNER WALLS OF THE ORIFICE SO AS TO FORM INNER AND OUTER PASSAGEWAYS WITH RESPECT TO THE RESISTOR THROUGH EACH ORIFICE AND EXTERNAL ELECTRICAL CONNECTION TO SAID RESISTORS WHEREBY FLUID FLOWING THROUGH THESE ORIFICES IS HEATED BY CONTACT WITH BOTH SURFACES OF THE RESISTOR AND THE WALLS OF THE ORIFICE.