Electric heating – Metal heating – By arc
Patent
1976-09-16
1979-01-16
Truhe, J. V.
Electric heating
Metal heating
By arc
426243, 426466, 99386, 99393, A47J 3700
Patent
active
041350774
ABSTRACT:
Apparatus for heating the outer surface of an object such as a loaf of bread. The object is conveyed through a heating chamber which has a plurality of apertures therein. A plurality of laser beams of a wavelength that is readily absorbed by the outer surface of the object are generated and each beam is directed through a respective aperture in the chamber. Each beam entering the chamber is diverged to scatter the beam and spread the energy contained therein out over a wider area than that in which the energy is initially contained. The divergent beams are directed into a predetermined zone within the chamber through which the object must pass and the laser radiation within the zone strikes the outer surface of the object and is absorbed thereby to heat the outer surface.
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Paschall M.
Truhe J. V.
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