Electric heating – Metal heating – Of cylinders
Patent
1989-09-18
1990-10-09
Leung, Philip H.
Electric heating
Metal heating
Of cylinders
219 1055F, 426107, 426234, 426243, 99DIG14, H05B 680
Patent
active
049622935
ABSTRACT:
A metallic coated substrate capable of reaching a predetermined surface temperature upon being exposed to microwave energy of a known strength including a base, a metal coating on the base, the coating being formed in a plurality of discrete metal areas having predetermined surface resistivity, the size of the areas being below the arcing size for the surface resistivity, and the resisitivity being such that the predetermined surface temperature will be reached when the substrate is exposed to the microwave energy. Different areas on the base may contain discrete areas of different surface resistivity so that the different areas reach different temperatures. The spacing of the discrete areas may be varied so that the rate of energy emission from those areas differs.
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Dunmore Corporation
Johnson Haynes N.
Leung Philip H.
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