Electric resistance heating devices – Heating devices – Radiant heater
Reexamination Certificate
2007-02-27
2007-02-27
Robinson, Daniel (Department: 3742)
Electric resistance heating devices
Heating devices
Radiant heater
C118S724000
Reexamination Certificate
active
11228964
ABSTRACT:
A heating arrangement heats a first major surface of a workpiece with an illumination energy such that a first portion of the illumination energy is directly incident upon the first major surface of the workpiece and a second portion of the illumination energy is directed such that, at least initially, the second portion would miss the first major surface. A reflector, having a central opening, reflects at least some of the second portion of the illumination energy onto the peripheral edge region of the workpiece for preheating compensation. The reflector is configured for shadow-free exposure of a second, opposing major surface of the workpiece to a flash heating energy. A workpiece manipulation arrangement is described to provide for dynamic preheating movement to vary a heating profile across the workpiece and, thereafter, move the workpiece to a flash heating position. Automatic workpiece centering is featured by the manipulation arrangement.
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Bumbulovic Miaden
Camm Dave
Dets Sergiy
Krasnich Mike
McCoy Steve
Mattson Technology Inc.
Pritzkau Patent Group LLC
Robinson Daniel
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