Planar uniform heating surface with additional circumscribing ri

Details Planar uniform heating surface with additional circumscribing ri Planar uniform heating surface with additional circumscribing ri

1994-06-06

1996-12-31

Jeffery, John A.

Electric resistance heating devices

Heating devices

Radiant heater

219521, 219443, 378 35, 430 5, 437962, H05B 100, G21K 500

Patent

active

055902391

ABSTRACT:
A uniform heating fixture and method of use is provided. A heat conductive member having a first plane surface, a second surface and a third plane surface is formed. The first plane surface and the third plane surface are parallel and are connected by a second surface. The third plane surface circumscribes and extends away from the first plane surface, thereby enabling uniform heating of an X-ray mask.

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patent: 5034688 (1991-07-01), Moulene et al.
patent: 5329097 (1994-07-01), Jones et al.
patent: 5476548 (1995-12-01), Lei et al.

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