Electric lamp or space discharge component or device manufacturi – Process – With assembly or disassembly
Reexamination Certificate
2005-04-05
2005-04-05
Williams, Joseph (Department: 2879)
Electric lamp or space discharge component or device manufacturi
Process
With assembly or disassembly
C378S141000
Reexamination Certificate
active
06875071
ABSTRACT:
The present invention is directed to a radiographic apparatus, and its method of manufacture, that utilizes a single integral housing for providing an evacuated envelope for an anode and cathode assembly. The integral housing is formed from a substrate material, such as Kovar, that has a radiation shielding layer, which is comprised of a powder metal that is deposited with a plasma spray process. The powder metal includes, for example, tungsten and iron, so that the radiation shield layer provides sufficient radiation blocking and heat transfer characteristics such that an additional external housing is not required. The integral housing is air cooled, and thus does not utilize any liquid coolant. In addition, the assembly utilizes a dielectric gel polymer material to electrically insulate electrical connections on the housing.
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Artig Christopher F.
Salmon Deborah L.
Varian Medical Systems Inc.
Williams Joseph
Workman Nydegger
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