Radiant energy – Ion generation – Field ionization type
Reexamination Certificate
2008-07-29
2008-07-29
Berman, Jack I. (Department: 2881)
Radiant energy
Ion generation
Field ionization type
C250S427000, C250S424000, C250S492300, C250S426000, C315S111810, C315S111210, C315S111910, C315S111410, C313S361100, C313S359100, C313S154000, C313S161000
Reexamination Certificate
active
11123228
ABSTRACT:
In certain example embodiments of this invention, there is provided an ion source including an anode and a cathode. In certain example embodiments, a multi-piece outer cathode is provided. The multi-piece outer cathode allows precision adjustments to be made, thereby permitting adjustment of the magnetic gap between the inner and outer cathodes. This allows improved performance to be realized, and/or prolonged operating life of certain components. This may also permit multiple types of gap adjustment to be performed with different sized outer cathode end pieces. In certain example embodiments, cathode fabrication costs may also be reduced.
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Guardian Industries Corp.
Maskell Michael
Nixon & Vanderhye P.C.
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