Appeal No. 97-2621
Application 08/432,442
Claim 1 stands finally rejected under 35 U.S.C. § 102(b)
as being anticipated by Chen.
Claim 2 stands finally rejected under 35 U.S.C. § 103 as
being unpatentable over Chen.
The Invention
The invention is directed to an inline electron gun
including three cathodes and three consecutive electrodes G1,
G2, and G3. The G2 electrode has two linear projections
protruding in the inline direction of apertures located on the
electrode and the projections extend past an apertured portion
of the G3 electrode in an overlapping relationship therewith.
Independent claim 1 reads as follows:
1. In an inline electron gun, including a plurality
of electrodes spaced from three cathodes in a direction of a
longitudinal axis of said gun, said electrodes forming at
least a beam forming region and a main focus lens in the paths
of three electron beams, a center beam and two side beams,
each of said electrodes including three inline apertures
therein for passage of said three electron beams, and said
beam forming region including said cathodes and three
consecutive electrodes, a G1 electrode, a G2 electrode and a
G3 electrode, the improvement comprising
said G2 electrode having two linear projections
therein on either side of the inline apertures therein, said
projections paralleling the inline direction of said apertures
and protruding in a direction parallel to said longitudinal
2
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