Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
165 words
In an electron beam-sustainer device having means including two oppositely disposed walls defining a working region therebetween and through which a working gas is passed; means for generating and introducing into said working region a broad area stream of electrons through a thin foil disposed in one of said walls; and means including two electrodes spaced one from another for providing an electrical field across said working region traversed by said stream of electrons, the improvement comprising: an electrically conductive shield member having a plurality of web portions spaced one from another to at least substantially define a plurality of openings, said shield member being disposed over said foil whereby said electron stream must pass through said foil and then through said openings to enter said working region, said web portions having a depth, size and spacing one from another whereby said shield member permits said stream of electrons passing through its said openings to traverse substantially only a predetermined volume in said working region.
Claim 2
Dependent Claim
165 words
In an electron beam-sustainer device having means including two oppositely disposed walls defining a working region therebetween and through which a working gas is passed; means for generating and introducing into said working region a broad area stream of electrons through a thin foil disposed in one of said walls; and means including two electrodes spaced one from another for providing an electrical field across said working region traversed by said stream of electrons, the improvement comprising: an electrically conductive shield member having a plurality of web portions spaced one from another to at least substantially define a plurality of openings, said shield member being disposed over said foil whereby said electron stream must pass through said foil and then through said openings to enter said working region, said web portions having a depth, size and spacing one from another whereby said shield member permits said stream of electrons passing through its said openings to traverse substantially only a predetermined volume in said working region.
Claim 3
Dependent Claim
16 words
Apparatus as defined in claim 1 wherein said shield member is in contact with said foil.
Claim 4
Dependent Claim
15 words
Apparatus as defined in claim 1 wherein said shield member is spaced from said foil.
Claim 5
Dependent Claim
34 words
Apparatus as defined in claim 2 wherein said foil and shield member are recessed in said one of said walls and the exposed surface of said shield member is at least substantially flush therewith.
Claim 6
Dependent Claim
34 words
Apparatus as defined in claim 3 wherein said foil and shield member are recessed in said one of said walls and the exposed surface of said shield member is at least substantially flush therewith.
Claim 7
Dependent Claim
15 words
Apparatus as defined in claim 4 wherein said shield member comprises one of said electrodes.
Claim 8
Dependent Claim
24 words
Apparatus as defined in claim 6 wherein the other of said electrodes is at least substantially flush with the surface of said other wall.
Claim 9
Dependent Claim
15 words
Apparatus as defined in claim 5 wherein said shield member comprises one of said electrodes.
Claim 10
Dependent Claim
24 words
Apparatus as defined in claim 8 wherein the other of said electrodes is at least substantially flush with the surface of said other wall.
Claim 11
Dependent Claim
18 words
Apparatus as defined in claim 7 wherein said other of said electrodes is a substantially flat metal plate.
Claim 12
Dependent Claim
18 words
Apparatus as defined in claim 9 wherein said other of said electrodes is a substantially flat metal plate.