US3603829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inline type triple electron gun assembly
Assignee: Toshiba Corp
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Filing: 1970-05-13
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Granted: 1971-09-07
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Expires: 1990-05-13
Abstract
Abstract An in-line type triple electron gun assembly comprising three electron gun members which are juxtaposed in the common plane and each of which includes a plurality of electrodes spaced apart along its axis, respective corresponding electrodes of three electron gun members being connected by metal supporting strip members which are fused to insulating supporting rods between respective gun members so as to form an integral assembly.
Inventors
- 👤 Asahide Tsuneta
- 👤 Shinichi Sawagota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:13
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/701; H01J29/707; H01J29/48; H01J29/50; H01J29/503; H01J29/82; H01J31/00; H01J31/08; H01J31/10; H01J31/20; H01J31/201; H01J31/203; H01J31/206
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
197 words
An in-line type triple gun assembly comprising three electron gun members, each of said electron gun members including a plurality of electrodes spaced apart along an axis along which an electron beam passes, axes of said three electron gun members being juxtaposed in a common plane; first and second supporting strip members, said first supporting strip member having outwardly extending projections and two such first supporting strip members clamping therebetween corresponding electrodes of the same potential of said three electron gun members; said second supporting strip member including three strip elements each having at least one outwardly extending projection, and two such second supporting strip members clamping therebetween corresponding electrodes at different potentials of said three unit electron gun members; two pairs of insulating supporting rods, each pair of said insulating supporting rods being positioned between adjacent pairs of said electron gun members along the axes thereof and fused to said outwardly extending projections of said first and second supporting strip members; and a convergence electrode mounted at one end of said three unit electron gun members, said convergence electrode being provided at its bottom with perforations for passing electron beams travelling through said electron gun members.
Claim 2
Dependent Claim
197 words
An in-line type triple gun assembly comprising three electron gun members, each of said electron gun members including a plurality of electrodes spaced apart along an axis along which an electron beam passes, axes of said three electron gun members being juxtaposed in a common plane; first and second supporting strip members, said first supporting strip member having outwardly extending projections and two such first supporting strip members clamping therebetween corresponding electrodes of the same potential of said three electron gun members; said second supporting strip member including three strip elements each having at least one outwardly extending projection, and two such second supporting strip members clamping therebetween corresponding electrodes at different potentials of said three unit electron gun members; two pairs of insulating supporting rods, each pair of said insulating supporting rods being positioned between adjacent pairs of said electron gun members along the axes thereof and fused to said outwardly extending projections of said first and second supporting strip members; and a convergence electrode mounted at one end of said three unit electron gun members, said convergence electrode being provided at its bottom with perforations for passing electron beams travelling through said electron gun members.
Claim 3
Dependent Claim
89 words
The in-line type triple electron gun assembly according to claim 1 wherein each of said electron gun members comprises first to fifth electrodes, the third to fifth electrodes are maintained at the same potential, first and second electrodes are maintained at different potentials, each pair of said first supporting strip members are secured to respective groups of said third to fifth electrodes and each pair of said second supporting strip members are secured to respective groups of said first and second electrodes of said three unit electron gun members.
Claim 4
Dependent Claim
35 words
The in-line type triple electron gun assembly according to claim 1 wherein each of said outwardly extending projections of said first and second supporting strip members is formed with a notch at its outer edge.
Claim 5
Dependent Claim
50 words
The in-line type triple electron gun assembly according to claim 1 wherein cylindrical projections are formed at the bottom of said convergence electrode, each of said projections including oNe of said perforations for passing said electron beams and being received in the outermost electrode of one of said gun members.
References Cited (Backward Citations)
US2859378A
Cited
US3434819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |