US3838306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron gun assembly with flexible electrical interconnection for corresponding electrodes and method of fabricating same
Assignee: RCA Licensing Corp
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Filing: 1973-11-23
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Granted: 1974-09-24
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Expires: 1993-11-23
Abstract
Abstract Corresponding electrodes in each respective electron gun of a triple electron gun color television picture tube are interconnected by welding so as to electrically couple a light metallic ribbon tab to each such corresponding electrode prior to glassing. This allows glassing without need for disturbing gun alignment by making welded connections after glassing. Weld burrs and sharp corners are thereby spaced at sufficient distance from the tube neck to reduce likelihood of arcing therefrom to the neck.
Inventors
- 👤 L Jenne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:06
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/48; H01J29/50; H01J29/82
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
100 words
A plural electron gun assembly for a color television picture tube comprising: first, second and third electron guns, each electron gun respectively including corresponding electrodes of substantially circular cross section; support means joined to a corresponding electrode along a predetermined portion of its periphery, respectively, in each respective electron gun so as to form a rigid structure therewith in said respective electron gun, and flexible metallic tab means welded to said structure in each electron gun, said tab means being electrically coupled to each of said corresponding electrodes at a location, respectively, within said predetermined portion of its periphery, respectively.
Claim 2
Dependent Claim
100 words
A plural electron gun assembly for a color television picture tube comprising: first, second and third electron guns, each electron gun respectively including corresponding electrodes of substantially circular cross section; support means joined to a corresponding electrode along a predetermined portion of its periphery, respectively, in each respective electron gun so as to form a rigid structure therewith in said respective electron gun, and flexible metallic tab means welded to said structure in each electron gun, said tab means being electrically coupled to each of said corresponding electrodes at a location, respectively, within said predetermined portion of its periphery, respectively.
Claim 3
Dependent Claim
18 words
The apparatus of claim 1 wherein said tab means is welded directly to each of said corresponding electrodes.
Claim 4
Dependent Claim
41 words
The apparatus of claim 1 wherein said electron guns are arranged in a delta configuration, said predetermined portion of the periphery of each electron gun being centered about a point on said periphery substantially equidistant from the other two electron guns.
Claim 5
Dependent Claim
18 words
The apparatus of claim 3 wherein said tab means is welded directly to each of said corresponding electrodes.
Claim 6
Dependent Claim
25 words
The apparatus of claim 3 wherein said point is the closest point on said periphery that is substantially equidistant from said other two electron guns.
Claim 7
Dependent Claim
18 words
The apparatus of claim 5 wherein said tab means is welded directly to each of said corresponding electrodes.
Claim 8
Dependent Claim
76 words
A plural electron gun assembly for a color television picture tube comprising: first, second and third electron guns, each electron gun respectively including corresponding electrodes; support means joined to a corresponding electrode in each respective electron gun, said support means containing an opening in a region contiguous with each of said electrodes, respectively; and a flexible metallic tab welded to said corresponding electrode in each gun through said opening, said tab electrically interconnecting said corresponding electrodes.
Claim 9
Dependent Claim
76 words
A plural electron gun assembly for a color television picture tube comprising: first, second and third electron guns, each electron gun respectively including corresponding electrodes; support means joined to a corresponding electrode in each respective electron gun, said support means containing an opening in a region contiguous with each of said electrodes, respectively; and a flexible metallic tab welded to said corresponding electrode in each gun through said opening, said tab electrically interconnecting said corresponding electrodes.
Claim 10
Dependent Claim
50 words
The apparatus of claim 7 wherein said electron guns are arranged in a delta configuration, said region contiguous with any one of said electrodes being centered about the closest point on the periphery of said one of said electrodes that is substantially equidistant from the other two of said electrodes.
Claim 11
Dependent Claim
98 words
A plural electron gun assembly for a color television picture tube comprising: first, second and third electron guns having coplanar longitudinal axes, each electron gun respectively including corresponding electrodes; support means joined to a corresponding electrode along a predetermined portion of said electrode in each respective electron gun so as to form a rigid structure therewith in said respective electron gun; a first flexible metallic tab welded to said structure at each of said first and second electron guns; and a second flexible metallic tab welded to said structure at each of said second and third electron guns.
Claim 12
Dependent Claim
98 words
A plural electron gun assembly for a color television picture tube comprising: first, second and third electron guns having coplanar longitudinal axes, each electron gun respectively including corresponding electrodes; support means joined to a corresponding electrode along a predetermined portion of said electrode in each respective electron gun so as to form a rigid structure therewith in said respective electron gun; a first flexible metallic tab welded to said structure at each of said first and second electron guns; and a second flexible metallic tab welded to said structure at each of said second and third electron guns.
Claim 13
Dependent Claim
99 words
The apparatus of claim 9 wherein said first flexible metallic tab is welded to said support means for corresponding electrodes in said first and second electron guns at locations outside those where said support means is joined to the predetermined portions of the corresponding electrodes in said first and second electron guns, and said second flexible metallic tab is welded to said support means for corresponding electrodes in said second and third electron guns at locations outside those where said support means is joined to the predetermined portions of the corresponding electrodes in said second and third electron guns.
Claim 14
Dependent Claim
74 words
In a plural electron gun assembly for a color television picture tube, apparatus for electrically interconnecting corresponding electrodes of each respective electron gun comprising: support means welded to a corresponding electrode in each respective electron gun, said support means containing an opening therein in a region contiguous with each of said electrodes, respectively; and a flexible metallic tab welded to, and electrically interconnecting, said corresponding electrode in each respective electron gun through said opening.
Claim 15
Dependent Claim
74 words
In a plural electron gun assembly for a color television picture tube, apparatus for electrically interconnecting corresponding electrodes of each respective electron gun comprising: support means welded to a corresponding electrode in each respective electron gun, said support means containing an opening therein in a region contiguous with each of said electrodes, respectively; and a flexible metallic tab welded to, and electrically interconnecting, said corresponding electrode in each respective electron gun through said opening.
Claim 16
Independent Claim
88 words
A method for electrically interconnecting corresponding electrodes of separate electron guns in a plural electron gun assembly for a color television picture tube, comprising: welding a separate support member to each corresponding electrode to be assembled into a separate electron gun, respectively, so as to form separate rigid structures, respectively; welding a flexible metallic tab to said separate rigid structures; arranging said separate rigid structures at locations at which said structures are to be permanently situated; and glassing the support members to retain said members rigidly in place.
Claim 17
Independent Claim
88 words
A method for electrically interconnecting corresponding electrodes of separate electron guns in a plural electron gun assembly for a color television picture tube, comprising: welding a separate support member to each corresponding electrode to be assembled into a separate electron gun, respectively, so as to form separate rigid structures, respectively; welding a flexible metallic tab to said separate rigid structures; arranging said separate rigid structures at locations at which said structures are to be permanently situated; and glassing the support members to retain said members rigidly in place.
Claim 18
Dependent Claim
15 words
The method of claim 12 wherein said tab is welded to said each corresponding electrode.
Claim 19
Independent Claim
114 words
A method for electrically interconnecting corresponding electrodes of three separate electron guns in an electron gun assembly for a color television picture tube comprising: joining a separate support member to each corresponding electrode to be assembled into a separate electron gun, respectively, so as to form first, second and third separate rigid structures with first, second and third corresponding electrodes, respectively; welding a first flexible metallic tab to said first and second rigid structures; welding a second flexible metallic tab to said second and third rigid structures; arranging said separate rigid structures at locations where said structures are to be permanently situated; and glassing said support members to retain said members rigidly in place.
Claim 20
Independent Claim
114 words
A method for electrically interconnecting corresponding electrodes of three separate electron guns in an electron gun assembly for a color television picture tube comprising: joining a separate support member to each corresponding electrode to be assembled into a separate electron gun, respectively, so as to form first, second and third separate rigid structures with first, second and third corresponding electrodes, respectively; welding a first flexible metallic tab to said first and second rigid structures; welding a second flexible metallic tab to said second and third rigid structures; arranging said separate rigid structures at locations where said structures are to be permanently situated; and glassing said support members to retain said members rigidly in place.
Claim 21
Dependent Claim
41 words
The method of claim 14 wherein said first tab is welded to the support members joined to said first and second corresponding electrodes, and said second tab is welded to the support members joined to said second and third corresponding electrodes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |