Patent US4064543A successfully refreshed from Google Patents.
US4064543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam equipment
Assignee: Plessey Handel und Investments AG
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Filing: 1976-04-13
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Granted: 1977-12-20
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Expires: 1996-04-13
Abstract
Abstract A mounting arrangement for mounting scanning coil/yoke structures on the neck of an electron beam tube comprises in addition to position adjustment means for producing lateral displacement of the scanning coil/yoke structure on the neck of an electron beam tube along two mutually perpendicular axes as well as axial displacement of the structure along the tube neck, tilt adjusting means for producing tilt of the coil with respect to the axis of the tube neck and constructed and arranged to afford simultaneous lateral displacement and tilt of the coil structure relative to the tube neck axis to afford optimum convergence control taking into account mechanical limitations imposed by the tube neck on which the scanning coil is mounted.
Inventors
- 👤 Peter Harold Phillips
- 👤 David William Warwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:40
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/82; H01J29/823
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
160 words
A mounting arrangement for mounting scanning coil/yoke structures on the neck of an electron beam tube comprising position adjustment means for producing lateral displacement of the scanning coil/yoke structure on the neck of the electron beam tube along two mutually perpendicular axes as well as axial displacement of the structure along the tube neck and tilt adjusting means for producing tilt of the coil with respect to the axis of the tube neck and constructed and arranged to afford simultaneous lateral displacement and tilt of the coil structure relative to the tube neck axis to afford optimum convergence control taking into account mechanical limitations imposed by the tube neck on which the scanning coil is mounted, wherein said tilt adjustment means comprises a tilt ring structure having internal peripheral cam tracks co-operable with surfaces on the scanning coil/yoke structure to effect tilting of the coil in response to relative rotation between the tilt ring structure and the scanning coil/yoke structure.
Claim 2
Dependent Claim
160 words
A mounting arrangement for mounting scanning coil/yoke structures on the neck of an electron beam tube comprising position adjustment means for producing lateral displacement of the scanning coil/yoke structure on the neck of the electron beam tube along two mutually perpendicular axes as well as axial displacement of the structure along the tube neck and tilt adjusting means for producing tilt of the coil with respect to the axis of the tube neck and constructed and arranged to afford simultaneous lateral displacement and tilt of the coil structure relative to the tube neck axis to afford optimum convergence control taking into account mechanical limitations imposed by the tube neck on which the scanning coil is mounted, wherein said tilt adjustment means comprises a tilt ring structure having internal peripheral cam tracks co-operable with surfaces on the scanning coil/yoke structure to effect tilting of the coil in response to relative rotation between the tilt ring structure and the scanning coil/yoke structure.
Claim 3
Dependent Claim
29 words
A mounting arrangement as claimed in claim 1, in which the scanning coil/yoke structure is pivotally mounted on a further ring structure against which the tilt ring structure abuts.
Claim 4
Dependent Claim
55 words
A mounting arrangement as claimed in claim 1, in which the cam tracks on the tilt ring structure which follow generally helical paths are tapered so that the centre of the scanning coil/yoke structure is displaced laterally relative to the tube axis as well as being tilted in response to rotation of the tilt ring.
Claim 5
Dependent Claim
122 words
A mounting arrangement for mounting scanning coil/yoke structures on the neck of an electron beam tube comprising position adjustment means for producing lateral displacement of the scanning coil/yoke structure on the neck of the electron beam tube along two mutually perpendicular axes and for producing axial displacement of the structure along the tube neck and tilt adjusting means for producing tilt of the coil with respect to the axis of the tube neck and tilt of the coil/yoke structure relative to the tube neck axis with simultaneous compensating lateral displacement of a rear end of the coil/yoke structure for maintaining the center point of said rear end constant with respect to the axis of the tube neck independently of the tilting action.
Claim 6
Dependent Claim
122 words
A mounting arrangement for mounting scanning coil/yoke structures on the neck of an electron beam tube comprising position adjustment means for producing lateral displacement of the scanning coil/yoke structure on the neck of the electron beam tube along two mutually perpendicular axes and for producing axial displacement of the structure along the tube neck and tilt adjusting means for producing tilt of the coil with respect to the axis of the tube neck and tilt of the coil/yoke structure relative to the tube neck axis with simultaneous compensating lateral displacement of a rear end of the coil/yoke structure for maintaining the center point of said rear end constant with respect to the axis of the tube neck independently of the tilting action.
Claim 7
Dependent Claim
38 words
A mounting arrangement as claimed in claim 4, including locating means for positively locating said arrangement on the neck of the tube and comprising a funnel ring structure bonded to the flared part of the electron beam tube.
Claim 8
Dependent Claim
55 words
A mounting arrangement as claimed in claim 4, including locating means for positively locating said arrangement on the neck of the tube and comprising a frame structure to which said arrangement is attached and which is clamped to the neck of the tube and an annular electron beam bender device clamped to the tube neck.
Claim 9
Dependent Claim
42 words
A mounting arrangement as claimed in claim 6, in which the frame structure embodies screw adjustable pads which can be displaced in order to take up free movement between the frame structure and the flared part of the tube and beam bender.
References Cited (Backward Citations)
US3582848A
Cited
US3861233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |