US3597537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implosion-resistant cathode-ray tube utilizing a metal band
Assignee: Sony Corp
•
Filing: 1969-06-02
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Granted: 1971-08-03
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Expires: 1989-06-02
Abstract
Abstract A cathode-ray tube having a metal band wrapped therearound, the ends of the metal band being welded together. The metal band has projections which are available for tensioning the metal band lapped end portions which are electrically welded to each other for securing the tensioned band on the tube, at least one of the lapped end portions has projections which extend therefrom to define a restricted region of contact with another of the lapped end portions at which the welding is effected, and at least one of the extending projections is adapted to engage the tube surface so as to space the outermost of the lapped end portions from the end portion overlapped thereby except at the restricted region of contact.
Inventors
- 👤 Mikio Kudo
- 👤 Kunio Tsuboi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:25
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/87
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
160 words
Metal band means to be wrapped around a cathode-ray tube in tensioned condition and having at least two lapped end portions to be electrically welDed to each other for securing the tensioned band means on the tube, in which one of said two lapped end portions has first projecting means extending therefrom to define a restricted region of contact with the other of said two end portions at which the welding is to be effected, and said band means further has second projecting means extending inwardly from a portion of said band means which is adjacent the end portion which is outermost at said two lapped end portions, said second projecting means being spaced in the longitudinal direction of said band means from the end portion overlapped by said outermost end portion so as to be adapted to engage the tube surface for spacing said outermost end portion from said end portion overlapped thereby except at said first projecting means.
Claim 2
Dependent Claim
160 words
Metal band means to be wrapped around a cathode-ray tube in tensioned condition and having at least two lapped end portions to be electrically welDed to each other for securing the tensioned band means on the tube, in which one of said two lapped end portions has first projecting means extending therefrom to define a restricted region of contact with the other of said two end portions at which the welding is to be effected, and said band means further has second projecting means extending inwardly from a portion of said band means which is adjacent the end portion which is outermost at said two lapped end portions, said second projecting means being spaced in the longitudinal direction of said band means from the end portion overlapped by said outermost end portion so as to be adapted to engage the tube surface for spacing said outermost end portion from said end portion overlapped thereby except at said first projecting means.
Claim 3
Dependent Claim
128 words
Metal band means according to claim 1, in which said metal band means includes a main band portion of sufficient length to extend around a major part of the periphery of the tube and a bridging band portion extending between the ends of said main band portion and being in overlapping relation therewith, so that said two lapped end portions are constituted by one end of said main band portion and the adjacent end of said bridging band portion and another two lapped end portions are constituted by the other ends of said main and bridging band portions, and in which said band means has said first and second projecting means for said other two lapped end portions as well as for the first-mentioned two lapped end portions.
Claim 4
Dependent Claim
40 words
Metal band means in accordance with claim 1, in which the band means has at least one other projecting means spaced apart from said lapped end portions, and being adapted to be engaged by means for tensioning the band means.
Claim 5
Dependent Claim
26 words
Metal band means in accordance with claim 1, in which the band means further includes a plurality of fixtures welded thereto for mounting the cathode-ray tube.
Claim 6
Dependent Claim
17 words
Metal band means in accordance with claim 1, in which the band means is a metal strap.
Claim 7
Dependent Claim
24 words
Metal band means in accordance with claim 5, in which said first projecting means includes at last two projections spaced apart along said strap.
Claim 8
Dependent Claim
42 words
Metal band means in accordance with claim 6, in which the metal strap has at least one other projecting means spaced apart from said first and second projecting means and being adapted to be engaged by means for tensioning the band means.
Claim 9
Dependent Claim
35 words
Metal band means according to claim 1, in which a highly electrically conductive member is disposed at the inner side of said band means along said lapped end portions which are to be electrically welded.
Claim 10
Dependent Claim
41 words
Metal band means according to claim 8, in which an adiabatic member is disposed at the inner side of said conductive member so as to be interposed between the latter and the tube on which the band is to be secured.
Claim 11
Dependent Claim
83 words
Metal band means according to claim 9, in which a deformable member having a low coefficient of friction with respect to the band and the tube on which the band is to be secured is disposed at the inner side of said adiabatic member so as to be interposed between the latter and the tube on which the band is to be secured so as to decrease the frictional resistance of the band to the tube, the deformable member being adiabatic and heat-resistant.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |