Patent US3742247A successfully refreshed from Google Patents.
US3742247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage interconnection system for cathode-ray tubes and the like
Assignee: Individual
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Filing: 1970-11-27
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Granted: 1973-06-26
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Expires: 1990-11-27
Abstract
Abstract One or more linearly distributed resistance elements, such as flexible cables having an outer layer of high-voltage insulating material surrounding an inner continuous core of partially conductive material, are utilized as the interconnecting highvoltage wires in a high-voltage supply, whereby the intensities and frequencies of currents produced in the interconnecting wires upon the occurrence of an arc-over in the high-voltage supply are reduced below the values which would otherwise induce damaging effects in nearby sensitive elements such as transistors, semiconductor diodes or other similar solid-state devices. Similar linearly distributed resistance elements may also be used to connect to other elements to which arc-over from a highvoltage conductor may occur.
Inventors
- 👤 D Sunstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:26
CPC Classifications
H; H02; H02H; H02H9/00; H02H9/02; H01; H01B; H01B7/00; H01B7/0054; H01J; H01J29/00; H01J29/92; H01R; H01R4/00; H01R4/24; H01R4/2404; H01R4/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
140 words
In a cathode-ray tube display system, high-voltage supply circuits comprising electrostatic high-voltage charge storage means having a high-voltage terminal, a current source having a high-voltage terminal for supplying charge to said charge-storage means, a cathode-ray tube having a high-voltage terminal, means for interconnecting all of said terminals to supply high voltage to said tube, and sensitive semiconductor components subject to damage in the event of their overload due to an electrical arc in said high-voltage circuits, the improvement in accordance with which said interconnecting means comprises at least two current-carrying circuits each of which comprises a distributed resistance cable having a resistance sufficiently low to enable normal high-voltage circuit functions in the absence of an arc but sufficiently high to reduce the current of said arc many fold, to a level below that for which said damaging overload will occur.
Claim 2
Dependent Claim
140 words
In a cathode-ray tube display system, high-voltage supply circuits comprising electrostatic high-voltage charge storage means having a high-voltage terminal, a current source having a high-voltage terminal for supplying charge to said charge-storage means, a cathode-ray tube having a high-voltage terminal, means for interconnecting all of said terminals to supply high voltage to said tube, and sensitive semiconductor components subject to damage in the event of their overload due to an electrical arc in said high-voltage circuits, the improvement in accordance with which said interconnecting means comprises at least two current-carrying circuits each of which comprises a distributed resistance cable having a resistance sufficiently low to enable normal high-voltage circuit functions in the absence of an arc but sufficiently high to reduce the current of said arc many fold, to a level below that for which said damaging overload will occur.
Claim 3
Dependent Claim
32 words
A display system according to claim 1, in which the distributed resistance of each of said cables extends at least two-thirds of the distance between those of said terminals which it interconnects
Claim 4
Dependent Claim
31 words
A display system in accordance with claim 1, in which the distributed resistance of each of said cables extends substantially the entire distance between those of said terminals which it interconnects.
Claim 5
Dependent Claim
119 words
In a television receiver comprising a cathode-ray tube having a high-voltage terminal, high-voltage rectifier means having a high-voltage terminal, high-voltage capacitor means having a high-voltage terminal, high-voltage leads interconnecting said high-voltage terminals to supply high voltage from said rectifier to said tube, and low-voltage semiconductor elements positioned so as to be subject to damage in response to large surges of arcing current in any of said leads: the improvement according to which each of said leads connected to said high-voltage terminal of said capacitor comprises a flexible distributed-resistance cable, the resistance and disposition of each sAid cable being such as to reduce the current therethrough in the event of arcing to a level below that productive of said damage.
Claim 6
Dependent Claim
119 words
In a television receiver comprising a cathode-ray tube having a high-voltage terminal, high-voltage rectifier means having a high-voltage terminal, high-voltage capacitor means having a high-voltage terminal, high-voltage leads interconnecting said high-voltage terminals to supply high voltage from said rectifier to said tube, and low-voltage semiconductor elements positioned so as to be subject to damage in response to large surges of arcing current in any of said leads: the improvement according to which each of said leads connected to said high-voltage terminal of said capacitor comprises a flexible distributed-resistance cable, the resistance and disposition of each sAid cable being such as to reduce the current therethrough in the event of arcing to a level below that productive of said damage.
Claim 7
Dependent Claim
20 words
The apparatus of claim 4, wherein said capacitor means comprises a majority of the capacitance for filtering said high voltage.
Claim 8
Dependent Claim
26 words
The apparatus of claim 4, comprising regulator means for regulating said high voltage, and distributed resistance cable means supplying said regulator means with said high voltage.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |