Patent US4400645A successfully refreshed from Google Patents.
US4400645A
Expired / Lapsed
US
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CRT Socket assembly
Assignee: AMERICAN PLASTICRAFT Co
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Filing: 1981-07-06
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Granted: 1983-08-23
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Expires: 2001-07-06
Abstract
Abstract A cathode ray tube socket, including a thick film ceramic plate mounted thereon and forming electronic control circuitry in association with the socket structure.
Inventors
- 👤 Stephen J. Simovits, Jr.
- 👤 Christ J. Dumas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:55
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/96; H01R; H01R33/00; H01R33/74; H01R33/76; H01R33/7607; H01R33/7614; H01R33/7621
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
124 words
A cathode ray tube socket for use with a tube having terminal pins normally operating at varying potentials and including means for developing controlled arc gaps for selected ones of said pins, said socket comprising a base, a support member mounted on said base and a cover, a low-voltage arc-gap module mounted on said base, a high-voltage arc gap module mounted in said base, a plate having an electronic circuit formed thereon mounted on said support, said electronic circuit comprising a resistive element, wiper contactors mounted on said plate, said cover enclosing said plate, said support on a portion of said base, said wiper elements providing a means of selectively coupling a voltage from said resistive element to selected ones of said terminal pins.
Claim 2
Dependent Claim
124 words
A cathode ray tube socket for use with a tube having terminal pins normally operating at varying potentials and including means for developing controlled arc gaps for selected ones of said pins, said socket comprising a base, a support member mounted on said base and a cover, a low-voltage arc-gap module mounted on said base, a high-voltage arc gap module mounted in said base, a plate having an electronic circuit formed thereon mounted on said support, said electronic circuit comprising a resistive element, wiper contactors mounted on said plate, said cover enclosing said plate, said support on a portion of said base, said wiper elements providing a means of selectively coupling a voltage from said resistive element to selected ones of said terminal pins.
Claim 3
Dependent Claim
60 words
A socket assembly as in claim 1, wherein said plate is of ceramic and said electronic circuit includes a thick-film material formed as an elongated resistive element on one surface of said plate, and wherein said wiper contactors comprise a pair of elements positioned in spaced relation with one another to couple out adjustable voltages from said conductive resistive material.
Claim 4
Dependent Claim
40 words
A socket as in claim 2, wherein said first wiper contactor couples a voltage to the focus anode of the cathode ray tube and the second wiper contactor couples a voltage to the accelerating anode of the cathode ray tube.
Claim 5
Dependent Claim
68 words
A cathode ray tube socket as in claim 1, wherein said elongated resistive material has a first potential connected to one end and a reference potential at the other end, said resistive material extends in a circular shape, and an air dielectric barrier is formed in said plate in a location between the potential coupled to said one end and the reference potential coupled to the other end.
Claim 6
Dependent Claim
36 words
A socket as in claim 4, wherein a second air dielectric barrier is formed in a location between said first wiper element and a portion of the resistive material which is at a relatively lower potential.
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) | 1986-08-22 | 1987-02-21 | 1987-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-22 | 1991-02-21 | 1991-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-22 | 1995-02-21 | 1995-08-23 | $7700.00 | Window Closed / Lapsed |