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US 5,354,221 AGranted
Releasable connector assembly for cathode ray tube
AssigneeReynolds Industries, Inc.
InventorsPatrick D. Doherty, II, David M. McCormick
Life of this patent
Estimating the term…
Abstract
A releasable cathode ray tube connector assembly exhibiting enhanced dielectric standoff for its high-voltage contacts, even at high altitudes where voltage breakdowns frequently can occur. A substantially rigid dielectric sleeve encircles a base portion of a high-voltage contact projecting from the cathode ray tube stem, and a resilient sleeve carried in a cylindrical recess of a mating plug assembly is sized to slide over this rigid sleeve and substantially fill the annular space surrounding the rigid sleeve. An enhanced voltage seal is thereby provided.
Claims25
A releasable connector assembly for a cathode ray tube having a glass stem and a plurality of electrical contacts projecting from the stem, with at least one of the contacts being adapted to carry a high voltage, the connector assembly comprising:
- a substantially rigid dielectric sleeve encircling a base portion of the high-voltage contact of the cathode ray tube, leaving exposed the contact's remote end;
- a plug assembly including a plurality of electrical contacts adapted to mate with the plurality of contacts of the cathode ray tube, the plug assembly further including a cylindrical wall that defines cylindrical recess encircling a high-voltage contact thereof, wherein the plug assembly is adapted to be selectively attachable to, and releasable from, the cathode ray tube stem, and wherein the high-voltage contacts of the plug assembly and the cathode ray tube mate with each other when the plug assembly is selectively attached to the cathode ray tube stem;
- and
- a resilient dielectric sleeve located within the plug assembly's cylindrical wall recess and sized to be slidable over the substantially rigid dielectric sleeve when the plug assembly is selectively attached to the cathode ray tube stem, whereupon the resilient sleeve is radially compressed and deformed between, and substantially fills a space between, the substantially rigid dielectric sleeve and the cylindrical wall recess, such that a high-voltage seal is provided between the mating high-voltage contacts and the other contacts of the cathode ray tube and the plug assembly.
1 more element
A combination comprising:
- a cathode ray tube having a glass stem and a plurality of elongated, substantially parallel electrical contacts projecting from the stem, with at least one of the contacts being adapted to carry a high voltage;
- and
- a connector assembly including
- a substantially rigid dielectric sleeve encircling a base portion of the high-voltage contact of the cathode ray tube, leaving exposed the contact's remote end,
- a plug assembly including a plurality of electrical contacts adapted to mate with the plurality of contacts of the cathode ray tube, the plug assembly further including a cylindrical wall that defines a cylindrical recess encircling a high-voltage contact thereof, wherein the plug assembly is adapted to be selectively attachable to, and releasable from, the cathode ray tube stem, and wherein the high-voltage contacts of the plug assembly and the cathode ray tube mate with each other when the plug assembly is selectively attached to the cathode ray tube stem, and
- a resilient, generally cylindrical dielectric sleeve located within the plug assembly's cylindrical wall recess and sized to be slidable over the substantially rigid dielectric sleeve when the plug assembly is selectively attached to the cathode ray tube stem, whereupon the resilient sleeve is radially compressed and deformed between, and substantially fills a space between, the substantially rigid dielectric sleeve and the cylindrical wall recess, such that a high-voltage seal is provided between the mating high-voltage contacts and the other contacts of the cathode ray tube and the plug assembly.
3 more elements
A combination comprising:
- a cathode ray tube having a glass stem and a plurality of electrical contacts projecting from the stem, with at least one of the contacts being adapted to carry a high voltage;
- and
- a connector assembly including
- a base receptacle formed of a molded plastic material and bonded to the stem of the cathode ray tube and adapted to physically support the plurality of contacts of the cathode ray tube, the base receptacle including a substantially rigid dielectric sleeve encircling a base portion of the high-voltage contact of the cathode ray tube, leaving exposed the contact's remote end,
- a plug assembly including a plurality of electrical contacts adapted to mate with the plurality of contacts of the cathode ray tube, the plug assembly further including a cylindrical wall that defines a cylindrical recess encircling a high-voltage contact thereof, wherein the plug assembly is adapted to be selectively attachable to, and releasable from, the cathode ray tube stem, and wherein the high-voltage contacts of the plug assembly and the cathode ray tube mate with each other when the plug assembly is selectively attached to the cathode ray tube stem, and
- a resilient, generally cylindrical dielectric sleeve located within the plug assembly's cylindrical wall recess wherein the resilient sleeve includes an inner side, an outer side, an inner annular ridge extending completely around its inner side and an outer annular ridge extending completely around its outer side, in alignment with the inner annular ridge, and wherein the resilient sleeve is sized to be slidable over the substantially rigid dielectric sleeve when the plug assembly is selectively attached to the cathode ray tube stem, whereupon the resilient sleeve substantially fills an annular space between the substantially rigid dielectric sleeve and the cylindrical wall of the plug assembly, and the inner and outer annular ridges of the resilient sleeve are radially compressed and deformed between the substantially rigid dielectric sleeve and the cylindrical wall recess of the plug assembly when the plug assembly is selectively attached to the cathode ray tube stem, such that a high-voltage seal is provided between the mating high-voltage contacts and the other contacts of the cathode ray tube and the plug assembly.
3 more elements
Dependencies are inferred from the claim text.