Electrical connectors – Including or for use with coaxial cable – Having means for interconnecting outer conductors of three...
Reexamination Certificate
1998-11-12
2001-03-20
Sircus, Brian (Department: 2839)
Electrical connectors
Including or for use with coaxial cable
Having means for interconnecting outer conductors of three...
C439S675000
Reexamination Certificate
active
06203368
ABSTRACT:
FIELD OF THE INVENTION
The present invention is related to the field of electrical connectors and more particularly to connectors having seizure screws.
BACKGROUND OF THE INVENTION
Enclosures are utilized in cable television signal transmission to provide for the eventual interconnection of the coaxial distribution cable to a plurality of subscriber cables, the enclosures being known as signal conditioning/distribution component boxes and being formed of rugged, durable metal suitable for an outside environment that seals the cable exits against moisture entry. It is desired for such enclosures to provide for the use of jumper cables to establish a temporary connection of the incoming main signal distribution cable to the outgoing main signal distribution cable during servicing of the enclosure, thus providing continued service to the existing subscribers.
It is desired to adapt the enclosure to facilitate connection of the jumper cable to the incoming and outgoing main distribution cable, and disconnection therefrom.
It is also desired that the signal conditioning/distribution component box and its electronic components not be damaged by arcing that may occur during connection or disconnection of a jumper cable. Also, when the jumper cable is not in service, it is desired that signal performance of the signal conditioning/distribution component box not be adversely affected by the presence of the adapter.
SUMMARY OF THE INVENTION
In the present invention, an adapter is defined that is affixable to the enclosure in a manner that permits connection with and disconnection from a jumper cable at a separable interface, while establishing an electrical connection with the main distribution cable signal conductor by a seizure contact. A separable mechanical interface and seizure contact are integrated into a one piece conductive connector shell. The connector shell includes a threaded portion adjacent the seizure contact at one end thereof, to be threaded into an aperture of the conductive enclosure wall adjacent a subscriber cable exit. The seizure contact is affixed within a large diameter bore end of a dielectric sleeve affixed into the end of the connector shell forwardly of the threaded portion and defines a compression face at an end of the adapter to abut the inner conductor of the main distribution cable at the cable exit of the enclosure. A contact having a plurality of resilient beams defines an annular band of pin-engaging springs for assured current-carrying capability, is disposed within a central cavity of the seizure contact open away from the compression face and toward the separable mating interface aligned with a small diameter bore of the dielectric sleeve; the annular contact band is matable with an elongate pin of a mating connector upon mating at the separable interface at an end opposed to the seizure contact. The adapter and the matable connector may utilize a bayonet-style coupling (BNC) to facilitate mating and unmating.
An embodiment of the invention will now be described by way of example with reference to the accompanying drawings.
REFERENCES:
patent: 3983457 (1976-09-01), Smith
patent: 3989333 (1976-11-01), Cauldwell
patent: 4094574 (1978-06-01), Gunn
patent: 4165911 (1979-08-01), Laudig
patent: 4206963 (1980-06-01), English et al.
patent: 4226495 (1980-10-01), Palle et al.
patent: 4990109 (1991-02-01), Romerein et al.
patent: 5209678 (1993-05-01), Allen et al.
patent: 5677578 (1997-10-01), Tang
patent: 5814905 (1998-09-01), Tang
patent: 2941071 A1 (1981-04-01), None
patent: 0 187 203 (1986-07-01), None
patent: WO 97/04501 (1997-02-01), None
Prasad Chandrika
Sircus Brian
The Whitaker Corporation
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