CORRUGATED COAXIAL CABLE

• US 3,566,007 A
• Filed: 06/02/1969
• Issued: 02/23/1971
• Est. Priority Date: 06/02/1969
• Status: Expired due to Term

• Current Assignee: Forney Edgar Wilmont Jr, O'Keefe Michael Francis
• Original Assignee: Forney Edgar Wilmont Jr, O'Keefe Michael Francis
• Inventors: O'KEEFE MICHAEL FRANCIS, FORNEY EDGAR WILMONT JR
• Application Number:
  US04/829,364
• Time in Patent Office: 631 Days
• US Class Current: 174/88.00C
• CPC Class Codes: H01R 43/058 Crimping mandrels
• CPC Class Codes: H01R 9/0503 Connection between two cable ends
• CPC Class Codes: H01R 9/0518 Connection to outer conductor by crimping or by crimping ferrule

Abstract

A connector is disclosed for use with coaxial cable of a type having a rigid armoring sheath which is corrugated and which surrounds a coaxial outer conductor and an inner conductor supported along the center of the cable with dielectric material. The connector includes a one-piece outer conductive shell which is crimped down directly onto the armoring sheath of the cable at its ends and an inner contact structure comprised of a sleeve crimped onto the center conductors of the ends of cables and supported within the outer shell by dielectric inserts. The outer shell has an undeformed inner diameter sufficient to pass over the outside of the armoring sheath for installation of the inner contact structure prior to a final positioning of the outer shell and crimping thereof onto the cable. The outer shell is not much larger in maximum diameter than that of the cable and is relatively smooth to facilitate multiple usage in coaxial tubes carrying twenty or more coaxial cables.

Claims

1. A coaxial electrical connection comprising:

a coaxial cable having an inner conductor and an outer conductor and a protective sheath extended over said outer conductor, said sheath including sheet metal having annular corrugations therein to provide a rigid tubular structure, a connector mechanically and electrically secured to said cable and including an inner contact element terminated to the cable inner conductor and an outer conductive member terminated to the cable outer conductor, said outer conductive member comprising a shell of malleable metal including a tubular end portion extended over and receiving therein the cable protective sheath, said end portion being crimped inwardly against said protective sheath forming a series of indentations of a configuration overlying and corresponding to the configuration of said corrugations around the periphery of said protective sheath, said outer member having an outer diameter not much greater than the outer diameter of said protective sheath.

2. The connection of claim 1 wherein said shell is comprised of one piece of sheet metal formed into tubular configuration.

3. A splice between coaxial cables each of the type having an inner conductor, an outer conductor and an outer protective sheath formed of corrugated sheet metal, comprising:

two component parts, one of said parts being comprised of a center contact element including a sleeve of malleable metal receiving and joining together the center conductors of a pair of said coaxial cables and crimped inwardly in electrical and mechanical connection with said center conductors, said one of said parts including further a dielectric element positioned on each end of said sleeve and engaged against an end of a sheath and outer conductor of a corresponding one of the pair of said coaxial cables, the other of said parts being comprised of a shell of malleable metal including at each end a tubular portion received over and crimped inwardly directly against the protective sheath of each of said coaxial cables, said shell being comprised of sheet metal with a series of deformations in said tubular portion, said series overlying said protective sheath of each of said coaxial cables and of a configuration corresponding to that of the corrugations of said protective sheaths.

4. The splice of claim 3 wherein, said one part consists of said sleeve with said dielectric elements being secured to the ends of said sleeve and in radial-spaced relationship with respect to said shell, and said shell consists of a one-piece metal tubular element.