SHIELDED WIRE CONNECTORS

• US 3,670,293 A
• Filed: 08/20/1970
• Issued: 06/13/1972
• Est. Priority Date: 08/20/1970
• Status: Expired due to Term

• Current Assignee: William Joseph Garver
• Original Assignee: William Joseph Garver
• Inventors: Garver, William Joseph
• Primary Examiner(s): Moore, Richard E.
• Assistant Examiner(s): Hafer, Robert A.
• Application Number:
  US05/065,462
• Time in Patent Office: 663 Days
• Field of Search: 339/220,213,212,177,223,276,143,176 174/75C,78
• US Class Current: 439/585
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/562 Cables with two screens
• CPC Class Codes: H01R 4/028 comprising means for preventing flowing or wicking of solder or flux in parts not desired
• CPC Class Codes: H01R 9/0518 Connection to outer conductor by crimping or by crimping ferrule

Abstract

A shielded cable electrical connector is provided with a coaxial contact section having inner and outer contact members separated from each other by a dielectric means which carries the inner contact member. The outer contact member is provided with axially-spaced ferrule means coaxially aligned with ferrule member means of the inner contact member extending outwardly from the dielectric means. One of the axially-spaced ferrule means has a first section of substantially annular construction and a second section extending substantially tangentially outwardly from the first section so that a drain or ground wire of a shielded cable can be crimped between the first and second sections while a center conductor of the cable is crimped in the ferrule member means of the inner contact member.

Claims

1. An electrical connecting device for a shielded cable of the type comprising a center conductor, an inner insulating sheath in surrounding relationship to said center conductor, an outer insulating sheath in surrounding relationship to said inner insulating sheath, and metallic shielding comprising a drain wire between said inner and outer insulating sheaths, said connecting device comprising:

an outer metallic member, said outer member having a cylindrical contact portion and having a cable attaching portion integral therewith and extending from one end thereof, an inner metallic member coaxially disposed within said outer metallic member, said inner metallic member being adapted to receive said center conductor and being insulated from said outer metallic member, said cable attaching portion comprising first and second ferrule forming sections, said first ferrule-forming section comprising an arcuate bight and sidewalls extending from said bight, one of said sidewalls extending generally tangentially from said bight, the other one of said sidewalls extending from said bight along an arcuate path towards said one sidewall, said other sidewall having a longitudinally extending edge which is adjacent to said one sidewall and spaced inwardly from the longitudinal edge of said one sidewall, said second ferrule forming portion being generally U-shaped and being in alignment with said first ferrule forming portion, whereby, upon locating an end portion of said cable in said connecting device with an exposed portion of said center conductor in said inner metallic member, with an exposed portion of said inner insulating sheath between said sidewalls of said first ferrule forming portion and partially surrounded by said other sidewall thereof, and with an exposed portion of said drain wire adjacent the inner and outer surfaces of said one sidewall and said other sidewall respectively, and with an unstripped portion of said cable within said U-shaped second ferrule forming section, and upon crimping said first and second ferrule forming sections onto said cable, said outer metallic member is electrically connected in an electrical connection to said drain wire by said first ferrule forming portion, and said outer metallic member is mechanically connected to said outer insulating sheath with a mechanical connection which is independent of said electrical connection.

2. A connecting device as set forth in claim 1 wherein said first and second sidewalls of said first ferrule forming section have transversely extending serrations therein, the serrations in said first sidewall being axially offset relative to the serrations in said second sidewall whereby, said drain wire is formed into an undulating configuration between said sidewalls upon crimping.

3. A connecting device as set forth in claim 2, said connecting device comprising a plug member, said inner metallic member comprising a contact pin.

4. A connecting device as set forth in claim 2, said connecting device comprising a socket member, said inner metallic member comprising a contact socket.

5. An electrical connecting devicE on one end of a shielded cable, said cable being of the type comprising a center conductor, an inner insulating sheath in surrounding relationship to said center conductor, an outer insulating sheath in surrounding relationship to said inner insulating sheath, and metallic shielding comprising a drain wire between said inner and outer insulating sheaths, said connecting device comprising:

inner and outer metallic members, said outer metallic member comprising a cylindrical contact portion and said inner metallic member comprising a cylindrical contact portion coaxially disposed in said outer metallic member, a cable attaching portion integral with, and extending from, said outer metallic member at one end thereof, said cable attaching portion comprising first and second ferrule sections, said first ferrule section being proximate to said outer metallic member and said second ferrule section being remote from said outer metallic member, said one end of said cable being selectively stripped to expose said center conductor at said one end and to expose said drain wire and said inner insulating sheath adjacent to said one end, said inner conductor extending into said inner metallic member, said first ferrule section comprising a bight and sidewall, said first ferrule section being crimped to a circular configuration with one of said sidewalls having overlapping portions which overlap the other one of said sidewalls, said bight and said other sidewall being in constrictive embracing relationship to said inner insulating sheath, said drain wire being crimped between said other sidewall and said overlapping portions of said one sidewall, and said second ferrule section being crimped onto said outer insulating sheath whereby, said center conductor is electrically connected to said inner metallic member, said drain wire is electrically connected to said outer metallic member, and said outer insulating sheath is mechanically connected to said outer metallic member with a crimped connection which is independent of said drain wire connection to said outer metallic member.