US3331917A - Coaxial and shielded in-line termination - Google Patents

Coaxial and shielded in-line termination Download PDF

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Publication number
US3331917A
US3331917A US438493A US43849365A US3331917A US 3331917 A US3331917 A US 3331917A US 438493 A US438493 A US 438493A US 43849365 A US43849365 A US 43849365A US 3331917 A US3331917 A US 3331917A
Authority
US
United States
Prior art keywords
cable
sleeve
ring
end portion
outer conductor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US438493A
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English (en)
Inventor
Michael F O'keefe
Armand S Apa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TE Connectivity Corp
Original Assignee
AMP Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AMP Inc filed Critical AMP Inc
Priority to US438493A priority Critical patent/US3331917A/en
Priority to GB7843/66A priority patent/GB1066560A/en
Priority to NL6602826A priority patent/NL6602826A/xx
Priority to DE19661565967 priority patent/DE1565967A1/de
Priority to ES0323996A priority patent/ES323996A1/es
Application granted granted Critical
Publication of US3331917A publication Critical patent/US3331917A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0518—Connection to outer conductor by crimping or by crimping ferrule
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0503—Connection between two cable ends

Definitions

  • a coaxial or shielded cable terminal which includes an in-line termination of inner and outer cable conductors through a structure including an inner body of insulating material containing a spring contact member for cable inner conductors and having positioned outwardly on the ends thereof rigid deformation resilient rings against which the cable outer conductor is forced by a thin malleable outer ferrule which extends along the length of the body.
  • the inner contact insulating body and deformation resistant rings are covered over by a sleeve of insulating material made to extend out over the cable and an outer protective sheath thereof and ferrules are provided on each end of theouter sleeve to be crimped inwardly to seal all of the conductive metallic parts against the environment of use.
  • This invention relates to an assembly of conductive and insulating elements adapted to be crimped or otherwise deformed to provide a sealed splice or termination of coaxial and shielded cable.
  • a further object is to provide an in-line termination of coaxial and shielded cable which effectively seals the conductors terminated against the environment of use, particularly moisture.
  • It is still another object to provide an in-line splice for mechanically and electrically joining the ends of coaxial or shielded cable in a manner to provide superior electrical characteristics and strength.
  • the foregoing objects are obtained through the invention in its application as a termination through the use of first and second ferrule members disposed respectively adjacent to the braid or cable outer conductor beneath and outside of an insulating sleeve which fits over the cable outer protective sheath.
  • the ferrule members are axially spaced apart and are of diameters differing by the insulating sleeve thickness.
  • the invention in its aspect as a splice includes the termination feature just described at either end of a continuous structure having a center dielectric insert carrying a double-ended Spring receptacle into which the cable center conductors are forced for the purposes of effecting an electrical union therebetween.
  • the ferrule members adapted to terminate the braid are common and in all embodiments the ferrule members are of relatively thin metallic material so as to be readily deformable.
  • FIGURE 1 is a perspective of the invention unit in the form of an in-line splice prior to insertion of cables therein and deformation;
  • FIGURE 2 is a longitudinal section of an in-line splice embodiment of the invention having one end terminated to coaxial cable and the other end undeformed with the cable prepared and in position for insertion therein;
  • FIGURE 3 is an exploded View of the in-line splice embodiment of the invention showing separately the various parts thereof prior to assembly staking or final deformation.
  • the drawing figures are enlarged about four times from the actual size of an in-llne splice adapted for use with type RG-59/U shielded cable.
  • the cable shown in FIGURE 2 includes a center conductor 2, a dielectric sheath 4, braid 6 and an outer protective sheath 8.
  • the in-line splice depicted as unit 10 is comprised of a plurality of elements mechanically held together to form essentially one-piece which may be sold, shipped and handled as such without requiring assembly of a number of loose pieces. To utilize the unit 10, one need only prepare the coaxial or shielded cable in a manner indicated to the left of FIGURE 2 and insert the prepared end of the cable within the assembly.
  • the cable will be frictionally held within the splice so that controlled deformation of the ferrule members may be accomplished to perfect termination of the cable.
  • the unit shown relates to a specific embodiment of the invention in the form of an in-line splice, but it is contemplated that as a part of the invention the termination performed on the outer end may be employed with a wide variety of constructions such as connectors, junctions and the like wherein the inner end would be replaced with a structure having threaded or bayonet-type fittings or a mounting flange.
  • the invention as contemplated then relates to both a terminal and a splice.
  • FIGURES l and 3 showing respectively, the assembly of the various elements and the elements prior to assembly.
  • an insulating and protecting sleeve 12 which in an actual unit was made of polyvinyl chloride tubing sufficiently soft to permit the unique crimping operation to be hereinafter described.
  • the sleeve 12 Prior to assembly of unit 10 the sleeve 12 is as shown in FIGURE 3, cylindrical along its length. After assembly the sleeve includes a pair of humps 12a axially spaced apart near but not at the ends of the sleeve.
  • a metallic sleeve 14 which is of a length to extend over a substantial portion of the length of 12.
  • the sleeve 14 after insertion with 12 is deformed at each end to provide a turned portion 14a, forming a slight flange ex tending radially outwardly and a rounded and smooth entry extending inwardly.
  • the sleeve is deformed circumferentially to form a ridge reducing the bore of 14 in the center thereof, indicated as 14b in FIGURE 2.
  • the sleeve 14 was made ofthin tin-plated copper suitably softened by annealing to permit deformation at the ends thereof for crimping purposes.
  • sleeve 14 serves both as a ferrule and as a splice strengthening member.
  • Sleeve 14 is positioned Within 12 in the manner indicated in FIGURE 1 and the end turned portions 1411 are dimensioned to deform the sleeve 14 outwardly to develop the humps 12a with the outward flange serving to lock the pieces together.
  • aninsert 16 of dielectric material which has a center cylindrical portion 16a relieved as at 16b to cooperate with the indentation formed by 145 and lock the insert within 14.
  • a further cylindrical portion 16c terminating in a flange portion 16d which is beveled on its outer surface and is perpendicular on its inner surface.
  • a shoulder 16f sloped inwardly and relieved as at 16g to guide the cable center conductor within the splice as it is inserted.
  • Extending fully through the insert between bores 16:: is a bore 16h adapted to receive a center contact member.
  • sleeve members 18 Over the outside of sleeve portions 16c are fitted sleeve members 18 which are axially forced thereon over the beveled outer surface of 16d.
  • the sleeve members 18 are of a length to nest between the transition surface of the insert and the inner end of 160 and the inner vertical surface of portion 16d in the manner shown in FIGURE 2.
  • the thickness and material characteristics of member 18 are such as resist deformation under crimping forces applied radially inwardly to the portions of 14 diposed over the sleeves 18.
  • the cable braid is guided thereby outside and over the surface of the sleeve 18 and within 14, the flaring at 14a assisting.
  • the serrations 18b extending around and over the outside of 18 are provided to contact the braid or outer conductor of the cable and operate during crimping to drive the braid material into the material of 12 to assure a good interface of clean metal in the Zone of termination.
  • insert 16 As shown in FIGURE 2 in position and in FIGURE 3 in perspective, as a one-piece contact member 20 which is sleeve-like in the center, with spring portions 20a formed at each end, around the center of 20- is a slight indentation 20b which operates to limit the insert of the cable center conductors.
  • the outside diameter of 20 relative to the bore 16h, is such that the contact is wedge-fitted within the insert to resist axial displacement.
  • Member 20 is made of conductive material having spring characteristics and the outer ends of the spring portion 20a are beveled as at 200 to facilitate entry of the cable center conductor.
  • a pair of ferrules 22 are provided which are of malleable material and of a thickness to permit the deformation indicated in FIGURE 2 at the right-hand side thereof.
  • the inner diameter of each is dimensioned to match the outer diameter of sleeve 12 in its relaxed state so that the ferrules 22 may be fitted thereover and positioned inwardly to a point of engagement with the humps 1211. Thereafter, the ferrules are locked on 12 by dimples 22a disposed at several points around the ferrule periphery which is just sufficient to hold the ferrules in place.
  • the cable is prepared as shown in FIGURE 2 and inserted within the end of assembly 10; the center conductor shown as 2 being positioned and forced within” the spring portions of the member 20, the dielectric shown as 4, fitting within the bore 16a of the insert and the braid or outer conductor 6 being guided out over 18 and under the outer portions of 14.
  • the preparation of the cable is such as to leave the outer insulating and protective sheath 8 continuous for a length so that as the cable is inserted the sheath extends well within 12 and fully under 22.
  • the insert with respect to dimension and dielectric constant may be based upon calculations to provide a substantially matched impedance along its length in the presence of conductive path diameter changes.
  • a terminal for coaxial or shielded cable of the type having an inner conductor surrounded by a dielectric sheath, an outer conductor and a protective sheath the combination comprising a centrally disposed body of dielectric material having a bore adapted to accommodate the insertion of the cable dielectric sheath and inner conductor, a contact member secured in said bore adapted to receive the cable inner conductor, an end portion of said body having an outer diameter slightly larger than that of the diameter of the cable outer conductor and less than the outer diameter of the said body adjacent said end portion with the outer end of said end portion being beveled inwardly to guide said outer conductor thereover during installation, a hard deformation resistant ring fitted over said end portion and aflixed thereto, said ring having an axial length slightly less than that of said end portion and a maximum outer diameter approximately equal to that of the end of said end portion and a thin malleable conductive sleeve member extending over said body, said end portion and said ring, the sleeve member
  • the terminal of claim 1 wherein there is included an outer insulating sleeve surrounding said conductive sleeve member and extending therealong and outwardly over the end thereof, said insulating sleeve having an inner diameter along its length approximating the outer diameter of said conductive sleeve member, a thin malleable ferrule positioned on said outer insulating sleeve on the portion thereof extending beyond said conductive sleeve member, said insulating sleeve having a thickness and material characteristics to permit deformation of said conductive sleeve member through said insulating sleeve and to be deformed into a sealing engagement with the dielectric sheath of said cable upon deformation of said ferrule positionedthereon.
  • a terminal for coaxial or shielded cable of the type having a center conductor surrounded by a dielectric sheath, an outer conductor and an outer protective sheath comprising a body of dielectric and insulating material including a first central bore, a contact member disposed in said bore adapted to receive the cable center conductor, a second bore in said body axially aligned with said first bore and of a larger diameter to accommodate and support the dielectric sheath of said cable to 'be inserted therein, the body portion surrounding said second bore being of a reduced wall thickness, a first metallic sleeve of rigid deformation resistant material disposed around and extending along the portion of said body overlying said second bore, a second metallic sleeve of thin malleable material secured to said body and extending over said body and over said first metallic sleeve, the interior of said second sleeve being spaced from said first sleeve by an amount sufficient to accommodate the insertion of the cable outer conductor, an

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
US438493A 1965-03-10 1965-03-10 Coaxial and shielded in-line termination Expired - Lifetime US3331917A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US438493A US3331917A (en) 1965-03-10 1965-03-10 Coaxial and shielded in-line termination
GB7843/66A GB1066560A (en) 1965-03-10 1966-02-23 Electrical splice connector for coaxial cables
NL6602826A NL6602826A (es) 1965-03-10 1966-03-04
DE19661565967 DE1565967A1 (de) 1965-03-10 1966-03-08 Spleissverbinder fuer Koaxialkabel
ES0323996A ES323996A1 (es) 1965-03-10 1966-03-09 Un dispositivo conectador de empalme electrico para conectar entre si dos cables coaxiles o armados.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US438493A US3331917A (en) 1965-03-10 1965-03-10 Coaxial and shielded in-line termination

Publications (1)

Publication Number Publication Date
US3331917A true US3331917A (en) 1967-07-18

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ID=23740856

Family Applications (1)

Application Number Title Priority Date Filing Date
US438493A Expired - Lifetime US3331917A (en) 1965-03-10 1965-03-10 Coaxial and shielded in-line termination

Country Status (5)

Country Link
US (1) US3331917A (es)
DE (1) DE1565967A1 (es)
ES (1) ES323996A1 (es)
GB (1) GB1066560A (es)
NL (1) NL6602826A (es)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2171214A1 (es) * 1972-02-08 1973-09-21 Philips Nv
US3828305A (en) * 1973-03-30 1974-08-06 Amp Inc Terminal connector and method of attaching same to coaxial cable
US3859455A (en) * 1972-02-08 1975-01-07 Philips Corp Connection of coaxial cable ends
US3871735A (en) * 1973-08-23 1975-03-18 Amp Inc Shielded high voltage connector
US4509816A (en) * 1983-08-31 1985-04-09 Wolfgang Freitag Plug connector for co-axial electrical cables
FR2572595A1 (fr) * 1984-10-31 1986-05-02 Radiall Ind Elements de connecteur coaxial du type a verrouillage et deverrouillage rapides
US4596434A (en) * 1983-01-21 1986-06-24 M/A-Com Omni Spectra, Inc. Solderless connectors for semi-rigid coaxial cable
US4712296A (en) * 1985-08-14 1987-12-15 Amp Incorporated Method of constructing a coaxial connector
US5217392A (en) * 1992-11-13 1993-06-08 The Whitaker Corporation Coaxial cable-to-cable splice connector
US20120312597A1 (en) * 2010-02-05 2012-12-13 Yazaki Corporation Swaging connection structure
US20130140054A1 (en) * 2010-08-24 2013-06-06 Yazaki Corporation Wire harness
US20170323706A1 (en) * 2016-05-04 2017-11-09 Md Elektronik Gmbh Cable having a pluggable connector
US10515745B2 (en) * 2016-12-06 2019-12-24 Sony Olympus Medical Solutions Inc. Medical coaxial connector, medical coaxial cable, and medical observation system
CN112367032A (zh) * 2020-10-28 2021-02-12 陈栋 一种防护组件
JP2021082427A (ja) * 2019-11-15 2021-05-27 矢崎総業株式会社 編組導体の連結具、及び、電線の接続構造

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8629638D0 (en) * 1986-12-11 1987-01-21 Ici Plc Cable connectors
GB2258090B (en) * 1991-07-18 1995-03-01 Northern Telecom Ltd Cable repair
CN108539443B (zh) * 2018-05-30 2024-02-20 上海友邦电气(集团)股份有限公司 一种穿墙式接线端子

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774810A (en) * 1951-08-21 1956-12-18 Aircraft Marine Prod Inc Electrical connector
US2904609A (en) * 1953-01-08 1959-09-15 Christiania Spigerverk Electrode installation for electric furnaces
US3147057A (en) * 1960-07-12 1964-09-01 Bendix Corp Coaxial connector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774810A (en) * 1951-08-21 1956-12-18 Aircraft Marine Prod Inc Electrical connector
US2904609A (en) * 1953-01-08 1959-09-15 Christiania Spigerverk Electrode installation for electric furnaces
US3147057A (en) * 1960-07-12 1964-09-01 Bendix Corp Coaxial connector

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2171214A1 (es) * 1972-02-08 1973-09-21 Philips Nv
US3859455A (en) * 1972-02-08 1975-01-07 Philips Corp Connection of coaxial cable ends
US3828305A (en) * 1973-03-30 1974-08-06 Amp Inc Terminal connector and method of attaching same to coaxial cable
US3871735A (en) * 1973-08-23 1975-03-18 Amp Inc Shielded high voltage connector
US4596434A (en) * 1983-01-21 1986-06-24 M/A-Com Omni Spectra, Inc. Solderless connectors for semi-rigid coaxial cable
US4509816A (en) * 1983-08-31 1985-04-09 Wolfgang Freitag Plug connector for co-axial electrical cables
FR2572595A1 (fr) * 1984-10-31 1986-05-02 Radiall Ind Elements de connecteur coaxial du type a verrouillage et deverrouillage rapides
US4712296A (en) * 1985-08-14 1987-12-15 Amp Incorporated Method of constructing a coaxial connector
US5217392A (en) * 1992-11-13 1993-06-08 The Whitaker Corporation Coaxial cable-to-cable splice connector
EP0597579A2 (en) * 1992-11-13 1994-05-18 The Whitaker Corporation Coaxial cable-to-cable splice connector
EP0597579A3 (en) * 1992-11-13 1995-10-04 Whitaker Corp Coaxial cable-to-cable splice connector.
US9112287B2 (en) * 2010-02-05 2015-08-18 Yazaki Corporation Swaging connection structure
US20120312597A1 (en) * 2010-02-05 2012-12-13 Yazaki Corporation Swaging connection structure
US20130140054A1 (en) * 2010-08-24 2013-06-06 Yazaki Corporation Wire harness
US9490613B2 (en) * 2010-08-24 2016-11-08 Yazaki Corporation Wire harness
US20170323706A1 (en) * 2016-05-04 2017-11-09 Md Elektronik Gmbh Cable having a pluggable connector
US10074462B2 (en) * 2016-05-04 2018-09-11 Md Elektronik Gmbh Cable having a pluggable connector
US10515745B2 (en) * 2016-12-06 2019-12-24 Sony Olympus Medical Solutions Inc. Medical coaxial connector, medical coaxial cable, and medical observation system
JP2021082427A (ja) * 2019-11-15 2021-05-27 矢崎総業株式会社 編組導体の連結具、及び、電線の接続構造
US11316287B2 (en) * 2019-11-15 2022-04-26 Yazaki Corporation Connection device and electric wire connection structure
JP7084372B2 (ja) 2019-11-15 2022-06-14 矢崎総業株式会社 編組導体の連結具、及び、電線の接続構造
CN112367032A (zh) * 2020-10-28 2021-02-12 陈栋 一种防护组件
CN112367032B (zh) * 2020-10-28 2021-08-06 陈栋 一种防护组件
US11227957B1 (en) 2020-10-28 2022-01-18 Dong Chen Protective component

Also Published As

Publication number Publication date
ES323996A1 (es) 1967-01-16
DE1565967A1 (de) 1970-07-02
NL6602826A (es) 1966-09-12
GB1066560A (en) 1967-04-26

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