US3915539A - Coaxial connectors - Google Patents
Coaxial connectors Download PDFInfo
- Publication number
- US3915539A US3915539A US474982A US47498274A US3915539A US 3915539 A US3915539 A US 3915539A US 474982 A US474982 A US 474982A US 47498274 A US47498274 A US 47498274A US 3915539 A US3915539 A US 3915539A
- Authority
- US
- United States
- Prior art keywords
- connector
- flange
- sleeve
- shell
- outer shell
- 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
Links
- 239000002184 metal Substances 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 239000004020 conductor Substances 0.000 claims abstract description 31
- 239000012811 non-conductive material Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 35
- 230000002265 prevention Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 230000013011 mating Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 241000237519 Bivalvia Species 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000282346 Meles meles Species 0.000 description 1
- JOCBASBOOFNAJA-UHFFFAOYSA-N N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid Chemical compound OCC(CO)(CO)NCCS(O)(=O)=O JOCBASBOOFNAJA-UHFFFAOYSA-N 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000020639 clam Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2103/00—Two poles
Definitions
- This invention relates to coaxial connectors.
- Coaxial connectors are ever more frequently being employed in modern communications applications, and much effort has been directed to the production of reliable connec: tors at minimum cost.
- conventional connectors are largely fabricated from conductive metals such as aluminium or brass and are therefore inherently expensive, since these starting materials are expensive and their processing (for example by machine turning) is also expensive.
- coaxial connectors have already been proposed in which the main body is made from a synthetic plastics material and a conductive path for the outer conductor of the cable is provided by a metallized coating on the main body or by a thin metal liner.
- the object of this invention is to provide a connector which overcomes the problem of corrosion.
- a coaxial connector comprising an outer shell terminating in a flange for attaching the connector to another connector, a contact element for the inner conductor of a coaxial cable supported by a dielectric body within the outer shell, the outer shell being formed from a moulded synthetic, non-conductive material and lined by a metal sleeve forming a conductive path for the outer conductor of the cable, the sleeve projecting slightly with respect to the end surface of the shell at the flange end, and sealing means providing a watertight seal for the interior of the connector except in the vicinity of the flange.
- the connector is attached to another connector by means of a flange and a sealing ring is compressed between the flange and the other connector around the projecting end of the metal sleeve.
- FIGURE of the accompanying drawing is a cross-section of one connector and part of a second connector attached thereto.
- the connector illustrated comprises a tubular body shell 10 which carries at one end a flange 12 which is provided with three fixing holes 14.
- the flange is rotatably mounted on the body by means of a snap ring 16.
- the other end of the shell 10 is externally threaded at 11 to receive a tubular back nut 18.
- the further end of the back nut 18 is directed inwards to form an abutment 20 which bears against a thrust ring 22 which in turn presses against a rubber sealing ring 24.
- An internal shoulder 19 of the back nut 18 bears on an internally threaded collar 26 and the ring 24 also bears on this collar. Rotation of the back nut 18 thus applies pressure to the internally threaded collar 26.
- the collar 26 is chosen to suit the external conductor of the cable to which the connector member is connected, which in this case is assumed to have an Edison thread on its outer surface. Spanner flats (not shown) can be provided on the outside of the body shell to assist the relative rotation of back nut and shell.
- a conducting metal sleeve 30 is provided within the shell 10 and is flanged at the end nearer the back nut 18.
- the flange 32 is clamped between the collar 26 and I the end surface of the shell 10.
- a sealing ring 28 is housed in a groove at the end. of the shell 10 between this shell and the flange 32.
- the other end 31 of the sleeve stands very slightly proud of the surface of the flange 14 to ensure a positive electrical connection at this point, by abutment with the corresponding sleeve 30 of a second connector.
- the sleeve 30 can be made by metal spinning or deep drawing.
- the connector member is attached to a coaxial cable as follows.
- the back nut 18 is placed over the end of the cable and suitable thrust and sealing rings 22 and 24 respectively are chosen with an internal diameter equal to the external diameter of the outer sheath of the cable, or of the bared outer conductor.
- the bared outer conductor of the cable is screwed into the threaded collar 26 until it protrudes from the further side, and the protruding portion is then turned outwards to form a flange.
- the back nut assembly is screwed on to the body shell 111) with the flange formed by the outer conductor bearing against the flange 32 on the sleeve 30 to provide a positive electrical connection between the outer conductor of the cable and the sleeve.
- the central conductor of the cable engages with an inner contact element 34 which is supported within the body member 10 by a dielectric disc 36.
- the engagement is by means of a push fit, but it could alternatively be provided for, in a manner known per se, by a self-tapping thread on the left-hand portion of the element 34, as seen in the FIGURE, there being a transverse bore through the right-hand portion of the element 34 to receive a tommy bar for screwing the contact element into the central conductor of the cable.
- the shell 10 may have an aperture (not shown) in its wall by means of which dry gas. can be introduced into the connector. The gas then circulates around an annular channel formed in the inner surface of the shell 10 and passes through a hole in the sleeve 30.
- the provision of the annular channel avoids the necessity of aligning the holes in the shell 10 and the sleeve 30.
- the largest components are the shell 10 and the back nut 18, and these are made of a synthetics plastics material, preferably glass-filled nyl-on. This has good ultraviolet resistance, especially if loaded by a suitable black pigment, good creep resistance and low waterabsorption characteristics, and the shell 10 and nut 18 can be formed by injection moulding.
- the flange 12 is formed of the same material, and the collars 22 and 26 could be also.
- the use of plastics members for the major components means that the connector can be produced relatively cheaply.
- the interior of the connector is completely sealed against the ingress of rnois ture.
- the cable entry is sealed by the rubber ring 24 compressed about the cable sheath, or about the bared outer conductor as may be preferable when the external diameter of the outer sheath varies within wide tolerances.
- This seal we have found it advantag'e'ous to taper the outside of the ring 24, the narrower end being to the left in the drawing.
- the ring, in place on the cable, is then forced into the back nut after the manner of a rubber bung.
- the joint between the shell 10 and the back nut 18 is sealed by the ring 28.
- the only other place where moisture could reach the metal parts of the connector is at the projecting end 31 of the sleeve 30 at the leading end of the connector.
- the leading end of the shell 10 has an annular groove 36 surrounding the sleeve end 31. This groove faces the corresponding groove 36 in the shell 10 of the second connector and an O-ring 38 is housed between these grooves.
- connection between the contact element 34 and the corresponding element of the second connector is effected by a metal pin 40.
- the major components can be used with a variety of different cable types, thus enabling the advantages of mass production to be further realised.
- the rings 22 and 24 and collar 26 can be replaced by any suitable fixing appropriate to the cable to be used with the connector.
- a plain collar can be used as 0pposed to a threaded one, or two clamping members having opposed frusto-conical surfaces can be employed.
- axial thrust generated by tightening the back nut 18 serves to clamp the outer conductor and form the seal around the conductor itself or the sheath thereof.
- O-ring seals have been used in the past between the flanges of connectors. Although these have prevented water getting inside the connector they have not served to seal all metal parts inside the connector; in fact the O-rings have been between metal flanges.
- the known seals have not therefore helped to prevent corrosion between dissimilar metal parts which are inevitably present because of the use of cables with conductors of copper or aluminium.
- a pair of coaxial cable connectors connected together each comprising an outer shell terminating in a flange whereby the connector is attached to the other connector, a dielectric body within the outer shell, a contact element for the inner conductor of a coaxial cable supported by the dielectric body, the outer shell being formed from a moulded synthetic, nonconductive material, a metal sleeve lining the interior of the outer shell and forming a conductive path for the outer cable conductor, the sleeve projecting slightly with respect to the end surface of the shell at the flange end, the sleeve being itself unflanged at its projecting end, and sealing means at the end of the shell remote from the flange, said sealing means of the respective connectors together providing a watertight seal for the interior of the connector and preventing access of moisture to the metal sleeves except in the vicinity of the flange, said projecting ends of the two metal sleeves of the respective connectors abutting each other and providing electrical continuity through the sleeves, and a sealing ring clamp
- a coaxial connector for a coaxial cable comprising an outer shell terminating in a flange for attaching the connector to another connector with interposition of a sealing ring, a dielectric body within the outer shell, a contact element for the inner conductor of a coaxial cable supported by the dielectric body, the outer shell being formed from a moulded synthetic, nonconductive material, a self-supporting metal sleeve of solid metal lining the interior of the outer shell and forming a conductive path for the outer conductor of the cable, the sleeve projecting axially slightly with respect to the end surface of the shell at the flange end for endwise abutment under pressure with the sleeve of a like connector, the projecting end of said sleeve being supported axially solely by said sleeve itself and being capable of withstanding a compressive load created by said endwise abutment under pressure, and sealing means at the end of the shell remote from the flange providing a watertight seal for the interior of
- a coaxial connector for a coaxial cable comprising an outer shell terminating in a flange for attaching the connector to another connector with interposition of a sealing ring, a dielectric body within the outer shell, a contact element for the inner conductor of a coaxial cable supported by the dielectric body, the outer shell being formed from a moulded synthetic, nonconductive material, a metal sleeve lining the interior of the outer shell and forming a conductive path for the outer conductor of the cable, the sleeve projecting slightly with respect to the end surface of the shell at the flange end for endwise abutment with the sleeve of a like connector, and sealing means providing a watertight seal for the interior of the connector and preventing the access of moisture to the metal sleeve, except in the vicinity of the flange, where a similar seal is feasible upon attachment of the flange to another connector,
- said sealing means comprising a back nut threaded on the end of the shell remote from the flange, and sealing rings within the back nut, the back nut being adapted to compress the sealing rings around the cable, the end of the metal sleeve being flared out to overlay the end surface of the shell remote from the flange and a sealing ring being interposed between the flared out part of the sleeve and the shell.
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1610671*[A GB1348806A (en) | 1971-05-20 | 1971-05-20 | Coaxial connectors |
FR7217803A FR2138738B3 (fr) | 1971-05-20 | 1972-05-18 | |
AU42533/72A AU468327B2 (en) | 1971-05-20 | 1972-05-19 | Coaxial connectors |
CA142,686A CA970856A (en) | 1971-05-20 | 1972-05-19 | Coaxial connectors |
US474982A US3915539A (en) | 1971-05-20 | 1974-05-31 | Coaxial connectors |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1610671 | 1971-05-20 | ||
US25415172A | 1972-05-17 | 1972-05-17 | |
US474982A US3915539A (en) | 1971-05-20 | 1974-05-31 | Coaxial connectors |
Publications (1)
Publication Number | Publication Date |
---|---|
US3915539A true US3915539A (en) | 1975-10-28 |
Family
ID=27257341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US474982A Expired - Lifetime US3915539A (en) | 1971-05-20 | 1974-05-31 | Coaxial connectors |
Country Status (5)
Country | Link |
---|---|
US (1) | US3915539A (fr) |
AU (1) | AU468327B2 (fr) |
CA (1) | CA970856A (fr) |
FR (1) | FR2138738B3 (fr) |
GB (1) | GB1348806A (fr) |
Cited By (102)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4334730A (en) * | 1979-11-26 | 1982-06-15 | Bunker Ramo Corporation | Insulated from ground bulkhead adapter |
US4687272A (en) * | 1985-06-25 | 1987-08-18 | Georg Spinner | Device for pressure sealed connection of the outer conductor of a coaxial line |
US4836801A (en) * | 1987-01-29 | 1989-06-06 | Lucas Weinschel, Inc. | Multiple use electrical connector having planar exposed surface |
US5021001A (en) * | 1987-01-29 | 1991-06-04 | Lucas Weinschel Inc. | Multiple use electrical connector having planar exposed surface |
US6153830A (en) * | 1997-08-02 | 2000-11-28 | John Mezzalingua Associates, Inc. | Connector and method of operation |
USD436076S1 (en) | 2000-04-28 | 2001-01-09 | John Mezzalingua Associates, Inc. | Open compression-type coaxial cable connector |
USD437826S1 (en) | 2000-04-28 | 2001-02-20 | John Mezzalingua Associates, Inc. | Closed compression-type coaxial cable connector |
USD440539S1 (en) | 1997-08-02 | 2001-04-17 | Noah P. Montena | Closed compression-type coaxial cable connector |
USD458904S1 (en) | 2001-10-10 | 2002-06-18 | John Mezzalingua Associates, Inc. | Co-axial cable connector |
USD461166S1 (en) | 2001-09-28 | 2002-08-06 | John Mezzalingua Associates, Inc. | Co-axial cable connector |
USD461778S1 (en) | 2001-09-28 | 2002-08-20 | John Mezzalingua Associates, Inc. | Co-axial cable connector |
USD462058S1 (en) | 2001-09-28 | 2002-08-27 | John Mezzalingua Associates, Inc. | Co-axial cable connector |
USD462327S1 (en) | 2001-09-28 | 2002-09-03 | John Mezzalingua Associates, Inc. | Co-axial cable connector |
USD468696S1 (en) | 2001-09-28 | 2003-01-14 | John Mezzalingua Associates, Inc. | Co-axial cable connector |
USD475975S1 (en) | 2001-10-17 | 2003-06-17 | John Mezzalingua Associates, Inc. | Co-axial cable connector |
US6729898B1 (en) * | 2002-11-29 | 2004-05-04 | Hon Hai Precision Ind. Co., Ltd. | Permanently connected electrical connector assembly |
US6808415B1 (en) | 2004-01-26 | 2004-10-26 | John Mezzalingua Associates, Inc. | Clamping and sealing mechanism with multiple rings for cable connector |
US20050170692A1 (en) * | 2004-02-04 | 2005-08-04 | Noal Montena | Compression connector with integral coupler |
US20050181652A1 (en) * | 2004-02-18 | 2005-08-18 | Noah Montena | Cable connector with elastomeric band |
US7063565B2 (en) | 2004-05-14 | 2006-06-20 | Thomas & Betts International, Inc. | Coaxial cable connector |
US7192308B2 (en) | 2000-05-10 | 2007-03-20 | Thomas & Betts International, Inc. | Coaxial connector having detachable locking sleeve |
US7207820B1 (en) | 2006-02-03 | 2007-04-24 | John Mezzalingua Associates, Inc. | Connecting assembly for a cable and method of connecting a cable |
US7241172B2 (en) | 2004-04-16 | 2007-07-10 | Thomas & Betts International Inc. | Coaxial cable connector |
US7288002B2 (en) | 2005-10-19 | 2007-10-30 | Thomas & Betts International, Inc. | Coaxial cable connector with self-gripping and self-sealing features |
US7309255B2 (en) | 2005-03-11 | 2007-12-18 | Thomas & Betts International, Inc. | Coaxial connector with a cable gripping feature |
US7329149B2 (en) | 2004-01-26 | 2008-02-12 | John Mezzalingua Associates, Inc. | Clamping and sealing mechanism with multiple rings for cable connector |
US7347729B2 (en) | 2005-10-20 | 2008-03-25 | Thomas & Betts International, Inc. | Prepless coaxial cable connector |
US7354307B2 (en) | 2005-06-27 | 2008-04-08 | Pro Brand International, Inc. | End connector for coaxial cable |
US7455549B2 (en) | 2005-08-23 | 2008-11-25 | Thomas & Betts International, Inc. | Coaxial cable connector with friction-fit sleeve |
US20090176396A1 (en) * | 2004-11-24 | 2009-07-09 | John Mezzalingua Associates Inc. | Connector having conductive member and method of use thereof |
US7566236B2 (en) | 2007-06-14 | 2009-07-28 | Thomas & Betts International, Inc. | Constant force coaxial cable connector |
US7588460B2 (en) | 2007-04-17 | 2009-09-15 | Thomas & Betts International, Inc. | Coaxial cable connector with gripping ferrule |
US7632143B1 (en) | 2008-11-24 | 2009-12-15 | Andrew Llc | Connector with positive stop and compressible ring for coaxial cable and associated methods |
US7635283B1 (en) | 2008-11-24 | 2009-12-22 | Andrew Llc | Connector with retaining ring for coaxial cable and associated methods |
US20090325420A1 (en) * | 2008-06-30 | 2009-12-31 | Commscope, Inc. Of North Carolina | Coupling nut with cable jacket retention |
US20100126011A1 (en) * | 2008-11-24 | 2010-05-27 | Andrew, Llc, State/Country Of Incorporation: North Carolina | Flaring coaxial cable end preparation tool and associated methods |
US20100130060A1 (en) * | 2008-11-24 | 2010-05-27 | Andrew, Llc | Connector including compressible ring for clamping a conductor of a coaxial cable and associated methods |
US20100190377A1 (en) * | 2009-01-28 | 2010-07-29 | Andrew Llc, State/Country Of Incorporation: Delaware | Connector including flexible fingers and associated methods |
US7785144B1 (en) | 2008-11-24 | 2010-08-31 | Andrew Llc | Connector with positive stop for coaxial cable and associated methods |
US7794275B2 (en) | 2007-05-01 | 2010-09-14 | Thomas & Betts International, Inc. | Coaxial cable connector with inner sleeve ring |
US20100255721A1 (en) * | 2009-04-01 | 2010-10-07 | John Mezzalingua Associates, Inc. | Coaxial cable connector with improved physical and rf sealing |
US20100297871A1 (en) * | 2009-05-19 | 2010-11-25 | John Mezzalingua Associates, Inc. | Click-Tight Coaxial Cable Continuity Connector |
US20100297875A1 (en) * | 2009-05-22 | 2010-11-25 | John Mezzalingua Associates, Inc. | Coaxial cable connector having electrical continuity member |
US20110021072A1 (en) * | 2009-04-02 | 2011-01-27 | John Mezzalingua Associates, Inc. | Coaxial cable continuity connector |
US7934954B1 (en) | 2010-04-02 | 2011-05-03 | John Mezzalingua Associates, Inc. | Coaxial cable compression connectors |
US20110230091A1 (en) * | 2004-11-24 | 2011-09-22 | John Mezzalingua Associates, Inc. | Connector having a conductively coated member and method of use thereof |
US20110230089A1 (en) * | 2009-05-22 | 2011-09-22 | John Mezzalingua Associates, Inc. | Coaxial cable connector having electrical continuity member |
US8062063B2 (en) | 2008-09-30 | 2011-11-22 | Belden Inc. | Cable connector having a biasing element |
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Also Published As
Publication number | Publication date |
---|---|
AU468327B2 (en) | 1976-01-08 |
GB1348806A (en) | 1974-03-27 |
CA970856A (en) | 1975-07-08 |
AU4253372A (en) | 1973-11-22 |
FR2138738A1 (fr) | 1973-01-05 |
FR2138738B3 (fr) | 1975-08-01 |
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Owner name: CSA LIMITED Free format text: CHANGE OF NAME;ASSIGNOR:C & S ANTENNAS LIMITED;REEL/FRAME:005529/0828 Effective date: 19860225 |