Source: http://www.google.com/patents/US4537459?dq=6,192,476
Timestamp: 2014-12-27 06:37:39
Document Index: 82739275

Matched Legal Cases: ['arts 30', 'arts 30', 'art 32', 'arts 30', 'art 30', 'art 32', 'art 30', 'art 32']

Patent US4537459 - Jack for EMI/RFI shield terminating modular plug connector - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA jack for a modular plug connector which terminates an EMI/RFI shield surrounding the conductors of a cord, as well as the cord conductors themselves as is conventional, by which the electromagnetic and radio frequency signals radiated from the conductors and carried through the shield are grounded....http://www.google.com/patents/US4537459?utm_source=gb-gplus-sharePatent US4537459 - Jack for EMI/RFI shield terminating modular plug connectorAdvanced Patent SearchPublication numberUS4537459 APublication typeGrantApplication numberUS 06/570,806Publication dateAug 27, 1985Filing dateJan 16, 1984Priority dateJan 16, 1984Fee statusPaidPublication number06570806, 570806, US 4537459 A, US 4537459A, US-A-4537459, US4537459 A, US4537459AInventorsRobert J. Brennan, Terrence Meighen, Walter M. PhillipsonOriginal AssigneeStewart Stamping CorporationExport CitationBiBTeX, EndNote, RefManPatent Citations (4), Referenced by (7), Classifications (13), Legal Events (13) External Links: USPTO, USPTO Assignment, EspacenetJack for EMI/RFI shield terminating modular plug connectorUS 4537459 AAbstract A jack for a modular plug connector which terminates an EMI/RFI shield surrounding the conductors of a cord, as well as the cord conductors themselves as is conventional, by which the electromagnetic and radio frequency signals radiated from the conductors and carried through the shield are grounded. The jack includes front and back parts connected to each other to define a rearwardly opening receptacle for a conventional multi-contact modular insert and a communicating forwardly opening receptacle for the modular plug connector. The jack is provided with a grounded contact which, upon insertion of the modular plug connector, electrically engages a shield terminating contact which forms a part of the modular plug connector to thereby electrically couple the grounded jack contact with the EMI/RFI shield surrounding the cord conductors. The front part and possibly the back part of the jack may be formed of a plastic material which provides good EMI/RFI shielding to control radiation of high frequency signals from within the jack as well as to suitably attenuate any high frequency signals radiated from equipment external to the jack passing into the connector receptacle.
In assembly, the front and back parts 30 and 32 are connected to each other with the grounded jack contact 38 pre-positioned so as to present a contact portion in the receptacle 66 for the modular plug connector and in such a manner that when the connector is fully inserted, the head 14a of the shield terminating contact pin 14 engages the contact portion of the grounded jack contact 38 at a location disposed substantially centrally within the front portion 66a of the receptacle 66. In the illustrated embodiment, the jack contact 38 comprises a leaf-spring type contact having a first straight portion 166 one end of which is connected to the ground conductor 40 and in which an offset protuberance 166a is formed, a short right angle portion 168, and a terminal contact portion 170 whose major length extends at an angle somewhat greater than 90� from the right angle portion 168. The free end 172 of contact portion 170 is bent inwardly to provide a camming surface as described below. Prior to connecting the front and back parts 30 and 32, the jack contact 38 is positioned with the straight contact portion 166 contiguous with the inner surface of guide groove 134 of back part 32 and so that the right angle portion 168 extends into and through the slot 149 as best seen in FIG. 4. The front and back parts 30 and 32 are then assembled to each other by introducing the guide members 104 and 106 into the guide grooves 134 and 136 respectively whereupon the front and back parts are urged towards each other. The latching members 100 and 102 are thereby received within respective latching channels 138 and 140 while the latching member 144 is introduced into the passage 92. When the rear edge surface 71 of the front part 30 becomes contiguous with the front edge surface 19 of the back part 32, the barbs 100a and 102a of the latching members 100 snap into engagement with the detent shoulders 142 while the upwardly extending barb 146 of latching member 144 snaps into engagement with the detent shoulder 98 whereby the front and back parts become locked to each other. The terminal contact portion 170 of the grounded jack contact 38 becomes positioned within the channel defined by the channel 116 in the front part 30 and the slot 149 in the back part 32 and, as seen in FIG. 4, the jack contact 38 is shaped so that the outer contact surface of the contact portion 170 is substantially coplanar with the plane of the side wall 68 at a region substantially centrally disposed in the front portion 66a of the connector receiving receptacle 66. The jack contact 38 is firmly held in place by the inner surface of the notch 154 of guide member 104 and the inner surface of the guide channel 134, the protuberance 166a being held in compression. The right angle portion 168 extends through the space defined between the rearwardly facing surface 156 of portion 159 and the forwardly facing surface 158 of slot 149.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS4224485 *Oct 16, 1978Sep 23, 1980Bell Telephone Laboratories, IncorporatedTelephone jackUS4239316 *May 3, 1978Dec 16, 1980Bunker Ramo CorporationElectrical connectors and assemblies thereforUS4424403 *Apr 29, 1981Jan 3, 1984Virginia Patent Development CorporationCable assembly having shielded conductor and method and apparatus for terminating sameUS4457575 *Sep 21, 1982Jul 3, 1984Amp IncorporatedElectrical connector having improved shielding and keying systems* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS4641901 *May 21, 1984Feb 10, 1987Stewart Stamping Corp.Printed circuit board jack for modular plug connector terminated cordUS4653837 *Sep 28, 1984Mar 31, 1987Stewart Stamping Corp.Jack and connectorUS4732568 *Nov 24, 1986Mar 22, 1988Virginia Plastics CompanyElectrical connector with integral ground strap for shielded cableUS5775946 *Aug 23, 1996Jul 7, 1998Amphenol CorporationShielded multi-port connector and method of assemblyUS6031909 *Mar 19, 1998Feb 29, 2000Lucent Technologies Inc.Modular jack housingEP0318180A1 *Nov 9, 1988May 31, 1989Labinal Components And Systems, Inc.Electrical connector high current surge protectionWO1993004513A1 *Aug 21, 1992Mar 4, 1993Mod Tap W CorpShield continuity contacts for electrical connectors* Cited by examinerClassifications U.S. Classification439/607.02, 439/927, 439/607.43International ClassificationH01R24/62, H01R13/6592, H01R13/6583, H01R13/652Cooperative ClassificationY10S439/927, H01R24/62, H01R13/652, H01R13/6583, H01R13/6592European ClassificationH01R13/658Legal EventsDateCodeEventDescriptionMar 5, 2001ASAssignmentOwner name: BANK ONE, NA, AS ADMINISTRATIVE AGENT, ILLINOISFree format text: SECURITY AGREEMENT;ASSIGNOR:INSILCO TECHNOLOGIES, INC.;REEL/FRAME:011566/0659Effective date: 20000825Free format text: SECURITY INTEREST;ASSIGNOR:SIGNAL TRANSFORMER CO., INC., STEWART STAMPING CORPORATION, INSILCO HEALTHCARE MANAGEMENT COMPANY, STEWART CONNECTOR SYSTEMS, INC., & EYELETS FOR INDUSTRY, INC., PRECISION CABLE MANUFACTURING CORPORATION, INSILCO INTERNATIONAL, EFI METAL FORMING, INC. & SIGNAL CARIBE, INC.;REEL/FRAME:011837/0244Free format text: SECURITY INTEREST;ASSIGNORS:SIGNAL TRANSFORMER CO., INC.;STEWART STAMPING CORPORATION;INSILCO HEALTHCARE MANAGEMENT COMPANY;AND OTHERS;REEL/FRAME:011566/0603Owner name: BANK ONE, NA, AS ADMINISTRATIVE AGENT ONE BANK ONEFree format text: SECURITY INTEREST;ASSIGNORS:SIGNAL TRANSFORMER CO., INC. /AR;REEL/FRAME:011566/0603Free format text: SECURITY AGREEMENT;ASSIGNOR:INSILCO TECHNOLOGIES, INC. /AR;REEL/FRAME:011566/0659Free format text: SECURITY INTEREST;ASSIGNOR:SIGNAL TRANSFORMER CO., INC., STEWART STAMPING CORPORATION, INSILCO HEALTHCARE MANAGEMENT COMPANY, STEWART CONNECTOR SYSTEMS, INC., & EYELETS FOR INDUSTRY, INC., PRECISION CABLE MANUFACTURING CORP;REEL/FRAME:011837/0244Feb 12, 1999ASAssignmentOwner name: FIRST NATIONAL BANK OF CHICAGO, THE, ILLINOISFree format text: ASSIGNMENT OF SECURITY INTEREST;ASSIGNOR:CITICORP USA, INC.;REEL/FRAME:009748/0537Effective date: 19981124Feb 4, 1998ASAssignmentOwner name: CITICORP USA, INC., NEW YORKFree format text: NOTICE OF ADMENDMENT TO SUBSIDIARY PATENT;ASSIGNOR:STEWART CONNECTOR SYSTEMS, INC.;REEL/FRAME:008930/0910Effective date: 19970703Feb 27, 1997FPAYFee paymentYear of fee payment: 12Mar 27, 1995ASAssignmentOwner name: STEWART CONNECTOR SYSTEMS, INC., PENNSYLVANIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STEWART STAMPING CORPORATION;REEL/FRAME:007417/0119Effective date: 19950309Dec 19, 1994ASAssignmentOwner name: CITICORP USA, INC., NEW YORKFree format text: SECURITY INTEREST;ASSIGNOR:STEWART STAMPING CORPORATION;REEL/FRAME:007244/0082Effective date: 19941121Dec 15, 1994ASAssignmentOwner name: STEWART STAMPING CORPORATION, NEW YORKFree format text: RELEASE AND REASSIGNMENT;ASSIGNOR:BANKERS TRUST COMPANY;REEL/FRAME:007251/0327Effective date: 19941121May 29, 1993ASAssignmentOwner name: BANKERS TRUST COMPANY, NEW YORKFree format text: SECURITY INTEREST;ASSIGNOR:STEWART STAMPING CORPORATION;REEL/FRAME:006535/0299Effective date: 19930330Feb 25, 1993FPAYFee paymentYear of fee payment: 8Jan 5, 1989ASAssignmentOwner name: BANKERS TRUST COMPANY, A NY BANKING CORP.Free format text: SECURITY INTEREST;ASSIGNOR:STEWART STAMPING CORPORATION, A DE CORP.;REEL/FRAME:004997/0714Owner name: STEWART STAMPING CORPORATION, A DE CORP.Free format text: LICENSE;ASSIGNOR:WELLS FARGO BANK, N.A.;REEL/FRAME:005003/0225Effective date: 19881212Owner name: WELLS FARGO BANK, N.A.Free format text: SECURITY INTEREST;ASSIGNOR:STEWART STAMPING CORPORATION, A DE CORP.;REEL/FRAME:005003/0197Oct 14, 1988FPAYFee paymentYear of fee payment: 4Mar 2, 1987ASAssignmentOwner name: STEWART STAMPING CORPORATION, A CORP. OF DE.Free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNOR:STEWART STAMPING CORPORATION, A CORP OF CT.;REEL/FRAME:004691/0860Effective date: 19870114Jan 16, 1984ASAssignmentOwner name: STEWART STAMPING CORPORATION, 630 CENTRAL PARK AVEFree format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:BRENNAN, ROBERT J.;MEIGHEN, TERRENCE;PHILLIPSON, WALTERM.;REEL/FRAME:004219/0637;SIGNING DATES FROMRotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google