Stewart Stamping Corp.

Stewart Connector Systems, Inc.

Sentinel Holding, Inc.

Robert J Brennan

Terrence Meighen

Walter M Phillipson

Walter M Philippson

Peter K Townsend

Justin S Wagner

David Hatch

Don McClune

Randy Schwartz

Ted R Meckley

Don Mcclune

Modular plugs and jacks connect data signal transmission cables to computer components are provided with cross-talk reducing members surrounding or between parallel or near parallel sections of conductors in the plugs and jacks. Each cross-talk reducing member includes a dielectric body surrounding an irregular three dimensional conductive lattice made of a plurality of straight conductive carbon fiber rods. The lattice reduces cross-talk between signal conductors in the plugs and jacks.

High speed modular connector

A modular jack connector mounted on a main printed circuit board and having a receptacle into which a modular plug of an electronic component is inserted. The connector includes a housing, a first set of contacts arranged in the housing each adapted to engage one of the contacts of the plug, a second set of contacts at least partially arranged in the housing and adapted to engaging the main printed circuit board, contact coupling circuit means for electrically coupling the first and second sets of contacts, a capacitor for providing impedance to high frequency noise and interference and a metallic shield at least partially surrounding the housing and connected to a grounding region on the main printed circuit board. In one embodiment, the capacitor is a flexible laminate assembly including first and second conductive sheet members and an intermediate insulative material. Further, the capacitor has a plurality of folded pleats including a first pleat arranged at one end of the laminate assembly and a second pleat arranged at an opposite end of the laminate assembly. The first conductive sheet member is electrically coupled at the first pleat to the contact coupling circuit means, and the second conductive sheet member is electrically coupled at the second pleat to the metallic shield to thereby ground the first set of contacts through the capacitor. The contact coupling circuit means may include toroidal coil pairs which function separately as either a differential mode filter or a common mode filter.

Modular jack connector with a flexible laminate capacitor mounted on a

A plug and jack connector for multi-conductor cable is provided with shielding to attenuate EMI/RFI radiation passing into and out from the jack and/or plug and an arrangement for grounding electrostatic charge carried on the cable shield. The jack is designed for insertion into a printed circuit board and includes a front housing part formed of electrically conductive material, an insulative rear housing part and a plurality of contacts having leads which are totally enclosed within the housing. The front housing part is the shielding member of the jack and is adapted to be grounded, such as by mounting on a chassis. The plug is of modular construction. Shield apparatus surrounds the plug to provide interference attenuation and extends into a cable shield terminating portion of the plug cavity to electrically engage a conductive ferrule applied around the cable which engages the cable shield to provide a path for grounding the cable shield. The shield apparatus of the plug is adapted to be electrically coupled to the front housing part of the jack to provide a path for grounding electrostatic charge in the cable shield.

Shielded plug and jack connector

Shielded plug jack connector

A jack adapted for connection to a printed circuit board or the like for a modular plug connector having a cord shield terminating contact includes a housing formed of plurality of jack parts adapted to interfit with each other to define an elongated receptacle for receiving the connector. One of the jack parts constitutes a grounding and shielding part formed of electrically conductive material and having top, bottom and side walls defining a closed, sleeve-like member. Each of the walls has a longitudinally extending inner surface at least a substantial portion of which bounds the plug receptacle so that a substantial portion of the receptacle is bounded on all of its sides by the electrically conductive material of the grounding and shielding part. The top, bottom and side walls of the grounding and shielding parts substantially surround the plug receiving receptacle on all of its sides substantially over its length. A modular plug connector adapted for insertion into the receptacle of the jack includes a housing which is surrounded by a conductive collar which terminates the cord shield through the side of the connector housing. The conductive collar is adapted to engage the inner surfaces of the grounding and shielding part of the jack which itself is grounded to thereby ground the shield.

Jack and connector

A jack adapted for connection to a printed circuit board or the like for a modular plug connector having a cord shield terminating contact includes a housing formed of plurality of jack parts adapted to interfit with each other to define an elongated receptacle for receiving the connector. One of the jack parts constitutes a grounding ad shielding part formed of electrically conductive material and having top, bottom and side walls defining a closed, sleeve-like member. Each of the walls has a longitudinally extending inner surface at least a substantial portion of which bounds the plug receptacle so that a substantial portion of the receptacle is bounded on all of its sides by the electrically conductive material of the grounding and shielding part. The top, bottom and side walls of the grounding and shielding parts substantially surround the plug receiving receptacle on all of its sides substantially over its length. A modular plug connector adapted for insertion into the receptacle of the jack includes a housing which is surrounded by a conductive collar which terminates the cord shield through the side of the connector housing. The conductive collar is adapted to engage the inner surfaces of the grounding and shielding part of the jack which itself is grounded to thereby ground the shield.

A jack for modular plug connectors designed for connection to a printed circuit board includes a housing formed of three parts which when interfitted define a receptacle for receiving a modular plug connector which terminates a multi-conductor cord. A plurality of jack contacts are held through the interfitting relationship of the various housing parts in a manner such that the jack contacts are entirely enclosed within the housing except for the projecting portions thereof which are adapted to be inserted into the printed circuit board. The plug receiving receptacle is partially defined by a surface adapted to provide a backing support for the jack contact portions engaged by the contact terminals of the modular plug connector. According to one embodiment, one of the jack housing parts which substantially surrounds the longitudinal extent of the modular plug connector when the latter is inserted into the plug receiving cavity is formed of a material which is electrically conductive and which provides good electromagnetic and radio frequency radiation shielding. In use, a cord shield terminating contact of the modular plug connector may contact one or both of the conductive housing part and a grounded jack contact to ground any electrostatic charge in the cord shield to prevent electrical arcing.

Printed circuit board jack for modular plug connector terminated cord

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.

Jack for EMI/RFI shield terminating modular plug connector

A modular plug connector is provided with a device for terminating the shielding of a cord to prevent or at least substantially reduce the radiation of electromagnetic and radio frequency interference from the region of the connector, such as when the cord is used in the transmission of high frequency digital-based data. The device also advantageously provides for the isolation and grounding of electrostatic discharge. The shield terminating device in one embodiment is constituted by a contact passing through the housing of the modular plug connector into the cord-receiving cavity of the connector housing so as to electrically engage the shield sheath of the cord.

Modular connector for terminating EMI/RFI shielded cordage

An improved modular plug connector is provided with a contact as a part of the connector itself for terminating the foil shield of a cord to prevent or control the radiation of interference-causing electromagnetic and radio frequency signals from the region of the connector, such as when the cord is used in the transmission of high frequency digital-based data. The connector incorporating the shield terminating contact also advantageously provides for the isolation and grounding of electrostatic charge. The shield terminating contact is constituted by a contact pin which passes through a side wall of the connector housing into the cord-receiving cavity to electrically engage the cord shield.

Growing community of inventors

Ossining, NY, United States of America

Robert J Brennan