Patents by Inventor John Robert Dunham
John Robert Dunham has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9905975Abstract: A modular electrical connector with broad-side coupled signal conductors in a right angle intermediate portion and edge coupled end portions. Broadside coupling provides balanced pairs for very high frequency operation, while edge coupling provides a high density interconnection system at low cost. Each module has separately shielded signal conductor pairs. The shielding is shaped to avoid or suppress undesirable propagation modes within an enclosure formed by shielding per module. Lossy material is selectively placed within and outside the shielding per module to likewise avoid or suppress unwanted signal propagation.Type: GrantFiled: January 22, 2015Date of Patent: February 27, 2018Assignee: Amphenol CorporationInventors: Marc B. Cartier, Jr., John Robert Dunham, Mark W. Gailus, Donald A. Girard, Jr., Brian Kirk, David Levine, Vysakh Sivarajan
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Publication number: 20170294743Abstract: A modular electrical connector with separately shielded signal conductor pairs. In some embodiments, the connector is may be assembled from modules, each containing a pair of signal conductors with surrounding partially or fully conductive material.Type: ApplicationFiled: June 19, 2017Publication date: October 12, 2017Applicant: Amphenol CorporationInventors: Mark W. Gailus, John Robert Dunham, Marc B. Cartier, JR., Donald A. Girard, JR.
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Patent number: 9774144Abstract: A modular electrical connector with separately shielded signal conductor pairs. The connector may be assembled from modules, each containing a pair of signal conductors with surrounding partially or fully conductive material. Modules of different sizes may be assembled into wafers, which are then assembled into a connector. Wafers may include lossy material. In some embodiments, shielding members of two mating connectors may each have compliant members along their distal portions, such that, the shielding members engage at points of contact at multiple locations, some of which are adjacent the mating edge of each of the mating shielding members.Type: GrantFiled: October 27, 2016Date of Patent: September 26, 2017Assignee: Amphenol CorporationInventors: Marc B. Cartier, Jr., John Robert Dunham, Mark W. Gailus, Donald A. Girard, Jr., David Manter, Tom Pitten, Vysakh Sivarajan, Michael Joseph Snyder
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Patent number: 9685736Abstract: A modular electrical connector with separately shielded signal conductor pairs. In some embodiments, the connector is assembled from modules, each containing a pair of signal conductors with surrounding partially or fully conductive material. In some embodiments, the modules have projecting portions, of conductive and/or dielectric material, that are shaped and positioned to reduce changes in impedance along the signal paths as a function of separation of conductive elements, when the connectors are separated by less than the functional mating range.Type: GrantFiled: November 12, 2015Date of Patent: June 20, 2017Assignee: Amphenol CorporationInventors: Mark W. Gailus, John Robert Dunham, Marc B. Cartier, Jr., Donald A. Girard, Jr.
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Publication number: 20170141517Abstract: An electrical connector designed for high speed signals. The connector includes one or more features that, when used alone or in combination, extend performance to higher speeds. These features may include compensation for tie bars that are used to hold conductive members in place for molding a housing around the conductive members. Removal of the tie bars during manufacture of the connector may leave artifacts in the conductive members and/or housing, which may degrade electrical performance. However, that degradation may be avoided by features that compensate for the artifacts. The conductive members, for example, may include regions, adjacent tie bar locations, that compensate for portions of the tie bar that are not fully removed.Type: ApplicationFiled: September 26, 2016Publication date: May 18, 2017Applicant: Amphenol CorporationInventors: Marc B. Cartier, JR., Mark W. Gailus, Thomas S. Cohen, John Robert Dunham, Vysakh Sivarajan
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Publication number: 20170093093Abstract: An electrical connector designed for high speed signals. The connector includes one or more features that, when used alone or in combination, extend performance to higher speeds. These features may include compensation for tie bars that are used to hold conductive members in place for molding a housing around the conductive members. Removal of the tie bars during manufacture of the connector may leave artifacts in the conductive members and/or housing, which may be addressed by the features. The conductive members, for example, may include regions, adjacent tie bar locations, that compensate for portions of the tie bar that are riot fully removed. Alternatively or additionally, a housing may include openings around tie bar locations such that a punch may be used to sever the tie bars. These openings may be filled to avoid performance-affecting artifacts.Type: ApplicationFiled: December 12, 2016Publication date: March 30, 2017Applicant: Amphenol CorporationInventors: Marc B. Cartier, JR., Mark W. Gailus, Thomas S. Cohen, John Robert Dunham, Vysakh Sivarajan
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Patent number: 9583880Abstract: A direct-connect orthogonal electrical connection system with improved high frequency performance is provided. A conductive member is provided between first and second components, each having signal and ground conductors. The conductive member is electrically coupled to ground conductors of both the first and second components and may also have openings through which signal conductors of the first and second components may connect. As such, signal conductors may be positioned relative to the conductive member such that a uniform impedance is maintained along a signal path throughout the interconnection, reducing noise and reflections. The signal conductors may be formed with multiple beams of different lengths to create multiple points of contact distributed along an elongated dimension. For example, a third beam may be fused to a mating portion to allow a tolerance for deviations in alignment between two directly connected connectors.Type: GrantFiled: October 9, 2013Date of Patent: February 28, 2017Assignee: Amphenol CorporationInventor: John Robert Dunham
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Publication number: 20170047692Abstract: A modular electrical connector with separately shielded signal conductor pairs. The connector may be assembled from modules, each containing a pair of signal conductors with surrounding partially or fully conductive material. Modules of different sizes may be assembled into wafers, which are then assembled into a connector. Wafers may include lossy material. In some embodiments, shielding members of two mating connectors may each have compliant members along their distal portions, such that, the shielding members engage at points of contact at multiple locations, some of which are adjacent the mating edge of each of the mating shielding members.Type: ApplicationFiled: October 27, 2016Publication date: February 16, 2017Applicant: Amphenol CorporationInventors: Marc B. Cartier, JR., John Robert Dunham, Mark W. Gailus, Donald A. Girard, JR., David Manter, Tom Pitten, Vysakh Sivarajan, Michael Joseph Snyder
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Publication number: 20170025783Abstract: A modular electrical connector with modular components suitable for assembly into a right angle connector may also be used in forming an orthogonal connector or connector in other desired configurations. The connector modules may be configured through the user of extender modules. Those connector modules may be held together as a right angle connector with a front housing portion, which, in some embodiments, may be shaped differently depending on whether the connector modules are used to form a right angle connector or an orthogonal connector. When designed to form an orthogonal connector, the extender modules may interlock into subarrays, which may be held to other connector components through the use of an extender shell. The mating contact portions on the extender modules may be such that a right angle connector, similarly made with connector modules, may directly mate with the orthogonal connector.Type: ApplicationFiled: July 21, 2016Publication date: January 26, 2017Applicant: Amphenol CorporationInventors: Allan Astbury, John Robert Dunham
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Patent number: 9520689Abstract: An electrical connector designed for high speed signals. The connector includes one or more features that, when used alone or in combination, extend performance to higher speeds. These features may include compensation for tie bars that are used to hold conductive members in place for molding a housing around the conductive members. Removal of the tie bars during manufacture of the connector may leave artifacts in the conductive members and/or housing, which may be addressed by the features. The conductive members, for example, may include regions, adjacent tie bar locations, that compensate for portions of the tie bar that are not fully removed. Alternatively or additionally, a housing may include openings around tie bar locations such that a punch may be used to sever the tie bars. These openings may be filled to avoid performance-affecting artifacts.Type: GrantFiled: March 13, 2014Date of Patent: December 13, 2016Assignee: Amphenol CorporationInventors: Marc B. Cartier, Jr., Mark W. Gailus, Thomas S. Cohen, John Robert Dunham, Vysakh Sivarajan
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Patent number: 9509101Abstract: A modular electrical connector with separately shielded signal conductor pairs. The connector may be assembled from modules, each containing a pair of signal conductors with surrounding partially or fully conductive material. Modules of different sizes may be assembled into wafers, which are then assembled into a connector. Wafers may include lossy material. In some embodiments, shielding members of two mating connectors may each have compliant members along their distal portions, such that, the shielding members engage at points of contact at multiple locations, some of which are adjacent the mating edge of each of the mating shielding members.Type: GrantFiled: January 22, 2015Date of Patent: November 29, 2016Assignee: Amphenol CorporationInventors: Marc B. Cartier, Jr., John Robert Dunham, Mark W. Gailus, Donald A. Girard, Jr., David Manter, Tom Pitten, Vysakh Sivarajan, Michael Joseph Snyder
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Publication number: 20160344141Abstract: A modular electrical connector with broad-side coupled signal conductors in a right angle intermediate portion and edge coupled end portions. Broadside coupling provides balanced pairs for very high frequency operation, while edge coupling provides a high density interconnection system at low cost. Each module has separately shielded signal conductor pairs. The shielding is shaped to avoid or suppress undesirable propagation modes within an enclosure formed by shielding per module. Lossy material may be selectively placed within and outside the shielding per module to likewise avoid or suppress unwanted signal propagation.Type: ApplicationFiled: January 22, 2015Publication date: November 24, 2016Applicant: Amphenol CorporationInventors: Marc B. Cartier, JR., John Robert Dunham, Mark W. Gailus, Donald A. Girard, JR., Brian Kirk, David Levine, Vysakh Sivarajan
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Patent number: 9455545Abstract: An electrical connector designed for high speed signals. The connector includes one or more features that, when used alone or in combination, extend performance to higher speeds. These features may include compensation for tie bars that are used to hold conductive members in place for molding a housing around the conductive members. Removal of the tie bars during manufacture of the connector may leave artifacts in the conductive members and/or housing, which may degrade electrical performance. However, that degradation may be avoided by features that compensate for the artifacts. The conductive members, for example, may include regions, adjacent tie bar locations, that compensate for portions of the tie bar that are not fully removed.Type: GrantFiled: March 13, 2014Date of Patent: September 27, 2016Assignee: Amphenol CorporationInventors: Marc B. Cartier, Jr., Mark W. Gailus, Thomas S. Cohen, John Robert Dunham, Vysakh Sivarajan
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Patent number: 9450344Abstract: A modular electrical connector with separately shielded signal conductor pairs. The connector may be assembled from modules, each containing a pair of signal conductors with surrounding partially or fully conductive material. Modules of different sizes may be assembled into wafers, which are then assembled into a connector. Wafers may include lossy material. In some embodiments, shielding members of two mating connectors may each have compliant members along their distal portions, such that, the shielding members engage at points of contact at multiple locations, some of which are adjacent the mating edge of each of the mating shielding members.Type: GrantFiled: January 22, 2015Date of Patent: September 20, 2016Assignee: Amphenol CorporationInventors: Marc B. Cartier, Jr., John Robert Dunham, Mark W. Gailus, Donald A. Girard, Jr., David Manter, Tom Pitten, Vysakh Sivarajan, Michael Joseph Snyder
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Patent number: 9419360Abstract: Mating interfaces for an electrical connector are provided. In some embodiments, a mating interface comprises: a plurality of conductive elements positioned in a plurality of columns, each of the plurality of conductive elements comprising: a sheet of conductive material formed into a three dimensional structure such that the conductive material is disposed on at least two sides of an opening adapted to receive a mating conductive element; and at least one tab cut in the sheet, the at least one tab comprising a mating contact surface facing the opening and adapted to make contact to the mating conductive element.Type: GrantFiled: March 14, 2014Date of Patent: August 16, 2016Assignee: Amphenol CorporationInventors: Thomas S. Cohen, David M. McNamara, John Robert Dunham, Michael Joseph Snyder
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Publication number: 20160141807Abstract: A modular electrical connector with separately shielded signal conductor pairs. The connector may be assembled from modules, each containing a pair of signal conductors with surrounding partially or fully conductive material. The modules may have projecting portions, of conductive and/or dielectric material, that are shaped and positioned to reduce changes in impedance along the signal paths as a function of separation of conductive elements, when the connectors are separated by less than the functional mating range.Type: ApplicationFiled: November 12, 2015Publication date: May 19, 2016Applicant: Amphenol CorporationInventors: Mark W. Gailus, John Robert Dunham, Marc B. Cartier, JR., Donald A. Girard, JR.
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Publication number: 20150236452Abstract: A modular electrical connector with separately shielded signal conductor pairs. The connector may be assembled from modules, each containing a pair of signal conductors with surrounding partially or fully conductive material. Modules of different sizes may be assembled into wafers, which are then assembled into a connector. Wafers may include lossy material. In some embodiments, shielding members of two mating connectors may each have compliant members along their distal portions, such that, the shielding members engage at points of contact at multiple locations, some of which are adjacent the mating edge of each of the mating shielding members.Type: ApplicationFiled: January 22, 2015Publication date: August 20, 2015Applicant: Amphenol CorporationInventors: Marc B. Cartier, JR., John Robert Dunham, Mark W. Gailus, Donald A. Girard, JR., David Manter, Tom Pitten, Vysakh Sivarajan, Michael Joseph Snyder
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Publication number: 20150236451Abstract: A modular electrical connector with separately shielded signal conductor pairs. The connector may be assembled from modules, each containing a pair of signal conductors with surrounding partially or fully conductive material. Modules of different sizes may be assembled into wafers, which are then assembled into a connector. Wafers may include lossy material. In some embodiments, shielding members of two mating connectors may each have compliant members along their distal portions, such that, the shielding members engage at points of contact at multiple locations, some of which are adjacent the mating edge of each of the mating shielding members.Type: ApplicationFiled: January 22, 2015Publication date: August 20, 2015Applicant: Amphenol CorporationInventors: Marc B. Cartier, JR., John Robert Dunham, Mark W. Gailus, Donald A. Girard, JR., David Manter, Tom Pitten, Vysakh Sivarajan, Michael Joseph Snyder
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Publication number: 20140273557Abstract: An electrical connector designed for high speed signals. The connector includes one or more features that, when used alone or in combination, extend performance to higher speeds. These features may include compensation for tie bars that are used to hold conductive members in place for molding a housing around the conductive members. Removal of the tie bars during manufacture of the connector may leave artifacts in the conductive members and/or housing, which may be addressed by the features. The conductive members, for example, may include regions, adjacent tie bar locations, that compensate for portions of the tie bar that are not fully removed. Alternatively or additionally, a housing may include openings around tie bar locations such that a punch may be used to sever the tie bars. These openings may be filled to avoid performance-affecting artifacts.Type: ApplicationFiled: March 13, 2014Publication date: September 18, 2014Applicant: Amphenol CorporationInventors: Marc B. Cartier, JR., Mark W. Gailus, Thomas S. Cohen, John Robert Dunham, Vysakh Sivarajan
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Publication number: 20140273663Abstract: An electrical connector designed for high speed signals. The connector includes one or more features that, when used alone or in combination, extend performance to higher speeds. These features may include compensation for tie bars that are used to hold conductive members in place for molding a housing around the conductive members. Removal of the tie bars during manufacture of the connector may leave artifacts in the conductive members and/or housing, which may degrade electrical performance. However, that degradation may be avoided by features that compensate for the artifacts. The conductive members, for example, may include regions, adjacent tie bar locations, that compensate for portions of the tie bar that are not fully removed.Type: ApplicationFiled: March 13, 2014Publication date: September 18, 2014Applicant: Amphenol CorporationInventors: Marc B. Cartier, JR., Mark W. Gailus, Thomas S. Cohen, John Robert Dunham, Vysakh Sivarajan