Patents by Inventor Thomas S. Cohen
Thomas S. Cohen 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: 10063013Abstract: 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: September 26, 2016Date of Patent: August 28, 2018Assignee: Amphenol CorporationInventors: Marc B. Cartier, Jr., Mark W. Gailus, Thomas S. Cohen, John Robert Dunham, Vysakh Sivarajan
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Patent number: 10020607Abstract: An electrical connector for connecting a conductor of a daughter card connector wafer with a blade in the housing of a backplane connector. The daughter card conductor has a body with two elongated beams extending outward from the body. The two elongated beams each have an outer edge and an inner edge, whereby an opening is defined between the inner edges. The backplane conductor has a body with a narrowed tab portion extending outward from said second conductor body. The narrowed tab portion having outer opposite edges and is sized so that the narrowed tab portion fits between at least a portion of the outer edges of the two elongated beams, and in some cases between at least a portion of the inner edges of the two elongated beams.Type: GrantFiled: January 31, 2017Date of Patent: July 10, 2018Assignee: Amphenol CorporationInventors: Mark W. Gailus, Brian P. Kirk, Thomas S. Cohen
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Publication number: 20180145438Abstract: An electrical connector with improved high frequency performance. The connector has conductive elements, forming both signal and ground conductors, that have multiple points of contact distributed along an elongated dimension. The ground conductors may be formed with multiple beams of different length. The signal conductors may be formed with multiple contact regions on a single beam, with different characteristics. Signal conductors may have beams that are jogged to provide both a desired impedance and mating contact pitch. Additionally, electromagnetic radiation, inside and/or outside the connector may be shaped with an insert electrically connecting multiple ground structures and/or a contact feature coupling ground conductors to a stiffener. The conductive elements in different columns may be shaped differently to reduce crosstalk.Type: ApplicationFiled: November 27, 2017Publication date: May 24, 2018Inventor: Thomas S. Cohen
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Patent number: 9831588Abstract: An electrical connector with improved high frequency performance. The connector has conductive elements, forming both signal and ground conductors, that have multiple points of contact distributed along an elongated dimension. The ground conductors may be formed with multiple beams of different length. The signal conductors may be formed with multiple contact regions on a single beam, with different characteristics. Signal conductors may have beams that are jogged to provide both a desired impedance and mating contact pitch. Additionally, electromagnetic radiation, inside and/or outside the connector may be shaped with an insert electrically connecting multiple ground structures and/or a contact feature coupling ground conductors to a stiffener. The conductive elements in different columns may be shaped differently to reduce crosstalk.Type: GrantFiled: August 22, 2013Date of Patent: November 28, 2017Assignee: Amphenol CorporationInventor: Thomas S. Cohen
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Patent number: 9825391Abstract: A broadside coupled connector assembly has two sets of conductors, each separate planes. By providing the same path lengths, there is no skew between the conductors of the differential pair and the impedance of those conductors is identical. The conductor sets are formed by embedding the first set of conductors in an insulated housing having a top surface with channels. The second set of conductors is placed within the channels so that no air gaps form between the two sets of conductors. A second insulated housing is filled over the second set of conductors and into the channels to form a completed wafer. The ends of the conductors are received in a blade housing. Differential and ground pairs of blades have one end that extends through the bottom of the housing having a small footprint. An opposite end of the pairs of blades diverge to connect with the wafers.Type: GrantFiled: July 29, 2014Date of Patent: November 21, 2017Assignee: Amphenol CorporationInventors: Thomas S. Cohen, Huilin Ren, Marc B. Cartier, Jr., Trent K. Do, Mark W. Gailus
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Patent number: 9780493Abstract: An electrical interconnection system with high speed, high density electrical connectors. One of the connectors includes a mating contact portion that has multiple contact surface. The mating contact portion has multiple segments, each with a contact surface, such that multiple points of contact to a complementary mating contact portion in a mating connector are provided for mechanical robustness. Such a mating contact may have parallel elongated members on which the mating surface are positioned, providing for the possibility of more than two contact surface per mating contact portion. The mating contact surfaces may be positioned on the elongated members such that the points of contact are at different distances from the distal end of the mating contact portion.Type: GrantFiled: July 15, 2014Date of Patent: October 3, 2017Assignee: Amphenol CorporationInventors: Thomas S. Cohen, Trent K. Do, Brian Kirk
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Publication number: 20170207562Abstract: An electrical connector for connecting a conductor of a daughter card connector wafer with a blade in the housing of a backplane connector. The daughter card conductor has a body with two elongated beams extending outward from the body. The two elongated beams each have an outer edge and an inner edge, whereby an opening is defined between the inner edges. The backplane conductor has a body with a narrowed tab portion extending outward from said second conductor body. The narrowed tab portion having outer opposite edges and is sized so that the narrowed tab portion fits between at least a portion of the outer edges of the two elongated beams, and in some cases between at least a portion of the inner edges of the two elongated beams.Type: ApplicationFiled: January 31, 2017Publication date: July 20, 2017Inventors: Mark W. Gailus, Brian P. Kirk, Thomas S. Cohen
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Patent number: 9705255Abstract: An improved broadside coupled, open pin field connector. The connector incorporates lossy material to selectively dampen resonance within pairs of conductive members connected to ground when the connector is mounted to a printed circuit board. The material may also decrease crosstalk and mode conversion. The lossy material is selectively positioned to substantially dampen resonances along pairs that may be connected to ground without unacceptably attenuating signals carried by other pairs. The lossy material may be selectively positioned near mating contact portions of the conductive members. Multiple techniques are described for selectively positioning the lossy material, including molding, inserting lossy members into a housing or coating surfaces of the connector housing. By using material of relatively low loss, loss when the conductive members are used to carry signals is relatively low, but an appreciable attenuation of resonances is provided on pairs connected to ground.Type: GrantFiled: November 20, 2015Date of Patent: July 11, 2017Assignee: Amphenol CorporationInventors: Prescott B. Atkinson, Brian Kirk, Mark W. Gailus, David Manter, Thomas S. Cohen
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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: 9583853Abstract: An RF connector module and associated printed circuit board providing high isolation and controlled impedance at RF frequencies. The connector module may be manufactured using conventional manufacturing techniques, such as stamping, insert molding, multi-shot molding and interference fit between components, to provide low cost. A connector module constructed with these techniques may implement a co-planar waveguide structure, with conductive shields for isolation and lossy material to enforce co-planar propagation modes. The printed circuit board may similarly be manufactured using conventional manufacturing techniques, including drilling to form vias. As a result, an interconnection system may be manufactured with low cost. These techniques may be applied to provide performance, including in the form of isolation between RF signals, comparable to that provided by more expensive components.Type: GrantFiled: June 28, 2013Date of Patent: February 28, 2017Assignee: Amphenol CorporationInventors: Marc B. Cartier, Jr., David Manter, Prescott B. Atkinson, Philip T. Stokoe, Thomas S. Cohen, Mark W. Gailus
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Patent number: 9559468Abstract: An electrical connector for connecting a conductor of a daughter card connector wafer with a blade in the housing of a backplane connector. The daughter card conductor has a body with two elongated beams extending outward from the body. The two elongated beams each have an outer edge and an inner edge, whereby an opening is defined between the inner edges. The backplane conductor has a body with a narrowed tab portion extending outward from said second conductor body. The narrowed tab portion having outer opposite edges and is sized so that the narrowed tab portion fits between at least a portion of the outer edges of the two elongated beams, and in some cases between at least a portion of the inner edges of the two elongated beams.Type: GrantFiled: February 6, 2015Date of Patent: January 31, 2017Assignee: Amphenol CorporationInventors: Mark W. Gailus, Brian P. Kirk, Thomas S. Cohen
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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: 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: 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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Patent number: 9362646Abstract: Mating interfaces for high speed, high density electrical connectors. In some embodiments, a contact comprises a base region, a first elongated member comprising a distal end attached to the base region and a proximal portion, a second elongated member comprising a distal end attached to the base region and a proximal portion, and a strap coupling the distal portion of the first elongated member to the distal portion of the second elongated member, wherein the strap is conductive and compliant such that the distal portion of the first elongated member is capable of moving independently of and is electrically connected to the distal portion of the second elongated member.Type: GrantFiled: March 13, 2014Date of Patent: June 7, 2016Assignee: Amphenol CorporationInventor: Thomas S. Cohen
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Publication number: 20160149343Abstract: An improved broadside coupled, open pin field connector. The connector incorporates lossy material to selectively dampen resonance within pairs of conductive members connected to ground when the connector is mounted to a printed circuit board. The material may also decrease crosstalk and mode conversion. The lossy material is selectively positioned to substantially dampen resonances along pairs that may be connected to ground without unacceptably attenuating signals carried by other pairs. The lossy material may be selectively positioned near mating contact portions of the conductive members. Multiple techniques are described for selectively positioning the lossy material, including molding, inserting lossy members into a housing or coating surfaces of the connector housing. The lossy material alternatively may be positioned between broad sides of conductive members of a pair.Type: ApplicationFiled: November 20, 2015Publication date: May 26, 2016Applicant: Amphenol CorporationInventors: Prescott B. Atkinson, Brian Kirk, Mark W. Gailus, David Manter, Thomas S. Cohen
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Patent number: 9240644Abstract: An electrical connector with improved high frequency performance. The connector has conductive elements, forming both signal and ground conductors, that have multiple points of contact distributed along an elongated dimension. The ground conductors may be formed with multiple beams of different length. The signal conductors may be formed with multiple contact regions on a single beam, with different characteristics. Signal conductors may have beams that are jogged to provide both a desired impedance and mating contact pitch. Additionally, electromagnetic radiation, inside and/or outside the connector may be shaped with an insert electrically connecting multiple ground structures and/or a contact feature coupling ground conductors to a stiffener. The conductive elements in different columns may be shaped differently to reduce crosstalk.Type: GrantFiled: August 22, 2013Date of Patent: January 19, 2016Assignee: Amphenol CorporationInventor: Thomas S. Cohen
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Patent number: 9225085Abstract: An RF connector module and associated printed circuit board providing high isolation and controlled impedance at RF frequencies. The connector module may be manufactured using conventional manufacturing techniques, such as stamping, insert molding, multi-shot molding and interference fit between components, to provide low cost. A connector module constructed with these techniques may implement a co-planar waveguide structure, with conductive shields for isolation and lossy material to enforce co-planar propagation modes. The printed circuit board may similarly be manufactured using conventional manufacturing techniques, including drilling to form vias. As a result, an interconnection system may be manufactured with low cost. These techniques may be applied to provide performance, including in the form of isolation between RF signals, comparable to that provided by more expensive components.Type: GrantFiled: June 28, 2013Date of Patent: December 29, 2015Assignee: Amphenol CorporationInventors: Marc B. Cartier, Jr., David Manter, Prescott B. Atkinson, Philip T. Stokoe, Thomas S. Cohen, Mark W. Gailus
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Patent number: 9219335Abstract: An improved broadside coupled, open pin field connector. The connector incorporates lossy material to selectively dampen resonance within pairs of conductive members connected to ground when the connector is mounted to a printed circuit board. The material may also decrease crosstalk and mode conversion. The lossy material is selectively positioned to substantially dampen resonances along pairs that may be connected to ground without unacceptably attenuating signals carried by other pairs. The lossy material may be selectively positioned near mating contact portions of the conductive members. Multiple techniques are described for selectively positioning the lossy material, including molding, inserting lossy members into a housing or coating surfaces of the connector housing. The lossy material alternatively may be positioned between broad sides of conductive members of a pair.Type: GrantFiled: August 28, 2014Date of Patent: December 22, 2015Assignee: Amphenol CorporationInventors: Prescott B. Atkinson, Brian Kirk, Mark W. Gailus, David Manter, Thomas S. Cohen