Patents by Inventor Richard D. Twigg
Richard D. Twigg 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: 11604215Abstract: A sensor for a separable connector comprises a plug body comprising an insulating resin, the plug body configured to be inserted into the separable connector to encase a high voltage conductor disposed in the separable connector. The sensor also includes one or more high voltage capacitors encased by the insulating resin and configured to be electrically coupled to the separable connector at a first end portion when the plug body is inserted and one or more low voltage capacitors electrically coupled in series to the one or more high voltage capacitors to form a capacitive voltage divider. The sensor also includes a low voltage connection configured to provide a low voltage signal corresponding to a high voltage signal present in the separable connector, the low voltage connection comprising a coaxial contact having a first metal contact and a second metal contact.Type: GrantFiled: April 19, 2021Date of Patent: March 14, 2023Assignee: 3M Innovative Properties CompanyInventors: Christopher R. Wilson, Laszlo Markos, Carl J. Wentzel, Richard D. Twigg
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Patent number: 11262387Abstract: A device to measure the voltage at a test point, also referred to as a test point voltage sensor, comprises a housing formed from a first material and a second material, wherein the first material comprises an insulating material and the second material comprises a conductive or semiconductive material. The housing includes an opening configured to cover a test point of a cable accessory. The device further includes a pressure pad, disposed in the housing, having a conductive mating surface configured to contact a test point of the basic insulation plug or end plug. The device further includes a low side capacitor embedded in the housing and electrically coupled to the conductive mating surface. The device further includes a signal wire electrically coupled to the low side capacitor.Type: GrantFiled: September 27, 2019Date of Patent: March 1, 2022Assignee: 3M Innovative Properties CompanyInventors: David V. Mahoney, Carl J. Wentzel, Shuguang Wu, Laszlo Markos, Andrew C. Lottes, James S. McHattie, Christopher R. Wilson, Richard D. Twigg, Pete D. Jordan, Sean C. Davis
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Publication number: 20210239743Abstract: A sensor for a separable connector comprises a plug body comprising an insulating resin, the plug body configured to be inserted into the separable connector to encase a high voltage conductor disposed in the separable connector. The sensor also includes one or more high voltage capacitors encased by the insulating resin and configured to be electrically coupled to the separable connector at a first end portion when the plug body is inserted and one or more low voltage capacitors electrically coupled in series to the one or more high voltage capacitors to form a capacitive voltage divider. The sensor also includes a low voltage connection configured to provide a low voltage signal corresponding to a high voltage signal present in the separable connector, the low voltage connection comprising a coaxial contact having a first metal contact and a second metal contact.Type: ApplicationFiled: April 19, 2021Publication date: August 5, 2021Inventors: Christopher R. Wilson, Laszlo Markos, Carl J. Wentzel, Richard D. Twigg
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Publication number: 20210239738Abstract: A sensor for a separable connector includes an elongate plug body extending along an axis and includes an insulating resin. The plug body includes a high voltage connection at least partially encased by the insulating resin and includes a low voltage connection spaced along the axis from the high voltage connection. The plug body also includes a substrate at least partially encased in the insulating resin and extending around the axis between a high voltage portion and a low voltage portion of the substrate. A circuit is disposed on the substrate and extends from the high voltage portion to the low voltage portion of the substrate. The circuit includes a plurality of first impedance elements electrically coupled between the high and low voltage connections. One or more second impedance elements are electrically coupled to the circuit via the low voltage connection to form a voltage divider.Type: ApplicationFiled: June 13, 2019Publication date: August 5, 2021Inventors: Jaylon D. Loyd, Christopher R. Wilson, Carl J. Wentzel, Richard D. Twigg, Harald Westkamp, Mark Gravermann, Gunther A. J. Stollwerck, Jens Weichold
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Patent number: 10983148Abstract: A sensor for a separable connector comprises a plug body comprising an insulating resin, the plug body configured to be inserted into the separable connector to encase a high voltage conductor disposed in the separable connector. The sensor also includes one or more high voltage capacitors encased by the insulating resin and configured to be electrically coupled to the separable connector at a first end portion when the plug body is inserted and one or more low voltage capacitors electrically coupled in series to the one or more high voltage capacitors to form a capacitive voltage divider. The sensor also includes a low voltage connection configured to provide a low voltage signal corresponding to a high voltage signal present in the separable connector, the low voltage connection comprising a coaxial contact having a first metal contact and a second metal contact.Type: GrantFiled: November 13, 2019Date of Patent: April 20, 2021Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Christopher R. Wilson, Laszlo Markos, Carl J. Wentzel, Richard D. Twigg
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Publication number: 20200158762Abstract: A sensor for a separable connector comprises a plug body comprising an insulating resin, the plug body configured to be inserted into the separable connector to encase a high voltage conductor disposed in the separable connector. The sensor also includes one or more high voltage capacitors encased by the insulating resin and configured to be electrically coupled to the separable connector at a first end portion when the plug body is inserted and one or more low voltage capacitors electrically coupled in series to the one or more high voltage capacitors to form a capacitive voltage divider. The sensor also includes a low voltage connection configured to provide a low voltage signal corresponding to a high voltage signal present in the separable connector, the low voltage connection comprising a coaxial contact having a first metal contact and a second metal contact.Type: ApplicationFiled: November 13, 2019Publication date: May 21, 2020Inventors: Christopher R. Wilson, Laszlo Markos, Carl J. Wentzel, Richard D. Twigg
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Patent number: 10658779Abstract: A connector for establishing electrical connections with a PCB comprises first and second sets of contact pads arranged in first and second rows on a same surface of the PCB. The connector includes a first set of elongated contacts, a second set of elongated contacts, and a contact block. The first set of contacts have contact surfaces that form a first row of contact surfaces configured to make and break electrical connectivity with the first set of contact pads of the PCB. The second set of contacts have contact surfaces that form a second row of contact surfaces configured to make and break electrical connectivity with the second set of contact pads of the PCB. The contact block supports the first and second sets of contacts and causes the contact surfaces to wipe against the first and second sets of contact pads when making and breaking electrical connectivity therewith.Type: GrantFiled: January 24, 2019Date of Patent: May 19, 2020Assignee: 3M Innovative Properties CompanyInventors: Richard J. Scherer, Joseph N. Castiglione, Daniel F. Cronch, Jesse A. Mann, Leon D. Schmidt, Steven A. Neu, Richard D. Twigg, Gregg R. Couture, James A. Wessman
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Publication number: 20200110114Abstract: A device to measure the voltage at a test point, also referred to as a test point voltage sensor, comprises a housing formed from a first material and a second material, wherein the first material comprises an insulating material and the second material comprises a conductive or semiconductive material. The housing includes an opening configured to cover a test point of a cable accessory. The device further includes a pressure pad, disposed in the housing, having a conductive mating surface configured to contact a test point of the basic insulation plug or end plug. The device further includes a low side capacitor embedded in the housing and electrically coupled to the conductive mating surface. The device further includes a signal wire electrically coupled to the low side capacitor.Type: ApplicationFiled: September 27, 2019Publication date: April 9, 2020Inventors: David V. Mahoney, Carl J. Wentzel, Shuguang WU, Laszlo Markos, Andrew C. Lottes, James S. McHattie, Christopher R. Wilson, Richard D. Twigg, Pete D. Jordan, Sean C. Davis
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Publication number: 20190157787Abstract: A connector for establishing electrical connections with a PCB comprises first and second sets of contact pads arranged in first and second rows on a same surface of the PCB. The connector includes a first set of elongated contacts, a second set of elongated contacts, and a contact block. The first set of contacts have contact surfaces that form a first row of contact surfaces configured to make and break electrical connectivity with the first set of contact pads of the PCB. The second set of contacts have contact surfaces that form a second row of contact surfaces configured to make and break electrical connectivity with the second set of contact pads of the PCB. The contact block supports the first and second sets of contacts and causes the contact surfaces to wipe against the first and second sets of contact pads when making and breaking electrical connectivity therewith.Type: ApplicationFiled: January 24, 2019Publication date: May 23, 2019Inventors: Richard J. Scherer, Joseph N. Castiglione, Daniel F. Cronch, Jesse A. Mann, Leon D. Schmidt, Steven A. Neu, Richard D. Twigg, Gregg R. Couture, James A. Wessman
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Patent number: 10236613Abstract: A connector for establishing electrical connections with a PCB comprises first and second sets of contact pads arranged in first and second rows on a same surface of the PCB. The connector includes a first set of elongated contacts, a second set of elongated contacts, and a contact block. The first set of contacts have contact surfaces that form a first row of contact surfaces configured to make and break electrical connectivity with the first set of contact pads of the PCB. The second set of contacts have contact surfaces that form a second row of contact surfaces configured to make and break electrical connectivity with the second set of contact pads of the PCB. The contact block supports the first and second sets of contacts and causes the contact surfaces to wipe against the first and second sets of contact pads when making and breaking electrical connectivity therewith.Type: GrantFiled: July 23, 2015Date of Patent: March 19, 2019Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Richard J. Scherer, Joseph N. Castiglione, Daniel F. Cronch, Jesse A. Mann, Leon D. Schmidt, Steven A. Neu, Richard D. Twigg, Gregg R. Couture, James A. Wessman
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Publication number: 20170207561Abstract: A connector for establishing electrical connections with a PCB comprises first and second sets of contact pads arranged in first and second rows on a same surface of the PCB. The connector includes a first set of elongated contacts, a second set of elongated contacts, and a contact block. The first set of contacts have contact surfaces that form a first row of contact surfaces configured to make and break electrical connectivity with the first set of contact pads of the PCB. The second set of contacts have contact surfaces that form a second row of contact surfaces configured to make and break electrical connectivity with the second set of contact pads of the PCB. The contact block supports the first and second sets of contacts and causes the contact surfaces to wipe against the first and second sets of contact pads when making and breaking electrical connectivity therewith.Type: ApplicationFiled: July 23, 2015Publication date: July 20, 2017Inventors: Richard J. Scherer, Joseph N. Castiglione, Daniel F. Cronch, Jesse A. Mann, Leon D. Schmidt, Steven A. Neu, Richard D. Twigg, Gregg R. Couture, James A. Wessman
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Publication number: 20110214735Abstract: Provided are conductive laminated assemblies and conductive assembly tapes that are used thereon. The conductive laminated assemblies include a conductive foil, a pressure sensitive adhesive, a conductive element as a part of the foil or in the pressure sensitive adhesive and a conductive substrate. The conductive substrate can be a photovoltaic or solar cell.Type: ApplicationFiled: November 2, 2009Publication date: September 8, 2011Applicant: 3M INNOVATIVE PROPERITIES COMPANYInventors: David V. Mahoney, Mitchell T. Huang, Richard D. Twigg
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Patent number: 7670197Abstract: An electrical splice connector includes a housing, a conductive member retained within the housing and defining a longitudinal axis, and at least two biasing members circumferentially disposed about the longitudinal axis of the conductive member and biased toward the conductive member. Each of the biasing members is configured to urge conductors inserted into the housing into electrical contact with the conductive member.Type: GrantFiled: December 20, 2007Date of Patent: March 2, 2010Assignee: 3M Innovative Properties CompanyInventors: Eugene P. Janulis, David V. Mahoney, Garry L. Sjolander, Richard D. Twigg
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Publication number: 20090163086Abstract: An electrical splice connector includes a housing, a conductive member retained within the housing and defining a longitudinal axis, and at least two biasing members circumferentially disposed about the longitudinal axis of the conductive member and biased toward the conductive member. Each of the biasing members is configured to urge conductors inserted into the housing into electrical contact with the conductive member.Type: ApplicationFiled: December 20, 2007Publication date: June 25, 2009Inventors: Eugene P. Janulis, David V. Mahoney, Garry L. Sjolander, Richard D. Twigg
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Publication number: 20090163064Abstract: An electrical connector includes an electrically insulative cylindrical housing, an electrically conductive member retained within the cylindrical housing, and at least one biasing member biased toward a surface of the conductive member. The conductive member defines a longitudinal axis and the biasing member(s) is/are circumferentially disposed about the longitudinal axis of the conductive member. Conductors inserted into the cylindrical housing are urged into electrical contact with the conductive member by the biasing member(s).Type: ApplicationFiled: December 20, 2007Publication date: June 25, 2009Inventors: Eugene P. Janulis, David V. Mahoney, Garry L. Sjolander, Richard D. Twigg
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Patent number: 7267571Abstract: A connector includes a base member and a cap designed to be fitted onto each other. The base member or the cap may have a double-wall configuration to improve stability, strength, and durability of the connector unit as a whole. The base member includes a plurality of ribs forming wire-receiving channels and having at least one groove therebetween. The cap includes a conductive connecting plate configured to fit in the groove of the ribs of the base member. The connecting plate itself includes grooves configured to align with the channels of the ribs of the base member to thereby cut and remove insulation of at least one cable housed in the channels.Type: GrantFiled: November 3, 2006Date of Patent: September 11, 2007Assignee: 3M Innovative Properties CompanyInventors: Richard D. Twigg, Janette M. Moré, Thomas E. Umlauf
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Patent number: 7131856Abstract: An electrical connector includes a first jaw having a first set of insulation-piercing elements and a second jaw having a second set of insulation-piercing elements. The first and second sets of insulation-piercing elements are arranged such that at least one row of insulation-piercing elements from the first set of insulation-piercing elements is able to intermesh with at least one row of insulation-piercing elements from the second set of insulation-piercing elements when the first and second jaws are moved towards one another along a z-coordinate.Type: GrantFiled: March 4, 2005Date of Patent: November 7, 2006Assignee: 3M Innovative Properties CompanyInventors: Mark A. Hoisington, Brian C. Inberg, Charles Mitchell, Walter R. Romanko, Richard D. Twigg
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Patent number: 7104832Abstract: An electrical connector includes a conductive body having a cavity therein. The cavity is configured to receive an end of a cable. A clamping member is provided for making electrical connection with the end of the cable. A first electrical bus portion is on a first side of the body, and a second electrical bus portion is on a second side of the body.Type: GrantFiled: August 5, 2004Date of Patent: September 12, 2006Assignee: 3M Innovative Properties CompanyInventors: James M. Campbell, Mark A. Hoisington, Brian C. Inberg, Mark D. Matthies, Charles Mitchell, Walter R. Romanko, Richard D. Twigg
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Patent number: 7090544Abstract: A connector module includes a conductive body configured to receive an end of at least one cable. A clamping member is provided for clamping the end of the cable against an interior wall of the body. A female electrical bus portion extends into a side of the body and is configured to receive a male bus portion of a mating connector module.Type: GrantFiled: August 5, 2004Date of Patent: August 15, 2006Assignee: 3M Innovative Properties CompanyInventors: James M. Campbell, Mark A. Hoisington, Brian C. Inberg, Mark D. Matthies, Charles Mitchell, Walter R. Romanko, Richard D. Twigg
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Patent number: 5147213Abstract: A zero-insertion-pressure, pin-grid-array test socket is provided which includes a novel toggle mechanism for opening an array of contacts within the socket to accept a component for testing and closing the contacts after insertion of the component. The toggle mechanism comprises two links and a hinge pin disposed between and connecting the links. A handle is connected to one of the links and the hinge pin and movement of the handle causes separation of the links which in turn causes movement of a plate resulting in the opening or closing of the array of contacts.Type: GrantFiled: October 24, 1991Date of Patent: September 15, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: Ruben A. Funk, Richard D. Twigg