Patents by Inventor David V. Mahoney
David V. Mahoney 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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Publication number: 20230256704Abstract: This disclosure describes co-extruded multilayer articles including at least one continuous layer and one discontinuous layer, as well as systems and techniques for the manufacture of co-extruded multilayer articles. For example, a co-extruded multilayer article is described that includes a body having a plurality of layers, where a first layer of the plurality of layers is formed from a first material and is continuous along a longitudinal axis of the body, and a second layer of the plurality of layers is formed from a second material and is discontinuously co-extruded along the longitudinal axis.Type: ApplicationFiled: February 17, 2023Publication date: August 17, 2023Inventors: Robert M. Biegler, Mark A. Hoisington, Craig R. Hoff, Anton F. Jachim, Jeffrey M. Maki, Derek W. Patzman, Thomas J. Blong, Jay M. Jennen, Erik A. Aho, David V. Mahoney
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Patent number: 11618237Abstract: This disclosure describes co-extruded multilayer articles including at least one continuous layer and one discontinuous layer, as well as systems and techniques for the manufacture of co-extruded multilayer articles. For example, a co-extruded multilayer article is described that includes a body having a plurality of layers, where a first layer of the plurality of layers is formed from a first material and is continuous along a longitudinal axis of the body, and a second layer of the plurality of layers is formed from a second material and is discontinuously co-extruded along the longitudinal axis.Type: GrantFiled: March 5, 2020Date of Patent: April 4, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Robert M. Biegler, Mark A. Hoisington, Craig R. Hoff, Anton F. Jachim, Jeffrey M. Maki, Derek W. Patzman, Thomas J. Blong, Jay M. Jennen, Erik A. Aho, David V. Mahoney
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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: 20200282691Abstract: This disclosure describes co-extruded multilayer articles including at least one continuous layer and one discontinuous layer, as well as systems and techniques for the manufacture of co-extruded multilayer articles. For example, a co-extruded multilayer article is described that includes a body having a plurality of layers, where a first layer of the plurality of layers is formed from a first material and is continuous along a longitudinal axis of the body, and a second layer of the plurality of layers is formed from a second material and is discontinuously co-extruded along the longitudinal axis.Type: ApplicationFiled: March 5, 2020Publication date: September 10, 2020Inventors: Robert M. Biegler, Mark A. Hoisington, Craig R. Hoff, Anton F. Jachim, Jeffrey M. Maki, Derek W. Patzman, Thomas J. Blong, Jay M. Jennen, Erik A. Aho, David V. Mahoney
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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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Patent number: 10458860Abstract: Provided is a system for directly sensing, measuring, or monitoring the temperature of an electrical conductor (31) of a power cable (10). A temperature sensitive capacitor (21C) is disposed in direct thermal contact with the electrical conductor (31). The temperature sensitive capacitor (21C) includes a dielectric material that has a dielectric constant variable with the temperature of the electrical conductor (31). The temperature of the electrical conductor (31) can be sensed, measured, or monitored by measuring the capacitance of the temperature sensitive capacitor (21C).Type: GrantFiled: October 30, 2014Date of Patent: October 29, 2019Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Zhiguo Wen, Jaewon Kim, Justin M. Johnson, Xeutao Yu, David V. Mahoney, Michael D. Benson, Christopher D. Sebesta, Myungchan Kang
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Publication number: 20180262073Abstract: An electrical insulating material is described herein. The electrical insulating material comprises an insulating core layer and at least one cured epoxy layer coated on a first major surface of the insulating core layer. In some aspects, the exemplary electrical insulating material can further include a second cured epoxy layer coated on a second major surface of the insulating core layer.Type: ApplicationFiled: March 9, 2018Publication date: September 13, 2018Inventors: Shuji Takagi, Sybil Z. Wong, Robert L. Lambert, Pradip K. Bandyopadhyay, David V. Mahoney
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Publication number: 20170315000Abstract: Provided is a system for directly sensing, measuring, or monitoring the temperature of an electrical conductor (31) of a power cable (10). A temperature sensitive capacitor (21C) is disposed in direct thermal contact with the electrical conductor (31). The temperature sensitive capacitor (21C) includes a dielectric material that has a dielectric constant variable with the temperature of the electrical conductor (31). The temperature of the electrical conductor (31) can be sensed, measured, or monitored by measuring the capacitance of the temperature sensitive capacitor (21C).Type: ApplicationFiled: October 30, 2014Publication date: November 2, 2017Inventors: Zhiguo Wen, Jaewon Kim, Justin M. Johnson, Xeutao Yu, David V. Mahoney, Michael D. Benson, Christopher D. Sebesta, Myungchan Kang
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Patent number: 9742180Abstract: A terminal connection device comprises a contiguous body disposed onto an inner conductor. The inner conductor includes a first end mateable with a power cable connector and a second end. The body comprises a multilayer structure having an inner conductive or semiconductive layer disposed over at least a portion of the power cable connector, an insulating layer and an outer conductive or semiconductive layer. The body surrounds the first end of the inner conductor and extending towards the second end of the inner conductor. The body can also include an electrically isolated section of conductive or semiconductive material. The terminal connection device can be a fully integrated structure, having a pre-installed connection interface, or the terminal connection device can be configured as an adapter which can be mounted in the field to a connection interface.Type: GrantFiled: June 19, 2014Date of Patent: August 22, 2017Assignee: 3M Innovative Properties CompanyInventors: Carl J. Wentzel, Christopher D. Sebesta, Jaylon D. Loyd, David V. Mahoney, Michael D. Benson, Levent Biyikli, Jens Weichold, Mark Gravermann, Giuliano Bolcato
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Publication number: 20160343465Abstract: An article comprises an inorganic filler, fully hydrolyzed polyvinyl alcohol fibers, a polymer binder, and high surface area fibers. The article can be formed as an electrically insulating paper for electrical equipment, such as a liquid filled transformer, which can thereby be substantially cellulose free.Type: ApplicationFiled: January 27, 2015Publication date: November 24, 2016Inventors: Robert H. Turpin, Rhesa M. Browning, David V. Mahoney, Mitchell T. Huang, David S. Stankes, Martin H. Fox
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Publication number: 20160134094Abstract: A terminal connection device comprises a contiguous body disposed onto an inner conductor. The inner conductor includes a first end mateable with a power cable connector and a second end. The body comprises a multilayer structure having an inner conductive or semiconductive layer disposed over at least a portion of the power cable connector, an insulating layer and an outer conductive or semiconductive layer. The body surrounds the first end of the inner conductor and extending towards the second end of the inner conductor. The body can also include an electrically isolated section of conductive or semiconductive material. The terminal connection device can be a fully integrated structure, having a pre-installed connection interface, or the terminal connection device can be configured as an adapter which can be mounted in the field to a connection interface.Type: ApplicationFiled: June 19, 2014Publication date: May 12, 2016Inventors: Carl J. Wentzel, Christopher D. Sebesta, Jaylon D. Loyd, David V. Mahoney, Michael D. Benson, Levent Biyikli, Jens Weichold, Mark Gravermann, Giuliano Bolcato
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Publication number: 20160056307Abstract: The inventors of the present disclosure recognized that elimination or reduction of the silver paste and/or silver busbars on the front and/or rear surfaces of solar cells and solar modules would advantageously lower the total cost of the solar cell and/or solar module. The inventors of the present disclosure recognized that the silver paste on the front and rear surface of solar cells or solar modules can be eliminated or the amount of silver paste reduced by replacing the silver busbars with a solderable tape including a conductive metal foil and a nonconductive adhesive.Type: ApplicationFiled: March 5, 2014Publication date: February 25, 2016Inventors: NELSON T. ROTTO, GREGORY L. BLUEM, MARK J. VOTAVA, GUOPING MAO, MARK K. NESTEGARD, DAVID V. MAHONEY, THOMAS A. STROZ, DMITRIY SALNIKOV
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Patent number: 8790553Abstract: The present invention relates to a composition suitable for use in electrical equipment containing a dielectric fluid including an oil component, the oil component including one or both of crambe oil and high erucic acid rapeseed oil and one or both of esterified crambe oil and esterified high erucic acid rapeseed oil.Type: GrantFiled: July 2, 2010Date of Patent: July 29, 2014Assignee: 3M Innovative Properties CompanyInventors: Jose Humberto Lopes, David V. Mahoney, Rafael Garcia-Ramirez
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Publication number: 20120139681Abstract: The present invention relates to a composition suitable for use in electrical equipment containing a dielectric fluid including an oil component, the oil component including one or both of crambe oil and high erucic acid rapeseed oil and one or both of esterified crambe oil and esterified high erucic acid rapeseed oil.Type: ApplicationFiled: July 2, 2010Publication date: June 7, 2012Inventors: Jose Humberto Lopes, David V. Mahoney, Rafael Garcia-Ramirez
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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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Publication number: 20070285218Abstract: Presence of an occupant in a vehicle is sensed. Furthermore, at least one occupant exposure condition in the vehicle is sensed. If there is an occupant in the vehicle, a signal is sent as a function of the at least one occupant exposure condition in the vehicle.Type: ApplicationFiled: June 9, 2006Publication date: December 13, 2007Inventors: Douglas D. Fletcher, Kyle D. Lasenby, David V. Mahoney, Patrick C. Howard
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Patent number: 6906534Abstract: A breathable moisture barrier suitable for use in enclosing flexible electrodes, foam substrate and other electrical components within a substantially liquid impervious environment without significantly impairing the ability of electrical sensors to accurately measure temperature and humidity variations within the surrounding environment such as the seating compartment of an automobile. It is further disclosed that a breathable polymeric material having a sufficiently high moisture vapor transmission rate (MVTR) will permit water vapor to be transported across the barrier and quickly reach equilibrium within the enclosed seat sensor mat assembly and to allow the humidity compensation of the occupant sensing system to function correctly.Type: GrantFiled: July 16, 2002Date of Patent: June 14, 2005Assignee: 3M Innovative Properties CompanyInventors: Mark A. Hoisington, David V. Mahoney