Patents by Inventor Joseph Mathieu
Joseph Mathieu 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: 11866558Abstract: A sheet comprising a plexifilamentary film-fibril network consisting essentially of high density polyethylene in an overlapping multi-directional configuration, the sheet, as-produced from a spin cell, having a normalized Frazier air permeability of between 0.002 and 0.2 m3/m2·minute at 50 gsm, a BET surface area of between 9 and 20 m2/gm, and a normalized hydrohead of between 150 and 250 cm at 50 gsm, wherein the plexifilamentary film-fibril network in an overlapping multi-directional configuration is flash-spun from a spin fluid comprising polymer and spin agent, the spin fluid temperature being 190° C. or greater, the spin agent comprising dichloromethane, the spin fluid having a polymer concentration of 12 to 14 weight percent.Type: GrantFiled: January 11, 2021Date of Patent: January 9, 2024Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: Jan Van Meerveld, Corneille Schmitz, Joseph Mathieu, Noel Stephen Brabbs, Orest Skoplyak, Christine Lemoine, Serge Rebouillat
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Publication number: 20210130559Abstract: A sheet comprising a plexifilamentary film-fibril network consisting essentially of high density polyethylene in an overlapping multi-directional configuration, the sheet, as-produced from a spin cell, having a normalized Frazier air permeability of between 0.002 and 0.2 m3/m2·minute at 50 gsm, a BET surface area of between 9 and 20 m2/gm, and a normalized hydrohead of between 150 and 250 cm at 50 gsm, wherein the plexifilamentary film-fibril network in an overlapping multi-directional configuration is flash-spun from a spin fluid comprising polymer and spin agent, the spin fluid temperature being 190° C. or greater, the spin agent comprising dichloromethane, the spin fluid having a polymer concentration of 12 to 14 weight percent.Type: ApplicationFiled: January 11, 2021Publication date: May 6, 2021Inventors: Jan Van Meerveld, Corneille Schmitz, Joseph Mathieu, Noel Stephen Brabbs, Orest Skoplyak, Christine Lemoine, Serge Rebouillat
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Patent number: 10920028Abstract: A sheet having a plexifilamentary structure with a normalized Frazier air permeability of between 0.002 and 0.2 (m3/m2·minute)@50 gsm, and a normalized hydrohead of between 150 and 250 centimeters@50 gsm.Type: GrantFiled: June 16, 2015Date of Patent: February 16, 2021Assignee: DUPONT SAFETY & CONSTRUCTION, INC.Inventors: Jan Van Meerveld, Corneille Schmitz, Joseph Mathieu, Noel Stephen Brabbs, Orest Skoplyak, Christine Lemoine, Serge Rebouillat
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Patent number: 10337123Abstract: A flash-spun plexifilamentary fiber strand having a BET surface area of less than 12 m2/g, a crush value of at least 0.9 mm/g wherein said fiber strand comprises predominantly fibers formed from polyethylene, said fibers having a total crystallinity index of less than 55%, said fiber strand having an elongation at break greater than 55% and sheets made thereof.Type: GrantFiled: January 27, 2016Date of Patent: July 2, 2019Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Jan Van Meerveld, Corneille Schmitz, Joseph Mathieu, Noel Stephen Brabbs, Orest Skoplyak, Christine Lemoine, Serge Rebouillat
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Patent number: 10329692Abstract: A flash-spun plexifilamentary fiber strand having a BET surface area of less than 12 m2/g, a crush value of at least 0.9 mm/g wherein said fiber strand comprises predominantly fibers formed from polyethylene, said fibers having a total crystallinity index of less than 55%, and sheets made thereof.Type: GrantFiled: July 10, 2015Date of Patent: June 25, 2019Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Jan Van Meerveld, Corneille Schmitz, Joseph Mathieu, Noel Stephen Brabbs, Orest Skoplyak, Christine Lemoine, Serge Rebouillat
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Publication number: 20180061008Abstract: An imaging system and method includes an imaging sensor, a processor in communication with the imaging sensor, a protective window or other exposed optical surface located between the imaging sensor and the scene to be captured by the imaging sensor, and a heater system in thermal communication with the window or other exposed optical surface. The imaging sensor configured to capture images of a scene, each of the captured images comprising a plurality of pixels. The processor is configured to receive information representing the images comprising the plurality of pixels captured by the imaging sensor, determine if rain splash artifacts or bright/dark non-uniformities are present, and remove artifacts in the information representing the images.Type: ApplicationFiled: August 31, 2016Publication date: March 1, 2018Inventors: Alexander L. Kormos, Louis Joseph Mathieu
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Publication number: 20170009381Abstract: A flash-spun plexifilamentary fiber strand having a BET surface area of less than 12 m2/g, a crush value of at least 0.9 mm/g wherein said fiber strand comprises predominantly fibers formed from polyethylene, said fibers having a total crystallinity index of less than 55%, and sheets made thereof.Type: ApplicationFiled: July 10, 2015Publication date: January 12, 2017Inventors: JAN VAN MEERVELD, CORNEILLE SCHMITZ, JOSEPH MATHIEU, NOEL STEPHEN BRABBS, OREST SKOPLYAK, CHRISTINE LEMOINE, SERGE REBOUILLAT
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Publication number: 20160138197Abstract: A flash-spun plexifilamentary fiber strand having a BET surface area of less than 12 m2/g, a crush value of at least 0.9 mm/g wherein said fiber strand comprises predominantly fibers formed from polyethylene, said fibers having a total crystallinity index of less than 55%, said fiber strand having an elongation at break greater than 55% and sheets made thereof.Type: ApplicationFiled: January 27, 2016Publication date: May 19, 2016Inventors: JAN VAN MEERVELD, CORNEILLE SCHMITZ, JOSEPH MATHIEU, NOEL STEPHEN BRABBS, OREST SKOPLYAK, CHRISTINE LEMOINE, SERGE REBOUILLAT
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Publication number: 20150368416Abstract: A sheet having a plexifilamentary structure with a normalized Frazier air permeability of between 0.002 and 0.2 (m3/m2·minute)@50 gsm, and a normalized hydrohead of between 150 and 250 centimeters@50 gsm.Type: ApplicationFiled: June 16, 2015Publication date: December 24, 2015Inventors: JAN VAN MEERVELD, Corneille Schmitz, Joseph Mathieu, Noel Stephen Brabbs, Orest Skoplyak, Christine Lemoine, Serge Rebouillat
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Patent number: 9192087Abstract: A hand-manipulated dirt tool, either a spade, shovel, post hole digger or the like, is driven and guided by the hands and feet of the human user, which tool has at least three, operative, outwardly-directed, side edges, preferably continuous, namely, a penetrating chamfer, a slicing edge and a chopping chamfer, preferably at at least two different angles and three sizes, either on one side or on both sides. Thus, at least two, outwardly-directed, side edges are chamfer, which can be parallel, with relatively small, entry surface in beginning edge of the tool and, if spade or a shovel, etc., a foot engaged, top portion is provided. Ideally the three side surfaces, as one progresses up the tool, can make forty-five, seventy-five and forty-five degrees to the rear and ideal “vertical” distances of one, nine and one inches, respectively, and exemplary degree, distance ranges and cross-sectional dimensions are also provided.Type: GrantFiled: August 3, 2009Date of Patent: November 24, 2015Assignee: Glorious Outdoors, LLCInventor: Daniel Joseph Mathieu
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Publication number: 20100051297Abstract: A hand-manipulated dirt tool, either a spade, shovel, post hole digger or the like, is driven and guided by the hands and feet of the human user, which tool has at least three (3), operative, outwardly-directed, side edges, preferably continuous, namely, a penetrating chamfer, a slicing edge and a chopping chamfer, preferably at at least two different angles and three sizes, either on one side or on both sides. Thus, at least two, outwardly-directed, side edges are chamfer, which can be parallel, with relatively small, entry surface in beginning edge of the tool and, if spade or a shovel, etc., a foot engaged, top portion is provided. Ideally the three side surfaces, as one progresses up the tool, can make forty-five, seventy-five and forty-five degrees to the rear and ideal “vertical” distances of one, nine and one inches, respectively, and exemplary degree, distance ranges and cross-sectional dimensions are also provided.Type: ApplicationFiled: August 3, 2009Publication date: March 4, 2010Inventor: Daniel Joseph Mathieu
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Patent number: 6657573Abstract: A phase-to-sinusoid-amplitude conversion system and method for use in, for example, direct digital frequency synthesizer applications. The system and method convert phase data to signal amplitude data using an approximation of the first quadrant of a sine function using a plurality of linear line segments of preferably equal length. Each segment is defined with a lower horizontal-axis bound; a lower vertical-axis bound; and a slope represented as a sum of a plurality of slope elements. Based on the approximation and for a given phase angle a set of values are evaluated, for each linear line segment, representing a product of (i) a horizontal displacement representing a difference between the prescribed phase angle and the lower horizontal-axis bound xi of a selected linear line segment where, for example, xi<X<xi+1 and (ii) each one of the slope elements of the selected linear line segment.Type: GrantFiled: August 14, 2002Date of Patent: December 2, 2003Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National DefenceInventors: Joseph Mathieu Pierre Langlois, Dhamin Al-Khalili
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Publication number: 20030062929Abstract: A phase-to-sinusoid-amplitude conversion system and method for use in, for example, direct digital frequency synthesizer applications. The system and method convert phase data to signal amplitude data using an approximation of the first quadrant of a sine function using a plurality of linear line segments of preferably equal length. Each segment is defined with a lower horizontal-axis bound; a lower vertical-axis bound; and a slope represented as a sum of a plurality of slope elements. Based on the approximation and for a given phase angle a set of values are evaluated, for each linear line segment, representing a product of (i) a horizontal displacement representing a difference between the prescribed phase angle and the lower horizontal-axis bound xi of a selected linear line segment where, for example, xi<X<xi+1 and (ii) each one of the slope elements of the selected linear line segment.Type: ApplicationFiled: August 14, 2002Publication date: April 3, 2003Applicant: HER MAJESTY THE QUEEN IN RIGHT OF CANADA...Inventors: Joseph Mathieu Pierre Langlois, Dhamin Al-Khalili
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Patent number: 5980255Abstract: A new motion cueing scheme has been found and adapted to an actual aircraft production seat to provide both transient and sustained heave acceleration cues. The mechanism is simple and compact enough to be easily implemented on G-seats. Changes in seat pan pitch angle synchronized with seat back vertical displacement result in a cue which feels realistic and reproduces consistently a number of the physiological and physical effects experienced by the pilot submitted to a real heave acceleration.Type: GrantFiled: March 16, 1998Date of Patent: November 9, 1999Assignee: Cae Electronics Ltd.Inventors: Louis-Joseph Mathieu, Pascal Le-Huu
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Patent number: D770249Type: GrantFiled: November 5, 2015Date of Patent: November 1, 2016Assignee: GLORIOUS OUTDOORS LLCInventor: Daniel Joseph Mathieu