Patents by Inventor Paul S. Knutson
Paul S. Knutson 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: 7182826Abstract: A power transmission belt is disclosed in which the exterior of the overcord section is generally flat in contour and bears an outer seamless tubular knit textile material adhered to an adjacent rubber layer material interposed between the exterior belt back surface and a strain-resisting tensile section. The belt is adapted to be run against backside idlers or tensioners with minimized noise generation. A simplified process including use of a tubular knit stretched over and applied to the building drum is disclosed, thereby eliminating conventional calendaring and Bannering operations.Type: GrantFiled: November 14, 2002Date of Patent: February 27, 2007Assignee: The Gates CorporationInventor: Paul S. Knutson
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Patent number: 6945892Abstract: A power transmission belt is disclosed in which the exterior of the overcord section is generally flat in contour and bears an outer seamless tubular knit textile material adhered to an adjacent rubber layer material interposed between the exterior belt back surface and a strain-resisting tensile section. The belt is adapted to be run against backside idlers or tensioners with minimized noise generation. A simplified process including use of a tubular knit stretched over and applied to the building drum is disclosed, thereby eliminating conventional calendaring and Bannering operations.Type: GrantFiled: August 11, 2003Date of Patent: September 20, 2005Assignee: The Gates CorporationInventor: Paul S. Knutson
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Patent number: 6945891Abstract: A power transmission belt, and more particularly a toothed power transmission belt, comprising a longitudinally extending tensile member composed of one or more carbon fiber cords, wherein the belt exhibits belt growth of not more than 0.1% based on its original length after 48 hours under High Temperature Belt Growth Analysis performed at 100° C., a method for producing such belts exhibiting reduced belt growth, and a method for reducing the angular vibration of a camshaft in relation to a crankshaft in an internal combustion engine wherein the camshaft is driven by a timing belt.Type: GrantFiled: December 16, 2002Date of Patent: September 20, 2005Assignee: The Gates CorporationInventor: Paul S. Knutson
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Patent number: 6872159Abstract: A power transmission belt, and more particularly a toothed power transmission belt, comprising a longitudinally extending tensile member composed of one or more carbon fiber cords, wherein the cords are treated with an elastomer latex coating, and that the cord treatment composition further comprises a resorcinol-formaldehyde reaction product, and that such cord treatment composition possesses an elastic modulus at a temperature of 20° C. to be within the range of from about 1.0×107 dynes/cm2 to about 5.0×108 dynes/cm2, and at a temperature of 100° C. to be within the range of from about 5.0×108 dynes/cm2 to about 4.0×108 dynes/cm2.Type: GrantFiled: December 15, 2003Date of Patent: March 29, 2005Assignee: The Gates CorporationInventor: Paul S. Knutson
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Patent number: 6863761Abstract: A power transmission belt using an open mesh textile material in the belt overcord which is stabilized with a material promoting permeation of an underlying gum rubber layer through interstices in the textile material during vulcanization of the belt. The coefficient of friction of the backside of the belt is sufficient to enable the belt to drive backside pulleys, tensioners and other mechanical devices.Type: GrantFiled: November 19, 2002Date of Patent: March 8, 2005Assignee: The Gates CorporationInventor: Paul S. Knutson
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Publication number: 20040132571Abstract: A power transmission belt, and more particularly a toothed power transmission belt, comprising a longitudinally extending tensile member composed of one or more carbon fiber cords, wherein the belt exhibits belt growth of not more than 0.1% based on its original length after 48 hours under High Temperature Belt Growth Analysis performed at 100° C., and a method for producing such belts exhibiting reduced belt growth.Type: ApplicationFiled: December 15, 2003Publication date: July 8, 2004Inventor: Paul S. Knutson
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Publication number: 20040048709Abstract: A power transmission belt is disclosed in which the exterior of the overcord section is generally flat in contour and bears an outer seamless tubular knit textile material adhered to an adjacent rubber layer material interposed between the exterior belt back surface and a strain-resisting tensile section. The belt is adapted to be run against backside idlers or tensioners with minimized noise generation. A simplified process including use of a tubular knit stretched over and applied to the building drum is disclosed, thereby eliminating conventional calendaring and Bannering operations.Type: ApplicationFiled: August 11, 2003Publication date: March 11, 2004Inventor: Paul S. Knutson
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Patent number: 6695733Abstract: A power transmission belt, and more particularly a toothed power transmission belt, comprising a longitudinally extending tensile member composed of one or more carbon fiber cords, wherein the belt exhibits belt growth of not more than 0.1% based on its original length after 48 hours under High Temperature Belt Growth Analysis performed at 100° C., and a method for producing such belts exhibiting reduced belt growth.Type: GrantFiled: January 14, 2002Date of Patent: February 24, 2004Assignee: The Gates CorporationInventor: Paul S. Knutson
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Publication number: 20040033857Abstract: A belt having an elastomeric body and tensile cord embedded therein. The tensile cord comprises a polyamide 4.6 non-twisted strand inner core with an outer sheath of polyester strands wound about the inner core. The modulus of the belt is in the range of approximately 1200 N/mm to 4000 N/mm.Type: ApplicationFiled: August 13, 2002Publication date: February 19, 2004Inventors: Susan Welk, Paul S. Knutson
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Publication number: 20030203781Abstract: A belt having an elastomeric body and tensile cord embedded therein. The tensile cord comprises a polyamide 4.6 core with an outer sheath of polyester staple fibers. The modulus of the belt is in the range of approximately 1200 N/mm to 4500 N/mm.Type: ApplicationFiled: April 25, 2002Publication date: October 30, 2003Inventors: Susan Welk, Paul S. Knutson
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Patent number: 6632151Abstract: A power transmission belt is disclosed in which the exterior of the overcord section is generally flat in contour and bears an outer seamless tubular knit textile material adhered to an adjacent rubber layer material interposed between the exterior belt back surface and a strain-resisting tensile section. The belt is adapted to be run against backside idlers or tensioners with minimized noise generation. A simplified process including use of a tubular knit stretched over and applied to the building drum is disclosed, thereby eliminating conventional calendaring and Bannering operations.Type: GrantFiled: November 9, 2000Date of Patent: October 14, 2003Assignee: The Gates CorporationInventor: Paul S. Knutson
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Publication number: 20030130077Abstract: A power transmission belt, and more particularly a toothed power transmission belt, comprising a longitudinally extending tensile member composed of one or more carbon fiber cords, wherein the belt exhibits belt growth of not more than 0.1% based on its original length after 48 hours under High Temperature Belt Growth Analysis performed at 100° C., a method for producing such belts exhibiting reduced belt growth, and a method for reducing the angular vibration of a camshaft in relation to a crankshaft in an internal combustion engine wherein the camshaft is driven by a timing belt.Type: ApplicationFiled: December 16, 2002Publication date: July 10, 2003Inventor: Paul S. Knutson
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Patent number: 6572505Abstract: A power transmission belt using an open mesh textile material in the belt overcord which is stabilized with a material promoting permeation of an underlying gum rubber layer through interstices in the textile material during vulcanization of the belt. The coefficient of friction of the backside of the belt is sufficient to enable the belt to drive backside pulleys, tensioners and other mechanical devices.Type: GrantFiled: November 9, 2000Date of Patent: June 3, 2003Assignee: The Gates CorporationInventor: Paul S. Knutson
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Publication number: 20030078125Abstract: A power transmission belt using an open mesh textile material in the belt overcord which is stabilized with a material promoting permeation of an underlying gum rubber layer through interstices in the textile material during vulcanization of the belt. The coefficient of friction of the backside of the belt is sufficient to enable the belt to drive backside pulleys, tensioners and other mechanical devices.Type: ApplicationFiled: November 19, 2002Publication date: April 24, 2003Inventor: Paul S. Knutson
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Publication number: 20030073533Abstract: A power transmission belt is disclosed in which the exterior of the overcord section is generally flat in contour and bears an outer seamless tubular knit textile material adhered to an adjacent rubber layer material interposed between the exterior belt back surface and a strain-resisting tensile section. The belt is adapted to be run against backside idlers or tensioners with minimized noise generation. A simplified process including use of a tubular knit stretched over and applied to the building drum is disclosed, thereby eliminating conventional calendaring and Bannering operations.Type: ApplicationFiled: November 14, 2002Publication date: April 17, 2003Inventor: Paul S. Knutson
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Publication number: 20030024230Abstract: The invention comprises a multi-ribbed belt having a tensile cord. The tensile cord having areas of opposite twist along a length of a single cord. In particular, a tensile cord comprises S twist sections and Z twist sections. An S twist section is separated from a Z twist section by a node, thereby creating alternate S twist and Z twist sections along a length of a tensile cord. Therefore, the inventive belt comprises a belt having a tensile cord having a random distribution of S twist sections and Z twist sections along a length of the belt as well as across a width of the belt. This significantly reduces tracking force while using only a single cord in belt construction.Type: ApplicationFiled: July 26, 2002Publication date: February 6, 2003Inventor: Paul S. Knutson
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Publication number: 20020132692Abstract: A power transmission belt, and more particularly a toothed power transmission belt, comprising a longitudinally extending tensile member composed of one or more carbon fiber cords, wherein the belt exhibits belt growth of not more than 0.1% based on its original length after 48 hours under High Temperature Belt Growth Analysis performed at 100° C., and a method for producing such belts exhibiting reduced belt growth.Type: ApplicationFiled: January 14, 2002Publication date: September 19, 2002Inventor: Paul S. Knutson
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Patent number: 5807194Abstract: A synchronous power transmission belt with a belt body of cast urethane belt material, belt teeth formed of the body, a wear-resistant fabric reinforcement disposed along peripheral surfaces of the belt teeth, and a tensile member of helically spiraled cord embedded in the belt body and of a yarn of carbon fiber.Type: GrantFiled: October 31, 1996Date of Patent: September 15, 1998Assignee: The Gates CorporationInventors: Paul S. Knutson, Walter L. Dodson