Patents by Inventor Walter B. Davis
Walter B. Davis 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: 8679386Abstract: A method to produce thin-layer lignocellulosic composites, such as wood-based doorskins, that exhibit substantial resistance to moisture is disclosed. In an embodiment, the method includes the steps of forming a mixture including a refined lignocellulosic fiber, wax, and an organic isocyanate resin. The mixture is initially pressed to form a loose mat. Subsequently, the mat is pressed between two dies at an elevated temperature and pressure to further reduce the thickness of the mat and to promote the interaction of the resin with the lignocellulosic fibers. In an embodiment, a release agent is included as part of the fiber mixture, or sprayed onto the surface of the mat. The thin-layer lignocellulosic composites of the present invention exhibit strong surface strength, high adhesiveness, and a 50% reduction in linear expansion and thickness swelling upon exposure to a high moisture environment as compared to thin-layer composites that do not include the isocyanate resin.Type: GrantFiled: March 15, 2011Date of Patent: March 25, 2014Assignee: JELD-WEN, inc.Inventors: Randy Jon Clark, Walter B. Davis, Jonathan Phillip Alexander
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Publication number: 20110165375Abstract: A method to produce thin-layer lignocellulosic composites, such as wood-based doorskins, that exhibit substantial resistance to moisture is disclosed. In an embodiment, the method includes the steps of forming a mixture including a refined lignocellulosic fiber, wax, and an organic isocyanate resin. The mixture is initially pressed to form a loose mat. Subsequently, the mat is pressed between two dies at an elevated temperature and pressure to further reduce the thickness of the mat and to promote the interaction of the resin with the lignocellulosic fibers. In an embodiment, a release agent is included as part of the fiber mixture, or sprayed onto the surface of the mat. The thin-layer lignocellulosic composites of the present invention exhibit strong surface strength, high adhesiveness, and a 50% reduction in linear expansion and thickness swelling upon exposure to a high moisture environment as compared to thin-layer composites that do not include the isocyanate resin.Type: ApplicationFiled: March 15, 2011Publication date: July 7, 2011Applicant: JELD-WEN, INC.Inventors: Randy Jon Clark, Walter B. Davis, Jonathan Phillip Alexander
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Patent number: 7919186Abstract: A method to produce thin-layer lignocellulosic composites, such as wood-based doorskins, that exhibit substantial resistance to moisture is disclosed. In an embodiment, the method includes the steps of forming a mixture including a refined lignocellulosic fiber, wax, and an organic isocyanate resin. The mixture is initially pressed to form a loose mat. Subsequently, the mat is pressed between two dies at an elevated temperature and pressure to further reduce the thickness of the mat and to promote the interaction of the resin with the lignocellulosic fibers. In an embodiment, a release agent is included as part of the fiber mixture, or sprayed onto the surface of the mat. The thin-layer lignocellulosic composites of the present invention exhibit strong surface strength, high adhesiveness, and a 50% reduction in linear expansion and thickness swelling upon exposure to a high moisture environment as compared to thin-layer composites that do not include the isocyanate resin.Type: GrantFiled: May 16, 2008Date of Patent: April 5, 2011Assignee: JELD-WEN, inc.Inventors: Randy Jon Clark, Walter B. Davis, Jonathan Philip Alexander
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Publication number: 20090004315Abstract: Systems and methods for making a material composition are disclosed. The method includes mixing a thermoset polymer, a petroleum distillate, a release agent, and a catalyst to form an admixture. A cellulosic material is mixed with the admixture to form a generally homogenous furnish. The system includes a mixing chamber, a feeding chamber, and a die. The die includes a pressing chamber, which has a volume formed by first and second platens. The platens are in facing opposition to one another and have a length extending continuously from an entrance to an exit of the die. The platens have a plurality of orifices and heating elements disposed along the length. The platens are disposed in first and second positions. The first position forms a first volume and the second position forms a second volume.Type: ApplicationFiled: August 26, 2008Publication date: January 1, 2009Applicant: JELD-WEN, inc.Inventors: Sean Robert Broker, Jonathan Philip Alexander, David J. Bleha, Randy Jon Clark, Walter B. Davis
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Publication number: 20090001628Abstract: Systems and methods for making a material composition are disclosed. The method includes mixing a thermoset polymer, a petroleum distillate, a release agent, and a catalyst to form an admixture. A cellulosic material is mixed with the admixture to form a generally homogenous furnish. The system includes a mixing chamber, a feeding chamber, and a die. The die includes a pressing chamber, which has a volume formed by first and second platens. The platens are in facing opposition to one another and have a length extending continuously from an entrance to an exit of the die. The platens have a plurality of orifices and heating elements disposed along the length. The platens are disposed in first and second positions. The first position forms a first volume and the second position forms a second volume.Type: ApplicationFiled: August 26, 2008Publication date: January 1, 2009Applicant: JELD-WEN, inc.Inventors: Sean Robert Broker, Jonathan Philip Alexander, David J. Bleha, Randy Jon Clark, Walter B. Davis
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Publication number: 20080286581Abstract: A method to produce thin-layer lignocellulosic composites, such as wood-based doorskins, that exhibit substantial resistance to moisture is disclosed. In an embodiment, the method includes the steps of forming a mixture including a refined lignocellulosic fiber, wax, and an organic isocyanate resin. The mixture is initially pressed to form a loose mat. Subsequently, the mat is pressed between two dies at an elevated temperature and pressure to further reduce the thickness of the mat and to promote the interaction of the resin with the lignocellulosic fibers. In an embodiment, a release agent is included as part of the fiber mixture, or sprayed onto the surface of the mat. The thin-layer lignocellulosic composites of the present invention exhibit strong surface strength, high adhesiveness, and a 50% reduction in linear expansion and thickness swelling upon exposure to a high moisture environment as compared to thin-layer composites that do not include the isocyanate resin.Type: ApplicationFiled: May 16, 2008Publication date: November 20, 2008Applicant: JELD-WEN, inc.Inventors: Randy Jon Clark, Walter B. Davis, Jonathan Philip Alexander
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Patent number: 7449229Abstract: Systems and methods for making a material composition are disclosed. The method includes mixing a thermoset polymer, a petroleum distillate, a release agent, and a catalyst to form an admixture. A cellulosic material is mixed with the admixture to form a generally homogenous furnish. The system includes a mixing chamber, a feeding chamber, and a die. The die includes a pressing chamber, which has a volume formed by first and second platens. The platens are in facing opposition to one another and have a length extending continuously from an entrance to an exit of the die. The platens have a plurality of orifices and heating elements disposed along the length. The platens are disposed in first and second positions. The first position forms a first volume and the second position forms a second volume.Type: GrantFiled: November 1, 2002Date of Patent: November 11, 2008Assignee: Jeld-Wen, inc.Inventors: Sean Robert Broker, Jonathan Philip Alexander, David J. Bleha, Randy Jon Clark, Walter B. Davis
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Patent number: 7399438Abstract: A method to produce thin-layer lignocellulosic composites, such as wood-based doorskins, that exhibit substantial resistance to moisture is disclosed. In an embodiment, the method includes the steps of forming a mixture including a refined lignocellulosic fiber, wax, and an organic isocyanate resin. The mixture is initially pressed to form a loose mat. Subsequently, the mat is pressed between two dies at an elevated temperature and pressure to further reduce the thickness of the mat and to promote the interaction of the resin with the lignocellulosic fibers. In an embodiment, a release agent is included as part of the fiber mixture, or sprayed onto the surface of the mat. The thin-layer lignocellulosic composites of the present invention exhibit strong surface strength, high adhesiveness, and a 50% reduction in linear expansion and thickness swelling upon exposure to a high moisture environment as compared to thin-layer composites that do not include the isocyanate resin.Type: GrantFiled: February 24, 2004Date of Patent: July 15, 2008Assignee: JELD-WEN, inc.Inventors: Randy Jon Clark, Walter B. Davis, Jonathan Philip Alexander
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Publication number: 20040229010Abstract: A method to produce thin-layer lignocellulosic composites, such as wood-based doorskins, that exhibit substantial resistance to moisture is disclosed. In an embodiment, the method includes the steps of forming a mixture including a refined lignocellulosic fiber, wax, and an organic isocyanate resin. The mixture is initially pressed to form a loose mat. Subsequently, the mat is pressed between two dies at an elevated temperature and pressure to further reduce the thickness of the mat and to promote the interaction of the resin with the lignocellulosic fibers. In an embodiment, a release agent is included as part of the fiber mixture, or sprayed onto the surface of the mat. The thin-layer lignocellulosic composites of the present invention exhibit strong surface strength, high adhesiveness, and a 50% reduction in linear expansion and thickness swelling upon exposure to a high moisture environment as compared to thin-layer composites that do not include the isocyanate resin.Type: ApplicationFiled: February 24, 2004Publication date: November 18, 2004Inventors: Randy Jon Clark, Walter B. Davis, Jonathan Philip Alexander
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Publication number: 20040084799Abstract: Systems and methods for making a material composition are disclosed. The method includes mixing a thermoset polymer, a petroleum distillate, a release agent, and a catalyst to form an admixture. A cellulosic material is mixed with the admixture to form a generally homogenous furnish. The system includes a mixing chamber, a feeding chamber, and a die. The die includes a pressing chamber, which has a volume formed by first and second platens. The platens are in facing opposition to one another and have a length extending continuously from an entrance to an exit of the die. The platens have a plurality of orifices and heating elements disposed along the length. The platens are disposed in first and second positions. The first position forms a first volume and the second position forms a second volume.Type: ApplicationFiled: November 1, 2002Publication date: May 6, 2004Inventors: Sean Robert Broker, Jonathan Philip Alexander, David J. Bleha, Randy Jon Clark, Walter B. Davis
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Patent number: 5158772Abstract: Topical compositions for application to the skin comprising a topically active agent which may be a cosmetic agent or a therapeutic agent, and a small, but carrier effective amount of a microbial polysaccharide polymer gel which is a beta-1,3 glucan-type polysaccharide.Type: GrantFiled: September 23, 1991Date of Patent: October 27, 1992Inventor: Walter B. Davis
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Patent number: 4992265Abstract: A hair care composition comprising at least 1,000 IUg.sup.-1 of an ester of retinol in a topically acceptable carrier is useful for increasing the diameter of growing hair.Type: GrantFiled: February 23, 1989Date of Patent: February 12, 1991Assignee: Beecham Group p.l.c.Inventors: Walter B. Davis, Margaret D. Batt, Benjamin D. Ridge