Patents by Inventor Willer De Oliveira
Willer De Oliveira 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: 8894321Abstract: The disclosure is directed to a warm mix asphalt comprising a hydrated lime slurry additive, methods of producing the same, methods of producing an asphalt pavement and methods of paving a surface.Type: GrantFiled: July 12, 2011Date of Patent: November 25, 2014Assignee: Western Emulsions, Inc.Inventors: Iain Jack, Willer de Oliveira
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Publication number: 20130336720Abstract: The disclosure is directed to a warm mix asphalt comprising a hydrated lime slurry additive, methods of producing the same, methods of producing an asphalt pavement and methods of paving a surface.Type: ApplicationFiled: July 12, 2011Publication date: December 19, 2013Applicant: Western Emulsions, Inc.Inventors: Iain Jack, Willer de Oliveira
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Patent number: 8123824Abstract: An artificial firelog according to the present invention may comprise as constituents a combustible cellulosic or fiber material, a non-absorbent combustible oil- and/or fat-retaining material, and a combustible binder/fuel or wax in appropriate proportions. A combustible binding agent may be also be added as an additional constituent material to allow a further reduction of the combustible wax component. Certain naturally occurring agricultural by products and synthetic filter materials contain oils and/or fats that provide increased BTU value beyond the cellulosic or mineral components of the material. When these oil- and/or fat-retaining materials added to a blend of firelog material, the non-absorbent properties and additional BTU content of these alternative raw materials allow the amount of higher BTU wax material to be reduced without a dramatic reduction in fuel content in the finished mixture.Type: GrantFiled: December 18, 2007Date of Patent: February 28, 2012Assignee: Duraflame, Inc.Inventors: Alexander U. Cavero, Jr., Gary W. Leach, Willer de Oliveira, Alan Zachary
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Patent number: 8007550Abstract: An artificial firelog of the invention includes as constituents (a) a combustible cellulosic material and (b) a combustible non-petroleum wax, wherein the relative proportions of the constituents are, by weight, from about 30% to about 70% of (a) and from about 30% to about 70% of (b) for 100 parts of (a) and (b). In one form of the invention, the combustible non-petroleum wax constituent may include one or more combustible materials derived from plant oils, vegetable oils, animal oils, fats, rosin, pitch, waxy materials and combinations thereof. In another form of the invention, the combustible non-petroleum wax constituent may include a formulated blend of individual non-petroleum wax components. In yet another form of the invention a combustible binding agent can be added to the blend of materials resulting in reduction of the portion of the more costly combustible wax component.Type: GrantFiled: December 18, 2007Date of Patent: August 30, 2011Assignee: Duraflame, Inc.Inventors: Willer de Oliveira, Gary W. Leach, Alan Zachary
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Publication number: 20080196301Abstract: An artificial firelog of the invention includes as constituents (a) a combustible cellulosic material and (b) a combustible non-petroleum wax, wherein the relative proportions of the constituents are, by weight, from about 30% to about 70% of (a) and from about 30% to about 70% of (b) for 100 parts of (a) and (b). In one form of the invention, the combustible non-petroleum wax constituent may include one or more combustible materials derived from plant oils, vegetable oils, animal oils, fats, rosin, pitch, waxy materials and combinations thereof. In another form of the invention, the combustible non-petroleum wax constituent may include a formulated blend of individual non-petroleum wax components. In yet another form of the invention a combustible binding agent can be added to the blend of materials resulting in reduction of the portion of the more costly combustible wax component.Type: ApplicationFiled: December 18, 2007Publication date: August 21, 2008Applicant: Duraflame, Inc.Inventors: Willer de Oliveira, Gary W. Leach, Alan Zachary
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Publication number: 20080196302Abstract: An artificial firelog according to the present invention may comprise as constituents a combustible cellulosic or fiber material, a non-absorbent combustible oil- and/or fat-retaining material, and a combustible binder/fuel or wax in appropriate proportions. A combustible binding agent may be also be added as an additional constituent material to allow a further reduction of the combustible wax component. Certain naturally occurring agricultural by products and synthetic filter materials contain oils and/or fats that provide increased BTU value beyond the cellulosic or mineral components of the material. When these oil- and/or fat-retaining materials added to a blend of firelog material, the non-absorbent properties and additional BTU content of these alternative raw materials allow the amount of higher BTU wax material to be reduced without a dramatic reduction in fuel content in the finished mixture.Type: ApplicationFiled: December 18, 2007Publication date: August 21, 2008Applicant: Duraflame, Inc.Inventors: Alexander U. Cavero, Gary W. Leach, Willer de Oliveira, Alan Zachary
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Patent number: 5102992Abstract: A method of producing prepolymeric materials from lignin is disclosed. The method uses lignin which has been hydroxyalkyl modified, such that the lignin is substantially non-phenolic and solvent soluble and/or liquid. The modified lignin is reacted with materials which yield prepolymers which may be polymerized according to known methods to produce useful polymers.Type: GrantFiled: August 20, 1990Date of Patent: April 7, 1992Assignees: Center for Innovative Technology, Virginia Polytechnic Institute and State UniversityInventors: Wolfgang G. Glasser, Willer De Oliveira, Stephen S. Kelley, Li S. Nieh
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Patent number: 5066790Abstract: A method of producing prepolymeric materials from lignin is disclosed. The method uses lignin which has been hydroxyalkyl modified, such that the lignin is substantially non-phenolic and solvent soluble and/or liquid. The modified lignin is reacted with materials which yield prepolymers which may be polymerized according to known methods to produce useful polymers.Type: GrantFiled: January 4, 1990Date of Patent: November 19, 1991Assignees: Center for Innovative Technology, Virginia Polytechnic Institute and State UniversityInventors: Wolfgang G. Glasser, Willer De Oliveira, Stephen S. Kelley, Li S. Nieh
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Patent number: 4918167Abstract: A method of producing prepolymeric materials from lignin is disclosed. The method uses lignin which has been hydroxyalkyl modified, such that the lignin is substantially non-phenolic and solvent soluble and/or liquid. The modified lignin is reacted with materials which yield prepolymers which may be polymerized according to known methods to produce useful polymers.Type: GrantFiled: April 19, 1988Date of Patent: April 17, 1990Assignee: Center for Innovative TechnologyInventors: Wolfgang G. Glasser, Willer De Oliveira, Stephen S. Kelley, Li S. Nieh