Patents by Inventor David Royston Hughes
David Royston Hughes 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: 20240207888Abstract: According to some embodiments, a system and method for dispensing a floor coating in a specified ratio of multiple components is disclosed. The system and method may set and maintain a desired ratio of the multiple components by controlling, with a controller, a drive rate of respective pumps configured for propelling the components from a reservoir to a mixer or a dispenser. The controller may be responsive to at least one of a measured actual drive rate, an environmental condition, an actual usage of each component, and an operational parameter of the system, for adjusting a drive rate of the respective pumps to compensate for discrepancies that may affect the ratio of the multiple components.Type: ApplicationFiled: March 7, 2024Publication date: June 27, 2024Inventors: Kyle Sanford Smith, Murty Venkata Bhamidipati, David Royston Hughes, Robert S. Smith, Peter V. Ferris, Daniel R. Allen, Charles R. Sperry, David M. Kroll
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Patent number: 11951505Abstract: According to some embodiments, a system and method for dispensing a floor coating in a specified ratio of multiple components is disclosed. The system and method may set and maintain a desired ratio of the multiple components by controlling, with a controller, a drive rate of respective pumps configured for propelling the components from a reservoir to a mixer or a dispenser. The controller may be responsive to at least one of a measured actual drive rate, an environmental condition, an actual usage of each component, and an operational parameter of the system, for adjusting a drive rate of the respective pumps to compensate for discrepancies that may affect the ratio of the multiple components.Type: GrantFiled: August 23, 2019Date of Patent: April 9, 2024Assignee: SWIMC LLCInventors: Kyle Sanford Smith, Murty Venkata Bhamidipati, David Royston Hughes, Robert S. Smith, Peter V. Ferris, Daniel R. Allen, Charles R. Sperry, David M. Kroll
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Publication number: 20220056706Abstract: Removable flooring, which can be peeled from a flooring substrate is prepared by applying to an adhesive layer attached to the surface of a flooring substrate a particulate material followed by application of a cross-linkable or curable polymer composition, or by applying to the adhesive layer a slurry comprising the particulate material and the cross-linkable or curable polymer composition. The cross-linkable or curable polymer composition surrounds the particulate material and adheres to the adhesive layer to provide, upon cure, a coherent, flooring layer comprising the adhesive, particular material and cured polymer which can be peeled from the underlying flooring substrate as a single substrate.Type: ApplicationFiled: March 23, 2019Publication date: February 24, 2022Applicant: Dur-A-Flex, Inc.Inventors: Ming Zhao, Kyle Sanford Smith, Murty Venkata Bhamidipati, Michael Joseph Schatz, David Royston Hughes
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Publication number: 20210331199Abstract: According to some embodiments, a system and method for dispensing a floor coating in a specified ratio of multiple components is disclosed. The system and method may set and maintain a desired ratio of the multiple components by controlling, with a controller, a drive rate of respective pumps configured for propelling the components from a reservoir to a mixer or a dispenser. The controller may be responsive to at least one of a measured actual drive rate, an environmental condition, an actual usage of each component, and an operational parameter of the system, for adjusting a drive rate of the respective pumps to compensate for discrepancies that may affect the ratio of the multiple components.Type: ApplicationFiled: August 23, 2019Publication date: October 28, 2021Applicant: Dur-A-Flex, Inc.Inventors: Kyle Sanford Smith, Murty Venkata Bhamidipati, David Royston Hughes, Robert S. Smith, Peter V. Ferris, Daniel R. Allen, Charles R. Sperry, David M. Kroll
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Publication number: 20190292794Abstract: Removable flooring, which can be peeled from a flooring substrate is prepared by applying to an adhesive layer attached to the surface of a flooring substrate a particulate material followed by application of a cross-linkable or curable polymer composition, or by applying to the adhesive layer a slurry comprising the particulate material and the cross-linkable or curable polymer composition. The cross-linkable or curable polymer composition surrounds the particulate material and adheres to the adhesive layer to provide, upon cure, a coherent, flooring layer comprising the adhesive, particular material and cured polymer which can be peeled from the underlying flooring substrate as a single substrate.Type: ApplicationFiled: March 23, 2019Publication date: September 26, 2019Inventors: Ming Zhao, Kyle Sanford Smith, Murty Venkata Bhamidipati, Michael Joseph Schatz, David Royston Hughes
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Patent number: 10252290Abstract: A low odor, fast curing composition coating composition with improved safety and mechanical properties, which cures readily under ambient conditions comprises a) a reactive polymer, oligomer or prepolymer having pendant acrylate or methacrylate groups, b) low odor acrylate or methacrylate monomers, c) an acrylate or methacrylate crosslinker, d) an isocyanate crosslinker, e) a thermal or photo active initiator, and optionally a reactive diluent and/or bead polymer. The composition is cured through multiple pathways, e.g., peroxide initiated radical curing and urethane step chain polymerization. Flooring and other construction materials coated with the composition are also provided.Type: GrantFiled: July 24, 2016Date of Patent: April 9, 2019Assignee: Dur-A-Flex Inc.Inventors: Ming Zhao, David Royston Hughes, Murty Venkata Bhamidipati, Kyle Sanford Smith, Ronald Joseph Phillips
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Publication number: 20180354230Abstract: A removable multi-layered flooring system comprising a 1) a foundation or primer layer applied to an underlying flooring surface, 2) a peelable support comprising a supporting material and a cross-linkable or curable polymer composition that penetrates the supporting layer to form a unified, cohesive support that can be peeled from the foundation/primer layer in its entirety, and 3) one or more upper polymer layers applied to the top of the peelable support. The multilayered system can be applied to the surface of a sub-flooring, e.g., concrete, and remains secured until such time as a new flooring is desired, at which time the peelable support and upper polymer layers are removed, e.g., by peeling them from the foundation layer.Type: ApplicationFiled: June 12, 2018Publication date: December 13, 2018Inventors: Ming Zhao, Kyle Sanford Smith, Murty Venkata Bhamidipati, Michael Joseph Schatz, David Royston Hughes
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Patent number: 10035924Abstract: Waterborne polyurethane coating compositions comprising a polyol, an isocyanate crosslinker, and a small amount of thermoplastic microfibers, e.g., polyolefin microfibers, having a length of less than 1 mm, exhibit a much less sag, roller lines and other surface imperfections upon application to a substrate, in particular a vertical substrate such as a wall, than analogous water borne polyurethane compositions that lack the microfibers.Type: GrantFiled: December 1, 2016Date of Patent: July 31, 2018Assignee: Dur-A-Flex, Inc.Inventors: Ming Zhao, Murty Venkata Bhamidipati, Clay Carrington, David Royston Hughes
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Publication number: 20170158884Abstract: Waterborne polyurethane coating compositions comprising a polyol, an isocyanate crosslinker, and a small amount of thermoplastic microfibers, e.g., polyolefin microfibers, having a length of less than 1 mm, exhibit a much less sag, roller lines and other surface imperfections upon application to a substrate, in particular a vertical substrate such as a wall, than analogous water borne polyurethane compositions that lack the microfibers.Type: ApplicationFiled: December 1, 2016Publication date: June 8, 2017Inventors: Ming Zhao, Murty Venkata Bhamidipati, Clay Carrington, David Royston Hughes
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Patent number: 9657191Abstract: A UV or thermally curable, low odor, liquid coating composition, which readily applied at room temperature without heating comprising: a) a reactive acrylic based polymer comprising pendant acrylate or methacrylate groups; b) reactive unsaturated monomers, typically acrylic or methacrylic monomers, often polyfunctional monomers; c) a thermal or UV activated radical initiator; and in many embodiments, d) an inert and non-polar wax or viscous oil, e.g., a paraffinic material, and e) optionally a tertiary amine, for example, a tertiary amine accelerator used with a thermally activated radical initiator. Also provided are substrates coated with the composition of the invention, for example, flooring coated with the inventive composition.Type: GrantFiled: December 29, 2014Date of Patent: May 23, 2017Assignee: Dur-A-Flex, Inc.Inventors: Ming Zhao, David Royston Hughes, Murty Venkata Bhamidipati
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Publication number: 20170029653Abstract: A low odor, fast curing composition coating composition with improved safety and mechanical properties, which cures readily under ambient conditions comprises a) a reactive polymer, oligomer or prepolymer having pendant acrylate or methacrylate groups, b) low odor acrylate or methacrylate monomers, c) an acrylate or methacrylate crosslinker, d) an isocyanate crosslinker, e) a thermal or photo active initiator, and optionally a reactive diluent and/or bead polymer. The composition is cured through multiple pathways, e.g., peroxide initiated radical curing and urethane step chain polymerization. Flooring and other construction materials coated with the composition are also provided.Type: ApplicationFiled: July 24, 2016Publication date: February 2, 2017Inventors: Ming Zhao, David Royston Hughes, Murty Venkata Bhamidipati, Kyle Sanford Smith, Ronald Joseph Phillips
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Publication number: 20150191622Abstract: A UV or thermally curable, low odor, liquid coating composition, which readily applied at room temperature without heating comprising: a) a reactive acrylic based polymer comprising pendant acrylate or methacrylate groups; b) reactive unsaturated monomers, typically acrylic or methacrylic monomers, often polyfunctional monomers; c) a thermal or UV activated radical initiator; and in many embodiments, d) an inert and non-polar wax or viscous oil, e.g., a paraffinic material, and e) optionally a tertiary amine, for example, a tertiary amine accelerator used with a thermally activated radical initiator. Also provided are substrates coated with the composition of the invention, for example, flooring coated with the inventive composition.Type: ApplicationFiled: December 29, 2014Publication date: July 9, 2015Applicant: Dur-A-Flex, Inc.Inventors: Ming Zhao, David Royston Hughes, Murty Venkata Bhamidipati