Patents by Inventor Gerald D. Boydston

Gerald D. Boydston 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).

  • Patent number: 11268277
    Abstract: This disclosure relates to using polyester films on building boards to enable improved surface coatings. The polyester film is preferably applied to a glass mat via an adhesive to form a laminate. This laminate is then bonded to the exterior surface of a gypsum board. The polyester film is advantageous because it allows for exterior surface coatings to be applied. In one embodiment, an exterior acrylic coating is applied to the polyester film. Boards constructed in accordance with this disclosure allow for exterior finishings to be achieved without the need for excessive finishing materials or steps.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: March 8, 2022
    Assignee: Saint Gobain Placo SAS
    Inventors: Gerald D. Boydston, Bryan J. Wiltzius, Choung-Houng Lai, Michael J. Lemberger
  • Patent number: 11161783
    Abstract: A composition and process for manufacture thereof used in hybrid inventive building materials comprising Syngenite (K2Ca(SO4)2.H2O) and Struvite-K (KMgPO4.6H2O). Starting constituents include magnesium oxide (MgO), monopotassium phosphate (MKP) and stucco (calcium sulfate hemihydrate), mixed in predetermined ratios, cause reactions to proceed through multiple phases, which reactions variously are proceeding simultaneously and in parallel. Variables, e.g., water temperature, pH, mixing times and rates, have been found to affect resultant reaction products. Preferred ratios of chemical constituents and manufacturing parameters, including predetermined weight percent and specified ratios of Struvite-K and Syngenite are provided for building products used for specified purposes. Reactions are optimized in stoichiometry and additives to reduce the combined heat of formation to non-destructive levels. Various additives help control and guide reactions.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: November 2, 2021
    Assignee: CertainTeed Gypsum, Inc.
    Inventors: Robert J. Hauber, Gerald D. Boydston, Nathan Frailey, Severine Lamberet, Gaurav V. Pattarkine, Isaac K. Cherian, Sergio Centurione, Anirban Ghosh
  • Patent number: 10767368
    Abstract: Disclosed are composite building boards and associated manufacturing methods. The composite boards may include, for example, one or more slurry layers with embedded fibrous mats. An exterior plastic coating is mechanically adhered to the underlying slurry layer. The plastic layer chemically bonds and cross-links with polymer additives within the slurry layer. The result is an integrated polymer matrix with greatly improved durability and surface strength.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: September 8, 2020
    Assignee: CertainTeed Gypsum, Inc.
    Inventors: Robert J. Hauber, Gerald D. Boydston
  • Patent number: 10589443
    Abstract: A method for producing building boards includes unwinding a facing sheet from a supply roll of facing sheet over top of a forming table that includes a series of nozzles. A volume of cementitious material is deposited from a slurry mixing device to the unwound facing sheet. Pressurized air is supplied from an air source to the series of nozzles, whereby a cushion of air is created between the unwound facing sheet and the forming table.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: March 17, 2020
    Assignee: SAINT-GOBAIN PLACO SAS
    Inventors: Robert J. Hauber, Gerald D. Boydston, Nathan Gregory Frailey, Michael P. Fahey, Bryan J. Wiltzius, John M. Bridenstine
  • Publication number: 20200079691
    Abstract: A composition and process for manufacture thereof used in hybrid inventive building materials comprising Syngenite (K2Ca(SO4)2.H2O) and Struvite-K (KMgPO4.6H2O). Starting constituents include magnesium oxide (MgO), monopotassium phosphate (MKP) and stucco (calcium sulfate hemihydrate), mixed in predetermined ratios, cause reactions to proceed through multiple phases, which reactions variously are proceeding simultaneously and in parallel. Variables, e.g., water temperature, pH, mixing times and rates, have been found to affect resultant reaction products. Preferred ratios of chemical constituents and manufacturing parameters, including predetermined weight percent and specified ratios of Struvite-K and Syngenite are provided for building products used for specified purposes. Reactions are optimized in stoichiometry and additives to reduce the combined heat of formation to non-destructive levels. Various additives help control and guide reactions.
    Type: Application
    Filed: November 18, 2019
    Publication date: March 12, 2020
    Inventors: Robert J. Hauber, Gerald D. Boydston, Nathan Frailey, Severine Lamberet, Gaurav V. Pattarkine, Isaac K. Cherian, Sergio Centurione, Anirban Ghosh
  • Patent number: 10479728
    Abstract: A composition and process for manufacture thereof used in hybrid inventive building materials comprising Syngenite (K2Ca(SO4)2.H2O) and Struvite-K (KMgPO4.6H2O). Starting constituents include magnesium oxide (MgO), monopotassium phosphate (MKP) and stucco (calcium sulfate hemihydrate), mixed in predetermined ratios, cause reactions to proceed through multiple phases, which reactions variously are proceeding simultaneously and in parallel. Variables, e.g., water temperature, pH, mixing times and rates, have been found to affect resultant reaction products. Preferred ratios of chemical constituents and manufacturing parameters, including predetermined weight percent and specified ratios of Struvite-K and Syngenite are provided for building products used for specified purposes. Reactions are optimized in stoichiometry and additives to reduce the combined heat of formation to non-destructive levels. Various additives help control and guide reactions.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: November 19, 2019
    Assignee: CertainTeed Gypsum, Inc.
    Inventors: Robert J. Hauber, Gerald D. Boydston, Nathan Frailey, Severine Lamberet, Gaurav V. Pattarkine, Isaac K. Cherian, Sergio Centurione, Anirban Ghosh
  • Patent number: 10472284
    Abstract: A composition and process for the manufacture thereof for use in a hybrid building material comprising at least in part Syngenite (K2Ca(SO4)2.H2O) and Struvite-K (KMgPO4ยท6H2O). Specified constituents, including magnesium oxide (MgO), monopotassium phosphate (MKP) and stucco (calcium sulfate hemihydrate) are mixed in predetermined ratios and the reaction proceeds through multiple phases reactions which at times are proceeding simultaneously and in parallel and reaction may even compete with each other for reagents if the Struvite-K reaction is not buffered to slow down the reaction rate). A number of variable factors, such as water temperature, pH mixing times and rates, have been found to affect resultant reaction products. Preferred ratios of chemical constituents and manufacturing parameters, including predetermined and specified ratios of Struvite-K and Syngenite may be provided for specified purposes, optimized in respect of stoichiometry to reduce the combined heat of formation to non-destructive levels.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: November 12, 2019
    Assignee: CertainTeed Gypsum, Inc.
    Inventors: Robert J. Hauber, Gerald D. Boydston, Nathan Frailey, Severine Lamberet, Gaurav V. Pattarkine, Isaac K. Cherian, Sergio Centurione, Anirban Ghosh
  • Patent number: 10457027
    Abstract: Disclosed are building board manufacturing techniques that minimize the build-up of slurry on associated forming equipment and also produce panels with enhanced physical properties. The methods involve applying a dissolvable film laminate to one or more fiber mats at the outset of the forming process. In the undissolved state, the film acts as a containment envelope for the gypsum slurry and any free floating glass fibers. During subsequent curing, the film is dissolved by vaporized water. In its dissolved state, the film is liquefied and coats the fibers of the underlying mat. This results in a building board with improved physical properties.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: October 29, 2019
    Assignee: CertainTeed Gypsum, Inc.
    Inventors: Robert J. Hauber, Gerald D. Boydston
  • Publication number: 20190277029
    Abstract: This disclosure relates to using polyester films on building boards to enable improved surface coatings. The polyester film is preferably applied to a glass mat via an adhesive to form a laminate. This laminate is then bonded to the exterior surface of a gypsum board. The polyester film is advantageous because it allows for exterior surface coatings to be applied. In one embodiment, an exterior acrylic coating is applied to the polyester film. Boards constructed in accordance with this disclosure allow for exterior finishings to be achieved without the need for excessive finishing materials or steps.
    Type: Application
    Filed: March 19, 2019
    Publication date: September 12, 2019
    Inventors: Gerald D. Boydston, Bryan J. Wiltzius, Choung-Houng Lai, Michael J. Lemberger
  • Patent number: 10233641
    Abstract: This disclosure relates to using polyester films on building boards to enable improved surface coatings. The polyester film is preferably applied to a glass mat via an adhesive to form a laminate. This laminate is then bonded to the exterior surface of a gypsum board. The polyester film is advantageous because it allows for exterior surface coatings to be applied. In one embodiment, an exterior acrylic coating is applied to the polyester film. Boards constructed in accordance with this disclosure allow for exterior finishings to be achieved without the need for excessive finishing materials or steps.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: March 19, 2019
    Assignee: Saint-Gobain Placo SAS
    Inventors: Gerald D. Boydston, Bryan J. Wiltzius, Choung-Houng Lai, Michael J. Lemberger
  • Publication number: 20180187416
    Abstract: Disclosed are composite building boards and associated manufacturing methods. The composite boards may include, for example, one or more slurry layers with embedded fibrous mats. An exterior plastic coating is mechanically adhered to the underlying slurry layer. The plastic layer chemically bonds and cross-links with polymer additives within the slurry layer. The result is an integrated polymer matrix with greatly improved durability and surface strength.
    Type: Application
    Filed: December 29, 2017
    Publication date: July 5, 2018
    Inventors: Robert J. Hauber, Gerald D. Boydston
  • Publication number: 20180079106
    Abstract: Discloses is an apparatus and method for utilizing air along a building board forming line for the purpose of reducing friction between the board and the underlying forming tables. The device employs a series of air nozzles that are formed within the face of the forming tables. An air source delivers pressurized air to the nozzles. As completed or partially completed boards travel along the forming tables, an air cushion is created to reduce the friction between the board and the underlying table. The pressurized air can also be used to transport the boards and promote the even distribution of slurry during formation. The various components of the present invention, and the manner in which they interrelate, are described in greater detail hereinafter.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 22, 2018
    Inventors: Robert J. Hauber, Gerald D. Boydston, Nathan Gregory Frailey, Michael P. Fahey, Bryan J. Wiltzius, John M. Bridenstine
  • Patent number: 9885179
    Abstract: Disclosed are composite building boards and associated manufacturing methods. The composite boards may include, for example, one or more slurry layers with embedded fibrous mats. An exterior plastic coating is mechanically adhered to the underlying slurry layer. The plastic layer chemically bonds and cross-links with polymer additives within the slurry layer. The result is an integrated polymer matrix with greatly improved durability and surface strength.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: February 6, 2018
    Assignee: CertainTeed Gypsum, Inc.
    Inventors: Robert J. Hauber, Gerald D. Boydston
  • Publication number: 20180010338
    Abstract: This disclosure relates to using polyester films on building boards to enable improved surface coatings. The polyester film is preferably applied to a glass mat via an adhesive to form a laminate. This laminate is then bonded to the exterior surface of a gypsum board. The polyester film is advantageous because it allows for exterior surface coatings to be applied. In one embodiment, an exterior acrylic coating is applied to the polyester film. Boards constructed in accordance with this disclosure allow for exterior finishings to be achieved without the need for excessive finishing materials or steps.
    Type: Application
    Filed: September 22, 2017
    Publication date: January 11, 2018
    Inventors: Gerald D. Boydston, Bryan J. Wiltzius, Choung-Houng Lai, Michael J. Lemberger
  • Patent number: 9834929
    Abstract: This disclosure relates to using polyester films on building boards to enable improved surface coatings. The polyester film is preferably applied to a glass mat via an adhesive to form a laminate. This laminate is then bonded to the exterior surface of a gypsum board. The polyester film is advantageous because it allows for exterior surface coatings to be applied. In one embodiment, an exterior acrylic coating is applied to the polyester film. Boards constructed in accordance with this disclosure allow for exterior finishings to be achieved without the need for excessive finishing materials or steps.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: December 5, 2017
    Assignee: Saint-Gobain Placo SAS
    Inventors: Gerald D. Boydston, Bryan J. Wiltzius, Choung-Houng Lai, Michael J. Lemberger
  • Publication number: 20170008804
    Abstract: A composition and process for the manufacture thereof for use in a hybrid building material comprising at least in part Syngenite (K2Ca(SO4)2.H2O) and Struvite-K (KMgPO4.6H2O). Specified constituents, including magnesium oxide (MgO), monopotassium phosphate (MKP) and stucco (calcium sulfate hemihydrate) are mixed in predetermined ratios and the reaction proceeds through multiple phases reactions which at times are proceeding simultaneously and in parallel and reaction may even compete with each other for reagents if the Struvite-K reaction is not buffered to slow down the reaction rate). A number of variable factors, such as water temperature, pH mixing times and rates, have been found to affect resultant reaction products. Preferred ratios of chemical constituents and manufacturing parameters, including predetermined and specified ratios of Struvite-K and Syngenite may be provided for specified purposes, optimized in respect of stoichiometry to reduce the combined heat of formation to non-destructive levels.
    Type: Application
    Filed: August 17, 2016
    Publication date: January 12, 2017
    Applicant: CertainTeed Gypsum, Inc.
    Inventors: Robert J. Hauber, Gerald D. Boydston, Nathan Frailey, Severine Lamberet, Gaurav V. Pattarkine, Isaac K. Cherian, Sergio Centurione, Anirban Ghosh
  • Patent number: 9486980
    Abstract: Disclosed are building board manufacturing techniques that minimize the build-up of slurry on associated forming equipment and also produce panels with enhanced physical properties. The methods involve applying a dissolvable film laminate to one or more fiber mats at the outset of the forming process. In the un-dissolved state, the film acts as a containment envelope for the gypsum slurry and any free floating glass fibers. During subsequent curing, the film is dissolved by vaporized water. In its dissolved state, the film is liquefied and coats the fibers of the underlying mat. This results in a building board with improved physical properties.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: November 8, 2016
    Assignee: CertainTeed Gypsum, Inc.
    Inventors: Robert J. Hauber, Gerald D. Boydston
  • Patent number: 9475730
    Abstract: Disclosed is a system and method for constructing fibrous mats. In accordance with the disclosure, continuous lengths of filament are pre-coated with a liquefied thermoplastic. The pre-coated filaments are then laid down upon a belt to form a fibrous mat. The filaments can be laid down in continuous lengths or they can be chopped into discontinuous lengths. The filaments are heated after they have been laid down in order to re-liquefy the thermoplastic and facilitate bonding between intersecting fibers. The disclosure further relates to a system and method for incorporating constructed fibrous mats into a composite building board.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: October 25, 2016
    Assignee: CertainTeed Gypsum, Inc.
    Inventors: Robert J. Hauber, Gerald D. Boydston
  • Publication number: 20160273220
    Abstract: Disclosed are composite building boards and associated manufacturing methods. The composite boards may include, for example, one or more slurry layers with embedded fibrous mats. An exterior plastic coating is mechanically adhered to the underlying slurry layer. The plastic layer chemically bonds and cross-links with polymer additives within the slurry layer. The result is an integrated polymer matrix with greatly improved durability and surface strength.
    Type: Application
    Filed: February 16, 2016
    Publication date: September 22, 2016
    Inventors: Robert J. Hauber, Gerald D. Boydston
  • Patent number: 9422193
    Abstract: A composition and process for the manufacture thereof for use in a hybrid building material comprising at least in part Syngenite (K2Ca(SO4)2.H2O) and Struvite-K (KMgPO4.6H2O). Specified constituents, including magnesium oxide (MgO), monopotassium phosphate (MKP) and stucco (calcium sulfate hemihydrate) are mixed in predetermined ratios and the reaction proceeds through multiple phases reactions which at times are proceeding simultaneously and in parallel and reaction may even compete with each other for reagents if the Struvite-K reaction is not buffered to slow down the reaction rate). A number of variable factors, such as water temperature, pH mixing times and rates, have been found to affect resultant reaction products. Preferred ratios of chemical constituents and manufacturing parameters, including predetermined and specified ratios of Struvite-K and Syngenite may be provided for specified purposes, optimized in respect of stoichiometry to reduce the combined heat of formation to non-destructive levels.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: August 23, 2016
    Assignee: CertainTeed Gypsum, Inc.
    Inventors: Robert J. Hauber, Gerald D. Boydston, Nathan Frailey, Severine Lamberet, Gaurav V. Pattarkine, Isaac K. Cherian, Sergio Centurione, Anirban Ghosh