Patents by Inventor Juan Carlos RUIZ CASTAÑEDA

Juan Carlos RUIZ CASTAÑEDA 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).

  • Method for making a lightweight gypsum composition with internally generated foam and products made from same
    Patent number: 11414352
    Abstract: Method of making foamed gypsum slurry having 15 to 90 volume percent gas bubbles including: passing first slurry including water and on dry basis 50 to 98 wt. % calcium sulfate hemihydrate, 1 to 50 wt. % calcium carbonate, and 0.1 to 10 wt. % cellulose thickener via a first hose to a Wye connector conduit first inlet opening at Rate C and passing alum solution via a second hose to a second inlet opening of the conduit at Rate D to create combined mixed stream passing from the conduit to a static mixer for mixing for Time 3 to activate at least a portion of the calcium carbonate and alum to generate CO2 and create the foamed gypsum slurry; transferring the slurry from the mixer to a cavity between two wall boards via a third hose. Allowing the slurry in the cavity to expand, harden and dry.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: August 16, 2022
    Assignee: UNITED STATES GYPSUM COMPANY
    Inventors: David D. Pelot, Samar Emami, Robert H. Negri, Juan Carlos Ruiz Castaneda, Christopher R. Nelson, John J. Roxburgh, Edgar R. De La Rosa Cruz, Jorge A. Garcia Torres, Miguel Gama Goicochea, Antonio Contreras, Juan Huitzil
  • Method for making a lightweight gypsum composition with internally generated foam and products made from same
    Patent number: 10737981
    Abstract: A gypsum-based composition of calcium sulfate hemihydrate with (a) alum and calcium carbonate and/or (b) zeolite and sodium percarbonate for making foamed gypsum slurry. A method to make foamed gypsum slurry from the composition. A method to make foamed gypsum product from the composition. A cavity wall having a cavity filled with the foamed gypsum product.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: August 11, 2020
    Assignee: UNITED STATES GYPSUM COMPANY
    Inventors: Samar Emami, Salvatore C. Immordino, Robert H. Negri, David D. Pelot, Jeffrey F. Grussing, Juan Carlos Ruiz Castañeda, Christopher R. Nelson, John Jason Roxburgh, Srinivas Veeramasuneni
  • METHOD FOR MAKING A LIGHTWEIGHT GYPSUM COMPOSITION WITH INTERNALLY GENERATED FOAM AND PRODUCTS MADE FROM SAME
    Publication number: 20190315659
    Abstract: Method of making foamed gypsum slurry having 15 to 90 volume percent gas bubbles including: passing first slurry including water and on dry basis 50 to 98 wt. % calcium sulfate hemihydrate, 1 to 50 wt. % calcium carbonate, and 0.1 to 10 wt. % cellulose thickener via a first hose to a Wye connector conduit first inlet opening at Rate C and passing alum solution via a second hose to a second inlet opening of the conduit at Rate D to create combined mixed stream passing from the conduit to a static mixer for mixing for Time 3 to activate at least a portion of the calcium carbonate and alum to generate CO2 and create the foamed gypsum slurry; transferring the slurry from the mixer to a cavity between two wall boards via a third hose. Allowing the slurry in the cavity to expand, harden and dry.
    Type: Application
    Filed: March 5, 2019
    Publication date: October 17, 2019
    Inventors: David D. PELOT, Samar EMAMI, Robert H. NEGRI, Juan Carlos Ruiz Castaneda, Christopher R. NELSON, John J. ROXBURGH, Edgar R. DE LA ROSA CRUZ, Jorge A. GARCIA TORRES, Miguel Gama Goicochea, Antonio CONTRERAS, Juan HUITZIL
  • METHOD FOR MAKING A LIGHTWEIGHT GYPSUM COMPOSITION WITH INTERNALLY GENERATED FOAM AND PRODUCTS MADE FROM SAME
    Publication number: 20180099908
    Abstract: A gypsum-based composition of calcium sulfate hemihydrate with (a) alum and calcium carbonate and/or (b) zeolite and sodium percarbonate for making foamed gypsum slurry. A method to make foamed gypsum slurry from the composition. A method to make foamed gypsum product from the composition. A cavity wall having a cavity filled with the foamed gypsum product.
    Type: Application
    Filed: September 21, 2017
    Publication date: April 12, 2018
    Applicant: UNITED STATES GYPSUM COMPANY
    Inventors: Samar EMAMI, Salvatore C. IMMORDINO, Robert H. NEGRI, David D. PELOT, Jeffrey F. GRUSSING, Juan Carlos RUIZ CASTAÑEDA, Christopher R. NELSON, John Jason ROXBURGH, Srinivas VEERAMASUNENI