Patents by Inventor Bruce GAMBRELL

Bruce GAMBRELL 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).

  • Additive for hydraulic binder useful to prevent the formation of rust-colored stains at the surface of hydraulic compositions
    Patent number: 11560337
    Abstract: A method for preventing formation of rust-colored stains on the surface of a hydraulic composition includes mixing the hydraulic composition with an additive for hydraulic binder including at least a dialkanolamine including from 2 to 8 carbon atoms, and at least a polyol preferably chosen from a diol, a triol, a tetraol and mixtures thereof. Other uses include a grinding aid for hydraulic binder precursor, and/or improving the compressive strength of a set hydraulic composition.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: January 24, 2023
    Assignee: CHRYSO
    Inventors: Bruce Gambrell, Brian D Breitzman
  • ADDITIVE FOR HYDRAULIC BINDER USEFUL TO PREVENT THE FORMATION OF RUST-COLORED STAINS AT THE SURFACE OF HYDRAULIC COMPOSITIONS
    Publication number: 20200239372
    Abstract: A method for preventing formation of rust-colored stains on the surface of a hydraulic composition includes mixing the hydraulic composition with an additive for hydraulic binder including at least a dialkanolamine including from 2 to 8 carbon atoms, and at least a polyol preferably chosen from a diol, a triol, a tetraol and mixtures thereof. Other uses include a grinding aid for hydraulic binder precursor, and/or improving the compressive strength of a set hydraulic composition.
    Type: Application
    Filed: July 30, 2018
    Publication date: July 30, 2020
    Inventors: Bruce GAMBRELL, Brian D BREITZMAN