Patents by Inventor HAMOUD M. ASSEHDI AL HAJRI

HAMOUD M. ASSEHDI AL HAJRI 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: 9296913
    Abstract: The recycled crumb rubber coating is a corrosion-proof coating for piping and the like. The coating is formed from recycled crumb rubber mixed with an epoxy resin and a hardener. Crumb rubber is first mixed with a liquid epoxy resin. An agent for reducing the viscosity of the liquid epoxy resin may also be added. A hardener is then added to this mixture. Finally, powdered crumb rubber is added and mixed to form the recycled crumb rubber coating. The total crumb rubber forms about 23-24 wt % of the coating, the balance being epoxy. The epoxy has liquid epoxy resin and a hardener in a ratio of about 2:1 by weight. The epoxy may also include a viscosity reducing agent of about 1% of the total weight of the liquid resin and the hardener. The crumb rubber may be a blend of powdered crumb rubber and mesh crumb rubber.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: March 29, 2016
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Nasser Al-Aqeeli, Hamoud M. Assehdi Al-Hajri
  • Publication number: 20140316031
    Abstract: The recycled crumb rubber coating is a corrosion-proof coating for piping and the like. The coating is formed from recycled crumb rubber mixed with an epoxy resin and a hardener. Crumb rubber is first mixed with a liquid epoxy resin. An agent for reducing the viscosity of the liquid epoxy resin may also be added. A hardener is then added to this mixture. Finally, powdered crumb rubber is added and mixed to form the recycled crumb rubber coating. The total crumb rubber forms about 23-24 wt % of the coating, the balance being epoxy. The epoxy has liquid epoxy resin and a hardener in a ratio of about 2:1 by weight. The epoxy may also include a viscosity reducing agent of about 1% of the total weight of the liquid resin and the hardener. The crumb rubber may be a blend of powdered crumb rubber and mesh crumb rubber.
    Type: Application
    Filed: July 7, 2014
    Publication date: October 23, 2014
    Inventors: NASSER AL-AQEELI, HAMOUD M. ASSEHDI AL-HAJRI
  • Patent number: 8853303
    Abstract: The recycled crumb rubber coating is a corrosion-proof coating for piping and the like. The coating is formed from recycled crumb rubber mixed with an epoxy resin and a hardener. Crumb rubber is first mixed with a liquid epoxy resin. An agent for reducing the viscosity of the liquid epoxy resin may also be added. A hardener is then added to this mixture. Finally, powdered crumb rubber is added and mixed to form the recycled crumb rubber coating. The total crumb rubber forms about 23 wt % of the coating. If no viscosity reducing agent is added, then the liquid epoxy resin forms about 51.6 wt % of the coating. If the viscosity reducing agent is added, then the liquid epoxy resin forms about 50.1 wt % of the coating, and the viscosity reducing agent forms about 1.5 wt % of the coating. The hardener forms about 25.4 wt % of the coating.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: October 7, 2014
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Nasser Al-Aqeeli, Hamoud M. Assehdi Al Hajri
  • Publication number: 20130345339
    Abstract: The recycled crumb rubber coating is a corrosion-proof coating for piping and the like. The coating is formed from recycled crumb rubber mixed with an epoxy resin and a hardener. Crumb rubber is first mixed with a liquid epoxy resin. An agent for reducing the viscosity of the liquid epoxy resin may also be added. A hardener is then added to this mixture. Finally, powdered crumb rubber is added and mixed to form the recycled crumb rubber coating. The total crumb rubber forms about 23 wt % of the coating. If no viscosity reducing agent is added, then the liquid epoxy resin forms about 51.6 wt % of the coating. If the viscosity reducing agent is added, then the liquid epoxy resin forms about 50.1 wt % of the coating, and the viscosity reducing agent forms about 1.5 wt % of the coating. The hardener forms about 25.4 wt % of the coating.
    Type: Application
    Filed: June 25, 2012
    Publication date: December 26, 2013
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: NASSER AL-AQEELI, HAMOUD M. ASSEHDI AL HAJRI