Patents by Inventor Clifford A. Hay

Clifford A. Hay 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).

  • Insert and method for reducing fouling in a process stream
    Patent number: 8286695
    Abstract: An insert for reducing sulfidation corrosion and depositional fouling is disclosed. The insert is formed from a corrosion and fouling resistant steel composition containing a Cr-enriched layer and having a surface roughness of less than 40 micro inches (1.1 ?m).
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: October 16, 2012
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Mark A. Greaney, James E. Feather, Thomas Bruno, ChangMin Chun, Clifford Hay
  • Back flushable strainer device
    Patent number: 8002983
    Abstract: A strainer device for a fluid flow circuit removes debris and solid particles from the fluid flow to prevent plugging and reduce fouling of the system. The assembly includes a chamber that can be hydrocyclonic, a collection area, a screen assembly and a distributor that allows selective connection to a flushing fluid. The fluid flows through the chamber past the strainer device, with large particles collecting in the collection area under the influence of gravity and smaller solid particles being collected in the screen assembly. Particles can be flushed from the system by selectively activating the distributor to back flush the screen assembly and sweep the collection area free of solid particles without disassembling the system.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: August 23, 2011
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Amar S. Wanni, Thomas M. Rudy, Claude A. Lafleur, Clifford A. Hay, Tomas R. Melli
  • Back flushable strainer device
    Publication number: 20080251467
    Abstract: A strainer device for a fluid flow circuit removes debris and solid particles from the fluid flow to prevent plugging and reduce fouling of the system. The assembly includes a chamber that can be hydrocyclonic, a collection area, a screen assembly and a distributor that allows selective connection to a flushing fluid. The fluid flows through the chamber past the strainer device, with large particles collecting in the collection area under the influence of gravity and smaller solid particles being collected in the screen assembly. Particles can be flushed from the system by selectively activating the distributor to back flush the screen assembly and sweep the collection area free of solid particles without disassembling the system.
    Type: Application
    Filed: April 10, 2007
    Publication date: October 16, 2008
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Amar S. Wanni, Thomas M. Rudy, Claude A. Lafleur, Clifford A. Hay, Tomas R. Melli
  • Insert and method for reducing fouling in a process stream
    Publication number: 20070187078
    Abstract: An insert for reducing sulfidation corrosion and depositional fouling is disclosed. The insert is formed from a corrosion and fouling resistant steel composition containing a Cr-enriched layer and having a surface roughness of less than 40 micro inches (1.1 ?m).
    Type: Application
    Filed: December 20, 2006
    Publication date: August 16, 2007
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Mark Greaney, James Feather, Thomas Bruno, ChangMin Chun, Clifford Hay