Patents by Inventor Gregg Senechal

Gregg Senechal 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).

  • Submerged fluid jet polishing
    Patent number: 7749049
    Abstract: Fluid jet polishing (FJP) is a method of contouring and polishing a surface of a component by aiming a jet of a slurry of working fluid from a nozzle at the component and eroding the surface to create a desired shape. During erosion, the end of the nozzle and the component are submerged within the working fluid, whereby air is not introduced into the closed loop of working fluid slurry. Any bubbles that are present in the system simply bubble to an air pocket at the top of the erosion chamber and are not re-circulated, thereby producing surfaces with very smooth surface finishes.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: July 6, 2010
    Assignee: Lightmachinery Inc.
    Inventors: John H. Hunter, Ian J. Miller, John Nilson, Gregg Senechal, Jeff Wimperis
  • Fluid jet polishing with constant pressure pump
    Patent number: 7455573
    Abstract: The invention relates to fluid jet polishing machine including a pump that maintains a constant pressure in the polishing fluid during each pass of a nozzle over a component. Fluid actuated diaphragms expand and contract the volume of a pair of pump chambers, thereby eliminating the need for high-speed shafts or components in contact with the abrasive slurry.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: November 25, 2008
    Assignee: LightMachinery Inc.
    Inventors: Zhi Huang, John H. Hunter, Graham Malcove, Ian J. Miller, Gregg Senechal
  • FLUID JET POLISHING WITH CONSTANT PRESSURE PUMP
    Publication number: 20080057840
    Abstract: The invention relates to fluid jet polishing machine including a pump that maintains a constant pressure in the polishing fluid during each pass of a nozzle over a component. Fluid actuated diaphragms expand and contract the volume of a pair of pump chambers, thereby eliminating the need for high-speed shafts or components in contact with the abrasive slurry.
    Type: Application
    Filed: September 5, 2007
    Publication date: March 6, 2008
    Inventors: Zhi Huang, John H. Hunter, Graham Malcove, Ian J. Miller, Gregg Senechal
  • Submerged Fluid Jet Polishing
    Publication number: 20080038991
    Abstract: Fluid jet polishing (FJP) is a method of contouring and polishing a surface of a component by aiming a jet of a slurry of working fluid from a nozzle at the component and eroding the surface to create a desired shape. During erosion, the end of the nozzle and the component are submerged within the working fluid, whereby air is not introduced into the closed loop of working fluid slurry. Any bubbles that are present in the system simply bubble to an air pocket at the top of the erosion chamber and are not re-circulated, thereby producing surfaces with very smooth surface finishes.
    Type: Application
    Filed: January 19, 2007
    Publication date: February 14, 2008
    Inventors: John H. Hunter, Ian J. Miller, John Nilson, Gregg Senechal, Jeff Wimperis