Patents by Inventor Christopher Andrew HALL

Christopher Andrew HALL 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).

  • Shear blade geometry and method
    Patent number: 8632047
    Abstract: A pair of shear blades and a blowout preventer having the pair of shear blades. The shear blades are configured to cut a tubular inside the blowout preventer. The shear blades have different geometries of the front cutting surfaces. One geometry promotes a secure positioning of the tubular relative to the first blade while the second geometry promotes a puncturing of the tubular by the second blade.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: January 21, 2014
    Assignee: Hydril USA Manufacturing LLC
    Inventors: Christopher Andrew Hall, Seemant Yadav, Robert Arnold Judge
  • Shear Blade Geometry and Method
    Publication number: 20120193087
    Abstract: A pair of shear blades and a blowout preventer having the pair of shear blades. The shear blades are configured to cut a tubular inside the blowout preventer. The shear blades have different geometries of the front cutting surfaces. One geometry promotes a secure positioning of the tubular relative to the first blade while the second geometry promotes a puncturing of the tubular by the second blade.
    Type: Application
    Filed: February 2, 2011
    Publication date: August 2, 2012
    Applicant: HYDRIL USA MANUFACTURING LLC
    Inventors: Christopher Andrew HALL, Seemant YADAV, Robert Arnold JUDGE