Patents by Inventor David Wayne Largent

David Wayne Largent 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).

  • Screen assembly for vibratory separators
    Patent number: 7000776
    Abstract: Screen assemblies for a vibratory separator and methods of using them, the screen assemblies in one aspect including a first screen portion having a first end and a second end spaced apart from the first end, a second screen portion adjacent the second end of the first screen portion, the second screen portion projecting down from the second end of the first screen portion.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: February 21, 2006
    Assignee: Varco I/P, Inc.
    Inventors: Joseph C. Winkler, Thomas C. Adams, Kenneth W. Seyffert, David Wayne Largent, David L. Schulte, Jr., Charles N. Grichar, Guy L. McClung, III
  • Automated methods for making screen assemblies for vibratory separators
    Publication number: 20040112522
    Abstract: Methods for making frames for screen assemblies for vibratory separators, and screen assemblies with such frames, the methods, in certain aspects, including making a frame support for a screen assembly for a vibratory separator (e.g. but not limited to with robotic welding apparatus), moving the frame support to cleaning apparatus to clean the frame support, heating the frame support, moving the heated frame support to coating apparatus, coating the frame support in the coating apparatus with protective material, allowing the coated frame support to cool so that the protective material sets, moving of the frame support in one aspect done by mechanical movement apparatus; and, in certain aspects, adding screening material to the frame to produce a screen assembly.
    Type: Application
    Filed: August 27, 2003
    Publication date: June 17, 2004
    Inventors: Kerry T. Ward, Thomas C. Adams, Kenneth W. Seyffert, David Wayne Largent, David L. Schulte, Vincent D. Leone, Jeffrey E. Walker, Charles N. Grichar, Guy L. McClung
  • Screen assembly for vibratory separators
    Publication number: 20040099578
    Abstract: Screen assemblies for a vibratory separator and methods of using them, the screen assemblies in one aspect including a first screen portion having a first end and a second end spaced apart from the first end, a second screen portion adjacent the second end of the first screen portion, the second screen portion projecting down from the second end of the first screen portion.
    Type: Application
    Filed: June 3, 2003
    Publication date: May 27, 2004
    Inventors: Joseph C. Winkler, Thomas C. Adams, Kenneth W. Seyffert, David Wayne Largent, David L. Schulte, Charles N. Grichar, Guy L. McClung
  • Screen assembly for vibratory separator
    Publication number: 20040007508
    Abstract: A screen assembly for a vibratory separator, the screen assembly including screening material with opposed spaced-apart sides including a first side and a second side, a side mount on each of the opposed spaced-apart sides, each side of the opposed spaced-apart sides having an edge portion, and each edge portion held within a side mount; a vibratory separator with such a screen assembly; and methods of their use.
    Type: Application
    Filed: May 2, 2003
    Publication date: January 15, 2004
    Inventors: David L. Schulte, Thomas C. Adams, Kerry T. Ward, Kenneth W. Seyffert, Charles N. Grichar, Vincent D. Leone, Jeffrey E. Walker, David Wayne Largent, Guy L. McClung