Patents by Inventor Thomas Clifford Williams

Thomas Clifford Williams 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).

  • Method and apparatus for generating fluid pressure pulses of adjustable amplitude
    Patent number: 11105167
    Abstract: A pressure generating device for use in downhole drilling operations includes a rotating valve portion having a first body with at least one first flow channel, and a stationary valve portion having a second body with at least one second flow channels and at least one bypass channel. A flow restrictor is positioned within the at least one bypass channel for adjusting a total flow area of the at least one bypass channel. During rotation of the rotating valve portion relative to the stationary valve portion, a total flow area of a passage defined by the first flow channel(s), the second flow channel(s), and the at least one bypass channel varies according to a uniform closure pattern to provide uniform pressure pulses within a single revolution of the rotating valve portion. A method of generating uniform pressure pulses in downhole drilling operations is also disclosed.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: August 31, 2021
    Assignee: NTS Amega West USA, Inc.
    Inventors: Anthony Louis Collins, Everett Philip Hagar, Robert William McCullough, Christopher Adam Well, Thomas Clifford Williams
  • Method and Apparatus for Generating Fluid Pressure Pulses of Adjustable Amplitude
    Publication number: 20200332602
    Abstract: A pressure generating device for use in downhole drilling operations includes a rotating valve portion having a first body with at least one first flow channel, and a stationary valve portion having a second body with at least one second flow channels and at least one bypass channel. A flow restrictor is positioned within the at least one bypass channel for adjusting a total flow area of the at least one bypass channel. During rotation of the rotating valve portion relative to the stationary valve portion, a total flow area of a passage defined by the first flow channel(s), the second flow channel(s), and the at least one bypass channel varies according to a uniform closure pattern to provide uniform pressure pulses within a single revolution of the rotating valve portion. A method of generating uniform pressure pulses in downhole drilling operations is also disclosed.
    Type: Application
    Filed: October 22, 2019
    Publication date: October 22, 2020
    Inventors: Anthony Louis Collins, Everett Philip Hagar, Robert William McCullough, Christopher Adam Well, Thomas Clifford Williams