Patents by Inventor Benny E. Dawsey

Benny E. Dawsey 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).

  • Downhole check valve assembly with a frustoconical mandrel
    Patent number: 11313189
    Abstract: Valve systems and methods for inserting into a casing used in a downhole environment are provided. The valve system includes a tool mandrel, a check valve assembly, and a setting system. The setting system includes inner and outer setting mandrels and a slip collar. The inner setting mandrel is located around at least a portion of the tool mandrel and includes a frustoconical outer surface. The outer setting mandrel is located around at least a portion of the inner setting mandrel and includes a frustoconical inner surface. The slip collar is located around at least a portion of the outer setting mandrel and includes a plurality of tabs and each tab includes gripping elements.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: April 26, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Benny E. Dawsey, Lonnie C. Helms, Stephen A. Yeldell, Min M. Yuan
  • Downhole Check Valve Assembly with a Frustoconical Mandrel
    Publication number: 20200340315
    Abstract: Valve systems and methods for inserting into a casing used in a downhole environment are provided. The valve system includes a tool mandrel, a check valve assembly, and a setting system. The setting system includes inner and outer setting mandrels and a slip collar. The inner setting mandrel is located around at least a portion of the tool mandrel and includes a frustoconical outer surface. The outer setting mandrel is located around at least a portion of the inner setting mandrel and includes a frustoconical inner surface. The slip collar is located around at least a portion of the outer setting mandrel and includes a plurality of tabs and each tab includes gripping elements.
    Type: Application
    Filed: February 27, 2018
    Publication date: October 29, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Benny E. Dawsey, Lonnie C. Helms, Stephen A. Yeldell, Min M. Yuan