Patents by Inventor Charles David Slavin

Charles David Slavin 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).

  • TAPERED COLLET MECHANISM FOR SHIFTING PLUG RELEASE
    Publication number: 20240026751
    Abstract: Provided is an inner sleeve, a downhole tool, and a method for cementing. The inner sleeve, in at least one aspect, includes a tubular having an inside tubular surface and an outside tubular surface. The inner sleeve, according to this aspect, further includes a collet including two or more collet fingers coupled to one end of the tubular, the collet having an inside collet surface and an outside collet surface, and further wherein the inside collet surface flares outward from the inside tubular surface by an angle (?0) when the collet is in its natural state.
    Type: Application
    Filed: July 21, 2022
    Publication date: January 25, 2024
    Inventors: Lonnie Carl Helms, Maithri Muddasani, Charles David Slavin, Frank Vinicia Acosta Villarreal