Patents by Inventor Shelby Lee SULLIVAN

Shelby Lee SULLIVAN 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).

  • Switch sub with two way sealing features and method
    Patent number: 11208873
    Abstract: A switch sub adapter configured to connect a switch sub to a perforating gun assembly. The switch sub adapter includes a tubular body having first threads that connect to the switch sub and second threads that connect to the perforating gun assembly; a first internal chamber formed at a first end of the adapter; a second internal chamber formed at a second end of the adapter; a conduit connecting the first internal chamber to the second internal chamber; and a dart having a tip located in the conduit and a base part located in the second internal chamber. The dart is formed from a compliant material that deforms in response to pressure resulting from detonation of charges associated with the perforating gun.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: December 28, 2021
    Assignee: Bakken Ball Retrieval LLC
    Inventor: Shelby Lee Sullivan
  • SWITCH SUB WITH TWO WAY SEALING FEATURES AND METHOD
    Publication number: 20180135389
    Abstract: There is a switch sub adapter configured to connect a switch sub to a perforating gun assembly. The switch sub adapter includes a body having first threads that connect to the switch sub and second threads that connect to the perforating gun assembly; a first internal chamber formed at a first end of the adapter; a second internal chamber formed at a second end of the adapter; a conduit connecting the first internal chamber to the second internal chamber; and a dart having a tip part located in the conduit and a base part located in the second internal chamber.
    Type: Application
    Filed: November 9, 2017
    Publication date: May 17, 2018
    Inventor: Shelby Lee SULLIVAN