Patents by Inventor David Wayne Granderson

David Wayne Granderson 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).

  • Publication number: 20240392899
    Abstract: A pipe may include an inner thermoplastic pipe and an outer layer of thermoplastic material. The outer layer of thermoplastic material may be wrapped around the inner thermoplastic pipe. The outer layer of thermoplastic material may be fused with the inner thermoplastic pipe. The pipe may also include an induction heating compatible material (IHCM) within or between at least one of the inner thermoplastic pipe or the outer layer of thermoplastic material.
    Type: Application
    Filed: May 17, 2024
    Publication date: November 28, 2024
    Inventors: James Pisarkiewicz, David Wayne Granderson
  • Publication number: 20240391181
    Abstract: A pipe may include an inner thermoplastic pipe, an outer layer of a fiber reinforced laminate, and a bond material. The bond material may be disposed between the inner thermoplastic pipe and the outer layer of fiber reinforced laminate. The bond material may be partially embedded within the inner thermoplastic pipe. At least one of the inner thermoplastic pipe or the bond material may include an induction heating compatible material (IHCM).
    Type: Application
    Filed: May 17, 2024
    Publication date: November 28, 2024
    Inventors: James Pisarkiewicz, David Wayne Granderson
  • Publication number: 20220316637
    Abstract: A pipe connection for connecting pipe or terminating pipe may include a mandrel with an insertion portion configured for inserting into an open end of a pipe and including a head. The pipe connection may also include a slip for bitingly engaging an outer surface of the pipe and having a first tapered portion and a second tapered portion. The pipe connection may also include a sleeve having cam surfaces for engaging the first and second tapered portions and a head engaging portion for securing the sleeve to the head.
    Type: Application
    Filed: May 22, 2020
    Publication date: October 6, 2022
    Inventor: David Wayne Granderson