Patents by Inventor Craig Avery Preston

Craig Avery Preston 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).

  • Tubing for a plumbing connection
    Patent number: 7686352
    Abstract: Cross-linked polyethylene (PEX) tubing is utilized in a plumbing application for its strength and flexibility. A thin outer layer is formed around the PEX layer to provide a variety of color choices for the final tubing. The use of a softer material for the outer layer provides the unexpected benefit of a more secure connection as a standard connector having a ring is able to dig into the outer layer and provide a more secure grip and an improved hydraulic sealing.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: March 30, 2010
    Assignee: Brass Craft Manufacturing Company
    Inventor: Craig Avery Preston
  • Tubing for a plumbing connection
    Publication number: 20080217918
    Abstract: Cross-linked polyethylene (PEX) tubing is utilized in a plumbing application for its strength and flexibility. A thin outer layer is formed around the PEX layer to provide a variety of color choices for the final tubing. The use of a softer material for the outer layer provides the unexpected benefit of a more secure connection as a standard connector having a ring is able to dig into the outer layer and provide a more secure grip and an improved hydraulic sealing.
    Type: Application
    Filed: March 5, 2007
    Publication date: September 11, 2008
    Inventor: Craig Avery Preston