Patents by Inventor Frank Stephen Schroeder

Frank Stephen Schroeder 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).

  • Vented rotating flange assembly for plastic lined pipe
    Publication number: 20050052019
    Abstract: The subject invention provides a means of flanging a plastic lined steel pipe in a field fabrication environment by either threading or welding the flange adapter to the pipe housing, employing a rotating back up flange for easy bolt hole alignment during assembly, and providing a vent path for permeating gases trapped between the plastic liner and the pipe housing to escape.
    Type: Application
    Filed: September 10, 2003
    Publication date: March 10, 2005
    Applicant: Flangeman Marketing, Inc.
    Inventor: Frank Stephen Schroeder