Patents by Inventor David Steblina

David Steblina 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).

  • Sealing device
    Patent number: 6170530
    Abstract: A releasable plug for sealing an open end of a fluid bearing pipe having at its open end an inwardly directed flange formed upon cutting an end of said pipe; said plug including a plug body, an annular recess formed in the body which engages said flange, and sealing means which frictionally engages an inner surface of said pipe thereby providing a pressure seal for said pipe.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: January 9, 2001
    Inventor: David Steblina