Patents by Inventor Michael J. Landman

Michael J. Landman 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).

  • Apparatus for replacing pipe gaskets
    Patent number: 4769889
    Abstract: The invention provides apparatus for displacing the juxtaposed ends of pipes towards or away from one another comprising; apparatus for separating and drawing together the juxtaposed ends of pipes comprising; a first gripping member engageable with a first pipe; a second gripping member engageable with a second pipe; a first and second clamping means for clamping the first and second pipes to the first and second gripping members respectively; a guide means for permitting movement of the gripping members towards and away from one another in a guided manner; and a displacing means for displacing the gripping members towards and away from one another.
    Type: Grant
    Filed: October 15, 1986
    Date of Patent: September 13, 1988
    Assignee: Michael J. Landman
    Inventors: Michael J. Landman, Jurgens J. Landman