Patents by Inventor Henry Lis

Henry Lis 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).

  • Patent number: 5579698
    Abstract: An apparatus specifically tailored to transporting pipes in a tunnel is disclosed. A pair of low slung bogies are used to support and transport a pipe to pipe junction location. The bogies move over a pair of rails on rollers. The pipe rests on a set of inflatable devices which may be selectively inflated in a controlled manner to move the pipe in two axes during transport to the junction site. At the junction site, the inflatable devices are used to "jockey" the pipe on the transport device to provide limited roll, pitch and yaw movement of the pipe to facilitate mating the transported pipe with the end of a previously set pipe string.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: December 3, 1996
    Inventors: Henry Lis, Michael P. McNally