Patents by Inventor Jan Baars

Jan Baars 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).

  • Device for sealing an aperture in a wall with a foamed resin
    Patent number: 4969787
    Abstract: A device for attaching a plate or cap over an opening, comprising a rod or wire extending from the front through the plate or cap. On the end of the rod or wire extending into the opening, there is provided a spring clamp whose end remote from the rod or wire has a sharp point. The plate or cap has a closeable opening therein for introducing a foamable resin thereinto, which foamable resin forms a foam in the plate or cap and in the opening and, thus, seals the opening.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: November 13, 1990
    Assignee: Chemische Industrie Filoform B.V.
    Inventor: Jan Baars
  • Method and an apparatus for fitting a stopper in a pipe, tube, wall passage or the like, and a container consisting of at least two compartments filled with intermixable substances
    Patent number: 4785857
    Abstract: The invention relates to a method of stoppering a pipe, or the like. The method uses a two-compartment flexible container, with one compartment containing an activating agent, and the other a foamable resin. After mixing a nipple is attached to a container wall. The nipple, on one end, has rupturing elements to rupture the wall and the other end is connected to a supply hose whose free end is brought to the desired location in the pipe for stoppering the same with foamed resin flowing from the container.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: November 22, 1988
    Assignee: Chemische Industrie Filoform B.V.
    Inventor: Jan Baars
  • Method and an apparatus for waterproofing and gastightening a cable and/or tube passage in a wall or the like, using a foamable synthetic resin
    Patent number: 4751031
    Abstract: A method and an apparatus for waterproofing and gastightening a cable or tube passage (9) in a wall (11) or the like, using a foamable synthetic resin (8). A box-shaped or cover-shaped element, e.g. a cap (1, 2) is attached to one side of the wall, after which through an opening in cap (1, 2) the foamable resin (8) is supplied therein and the opening is stopped. The cap (1, 2) may consist of two parts (1, 2) and the two parts may be provided with rupturable closures or closable openings.
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: June 14, 1988
    Assignee: Chemische Industrie Filoform B.V.
    Inventor: Jan Baars