Patents by Inventor Gerrit Elmenhorst

Gerrit Elmenhorst 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 producing fire-fighting foam
    Patent number: 5787989
    Abstract: It consists of a fan casing (3) and a fan (2) which are operated by a reaction jet motor (6). The reaction jet motor (6) has nozzles (5) and is connected to a liquid under pressure, usually water with a foaming agent added. When the liquid is sprayed from the nozzles (5) the reaction forces will operate the fan (2). The nozzles (5) are designed in such a manner that they give the liquid a cohesive and compact jet with maximum thrust. A grid (9) is located between the nozzles (5) and the foam net (8) for atomization and dispersion of the liquid. The air (4) blows the liquid through the foam net (8) thus generating fire-fighting foam.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: August 4, 1998
    Inventor: Gerrit Elmenhorst