Patents by Inventor Leo J. Grzych

Leo J. Grzych 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: 4700894
    Abstract: There is disclosed herein a firefighting nozzle forming a generally sphere-like water spray pattern. The nozzle includes a coupler for coupling the nozzle to a water delivery hose. The nozzle also includes a plurality of rings for forming a spray-like pattern. The ring includes a central ring positioned generally transverse to the water flow direction. A first group of nested and conical rings is positioned rearwardly of the ring and the surfaces of all successively rearwardly positioned rings sloping increasingly rearwardly. A second group of nested and conical rings is positioned forwardly of the central rings. The ring surfaces of successively forwardly positioned rings sloping increasingly forwardly. Each of the rings in the first and second group have a plurality of substantially radial water directing and fog forming slots, each of which has angularly shaped corner surfaces for creating turbulence.In addition, there is disclosed an elongated nozzle for extending the nozzle into a room or space.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: October 20, 1987
    Inventor: Leo J. Grzych