Patents by Inventor Arne J. Britz

Arne J. Britz 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: 4379469
    Abstract: A multilobe bonnet is provided for the upper end of a fire hydrant with the multiple lobes thereof projecting upwardly from the bonnet at points spaced about and radially outwardly from the conventional pentagonal upper terminal end of the hydrant valve control rod, the upper terminal end projecting above the upper surfaces of the bonnet disposed centrally between the upwardly projecting lobes disposed thereabout. In addition, the side outlet closure caps of the hydrant are formed in a similar manner with the lobes on the bonnet preventing the engagement of a convention wrench with the valve control rod upper terminal end and the lobes on the closure caps similarly preventing engagement of conventional wrenches with the central pentagonal projections on the caps.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: April 12, 1983
    Inventor: Arne J. Britz