Patents by Inventor Harvey L. Nordin

Harvey L. Nordin 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).

  • Stationary standby sand spreading unit for roadways
    Patent number: 5542719
    Abstract: A standby sanding unit for emergency sanding of icy roadways has a plurality of sand hoppers that are connected to a tank holding air under pressure. The hoppers have hopper type bottoms that have nozzles attached to the bottoms so that when air under pressure is provided to the upper portions of the tank, sand will be discharged out through the nozzles. The air pressure tank has valves that control the flow of air under pressure to the hoppers, when needed.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: August 6, 1996
    Inventor: Harvey L. Nordin