Patents by Inventor Harvey H. Hamilton

Harvey H. Hamilton 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).

  • Greasing system for fifth wheel of trucks
    Patent number: 8215455
    Abstract: A greasing system featuring a fifth wheel of a truck having a grease vein with four ports disposed therein, each port being fluidly connected to a fitting; a grease pump operatively connected to an air switch which turns on and off the grease pump; a main tube fluidly connected to the grease pump, the main tube bifurcates into a first delivery tube fluidly connected to the first fitting and a second delivery tube fluidly connected to the second fitting; and a third delivery tube fluidly connected to the first fitting and to the third fitting, and a fourth delivery tube fluidly connected to the second fitting and to the fourth fitting; wherein when the grease pump is activated the grease pump pumps grease to the ports in the grease vein of the fifth wheel.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: July 10, 2012
    Inventors: Harvey H. Hamilton, Debbie Hamilton