Patents by Inventor David Shrader Mann

David Shrader Mann 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).

  • Flue pan washer for maple sugar evaporator
    Patent number: 7794547
    Abstract: The present invention is directed to an automatic washer system mounted within a maple sugar evaporator above the rear flue pan for removing niter and sediment built up during the boiling of sap. The evaporator comprises a furnace, a steam hood, a pan and a nozzle for washing the pan. The steam hood extends over the furnace. The pan is mounted to the furnace and under the steam hood. The nozzle is mounted over the pan. Cleaning fluid is sprayed from the nozzle to clean the pan by an automated process.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: September 14, 2010
    Inventor: David Shrader Mann
  • Flue pan washer for maple sugar evaporator
    Publication number: 20080029129
    Abstract: The present invention is directed to an automatic washer system mounted within a maple sugar evaporator above the rear flue pan for removing niter and sediment built up during the boiling of sap. The evaporator comprises a furnace, a steam hood, a pan and a nozzle for washing the pan. The steam hood extends over the furnace. The pan is mounted to the furnace and under the steam hood. The nozzle is mounted over the pan. Cleaning fluid is sprayed from the nozzle to clean the pan by an automated process.
    Type: Application
    Filed: August 3, 2006
    Publication date: February 7, 2008
    Inventor: David Shrader Mann