Patents by Inventor Emil J. David

Emil J. David 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: 4574712
    Abstract: A fuel feed system for feeding particulate combustible material to a stove, a heater, furnace or the like, referred to herein as heating equipment, and the same in combination with such feed system wherein the combustible material is wood, preferably wood chips. A container is provided for holding a supply of the wood chips to be burned and a cover removably mounted on the container which, during use, is sealed on the container so as to provide a sealingly closed container. The conveyor system for moving the wood chips from the container to a burner in the heating equipment includes a first conveyor and a second conveyor for moving the wood chips along respective different flow paths and a drop box between such first and second conveyors that provides a contiguous flow path along the conveyor system. A normally closed one way flow valve is located in the drop box to prevent reverse flow through the drop box from said second to said first conveyor.
    Type: Grant
    Filed: August 27, 1984
    Date of Patent: March 11, 1986
    Inventor: Emil J. David
  • Patent number: 4050535
    Abstract: An articulated vehicle in which one of the articulation pivots is mounted on the canopy of the vehicle. At least one of the hinge members of the pivot is in the form of a wide plate member to provide additional overhead protection for components mounted on the vehicle.
    Type: Grant
    Filed: March 5, 1976
    Date of Patent: September 27, 1977
    Assignee: Eaton Yale Ltd.
    Inventors: John H. Bosshart, Emil J. David