Patents by Inventor Anton J. Walter

Anton J. Walter 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).

  • Internal combustion powered tool
    Patent number: 5873508
    Abstract: An internal combustion powered tool, such as a nail or fastener driver, and a control system, spark source, and rotary valve for use in an internal combustion powered tool are disclosed. The tool may include, for example, a cylinder and a piston reciprocally moveable within the cylinder. A combustion chamber is defined at one end of the cylinder, with the piston comprising a portion of one end of the combustion chamber. The tool may have a fastener driver associated with the piston, and a magazine for feeding fasteners into registration with the driver. A fuel flow passageway extends between a fuel source and the combustion chamber, and a metering valve controls the flow of fuel to the combustion chamber. A spark source within the combustion chamber is provided for igniting the fuel, and an intake and exhaust valve that includes a pair of diametrically opposed apertures is provided.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: February 23, 1999
    Assignee: Applied Tool Development Corporation
    Inventors: Robert T. MacVicar, J. Oscar Aparicio, Tony J. Walter, John P. Walter, Anton J. Walter
  • Internal combustion powered tool
    Patent number: 5752643
    Abstract: An internal combustion powered tool, such as a nail or fastener driver, and a control system, spark source, and rotary valve for use in an internal combustion powered tool are disclosed. The tool may include, for example, a cylinder and a piston reciprocally moveable within the cylinder. A combustion chamber is defined at one end of the cylinder, with the piston comprising a portion of one end of the combustion chamber. The tool may have a fastener driver associated with the piston, and a magazine for feeding fasteners into registration with the driver. A fuel flow passageway extends between a fuel source and the combustion chamber, and a metering valve controls the flow of fuel to the combustion chamber. A spark source within the combustion chamber is provided for igniting the fuel, and an intake and exhaust valve that includes a pair of diametrically opposed apertures is provided.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: May 19, 1998
    Assignee: Applied Tool Development Corporation
    Inventors: Robert T. MacVicar, John P. Walter, Anton J. Walter