Tony J Walter

US Patent:

58735089, Feb 23, 1999

Filed:

Aug 26, 1997

Appl. No.:

8/920160

Inventors:

Robert T. MacVicar - Downers Grove IL
J. Oscar Aparicio - Aurora IL
Tony J. Walter - Cary IL
John P. Walter - Cary IL
Anton J. Walter - Algonquin IL

Assignee:

Applied Tool Development Corporation - Elgin IL

International Classification:

B25C 108

US Classification:

227 10

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. At least one fan external to the combustion chamber induces an intake of fresh air into the combustion chamber through one of the apertures and an exhaust of combustion products from the combustion chamber through the other aperture.

US Patent:

63118874, Nov 6, 2001

Filed:

Jan 25, 2000

Appl. No.:

9/491489

Inventors:

Tony J. Walter - Cary IL

Assignee:

Applied Tool Development Corporation - Elgin IL

International Classification:

B25C 108

US Classification:

227 10

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. At least one fan external to the combustion chamber induces an intake of fresh air into the combustion chamber through one of the apertures and an exhaust of combustion products from the combustion chamber through the other aperture.

US Patent:

63186152, Nov 20, 2001

Filed:

Jan 25, 2000

Appl. No.:

9/491054

Inventors:

Tony J. Walter - Cary IL

Assignee:

Applied Tool Development Corporation - Elgin IL

International Classification:

B25C 108

US Classification:

227 10

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. At least one fan external to the combustion chamber induces an intake of fresh air into the combustion chamber through one of the apertures and an exhaust of combustion products from the combustion chamber through the other aperture.

US Patent:

61232416, Sep 26, 2000

Filed:

Dec 18, 1998

Appl. No.:

9/215726

Inventors:

Tony J. Walter - Cary IL
J. Oscar Aparicio - Aurora IL

Assignee:

Applied Tool Development Corporation - Elgin IL

International Classification:

B25C 108

US Classification:

227 8

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. At least one fan external to the combustion chamber induces an intake of fresh air into the combustion chamber through one of the apertures and an exhaust of combustion products from the combustion chamber through the other aperture.