Combustion powered tool with combustion chamber lockout

Details Combustion powered tool with combustion chamber lockout Combustion powered tool with combustion chamber lockout

B - Operations, Transporting

25

D

B25D 17/00 (2006.01) B25C 1/08 (2006.01) B25D 9/10 (2006.01) B25D 9/11 (2006.01)

Patent

CA 2250457

A combustion powered tool having a self-contained internal combustion power source constructed and arranged for creating a combustion for driving a driver blade to impact a fastener and drive it into a work piece includes a housing constructed and arranged to enclose the power source, a combustion chamber defined at an upper end of the housing, a cylinder disposed in the housing to be in fluid communication with the combustion chamber, a piston associated with the driver blade and configured for reciprocal movement within the cylinder between a start position located at a first end of cylinder and a driving position located at a second end of the cylinder, a gas control device for periodically opening the combustion chamber to atmosphere, and a delay apparatus connected to the gas control device for delaying the opening of the combustion chamber until the piston returns to the start position after driving the fastener.

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