Combustion powered tool with combustion chamber lockout

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

1997-10-31

1999-06-08

Smith, Scott A.

Elongated-member-driving apparatus

With interlock means

227 10, 227130, B25C 104

Patent

active

059098368

ABSTRACT:
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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