Portable combustion gas-powered tools with combustion chamber lockout system
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United States of America Patent
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Aug 25, 2015
Grant Date -
Jan 24, 2013
app pub date -
Jul 21, 2011
filing date -
Jul 21, 2011
priority date (Note) -
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Abstract
A combustion-powered fastener-driving tool includes a combustion-powered power source including a cylinder head and a combustion chamber defined by the cylinder head, a valve sleeve and an upper surface of a reciprocating piston, the valve sleeve reciprocable relative to the cylinder head between a rest position and a pre-firing position. A lockout device is associated with the trigger and has an actuated position configured for preventing the reciprocation of the valve sleeve away from the pre-firing position until the trigger is released.
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