COMBUSTION-TYPE POWER TOOL
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United States of America Patent
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Issued Date -
Dec 18, 2014
app pub date -
Jun 13, 2014
filing date -
Jun 18, 2013
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Abstract
In a combustion-type power tool, when a safety unit is pressed against a workpiece to cause a valve sleeve to close a combustion chamber, a power region of a lever is actuated to permit a weight region of the lever to displace a holding member holding a fuel canister from a normal position to a pressed position. When the holding member is in the pressed position, a valve stem of the fuel canister is forced into pressing engagement with an intake port of a fuel canister actuation unit to permit delivery of a measured dose of fuel to the combustion chamber through the intake port.
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