Actuation structure for internal fuel cell metering valve and associated combustion tool
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United States of America Patent
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Sep 22, 2009
Grant Date -
Apr 5, 2007
app pub date -
Oct 3, 2005
filing date -
Oct 3, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a combustion-powered fastener driving tool employing a fuel cell having an internal fuel metering valve with an axially reciprocating delivery stem, an actuator is provided for causing the dispensing of a desired dose of fuel from the fuel cell prior to each combustion event, the actuator including at least one actuator element configured for exerting an axial force on the stem, releasing the dose of fuel, and a fuel conduit associated with the element and being in fluid communication with the stem for transmitting the fuel for delivery to a combustion engine.
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