Combustion-powered tool assembly
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United States of America Patent
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-
Mar 30, 1993
Grant Date -
N/A
app pub date -
Mar 9, 1992
filing date -
Mar 9, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a combustion-powered, fastener-driving tool, a cylinder body mounted fixedly within a housing structure has a combustion chamber defining an axis. A valve sleeve functions to open and close the combustion chamber. A piston operative within the combustion chamber and a driving blade moveable with the piston function to drive a fastener into a workpiece. An improved linkage for moving the valve sleeve includes a workpiece-contacting element and a pair of arms attached to such element and disposed alongside the cylinder body and the nosepiece. An improved, one-piece, interlocking member prevents a trigger from being actuated unless the combustion chamber is closed. Thus, a simple, compact, lightweight tool is provided.
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