Fastening tool with an internal combustion engine with a unique opening and closing chamber abutment
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United States of America Patent
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Aug 12, 2014
Grant Date -
Jun 16, 2011
app pub date -
Nov 30, 2010
filing date -
Dec 11, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
The tool is to be used for driving fastening members into a supporting material. It comprises a cylinder (3), with a piston (5), a combustion chamber (1, 11), a cylinder head (12) bearing a fuel igniting means (36) in the chamber (1), a pin guide (9), for receiving a fastening member and the piston (5) shaft (7) and a cage (21). Return means are provided for opening the chamber (11), driving the pin guide (9) forwardly, opening and closing abutment means for the chamber (11). There are provided:
- one single central spring (32) for opening the chamber (11) and,on each side of the tool, one single opening and closing side chamber abutment (18, 55), integral with the chamber (11) and mobile in translation on the corresponding side of the cylinder (3).
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