COMBUSTION GAS-DRIVEN DRIVING-IN DEVICE
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United States of America Patent
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Dec 27, 2018
app pub date -
Dec 20, 2016
filing date -
Dec 20, 2016
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Abstract
The invention relates to a driving-in device comprising a driving-in piston which is guided in a cylinder for driving a nail element into a workpiece and comprising a combustion chamber which is arranged on the driving-in piston and which can be filled with an ignitable combustion gas mixture. An overpressure of the combustion gas mixture can be generated in the combustion chamber by a charging element, and the driving-in piston is sealed against an inner wall of the cylinder by a first seal during the driving-in movement. The driving-in piston is sealed from the combustion chamber by a second seal, which is loaded axially to a piston axis (A), in a starting position.
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