FIRING-OPERATION TOTALIZING DEVICE FOR A GAS NAIL GUN
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United States of America Patent
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Issued Date -
Mar 5, 2015
app pub date -
Sep 3, 2014
filing date -
Sep 5, 2013
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Abstract
A firing-operation totalizing device for a gas nail gun includes two pressure areas, a pressure feedback unit mounted in a body, and an electric control unit. The pressure areas are constituted by an interior of a combustion chamber and an interior of a cylinder body. The pressure feedback unit outputs a pressure signal in response to each pressure change of at least one of the pressure areas. The electric control unit includes a control circuit that totalizes the number of the firing operations based on the pressure signals received thereby. As such, the totalized number of the firing operations is increased only when a pressure change of the at least one of the pressure areas occurs due to an explosion to totalize accurately the number of effective firing operations.
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