B - Operations – Transporting – 25 – C
Patent
B - Operations, Transporting
25
C
B25C 1/08 (2006.01) B25C 5/10 (2006.01)
Patent
CA 2729529
This invention relates to controlling a tool for driving fastening elements through firing a fuel. A valve, upon each shot, opens via a current (I A) in a component (15) created by a voltage injection control (U v). Upon the first one of a series of shots and after the control, the time to is detected of a drop of current in a measuring member upon the transient rise of current and, the opening period T o of the valve being predetermined, the end of the injection control is triggered at the time t d, after a period T o, following the time t o, reduced with a period T o, of a first rise of the voltage injection control following the beginning of the drop of current or a rise, following the beginning of its drop, of the current.
Cordeiro Pierre
Dreveton Jean-Michel
Grandjean Pascale
Finlayson & Singlehurst
Societe de Prospection Et D'inventions Techniques - Spit
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