Resonant oscillating mass-based torquing tool

Tool driving or impacting – Automatic control of power operated means – Drive means responsive to torque or speed condition

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Details

173 5, 173 93, 173 935, 173 20, 173117, 173217, 173181, 173183, B25B 1400, B23Q 1709

Patent

active

058457186

ABSTRACT:
Disclosed is a low reaction oscillating mass-based torquing tool wherein an oscillating mass is excited into near resonant oscillation by reversing pulses resulting in increased oscillation about a torsion spring to the point where the torque associated with the energy stored in the torsion spring exceeds the torque required to further tighten a fastener and the torque released from the torsion spring tightens the fastener while a biasing torque assures application of the released torque in the tightening direction only.

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patent: 5094301 (1992-03-01), Wipperman et al.
patent: 5285857 (1994-02-01), Shimada
patent: 5457866 (1995-10-01), Noda
patent: 5492185 (1996-02-01), Schoeps et al.
patent: 5637968 (1997-06-01), Kainec et al.

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