Michael Steven Ritchey

US Patent:

20060185146, Aug 24, 2006

Filed:

Feb 18, 2005

Appl. No.:

11/060613

Inventors:

Lawrence Piggins - Livermore CA, US
Michael Ritchey - Grand Blanc MI, US
Richard Szwast - Farmington Hills MI, US
Thomas Jozwiak - Taylor MI, US

International Classification:

B23Q 17/00
B25B 23/14

US Classification:

029407020, 073862210

Abstract:

A pulse synchronize load stabilization routine for adjusting a fastener to a desired torque level with a tool operatively connected to a fastener is provided. The method includes applying a first level of current to the tool, pulsing the tool to cause the fastener to rotate and measuring a dynamic torque load on the fastener while it is rotating. A computer readable medium containing an executable code for adjusting a fastener with a tool operatively connected to the fastener is also provided. Executable code includes a routine which causes the tool to run in a first velocity speed control mode determined if a torque load is at a predetermined level and if the torque load is at a predetermined level, then apply a pulse synchronize load stabilization sequence.