Force responsive power tool
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United States of America Patent
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-
Nov 30, 2021
Grant Date -
Nov 7, 2019
app pub date -
Jul 3, 2019
filing date -
Mar 15, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tool for operating on a workpiece includes a motion actuator and a controller that responsively varies a speed of the motion actuator and an operating speed of a working surface. The controller is configured to respond to a derived force that is a function an applied force exerted by an operator to manageably adjust pressure on the working surface to achieve a rate of work. The controller changes simultaneously both a rate of work on the workpiece and the operating speed of the working surface according to a sensitivity profile. The simultaneous change of rate of work and operating speed is manageable under both acceleration and deceleration by the operator with the applied force. The sensitivity profile expresses a relationship of a monotonically increasing positive slope between the derived force and the operating speed of the working surface within the range.
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