Tool driving or impacting – Automatic control of power operated means – Drive means responsive to torque or speed condition
Reexamination Certificate
2007-12-26
2008-09-09
Smith, Scott A. (Department: 3721)
Tool driving or impacting
Automatic control of power operated means
Drive means responsive to torque or speed condition
C173S004000, C173S201000, C173S216000, C081S467000, C081S473000, C192S056100, C192S056560, C192S083000
Reexamination Certificate
active
07422075
ABSTRACT:
An overload clutch assembly for a power tool having two torque settings through which rotary drive is transmitted to a spindle. The overload clutch assembly is capable of being between switched between the two torque settings by at least one actuator. The clutch assembly comprises a carrier rotationally mounted on a output clutch spindle; a first clutch plate operational for transmitting torque below a first level; and a second clutch plate operational for transmitting torque below a second level higher than the first; and characterised in that, when the overload clutch is in the higher torque setting, the torque is transferred from the carrier to the output clutch spindle via the second clutch plate only.
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Search Report - European Patent Office for related application EP06114527.
Ayala Adan
Black & Decker Inc.
Markow Scott B.
Smith Scott A.
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