Arrangement of torque limiters or torque indicators in wrenches or screwdrivers

Introduced: September 1968

Last revised: January 2006

Full Title

Details of, or accessories for, spanners, wrenches, screwdrivers > Arrangement of torque limiters or torque indicators in wrenches or screwdrivers

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS
Subclass:: TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING

wrenches or screwdrivers which limit the TORQUE applied

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B25B 23/142 specially adapted for hand operated wrenches or screwdrivers
B25B 23/145 specially adapted for fluid operated wrenches or screwdrivers
B25B 23/147 specially adapted for electrically operated wrenches or screwdrivers
B25B 23/15 having a mechanism to mark the work when the selected torque is applied to the work
B25B 23/151 the motor drive having condition-responsive means to regulate the power output of a motor driving the work-contacting component
B25B 23/153 having a force-transmitting element which is permanently deformed upon application of an excessive amount of torque
B25B 23/155 wherein the work-contacting means is released from torque-transmitting engagement with the work, when a selected torque is exceeded
B25B 23/157 having torque controlled clutch-type arrangements
B25B 23/159 the work-contacting component comprising or being connected to a resilient structural member, which remains rigid and fully force transmitting until a selected torque is exceeded or which signals excessive torque