Arrangement of torque limiters or torque indicators in wrenches or screwdrivers (couplings for transmitting rotation or clutches F16D; devices for measuring torque per se G01L)

Child Classifications

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• B25B 23/1405 CPC only CPC only
• B25B 23/141 CPC only CPC only
• B25B 23/1415 CPC only CPC only
• B25B 23/142 specially adapted for hand operated wrenches or screwdrivers since 1974 +1 CPC −1 IPC IPC+CPC Available in IPC and CPC
• B25B 23/145 specially adapted for fluid operated wrenches or screwdrivers since 1974 +2 CPC IPC+CPC Available in IPC and CPC
• B25B 23/147 specially adapted for electrically operated wrenches or screwdrivers since 1974 +1 CPC IPC+CPC Available in IPC and CPC
• B25B 23/15 having a mechanism to mark the work when the selected torque is applied to the work since 1985 IPC+CPC Available in IPC and CPC
• B25B 23/151 the motor drive having condition-responsive means to regulate the power output of a motor driving the work-contacting component since 1985 IPC only IPC only
• B25B 23/153 having a force-transmitting element which is permanently deformed upon application of an excessive amount of torque since 1985 IPC only IPC only
• B25B 23/155 wherein the work-contacting means is released from torque-transmitting engagement with the work, when a selected torque is exceeded since 1985 IPC only IPC only
• B25B 23/157 having torque controlled clutch-type arrangements since 1985 IPC only IPC only
• 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 since 1985 IPC only IPC only