IPC Subgroup
B25B 23/14 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
Classification Context
- 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
Related Keywords
wrenches or screwdrivers which limit the TORQUE applied
9 direct subcodes
Child Classifications
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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
Top Applicants
Top 10 applicants by patent filingsfor class B25, 2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 4,635
- FANUC JP 3,353
- ROBERT BOSCH DE 2,950
- LG ELECTRONICS KR 2,397
- HILTI LI 2,243
- FANUC 2,234
- SEIKO EPSON CORPORATION 2,131
- KAWASAKI HEAVY IND JP 1,940
- MAKITA CORPORATION 1,851
- SAMSUNG ELECTRONICS COMPANY KR 1,562