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Class Information
Number: 192/43.2
Name: Clutches and power-stop control > Clutches > Automatic > One-way engaging > Reversible > Slidable pawls
Description: Clutches in which the engaging elements are slidable pawls.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8661947 Three-mode direction-changeable ratchet wrench Mar. 4, 2014
8490521 Ratchet tool Jul. 23, 2013
8261636 Quick-turn wrench Sep. 11, 2012
8122791 Three-way ratchet drive mechanism Feb. 28, 2012
7942253 Thumb-actuated handle device May. 17, 2011
7827886 Ratchet wrench with three operative positions Nov. 9, 2010
7444904 Ratchet mechanism for ratchet tool Nov. 4, 2008
7398710 Rotary positioning structure of a ratchet screwdriver Jul. 15, 2008
7380482 High-strength ratchet structure for ratchet wrench Jun. 3, 2008
7313987 Ratchet tool Jan. 1, 2008
7311186 Ratchet tool having increased driving torque Dec. 25, 2007
7263918 Ratchet structure for a wrench Sep. 4, 2007
7237460 Biasing arrangement for a pawl of a reversible ratchet-type wrench Jul. 3, 2007
7225708 Ratchet tool having smooth engaging member Jun. 5, 2007
7137320 Ratcheting tool driver Nov. 21, 2006
7107876 Ratchet type screwdriver Sep. 19, 2006
7080579 Ratchet wrench Jul. 25, 2006
7055411 Ratchet coupling means for a driving tool Jun. 6, 2006
7047843 Tool coupling device May. 23, 2006
7036400 Wrench May. 2, 2006
6966241 Selective one-way wrench Nov. 22, 2005
6925913 Selective one-way wrench Aug. 9, 2005
6925912 Operating device for a screwdriver Aug. 9, 2005
6920809 Selective one-way wrench Jul. 26, 2005
6912935 Pawl control structure ratchet tools Jul. 5, 2005
6902047 Ratchet device comprising two sets of symmetrical pawls to enhance torsion thereof Jun. 7, 2005
6880432 Ratchet socket Apr. 19, 2005
6854363 Ratchet driver Feb. 15, 2005
6805027 Pawl selection mechanism for ratchet tools Oct. 19, 2004
6761091 Compact structure for controlling movement of pawl for ratchet tools Jul. 13, 2004
6722234 Easy-to-operate and easy-to-assemble ratcheting-type wrench Apr. 20, 2004
6705443 Freewheel clutch for a pedal vehicle and method of transmitting power using a freewheel clutch Mar. 16, 2004
6666112 Switching arrangement for a reversible ratchet type wrench Dec. 23, 2003
6647832 Wrench having two rigid supporting areas for a pawl Nov. 18, 2003
6644147 Ratchet device for a screwdriver Nov. 11, 2003
6568693 Ratcheting hand held tool May. 27, 2003
6543315 Ratchet structure of screwdriver Apr. 8, 2003
6530296 Unidirectional ratchet wrench Mar. 11, 2003
6516930 Ratchet mechanism for tools Feb. 11, 2003
6450312 Easily direction-convertible ratchet assembly for a hand tool Sep. 17, 2002
6397705 Direction control arrangement for a wrench or the like Jun. 4, 2002
6387008 Speed-changing control mechanism of multistage speed-changing wheel hub May. 14, 2002
6386072 Ratchet tool May. 14, 2002
6370988 Ratcheting screwdriver with reversing cap having projecting pin Apr. 16, 2002
6364082 Freewheel clutch and a method of transmitting power using a freewheel clutch Apr. 2, 2002
6279428 Ratchet wrench Aug. 28, 2001
6244139 Adjustable shifter for controlling the racing of a slideable ratchet shank Jun. 12, 2001
6216563 Reversible ratchet wheel positioning arrangement for a reversible ratchet socket wrench Apr. 17, 2001
6206160 Ratchet transmission control mechanism for a ratcheting tool Mar. 27, 2001
6186031 Ratchet assembly for a screwdriver Feb. 13, 2001

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