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Class Information
Number: 81/63.1
Name: Tools > Wrench, screwdriver, or driver therefor > Handle clutched to head > One-way detent drive, e.g., ratchet > Reversing
Description: Wrench or screwdriver provided with means whereby the direction of driving can be selectively reversed.










Sub-classes under this class:

Class Number Class Name Patents
81/63.2 Single pawl 265


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8683893 Ratchet wrench Apr. 1, 2014
8683894 Positioning structure for a ratchet wrench Apr. 1, 2014
8661947 Three-mode direction-changeable ratchet wrench Mar. 4, 2014
8635932 Easy assembled ratchet wrench Jan. 28, 2014
8616095 Ratchet hand tool without use of switching member Dec. 31, 2013
8613350 Infinitely variable wrench Dec. 24, 2013
RE44655 Bias assembly for ratchet tools Dec. 24, 2013
8567287 Reversible open-ended ratchet wrench Oct. 29, 2013
8544365 Ratchet tool Oct. 1, 2013
8516926 Ratchet wrench Aug. 27, 2013
8516928 Ratchet wrench preventing jam of pawls Aug. 27, 2013
8499666 Dual pawl ratchet mechanism and reversing method Aug. 6, 2013
8490521 Ratchet tool Jul. 23, 2013
8474351 Ratchet wrench Jul. 2, 2013
8468915 Compact tool box with ratchet driving function Jun. 25, 2013
8434390 Flexible threading system May. 7, 2013
8413550 Dustproof device for ratchet wrench Apr. 9, 2013
8408098 Ratchet device Apr. 2, 2013
8397606 Ratchet wrench with a reduced head Mar. 19, 2013
8347760 Ratchet device with stable structure Jan. 8, 2013
8342059 Dustproof seal for ratchet wrench Jan. 1, 2013
8297152 Ratchet wrench Oct. 30, 2012
8291792 Rachet wrench Oct. 23, 2012
8272298 Steering device for a ratchet screwdriver Sep. 25, 2012
8261636 Quick-turn wrench Sep. 11, 2012
8261637 Redirection structure of ratchet wrench Sep. 11, 2012
8250947 Ratchet wrench Aug. 28, 2012
8245602 Ratchet wrench Aug. 21, 2012
8215207 Ratchet wrench Jul. 10, 2012
8210073 Ratchet wrench Jul. 3, 2012
8210074 Dismantling device Jul. 3, 2012
RE43286 Ratchet wheel with asymmetric arcuate concave teeth or non-arcuate concave teeth ratcheting tools with such ratchet wheel and combination of such ratchet wheel and a pawl Apr. 3, 2012
8122791 Three-way ratchet drive mechanism Feb. 28, 2012
8109180 Dustproof ring for ratchet wrench Feb. 7, 2012
8109182 Ratchet tool Feb. 7, 2012
8096214 Ratcheting head with internal self-locking adapter related applications Jan. 17, 2012
8047101 Wrench Nov. 1, 2011
RE42816 Dual function retainer for a ratcheting wrench Oct. 11, 2011
RE42768 Robust wrench Oct. 4, 2011
7987747 Bias assembly for ratchet tools Aug. 2, 2011
7975574 Ratchet wrench with switch moving in transverse direction Jul. 12, 2011
7942253 Thumb-actuated handle device May. 17, 2011
7926391 Screwdriver with ratchet mechanism Apr. 19, 2011
7926390 Coupling device with configurable actuator Apr. 19, 2011
7921751 Easy-to-manufacture ratchet wrench Apr. 12, 2011
7895921 Ratchet tool Mar. 1, 2011
7895922 Ratchet wrench Mar. 1, 2011
7836798 Ratchet wrench with three operational positions Nov. 23, 2010
7827886 Ratchet wrench with three operative positions Nov. 9, 2010
7802498 Ratchet wrench with three operative positions Sep. 28, 2010

1 2 3 4 5 6










 
 
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