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Class Information
Number: 173/178
Name: Tool driving or impacting > Automatic control of power operated means > Drive means responsive to torque or speed condition > Having torque responsive clutch
Description: Apparatus wherein a device to engage or to disengage the connection between the drive means and the power means is provided and operates in response to a change in the force applied to the tool to move the tool about an axis.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8684105 Power tool Apr. 1, 2014
8657031 Universal control module Feb. 25, 2014
8651199 Automatic transmission for a power tool Feb. 18, 2014
8641536 Tool bit or tool holder for power tool Feb. 4, 2014
8636079 Method of operating a rotary tool Jan. 28, 2014
8607891 Electrical power tool Dec. 17, 2013
8584770 Spindle bearing arrangement for a power tool Nov. 19, 2013
8499850 Screwdriving power tool with an axially operated percussion mechanism Aug. 6, 2013
8469115 Electrical power tool Jun. 25, 2013
8459525 Motorized surgical cutting and fastening instrument having a magnetic drive train torque limiting device Jun. 11, 2013
8430185 Impact torque adjusting device of hydraulic torque wrench Apr. 30, 2013
8387719 Mechanical assembly for a power tool Mar. 5, 2013
8322459 Pneumatic power tool Dec. 4, 2012
8316958 Control scheme for detecting and preventing torque conditions in a power tool Nov. 27, 2012
8316959 Hand-held power tool, in particular cordless power tool Nov. 27, 2012
8307911 Torque system of power tool Nov. 13, 2012
8220561 Power tool with torque clutch Jul. 17, 2012
8205685 Housing and gearbox for drill or driver Jun. 26, 2012
8172003 Overload protection device and machine tool having such overload protection device May. 8, 2012
8172004 Automatic transmission for a power tool May. 8, 2012
8146463 Screw driver Apr. 3, 2012
8146676 Multifunctional power tool Apr. 3, 2012
8136607 Device having a torque-limiting unit Mar. 20, 2012
8122971 Impact rotary tool with drill mode Feb. 28, 2012
8104546 Hand-held power tool with torque limiter Jan. 31, 2012
8087474 Hammer drill Jan. 3, 2012
8083006 Hand-held power tool Dec. 27, 2011
8074731 Impact tool Dec. 13, 2011
8066082 Air driver device Nov. 29, 2011
8051920 Impact drill Nov. 8, 2011
8006776 Sliding pressure control valve for pneumatic hammer drill Aug. 30, 2011
8002098 Torque responsive release clutch for a power nutrunner Aug. 23, 2011
7987922 Automatic gear shifting power tool Aug. 2, 2011
7980324 Housing and gearbox for drill or driver Jul. 19, 2011
7900713 Main shaft locking mechanism Mar. 8, 2011
7900714 Power tool with torque clutch Mar. 8, 2011
7896097 Electric power tool Mar. 1, 2011
7861797 Hand-held machine tool with slip clutch Jan. 4, 2011
7828074 Hammer drill Nov. 9, 2010
7806200 Power tool with a slip clutch Oct. 5, 2010
7762349 Multi-speed drill and transmission with low gear only clutch Jul. 27, 2010
7753248 Surgical instrument with flexible drive mechanism Jul. 13, 2010
7712546 Power tool having torque limiter May. 11, 2010
7694750 Hammer drill Apr. 13, 2010
7673702 Impact wrench Mar. 9, 2010
7665392 Tightening tool Feb. 23, 2010
7658239 Power tool, drive assembly, and method of operating the same Feb. 9, 2010
7658238 Impact drill Feb. 9, 2010
7644783 Power tool gear-train and torque overload clutch therefor Jan. 12, 2010
7591326 Power tool Sep. 22, 2009

1 2 3 4 5










 
 
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