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Class Information
Number: 173/176
Name: Tool driving or impacting > Automatic control of power operated means > Drive means responsive to torque or speed condition
Description: Apparatus in which the power operated means comprises a drive means and the sensing means senses either (1) a condition of force applied to the tool to move the tool about an axis or (2) the rate of motion of the drive means.










Sub-classes under this class:

Class Number Class Name Patents
173/177 Fluid pressure change controls drive 61
173/178 Having torque responsive clutch 244
173/181 Having torque sensor 98
173/179 With speed responsive governor 38
173/180 With torque indicator 47


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
7419013 Rotary impact tool Sep. 2, 2008
7413029 Screw fastening machine Aug. 19, 2008
7413025 Torque tool Aug. 19, 2008
7410006 Power tool anti-kickback system with rotational rate sensor Aug. 12, 2008
7410007 Impact rotary tool with drill mode Aug. 12, 2008
7398700 Bolt tightening method and bolt tightening apparatus Jul. 15, 2008
7395874 Slaving and blocking device Jul. 8, 2008
7395875 Rechargeable battery-operated hand machine tool Jul. 8, 2008
7395873 Power tool Jul. 8, 2008
7395871 Method for detecting a bit jam condition using a freely rotatable inertial mass Jul. 8, 2008
7377331 Damping driving axle May. 27, 2008
7372228 Electric power tool with memory capability May. 13, 2008
7360607 Hand-held power tool with a torque-limiting unit Apr. 22, 2008
7350286 Rotational and axial power transmitting apparatus Apr. 1, 2008
7334648 Rotary impact power tool Feb. 26, 2008
7334646 Electric power tool with improved speed change gearing Feb. 26, 2008
7331406 Apparatus for controlling a fastener driving tool, with user-adjustable torque limiting control Feb. 19, 2008
7328752 Power tools Feb. 12, 2008
7311027 Electric screwdriver Dec. 25, 2007
7306046 Portable power tool Dec. 11, 2007
7237622 Pneumatic tool having pressure release device Jul. 3, 2007
7234536 Power screwdriver Jun. 26, 2007
7210878 Feed adaptation core drill May. 1, 2007
7204322 Power tool having pneumatic vibration dampening Apr. 17, 2007
7185713 Air-driven screwdriver performs hole drilling, thread tapping and bolt tightening Mar. 6, 2007
7182147 Tool apparatus, system and method of use Feb. 27, 2007
7121361 Electric power tool with improved speed change gearing Oct. 17, 2006
7093679 Foundation drilling apparatus and method with continuously variable hydraulic differential rotary table Aug. 22, 2006
7091683 Method of monitoring and controlling the seating of screws to the optimum point of grip independent of screw size and material density Aug. 15, 2006
7090031 Intelligent tightening spindle with integrated measurement transducer, servo amplifier, and data processing unit Aug. 15, 2006
7089080 Pulse tool controller Aug. 8, 2006
7055620 Hand-held machine tool Jun. 6, 2006
7040414 Pneumatic tool May. 9, 2006
7036703 Hand-held working tool May. 2, 2006
7036605 Power tools May. 2, 2006
7025151 Device for limiting a torque to be transferred Apr. 11, 2006
7021400 Power Tool Apr. 4, 2006
7011165 Rotating electric hand tool implement with safety routine Mar. 14, 2006
7000709 Side handles on drill/drivers Feb. 21, 2006
6988565 Retrofit kit for a modular control apparatus for a power impact tool Jan. 24, 2006
6983810 Electric power tool with improved speed change gearing Jan. 10, 2006
6983809 Machine tool, especially a hand machine tool Jan. 10, 2006
6981557 Process for controlling an axially hammering and rotating electric hand-held machine tool Jan. 3, 2006
6978846 Power tool used for fastening screw or bolt Dec. 27, 2005
6971454 Pulsed rotation screw removal and insertion device Dec. 6, 2005
6954682 Method and apparatus for tightening bolts Oct. 11, 2005
6948410 Torque wrench with sleeve for locking rotatable handle Sep. 27, 2005
6945337 Power impact tool Sep. 20, 2005
6918449 Magnetic impact tool Jul. 19, 2005
6913087 System and method for communicating over power terminals in DC tools Jul. 5, 2005

1 2 3 4 5 6










 
 
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