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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:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 7090031 |
Intelligent tightening spindle with integrated measurement transducer, servo amplifier, and data processing unit |
Aug. 15, 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 |
| 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 |
| 6892826 |
Processes of determining torque output and controlling power impact tools using a torque transducer |
May. 17, 2005 |
| 6854529 |
Optimizing method for regulating the operating state of a guided machine tool comprising a rotating percussion tool during a boring process |
Feb. 15, 2005 |
| 6851343 |
Screwdriver |
Feb. 8, 2005 |
| 6848516 |
Processes of determining torque output and controlling power impact tools using a torque transducer |
Feb. 1, 2005 |
| 6845825 |
Method and apparatus for attaching/detaching drill rod |
Jan. 25, 2005 |
| 6843326 |
Method and apparatus for determining when a fastener is tightened to a predetermined tightness by a pulse output tightening tool, and a pulsed output tightening tool incorporating the apparatu |
Jan. 18, 2005 |
| 6843327 |
Manual machine tool |
Jan. 18, 2005 |
| 6843141 |
Hand-held power tool with a torque cut-off device |
Jan. 18, 2005 |
| 6836614 |
Electrical power tool having a motor control circuit for providing control over the torque output of the power tool |
Dec. 28, 2004 |
| 6814152 |
Target torque detection at power wrenches having mechanical release clutch |
Nov. 9, 2004 |
| 6814158 |
Hand-guided drilling or percussion drilling machine |
Nov. 9, 2004 |
| 6799644 |
Pneumatic percussive mechanism |
Oct. 5, 2004 |
| 6782957 |
Air impact driver |
Aug. 31, 2004 |
| 6782594 |
Method and apparatus for auditing a tension load in the threaded fastener |
Aug. 31, 2004 |
| 6785591 |
Method for determining optimum screw joint tightening parameter values by process simulation |
Aug. 31, 2004 |
| 6776244 |
Side handles on drill/drivers |
Aug. 17, 2004 |
| 6765357 |
Impact tool control method and apparatus and impact tool using the same |
Jul. 20, 2004 |
| 6761229 |
Impact tool control apparatus and impact tool using the same |
Jul. 13, 2004 |
| 6715562 |
Output shaft locking device |
Apr. 6, 2004 |
| 6705410 |
Electrical hand-held power tool with a safety clutch |
Mar. 16, 2004 |
| 6687567 |
Power tools |
Feb. 3, 2004 |
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