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Class Information
Number: 173/221
Name: Tool driving or impacting > Means to drive tool about an axis > Fluid motor > With manual means to control motor
Description: Apparatus wherein a means is provided that is directly actuable by an operator of the tool to regulate the motor.

Patents under this class:

Patent Number Title Of Patent Date Issued
8701793 Power tool guard Apr. 22, 2014
8602125 Switch arrangement for controlling operation of a motor of a power tool Dec. 10, 2013
8375832 Compact one touch pneumatic wrench Feb. 19, 2013
8251156 Compliant shifting mechanism for right angle drill Aug. 28, 2012
7942617 Nose tip control for cordless high speed rotary tool May. 17, 2011
7461704 Airflow control structure for pneumatic tools Dec. 9, 2008
7036795 Valve apparatus for air tool May. 2, 2006
6935437 Air drill Aug. 30, 2005
6918451 Brake band and portable trimmer Jul. 19, 2005
6702038 Hydraulic motor Mar. 9, 2004
6644420 Compressed air tool Nov. 11, 2003
6640444 Portable trimmer with brake device for cutter Nov. 4, 2003
6250399 Pneumatic tool with a reverse valve having an overdrive Jun. 26, 2001
6167973 Trimming machine having braking device for cutting blade Jan. 2, 2001
6062323 Pneumatic tool with increased power capability May. 16, 2000
6047780 Speed adjusting apparatus for a pneumatically driven power tool Apr. 11, 2000
5918686 Pneumatic rotary tool Jul. 6, 1999
5591070 Air tool with exhaust diverting valve Jan. 7, 1997
5588903 Ergonomic power tool Dec. 31, 1996
5346024 Tool construction Sep. 13, 1994
4772186 Automatic fluid torque responsive shut-off mechanism for an air tool Sep. 20, 1988
4630688 Power spinner for rotating a kelly joint Dec. 23, 1986
4380270 Tool device Apr. 19, 1983
4154309 Housing for fluid actuated hand tool May. 15, 1979
4109735 Rotary surgical driver Aug. 29, 1978
3989113 Pneumatic tool having a reverse air control valve with an integral regulator Nov. 2, 1976

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