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Browse by Category: Main > Tools & Hardware
Class Information
Number: 173/93.6
Name: Tool driving or impacting > Impacting devices (e.g., hammers) > With anvil arranged to transmit torsional impact to tool > Rotary tool drive having torque responsive impact > Hammer head reciprocates along rotary axis
Description: Apparatus in which the hammer head reciprocates on a line coincident with or parallel to the axis of rotation of the tool.










Patents under this class:

Patent Number Title Of Patent Date Issued
8353360 Pile driver Jan. 15, 2013
8191649 Impact screwdriver having a shaft locking device Jun. 5, 2012
8122971 Impact rotary tool with drill mode Feb. 28, 2012
8069929 Impact tool Dec. 6, 2011
8042621 Impact mechanism for an impact wrench Oct. 25, 2011
7980321 Anvil for a power tool Jul. 19, 2011
7931095 Hammer drill Apr. 26, 2011
7918286 Impact tool Apr. 5, 2011
7673702 Impact wrench Mar. 9, 2010
7607492 Electric motor impact tool Oct. 27, 2009
7562720 Electric motor impact tool Jul. 21, 2009
7533889 Fitting device for a machine tool with a tool holder, and a tool holder May. 19, 2009
7410007 Impact rotary tool with drill mode Aug. 12, 2008
7377019 Method and apparatus for fastening together structural components May. 27, 2008
7237622 Pneumatic tool having pressure release device Jul. 3, 2007
7182149 Pneumatic wrench having reinforced strength Feb. 27, 2007
7152695 Power tool with air seal and vibration dampener Dec. 26, 2006
7147063 Double-ram striker assembly Dec. 12, 2006
7083003 Power tool with detachable drive end Aug. 1, 2006
7025149 Power tool with detachable drive end Apr. 11, 2006
7011156 Percussion tool and method Mar. 14, 2006
6938526 Impact wrench having an improved anvil to square driver transition Sep. 6, 2005
6889778 Rotary tool May. 10, 2005
6863134 Rotary tool Mar. 8, 2005
6782956 Drive system having an inertial valve Aug. 31, 2004
6708779 Reverse apparatus for air impact wrench Mar. 23, 2004
6666283 Hand held power tool Dec. 23, 2003
6609577 Percussive rotational impact hammer Aug. 26, 2003
6561284 Reverse apparatus for air impact wrench May. 13, 2003
6491112 Driving tool for fastening fasteners Dec. 10, 2002
6491111 Rotary impact tool having a twin hammer mechanism Dec. 10, 2002
6370993 Spring loaded self actuating impact driver Apr. 16, 2002
6227308 Reversible impact mechanism with structure limiting hammer travel May. 8, 2001
6223834 Impact structure for impact power tool May. 1, 2001
6158526 Reversible impact mechanism with structure limiting hammer travel Dec. 12, 2000
6003618 Twin lobe impact mechanism Dec. 21, 1999
5908076 Impact tool driver Jun. 1, 1999
5673758 Low-noise impact screwdriver Oct. 7, 1997
5199505 Rotary impact tool Apr. 6, 1993
4919216 Automatic impact driver Apr. 24, 1990
4821611 Tightening device Apr. 18, 1989
4811797 Impact wrench Mar. 14, 1989
4592560 Removable tool holder for a hand-held drilling device or the like Jun. 3, 1986
4450919 Drill attachment May. 29, 1984
4350213 Impact wrench Sep. 21, 1982
4232750 Impact wrench with a rotary tool drive Nov. 11, 1980
4191264 Impact wrench Mar. 4, 1980
4063601 Rotary impact tool Dec. 20, 1977











 
 
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