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Browse by Category: Main > Tools & Hardware
Class Information
Number: 173/117
Name: Tool driving or impacting > Impacting devices (e.g., hammers) > Hammer head driven by electric motor
Description: Apparatus in which the motion of the hammer head is caused by an electric motor.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8672051 Electric hammer Mar. 18, 2014
8613328 Hand-held power tool, in particular a rotary hammer and/or chisel hammer Dec. 24, 2013
8561723 Magnetic hammer Oct. 22, 2013
RE44344 Nailer device Jul. 9, 2013
8342375 Nailer device Jan. 1, 2013
8313012 Electric driving machine Nov. 20, 2012
8297373 Impact device Oct. 30, 2012
8261850 Hand-held rotary hammer power tool Sep. 11, 2012
8240396 Tool with an oscillating head Aug. 14, 2012
8127974 Electrical motor driven nail gun Mar. 6, 2012
8109343 Multi-mode drill with mode collar Feb. 7, 2012
7987920 Multi-mode drill with mode collar Aug. 2, 2011
7971654 Rotary impact tool Jul. 5, 2011
7938195 Impact wrench with a lubricated impact mechanism May. 10, 2011
7934566 Cordless nailer drive mechanism sensor May. 3, 2011
7905377 Flywheel driven nailer with safety mechanism Mar. 15, 2011
7854274 Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing Dec. 21, 2010
7828072 Impact tool Nov. 9, 2010
7823654 Electric post driver Nov. 2, 2010
7798245 Multi-mode drill with an electronic switching arrangement Sep. 21, 2010
7789282 Nailer device Sep. 7, 2010
7717191 Multi-mode hammer drill with shift lock May. 18, 2010
7717192 Multi-mode drill with mode collar May. 18, 2010
7707710 Tool for driving wedges or slides May. 4, 2010
7705497 Power tool cooling Apr. 27, 2010
7661486 Power tool with battery pack ejector Feb. 16, 2010
7661485 Hammer drill Feb. 16, 2010
7647985 Hammer drill Jan. 19, 2010
7520414 Hand-held drive-in tool Apr. 21, 2009
7503400 Two shot power nailer Mar. 17, 2009
7500589 Electrical drive-in tool Mar. 10, 2009
7410085 Electrical drive-in tool Aug. 12, 2008
7398834 Hammer drill with selective lock-on Jul. 15, 2008
7383893 Electric hammer drill Jun. 10, 2008
7357194 Percussion power tool Apr. 15, 2008
7252155 Percussive power tool with flushing head Aug. 7, 2007
7238095 Pneumatic grinder with improved muffling structure Jul. 3, 2007
7216723 Pulse torque generator and power tool having the same May. 15, 2007
7204322 Power tool having pneumatic vibration dampening Apr. 17, 2007
7137458 Impact mechanism for a hammer drill Nov. 21, 2006
7121360 Hand-held power tool Oct. 17, 2006
7059425 Reciprocating power tool Jun. 13, 2006
6938704 Pneumatic percussive tool with a movement frequency controlled idling position Sep. 6, 2005
6918449 Magnetic impact tool Jul. 19, 2005
6907943 Electric hammer Jun. 21, 2005
6907942 Percussion tool Jun. 21, 2005
6868918 Power tool driven by linear motor Mar. 22, 2005
6866105 Electrical, fan-cooled tool Mar. 15, 2005
6854530 Method for driving electric percussion tool Feb. 15, 2005
6830173 Impact device Dec. 14, 2004

1 2 3










 
 
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