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Browse by Category: Main > Tools & Hardware
Class Information
Number: 173/211
Name: Tool driving or impacting > Impacting devices (e.g., hammers) > With impact cushioning means > Mechanical spring
Description: Apparatus wherein the impact cushioning means is a resilient element that recovers its shape after being stretched or compressed.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8678104 Handheld power tool Mar. 25, 2014
8668026 Power tool comprising a dynamic vibration reducer Mar. 11, 2014
8651464 Resilient returning device for a power operated piston tool Feb. 18, 2014
8584769 Vibration reduction handle assembly for a hammer drill Nov. 19, 2013
8561716 Power tool Oct. 22, 2013
8434565 Hand-held power tool May. 7, 2013
8413742 Impact tool Apr. 9, 2013
8347981 Power tool Jan. 8, 2013
8316962 Impact tool Nov. 27, 2012
8272453 Handheld power tool Sep. 25, 2012
8261854 Reciprocating tool Sep. 11, 2012
8240394 Hammer with vibration reduction mechanism Aug. 14, 2012
8196675 Impact hammer with pre-pressing damping and buffering effect Jun. 12, 2012
8181715 Power tool May. 22, 2012
8113296 Anti-rotation device for an impact tool Feb. 14, 2012
8109183 Impact resistant tool bit and tool bit holder Feb. 7, 2012
8051922 Hand-held power tool with vibration compensator Nov. 8, 2011
8011443 Striking mechanism for a handheld power tool Sep. 6, 2011
8006778 Handheld power tool Aug. 30, 2011
7922059 Hand-held drive-in power tool Apr. 12, 2011
7896103 Power tool housing support structures Mar. 1, 2011
7878264 Hand-held power tool Feb. 1, 2011
7832498 Impact tool Nov. 16, 2010
7819203 Striking tool Oct. 26, 2010
7806201 Power tool with dynamic vibration damping Oct. 5, 2010
7766096 Electrical power tool Aug. 3, 2010
7677325 Pneumatic tool Mar. 16, 2010
7658238 Impact drill Feb. 9, 2010
7637328 Electrical power tool having vibration control mechanism Dec. 29, 2009
7628222 Breaker mounting bracket Dec. 8, 2009
7614464 Rock drill machine Nov. 10, 2009
7614460 Impact tool with a movably supported impact mechanism Nov. 10, 2009
7610968 Powered hand tool Nov. 3, 2009
7610967 Hand-held power tool with a decoupling device Nov. 3, 2009
7540336 Vibration isolator for a pneumatic pole or backfill tamper Jun. 2, 2009
7513407 Counterforce-counteracting device for a nailer Apr. 7, 2009
7438140 Shock attenuating device for a rotary impact tool Oct. 21, 2008
7416031 Impact tool Aug. 26, 2008
7413030 Pneumatic hammer drill having vibration damping end cap Aug. 19, 2008
7410008 Ground rod driver Aug. 12, 2008
7401662 Powered hand tool Jul. 22, 2008
7357195 Power tool and gear unit assembled therein Apr. 15, 2008
7293361 Hand tool for chopping ice Nov. 13, 2007
7287679 Powder activated setting tool piston retainer arrangement and method Oct. 30, 2007
7213659 Impact drill May. 8, 2007
7143840 Impact tool Dec. 5, 2006
7131563 Nail driver bumper Nov. 7, 2006
7124840 Engine breaker Oct. 24, 2006
7070009 Vibration isolation mount system (ISO) Jul. 4, 2006
7059423 Jackhammer system Jun. 13, 2006

1 2 3 4










 
 
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