Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 175/414
Name: Boring or penetrating the earth > Bit or bit element > Impact or percussion type
Description: Apparatus in which the cutting edge of the bit is of the type which is adapted to disintegrate the formation by a forceful contact or a repetitive striking action.










Sub-classes under this class:

Class Number Class Name Patents
175/415 Combined with rotary 185
175/420 Cruciform 20
175/420.1 Insert 173
175/416 Noncircular bore cutter 8
175/417 With internal-fluid passage 87


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8640794 Pressurized fluid flow system for a normal circulation hammer and hammer thereof Feb. 4, 2014
8636088 Rock drilling machine and axial bearing module Jan. 28, 2014
8590642 Percussion hammer bit retention system Nov. 26, 2013
8544566 Fluid actuated impact tool with solid piston-standard bit arrangement and water seal Oct. 1, 2013
8347988 Down-hole hammer drill Jan. 8, 2013
8312944 Percussion hammer bit with a driver sub including a guide sleeve portion Nov. 20, 2012
8028772 Internally dampened percussion rock drill Oct. 4, 2011
7975784 Drill bit assembly for fluid-operated percussion drill tools Jul. 12, 2011
7942216 Drill rod, drill bit, and drilling tool May. 17, 2011
7938205 Boring head method and boring head for a ground boring device May. 10, 2011
7882908 Drill Feb. 8, 2011
7832504 Exhaust valve and bit assembly for down-hole percussive drills Nov. 16, 2010
7673706 Down-the-hole hammer with pilot and method of enlarging a hole Mar. 9, 2010
7624822 Thread joint Dec. 1, 2009
7546888 Percussive drill bit Jun. 16, 2009
7428938 Percussion bit drill drive collar with retention mechanism and method of assembling Sep. 30, 2008
7419017 Multi-sectional percussive drill bit assembly Sep. 2, 2008
7419018 Cam assembly in a downhole component Sep. 2, 2008
7392863 Rock drill bit Jul. 1, 2008
7377338 Downhole percussion tool May. 27, 2008
7325633 Rock drill bit and a thread joint therefor Feb. 5, 2008
7281594 Rock drill bit Oct. 16, 2007
7185721 Male portion, drill bit and threaded joint for percussive rock drilling Mar. 6, 2007
7159676 Fluid distributor device for down-hole-drills Jan. 9, 2007
7152699 Connection rod and method for production thereof Dec. 26, 2006
7093677 Percussion drill head Aug. 22, 2006
7059432 Cup-shaped rock drill head Jun. 13, 2006
6926104 Drill crown Aug. 9, 2005
6854538 Rock drill Feb. 15, 2005
6845827 Rock drill head Jan. 25, 2005
6827162 Self-retaining downhole-hammer drill bit Dec. 7, 2004
6810974 Quick release drill bit for down-hole drills Nov. 2, 2004
6789632 Rock drilling apparatus Sep. 14, 2004
6698537 Bit retention system Mar. 2, 2004
6658968 Percussive rock drill bit and buttons therefor and method for manufacturing drill bit Dec. 9, 2003
6571890 Twist drill Jun. 3, 2003
6557653 Working tool for a percussion power tool May. 6, 2003
6543558 Drilling and/or chiseling tool Apr. 8, 2003
6508318 Percussive rock drill bit and buttons therefor and method for manufacturing drill bit Jan. 21, 2003
6431292 Device for drilling and draining holes in soil or rock Aug. 13, 2002
6397956 Directional drilling tool Jun. 4, 2002
6394190 Corrosion-resistant thread joint for percussion drill element and method of achieving such resistance May. 28, 2002
6334493 Corrosion-resistant thread joint for percussion drill element and method of achieving such resistance Jan. 1, 2002
6257673 Percussion tool for boom mounted hammers Jul. 10, 2001
6253864 Percussive shearing drill bit Jul. 3, 2001
6202768 Rock drilling tool and reamer for percussive drilling Mar. 20, 2001
6182776 Overburden drilling apparatus having a down-the-hole hammer separatable from an outer casing/drill bit unit Feb. 6, 2001
6105693 Partially enhanced percussive drill bit Aug. 22, 2000
6073710 Combination drilling member Jun. 13, 2000
6070678 Bit retention system Jun. 6, 2000

1 2










 
 
  Recently Added Patents
Method and apparatus for over-the-air activation of neighborhood cordless-type services
Plants and seeds of corn variety CV092363
Electronic time stamping apparatus for use with an inground transmitter
Hot-press cushion material and manufacturing method of the same
System and method for distributed security
Materials for organic electroluminescent devices containing substituted 10-benzo[c]phenanthrenes
Reconfigurable barrel shifter and rotator
  Randomly Featured Patents
Method of using water soluble cationic polymers in membrane biological reactors
MMIC semiconductor device with WN.sub.x capacitor electrode
Quadrifilar helix antenna
Carbon or graphite article and method of making by impregnating with a lignin sulfonate complex
Method of manufacturing a semiconductor device and apparatus to be used therefore
Device for perfecting a golfer's swing
Process for producing trimellitic acid
Pistol grip
Method and apparatus for color identification
Partition trim