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Patent
   D574403
Priority
Mar 09 2007
Filed
Mar 09 2007
Issued
Aug 05 2008
Expiry
Aug 05 2022
Inventors
Brady, Wil…
Assg.orig
THE WILLIA…
Assg.curr
The Willia…
Entity
unknown
Referenced by
16
References
28
Maint.:
n/a
The ornamental design for a hard rock percussion drill bit with paraboloid PCD inserts, as shown and described.

FIG. 1 is a greatly enlarged side elevational view of a hard rock percussion drill bit embodying the invention.

FIG. 2 is a top plan view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is a side elevation thereof, as rotated 90° from the FIG. 1 position, and partially fragmented and broken away to illustrate the interiorly threaded bore at the bottom end; and,

FIG. 5 is a perspective view of thereof.
INVENTORS:

Brady, William J.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
10907417, Jan 22 2008 VICTOR MILLER Polycrystalline diamond chisel type insert for use in percussion drill bits even for use in large hole percussion drilling of oil wells
8641336, Aug 12 2011 Tool holder and cutting tool
9551189, Jan 22 2008 WMB - LLC Polycrystalline diamond percussion drill bits using low thrust and torque for application with small diameter drill bits
D682325, Jan 30 2012 DIAMOND INNOVATIONS INC Drill bit
D682326, Jan 30 2012 Sandvik Intellectual Property AB; Diamond Innovations Inc. Drill bit
D705827, Sep 07 2012 Sandvik Intellectual Property AB Drill bit for percussive drilling
D725164, Jul 25 2013 Padley & Venables Limited Percussive drill bit
D818507, Feb 28 2017 KENNAMETAL INC Replaceable tip for a rotatable cutting tool
D828415, Jul 14 2016 MMC RYOTEC CORPORATION Drill bit tip
D828416, Jul 14 2016 MMC RYOTEC CORPORATION Drill bit tip
D832318, Jul 14 2016 MMC RYOTEC CORPORATION Drill bit tip
D861051, Mar 13 2018 ROBIT OYJ Drill bit
D870168, Mar 13 2018 ROBIT OYJ Drill bit
D875147, May 10 2018 SEED TECHNOLOGIES CORP., LTD. Drill bit
ER8006,
ER8909,
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2725216,
3258077,
3952819, Mar 10 1975 A & W Deep-Well Drilling, Inc. Fatigue resistant anvil bit for percussion rock drill
3955635, Feb 03 1975 Percussion drill bit
4022287, Apr 20 1976 SANTRADE LTD , A CORP OF SWITZERLAND Percussion drill bit
4051912, Feb 03 1976 Western Rock Bit Company Limited Percussion drill bit
4106578, May 04 1976 Percussion drill bit
4296825, Nov 25 1977 SANTRADE LTD , A CORP OF SWITZERLAND Rock drill
4304312, Jan 11 1980 SANTRADE LTD , A CORP OF SWITZERLAND Percussion drill bit having centrally projecting insert
4716976, Oct 28 1986 KENNAMETAL PC INC Rotary percussion drill bit
4771834, Mar 08 1986 Percussion drill bit for rock perforators
5575342, May 26 1995 Sandvik Intellectual Property Aktiebolag Percussion drill bit, an insert for use therein and a method of drilling a bore
5743345, Jul 30 1996 Ingersoll-Rand Company Drill bit for reverse drilling
5794728, Dec 20 1996 Sandvik AB Percussion rock drill bit
5947215, Nov 06 1997 Sandvik AB Diamond enhanced rock drill bit for percussive drilling
5984030, Mar 27 1995 Sandvik AB Rock drilling tool, drill bit and a method of transferring percussive energy
6276467, Oct 25 1999 Driltech Mission LLC Percussive rock drill bit with asymmetric wing
6655480, Oct 05 2000 Kennametal, Inc Cutting insert for percussion drill bit
6658968, Nov 25 1999 Sandvik Intellectual Property Aktiebolag Percussive rock drill bit and buttons therefor and method for manufacturing drill bit
6938710, Jun 27 2003 Sandvik Intellectual Property Aktiebolag Bit head retaining system and method of installing a bit head in a percussion drill
7325633, Aug 17 2004 Sandvik Intellectual Property AB Rock drill bit and a thread joint therefor
20010003318,
20040050592,
20040069540,
20050161264,
D496948, Jun 12 2003 Square drill bit
D524333, Apr 27 2004 APERGY BMCS ACQUISITION CORPORATION Heavy duty hard rock drill tool
RE30952, Feb 03 1976 SHANGHAI BAOSHENG DRILLING TOOL CO LTD Percussion drill bit
ASSIGNMENT RECORDS    Assignment records on the USPTO
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 05 2007BRADY, WILLIAM J THE WILLIAM J BRADY LOVING TRUSTASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0189860412 pdf
Mar 09 2007The William J. Brady Loving Trust(assignment on the face of the patent)
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