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Patent
   D264217
Priority
Jul 17 1979
Filed
Jul 17 1979
Issued
May 04 1982
Expiry
May 04 1996
Inventors
Prause, Be…
Assg.orig
Assg.curr
Entity
unknown
Referenced by
24
References
5
Maint.:
n/a
The ornamental design for a drill bit protector, as shown.

FIG. 1 is a front perspective view of the drill bit protector;

FIG. 2 is a side perspective view thereof;

FIG. 3 is a top plan view thereof; and

FIG. 4 is a bottom plan view thereof taken along line 4--4 of FIG. 1.
INVENTORS:

Prause, Benjiman G., Marlow, Hollis

THIS PATENT IS REFERENCED BY THESE PATENTS:
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10029391, Oct 26 2006 Schlumberger Technology Corporation High impact resistant tool with an apex width between a first and second transitions
10378288, Aug 11 2006 Schlumberger Technology Corporation Downhole drill bit incorporating cutting elements of different geometries
8215420, Aug 11 2006 HALL, DAVID R Thermally stable pointed diamond with increased impact resistance
8434573, Aug 11 2006 Schlumberger Technology Corporation Degradation assembly
8540037, Apr 30 2008 Schlumberger Technology Corporation Layered polycrystalline diamond
8567532, Aug 11 2006 Schlumberger Technology Corporation Cutting element attached to downhole fixed bladed bit at a positive rake angle
8590644, Aug 11 2006 Schlumberger Technology Corporation Downhole drill bit
8622155, Aug 11 2006 Schlumberger Technology Corporation Pointed diamond working ends on a shear bit
8701799, Apr 29 2009 Schlumberger Technology Corporation Drill bit cutter pocket restitution
8714285, Aug 11 2006 Schlumberger Technology Corporation Method for drilling with a fixed bladed bit
8931854, Apr 30 2008 Schlumberger Technology Corporation Layered polycrystalline diamond
9051795, Aug 11 2006 Schlumberger Technology Corporation Downhole drill bit
9068410, Oct 26 2006 Schlumberger Technology Corporation Dense diamond body
9366089, Aug 11 2006 Schlumberger Technology Corporation Cutting element attached to downhole fixed bladed bit at a positive rake angle
9708856, Aug 11 2006 Smith International, Inc. Downhole drill bit
9915102, Aug 11 2006 Schlumberger Technology Corporation Pointed working ends on a bit
D545184, Dec 16 2005 Shimano Inc.; Shimano Inc Quick release nut for a bicycle hub
D554162, Mar 27 2007 Schlumberger Technology Corporation Diamond enhanced cutting element
D926843, Feb 15 2019 Sandvik Mining and Construction Oy Pressure accumulator for rock drills
D982046, Oct 16 2020 SF DIAMOND CO., LTD. Drill bit
D982631, Oct 16 2020 SF DIAMOND CO., LTD. Drill bit
D982632, Oct 16 2020 SF DIAMOND CO., LTD. Drill bit
D989826, Oct 16 2020 SF DIAMOND CO., LTD. Drill bit
D989827, Oct 16 2020 SF DIAMOND CO., LTD. Drill bit
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1617554,
1652283,
2395751,
2480399,
208399,
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