Patent
   D682898
Priority
Nov 11 2010
Filed
May 06 2011
Issued
May 21 2013
Expiry
May 21 2027
Assg.orig
Entity
unknown
9
12
n/a
The ornamental design for a drill head for deep hole drilling, as shown and described.

FIG. 1 is a front perspective view of the drill head design.

FIG. 2 is a front elevational view of the drill head design.

FIG. 3 is a rear elevational view of the drill head design.

FIG. 4 is a left side elevational view of the drill head design.

FIG. 5 is a right side elevational view of the drill head design.

FIG. 6 is a top view of the drill head design; and,

FIG. 7 is a bottom view of the drill head design.

The broken line showing on the drawing disclosure is for illustrative purposes only and forms no part of the claimed design.

Fujii, Katsushi

Patent Priority Assignee Title
11655681, Dec 06 2018 Halliburton Energy Services, Inc.; Halliburton Energy Services, Inc Inner cutter for drilling
D700922, Aug 26 2013 Overburden pilot bit
D735784, Jul 19 2013 Element Six Limited Mill tool
D735785, Jul 19 2013 Element Six Limited Mill tool
D736279, Jul 19 2013 Element Six Limited Mill tool
D816745, Oct 16 2015 SUGINO MACHINE LIMITED Reaming and burnishing tool
D859482, Aug 22 2017 SUGINO MACHINE LIMITED Roller burnishing tool for machine tool
D892868, Aug 17 2017 Downhole Products Limited Tubing shoe
D911399, Dec 06 2018 Halliburton Energy Services, Inc.; Halliburton Energy Services, Inc Innermost cutter for a fixed-cutter drill bit
Patent Priority Assignee Title
4076445, Nov 04 1975 Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress KG Multiple blade reamer
7645102, Jun 06 2005 Unitac, Inc. Drill head for deep hole machining
8347988, Aug 21 2007 Airdrill Hammers and Bits Pty Ltd Down-hole hammer drill
20100040425,
20110280675,
20130051944,
D496948, Jun 12 2003 Square drill bit
D504141, Jun 12 2003 Driver drill bit
D525634, Feb 05 2003 Sandvik Tamrock Oy Shank adapter of rock drilling machine
D639320, Jun 02 2010 SECO TOOLS AB Drilling tool tip
D649988, Jun 02 2010 SECO TOOLS AB Drilling tool tip
JP2008334663,
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
May 06 2011AYABO CORPORATION(assignment on the face of the patent)
May 25 2011FUJII, KATSUSHIAYABO CORPORATIONASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0263890172 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule