Patent
   D371146
Priority
Oct 12 1994
Filed
Apr 12 1995
Issued
Jun 25 1996
Expiry
Jun 25 2010
Assg.orig
Entity
unknown
6
7
n/a
The ornamental design for an asymmetrical button insert for rock drilling, as shown.

FIG. 1 is a right side view of an asymmetrical button insert for rock drilling showing our new design;

FIG. 2 is a side view of the asymmetrical button insert for rock drilling taken at 90° of the view of FIG. 1;

FIG. 3 is a front end view of the asymmetrical button insert for rock drilling;

FIG. 4 is a perspective view, taken from the right side and sightly above, of the asymmetrical button insert for rock drilling; and,

FIG. 5 is a perspective view showing the opposite side of the asymmetrical button insert for rock drilling shown in FIG. 4.

Fischer, Udo, Hartzell, Torbjorn, Karki, Kauko

Patent Priority Assignee Title
11655681, Dec 06 2018 Halliburton Energy Services, Inc.; Halliburton Energy Services, Inc Inner cutter for drilling
D436799, Jun 11 1999 Egg knot twist roll maker
D712941, Jun 27 2012 Diamond cutter
D842708, Jun 09 2017 Tomia Beauty Brands, LLC Cosmetics case
D882701, Jan 23 2019 P&P Imports LLC Game piece for a table game
D911399, Dec 06 2018 Halliburton Energy Services, Inc.; Halliburton Energy Services, Inc Innermost cutter for a fixed-cutter drill bit
Patent Priority Assignee Title
4359335, Jun 05 1980 Smith International, Inc. Method of fabrication of rock bit inserts of tungsten carbide (WC) and cobalt (Co) with cutting surface wear pad of relative hardness and body portion of relative toughness sintered as an integral composite
4722405, Oct 01 1986 Halliburton Energy Services, Inc Wear compensating rock bit insert
5172777, Sep 26 1991 Smith International, Inc. Inclined chisel inserts for rock bits
5172779, Nov 26 1991 Smith International, Inc.; SMITH INTERNATIONAL, INC A CORP OF DELAWARE Radial crest insert
5421424, Jun 09 1994 Smith International, Inc. Bowed out chisel insert for rock bits
D357485, Feb 24 1993 Sandvik Intellectual Property Aktiebolag Insert for rock drilling bits
D357486, Feb 24 1993 Sandvik Intellectual Property Aktiebolag Insert for rocking drilling bits
//////
Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 31 1995FISCHER, UDOSandvik ABASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0074320137 pdf
Mar 31 1995HARTZELL, TORBJORNSandvik ABASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0074320137 pdf
Apr 04 1995KARKI, KAUKOSandvik ABASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0074320137 pdf
Apr 12 1995Sandvik AB(assignment on the face of the patent)
May 16 2005Sandvik ABSANDVIK INTELLECTUAL PROPERTY HBASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0162900628 pdf
Jun 30 2005SANDVIK INTELLECTUAL PROPERTY HBSandvik Intellectual Property AktiebolagASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0166210366 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule