Patent
   D342270
Priority
Sep 29 1992
Filed
Sep 29 1992
Issued
Dec 14 1993
Expiry
Dec 14 2007
Assg.orig
Entity
unknown
87
3
n/a
The ornamental design for a core drill for perforating stone, as shown and described.

FIG. 1 is a front elevation view of a core drill for perforating stone showing my new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevation view thereof; and,

FIG. 6 is a perspective view thereof.

A right side elevation view thereof is omitted since it is the same one as a left side elevation view.

Kwang, Kim S.

Patent Priority Assignee Title
10010947, Jan 13 2010 Black & Decker Inc Hole cutter with multiple fulcrums
10086445, Jul 18 2012 Milwaukee Electric Tool Corporation Hole saw
10137507, Jan 13 2010 Black & Decker Inc Hole cutter with multiple fulcrums
10252352, Jan 13 2010 Black & Decker Inc Hole cutter with multiple fulcrums
10259051, Jan 13 2010 Black & Decker Inc Hole cutter with chip egress aperture
10328501, Jan 13 2010 Black & Decker Inc Hole cutter with multiple fulcrums
10399154, Jan 13 2010 Black & Decker Inc Hole cutter with multiple fulcrums
10500651, Jan 13 2010 Black & Decker Inc Hole cutter with multiple fulcrums
10500652, Jan 13 2010 Black & Decker Inc Hole cutter with multiple fulcrums
10549356, Jan 13 2010 Black & Decker Inc.; Black & Decker Inc Hole cutter with multiple fulcrums
10702975, Jan 12 2015 Boart Longyear Company Drilling tools having matrices with carbide-forming alloys, and methods of making and using same
10751811, Jul 18 2012 Milwaukee Electric Tool Corporation Hole saw
10835967, Jan 13 2010 Black & Decker Inc. Hole cutter with chip egress aperture
11084107, Jul 18 2012 Milwaukee Electric Tool Corporation Hole saw
11084108, Jul 18 2012 Milwaukee Electric Tool Corporation Hole saw
11103934, Jan 13 2010 Black & Decker Inc. Hole cutter with multiple fulcrums
11148212, Jul 10 2018 Milwaukee Electric Tool Corporation Hole saw with hex sidewall holes
11745273, Jul 18 2012 Milwaukee Electric Tool Corporation Hole saw
11845134, Jul 10 2018 Milwaukee Electric Tool Corporation Hole saw with hex sidewall holes
12059734, Jun 20 2019 Milwaukee Electric Tool Corporation Hole saw with circular sidewall openings
7828090, Dec 14 2006 Boart Longyear Company Drill bits with enclosed fluid slots and internal flutes
7874384, Dec 14 2006 Boart Longyear Company Drill bits with increased crown height
7909119, Dec 14 2006 Boart Longyear Company Drill bits with notches and enclosed slots
7918288, Dec 14 2006 Boart Longyear Company Drill bits with enclosed fluid slots and method
7958954, Dec 14 2006 Boart Longyear Company Drill bits with enclosed slots
8051929, Dec 14 2006 Boart Longyear Company Core drill bits with enclosed fluid slots
8393939, Mar 31 2009 SAINT-GOBAIN ABRASIVES, INC.; SAINT-GOBAIN ABRASIFS Dust collection for an abrasive tool
8459381, Dec 14 2006 Boart Longyear Company Drill bits with axially-tapered waterways
8568205, Aug 08 2008 SAINT-GOBAIN ABRASIVES, INC; SAINT-GOBAIN ABRASIFS Abrasive tools having a continuous metal phase for bonding an abrasive component to a carrier
8573907, Jan 13 2010 Black & Decker Inc Hole cutter with minimum tooth pitch to blade body thickness ratio
8590646, Sep 22 2009 Boart Longyear Company Impregnated cutting elements with large abrasive cutting media and methods of making and using the same
8591295, Jul 12 2010 SAINT-GOBAIN ABRASIVES, INC; SAINT-GOBAIN ABRASIFS Abrasive article for shaping of industrial materials
8597088, Dec 31 2009 SAINT-GOBAIN ABRASIVES, INC; SAINT-GOBAIN ABRASIFS Abrasive article incorporating an infiltrated abrasive segment
8701536, Jan 22 2008 SAINT-GOBAIN ABRASIVES, INC; SAINT-GOBAIN ABRASIFS Circular saw blade with offset gullets
8763617, Jun 24 2009 SAINT-GOBAIN ABRASIVES, INC; SAINT-GOBAIN ABRASIFS Material removal systems and methods utilizing foam
9028303, Jul 12 2010 SAINT-GOBAIN ABRASIVES, INC.; SAINT-GOBAIN ABRASIFS Abrasive article for shaping of industrial materials
9051786, Aug 14 2009 Boart Longyear Company Diamond impregnated bit with aggressive face profile
9074429, Dec 14 2006 Boart Longyear Company Drill bits with axially-tapered waterways
9097067, Feb 12 2009 SAINT-GOBAIN ABRASIVES, INC; SAINT-GOBAIN ABRASIFS Abrasive tip for abrasive tool and method for forming and replacing thereof
9278430, Dec 31 2009 SAINT-GOBAIN ABRASIVES, INC.; SAINT-GOBAIN ABRASIFS Abrasive article incorporating an infiltrated abrasive segment
9279292, Nov 20 2013 Boart Longyear Company Drill bits having flushing and systems for using same
9289881, Aug 08 2008 SAINT-GOBAIN ABRASIVES, INC.; SAINT-GOBAIN ABRASIFS Abrasive tools having a continuous metal phase for bonding an abrasive component to a carrier
9358619, Jan 13 2010 Irwin Industrial Tool Company Hole cutter with chip egress aperture
9500036, Dec 14 2006 Boart Longyear Company Single-waterway drill bits and systems for using same
9506298, Nov 20 2013 Boart Longyear Company Drill bits having blind-hole flushing and systems for using same
9579732, Jul 18 2012 Milwaukee Electric Tool Corporation Hole saw
9586270, Jan 13 2010 Black & Decker Inc Coated hole cutter
9724766, Jan 13 2010 Black & Decker Inc Hole cutter with multiple fulcrums
9782839, Jan 13 2010 Black & Decker Inc Hole cutter with chip egress aperture
9808869, Jan 13 2010 Black & Decker Inc Hole cutter with chip egress aperture
9884374, Sep 03 2015 Black & Decker Inc Hole cutter with multiple fulcrums
9903165, Dec 14 2006 Boart Longyear Company Drill bits with axially-tapered waterways
D466139, Nov 16 2001 Ehwa Diamond Industrial Co., Ltd. Core drill
D481045, Nov 05 2002 Ehwa Diamond Industrial Co., Ltd. Tip for core drill
D486044, Mar 17 2003 Small engine starter clutch tool
D527233, Aug 23 2004 Black & Decker Inc Colored reciprocating saw blade
D542813, Oct 25 2005 Kevin W., Rosenbaum Nut cutter
D551269, Aug 23 2004 Black & Decker Inc Hole blade
D588884, Aug 23 2004 Black & Decker Inc Colored hacksaw blade
D606820, Aug 23 2004 Black & Decker Inc Jigsaw blade
D630656, Jan 26 2010 Boart Longyear Company Drill bit
D634343, Aug 23 2004 Black & Decker Inc Hole saw blade
D647114, Dec 14 2006 Boart Longyear Company Drill bit with tapered waterway
D647115, Dec 14 2006 Boart Longyear Company Drill bit waterway
D664574, Aug 23 2004 Black & Decker Inc Hole saw blade
D690334, Jan 13 2010 Black & Decker Inc Hole saw
D692470, Jan 13 2010 Black & Decker Inc Hole saw
D711441, Jan 13 2010 Black & Decker Inc Hole saw
D752662, Aug 09 2013 Hilti Aktiengesellschaft Change module
D765159, Jan 13 2010 Black & Decker Inc Hole saw
D789428, Jan 13 2010 Black & Decker Inc Hole saw
D809030, Aug 09 2013 Hilti Aktiengesellschaft Change module
D811455, Aug 09 2013 Hilti Aktiengesellschaft Change module
D823907, Aug 09 2013 Hilti Aktiengesellschaft Change module
D831082, Aug 09 2013 Hilti Aktiengesellschaft Change module
D845362, Dec 04 2017 Black & Decker Inc Holesaw
D883350, Aug 03 2017 Hilti Aktiengesellschaft Abrasive file
D927275, Mar 06 2020 Wiper/headlight switch retaining nut removal tool
D958855, Dec 09 2019 Milwaukee Electric Tool Corporation Hole saw
D983240, Jan 11 2019 FUJIFILM Corporation Soft mold transfer container
D983848, Jan 11 2019 FUJIFILM Corporation Soft mold transfer container lid
ER2819,
ER2886,
ER339,
ER9758,
ER9762,
RE48513, Jul 18 2012 Milwaukee Electric Tool Corporation Hole saw
Patent Priority Assignee Title
4208154, Mar 21 1978 Core drill
4274769, Apr 21 1978 Acker Drill Company, Inc. Impregnated diamond drill bit construction
5069584, Jan 20 1989 HILTI AKTIENGESELLSCHAFT, FL-9494 SCHAAN, FURSTENTUM LIECHTENSTEIN Hollow drilling tool
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 08 1992KIM, SOO K EHWA DIAMOND IND CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST 0062660428 pdf
Sep 29 1992EHWA Diamond Ind. Co., Ltd.(assignment on the face of the patent)
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule