US Patent No: 5,180,022

Number of patents in Portfolio can not be more than 2000

Rotary mining tools

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A rotary mining tool having a steel body adapted to be driven axially and turned in a rotational arc relative to its axis and being provided with a hardened wear surface with a cutting edge adapted for cutting engagement with a work area under the axial thrust of said tool body, the wear surface and cutting edge being constructed and arranged with a negative rake angle and a negative skew angle to position the wear surface for such cutting engagement under substantially total compression to thereby minimize tensile shear forces that would tend to break or crack the hardened wear surface.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DOVER BMCS ACQUISITION CORP.OREM, UT23
WILLIAM J. BRADY LOVING TRUST, THECREVE COEUR, MO20
BRADY, SHERRY H., TRUSTEES, OR THEIR SUCESSORS IN TRUST, UNDER THE WILLIAM J. BRADY LIVING TRUST, DATED JUNE 26, 1993, AND ANY AMENDMENTS THERETOST LOUIS, MO1

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brady, William J Creve Coeur, MO 34 569

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SMITH INTERNATIONAL, INC. (5)
* 4,359,335 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 102 1980
* 4,604,106 Composite polycrystalline diamond compact 315 1985
* 4,694,918 Rock bit with diamond tip inserts 204 1986
* 4,751,972 Revolving cutters for rock bits 44 1987
* 4,858,707 Convex shaped diamond cutting elements 68 1988
 
SII MEGADIAMOND, INC. (2)
* 4,525,178 Composite polycrystalline diamond 98 1984
* 4,570,726 Curved contact portion on engaging elements for rotary type drag bits 81 1985
 
AMOCO CORPORATION (1)
* 4,932,484 Whirl resistant bit 78 1989
 
BOYLES BROTHERS DRILLING CO. (1)
* 4,352,400 Drill bit 48 1980
 
BRADY, SHERRY H., TRUSTEES, OR THEIR SUCESSORS IN TRUST, UNDER THE WILLIAM J. BRADY LIVING TRUST, DATED JUNE 26, 1993, AND ANY AMENDMENTS THERETO (1)
* 4,682,987 Method and composition for producing hard surface carbide insert tools 129 1985
 
DIAMOND INNOVATIONS, INC. (1)
D324527 Stud-mounted polycrystalline diamond cutting blank 14 1989
 
DRESSER INDUSTRIES, INC. (1)
* 4,602,691 Diamond drill bit with varied cutting elements 57 1984
 
EASTMAN CHRISTENSEN COMPANY (1)
* 4,913,244 Large compact cutter rotary drill bit utilizing directed hydraulics for each cutter 30 1988
 
GENERAL ELECTRIC COMPANY (1)
* 4,333,540 Cutter element and cutter for rock drilling 22 1980
 
REED TOOL COMPANY (1)
* 5,025,874 Cutting elements for rotary drill bits 73 1989
 
Unicorn Industries Public Limited Company (1)
* 4,511,006 Drill bit and method of use thereof 55 1983
 
WORKMAN NYDEGGER & JENSON PC AMERICAN PLAZA II COUNTRY OF SALT OF UTAH (1)
* 4,819,748 Roof drill bit 26 1987
 
Other [Check patent profile for assignment information] (4)
D265205 Drill bit 12 1980
* 4,440,247 Rotary earth drilling bit 45 1982
* 4,776,241 Cutting tool 3 1984
* 4,989,578 Method for forming diamond cutting elements for a diamond drill bit 9 1989
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
US SYNTHETIC CORPORATION (25)
7,635,035 Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements 44 2005
8,734,552 Methods of fabricating polycrystalline diamond and polycrystalline diamond compacts with a carbonate material 0 2008
8,162,082 Superabrasive compact including multiple superabrasive cutting portions, methods of making same, and applications therefor 1 2009
8,147,790 Methods of fabricating polycrystalline diamond by carbon pumping and polycrystalline diamond products 0 2009
8,663,349 Polycrystalline diamond compacts, and related methods and applications 0 2009
7,950,477 Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements 2 2009
8,216,677 Polycrystalline diamond compacts, methods of making same, and applications therefor 4 2009
8,439,137 Superabrasive compact including at least one braze layer thereon, in-process drill bit assembly including same, and method of manufacture 0 2010
8,784,517 Polycrystalline diamond compacts, methods of fabricating same, and applications therefor 0 2010
8,702,824 -carbon-containing additives to enhance cutting lip formation, and related methods and applications 0 2010
8,727,045 Polycrystalline diamond compacts, methods of making same, and applications therefor 0 2011
8,727,044 Polycrystalline diamond compact including a carbonate-catalyzed polycrystalline diamond body and applications therefor 0 2011
8,545,103 Tilting pad bearing assemblies and apparatuses, and motor assemblies using the same 0 2011
8,061,458 Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements 3 2011
8,863,864 Liquid-metal-embrittlement resistant superabrasive compact, and related drill bits and methods 0 2011
8,440,303 Polycrystalline diamond compacts and related drill bits 1 2011
8,342,269 Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements 2 2011
8,881,361 Methods of repairing a rotary drill bit 0 2012
8,651,743 Tilting superhard bearing elements in bearing assemblies, apparatuses, and motor assemblies using the same 0 2012
8,646,981 Bearing elements, bearing assemblies, and related methods 0 2012
8,760,668 Methods for determining wear volume of a tested polycrystalline diamond element 0 2012
8,622,157 Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements 0 2012
8,545,104 Tilting pad bearing apparatuses and motor assemblies using the same 0 2013
8,662,210 Rotary drill bit including polycrystalline diamond cutting elements 0 2013
8,840,309 Methods of operating a bearing apparatus including tilting pads 0 2013
 
KENNAMETAL INC. (8)
* 5,429,199 Cutting bit and cutting insert 69 1992
* 5,400,861 Rotatable cutting bit assembly 28 1994
* 6,109,377 Rotatable cutting bit assembly with cutting inserts 38 1997
* 6,044,920 Rotatable cutting bit assembly with cutting inserts 94 1998
6,260,638 Rotatable cutting bit assembly with wedge-lock retention assembly 22 1999
6,595,305 Drill bit, hard member, and bit body 29 2000
6,860,344 Monolithic roof cutting bit insert 5 2001
6,915,867 Earth penetrating rotary drill bit with helical ports 10 2003
 
WILLIAM J. BRADY LOVING TRUST, THE (6)
* 5,303,787 Rotary mining tools 30 1993
D430578 Rotary mining bit 36 1998
D424579 Rotary mining bit 25 1999
D514131 Rock drilling tool with ovate cutters 5 2004
D529937 Heavy duty roof drill bit 2 2005
7,392,866 Roof drilling system improvements 1 2006
 
DENNIS TOOL COMPANY (2)
* 5,456,329 Bifurcated drill bit construction 7 1994
* 5,709,279 Drill bit insert with sinusoidal interface 43 1995
 
KENNAMETAL PC INC. (2)
* 5,996,714 Rotatable cutting bit assembly with wedge-lock retention assembly 15 1997
6,176,332 Rotatable cutting bit assembly with cutting inserts 21 1998
 
SANDVIK INTELLECTUAL PROPERTY AB (2)
D682325 Drill bit 1 2012
D682326 Drill bit 2 2012
 
DOVER BMCS ACQUISITION CORP. (1)
8,584,777 Rotational drill bits and drilling apparatuses including the same 0 2010
 
SANDVIK ROCK TOOLS, INC. (1)
* 5,301,763 Apparatus for drilling holes in mine roofs and a roof drill bit for use therein 3 1993
 
Other [Check patent profile for assignment information] (3)
* 5,505,272 Drill bits 20 1994
7,228,922 Drill bit 5 2004
7,513,319 Reamer bit 2 2007
* Cited By Examiner