US Patent No: 5,180,022

Number of patents in Portfolio can not be more than 2000

Rotary mining tools

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Importance

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Abstract

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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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DOVER BMCS ACQUISITION CORP.OREM, UT23
WILLIAM J. BRADY LOVING TRUST, THECREVE COEUR, MO24
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, MO2

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brady, William J Creve Coeur, MO 30 481

Cited Art

Patent Info (Count) # Cites Year
 
SMITH INTERNATIONAL, INC. (6)
4,303,136 Fluid passage formed by diamond insert studs for drag bits 36 1979
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 101 1980
4,604,106 Composite polycrystalline diamond compact 245 1985
4,694,918 Rock bit with diamond tip inserts 168 1986
4,751,972 Revolving cutters for rock bits 36 1987
4,858,707 Convex shaped diamond cutting elements 64 1988
 
REED TOOL COMPANY (2)
4,241,798 Drilling bits for plastic formations 4 1979
5,025,874 Cutting elements for rotary drill bits 70 1989
 
SII MEGADIAMOND, INC. (2)
4,525,178 Composite polycrystalline diamond 75 1984
4,570,726 Curved contact portion on engaging elements for rotary type drag bits 67 1985
 
AMOCO CORPORATION (1)
4,932,484 Whirl resistant bit 63 1989
 
BOYLES BROTHERS DRILLING CO. (1)
4,352,400 Drill bit 45 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 111 1985
 
DIAMOND INNOVATIONS, INC. (1)
D324527 Stud-mounted polycrystalline diamond cutting blank 13 1989
 
DRESSER INDUSTRIES, INC. (1)
4,602,691 Diamond drill bit with varied cutting elements 49 1984
 
EASTMAN CHRISTENSEN COMPANY (1)
4,913,244 Large compact cutter rotary drill bit utilizing directed hydraulics for each cutter 29 1988
 
GENERAL ELECTRIC COMPANY (1)
4,333,540 Cutter element and cutter for rock drilling 22 1980
 
UNICORN INDUSTRIES PUBLIC LIMITED COMPANY (1)
4,511,006 Drill bit and method of use thereof 46 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 11 1980
4,440,247 Rotary earth drilling bit 40 1982
4,776,241 Cutting tool 3 1984
4,989,578 Method for forming diamond cutting elements for a diamond drill bit 9 1989

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
KENNAMETAL INC. (8)
5,429,199 Cutting bit and cutting insert 60 1992
5,400,861 Rotatable cutting bit assembly 25 1994
6,109,377 Rotatable cutting bit assembly with cutting inserts 18 1997
6,044,920 Rotatable cutting bit assembly with cutting inserts 77 1998
6,260,638 Rotatable cutting bit assembly with wedge-lock retention assembly 21 1999
6,595,305 Drill bit, hard member, and bit body 24 2000
6,860,344 Monolithic roof cutting bit insert 4 2001
6,915,867 Earth penetrating rotary drill bit with helical ports 7 2003
 
US SYNTHETIC CORPORATION (7)
7,635,035 Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements 17 2005
8,162,082 Superabrasive compact including multiple superabrasive cutting portions, methods of making same, and applications therefor 0 2009
8,147,790 Methods of fabricating polycrystalline diamond by carbon pumping and polycrystalline diamond products 0 2009
7,950,477 Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements 1 2009
8,216,677 Polycrystalline diamond compacts, methods of making same, and applications therefor 2 2009
8,061,458 Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements 1 2011
8,342,269 Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements 0 2011
 
WILLIAM J. BRADY LOVING TRUST, THE (6)
5,303,787 Rotary mining tools 28 1993
D430578 Rotary mining bit 35 1998
D424579 Rotary mining bit 24 1999
D514131 Rock drilling tool with ovate cutters 4 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 6 1994
5,709,279 Drill bit insert with sinusoidal interface 35 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 19 1998
 
SANDVIK ROCK TOOLS, INC. (1)
5,301,763 Apparatus for drilling holes in mine roofs and a roof drill bit for use therein 2 1993
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (7)
5,505,272 Drill bits 17 1994
7,228,922 Drill bit 5 2004
7,513,319 Reamer bit 2 2007
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
8,440,303 Polycrystalline diamond compacts and related drill bits 0 2011
D682325 Drill bit 0 2012
D682326 Drill bit 0 2012