DR. JAMES MCHALE, M.D.
Medical Practice at Broad St, Columbus, OH

2004015, Aug 12, 2004

Dec 23, 2003

10/744688

Michael Zimmerman - Westerville OH, US
Dwight Dyer - Kingston OH, US
James McHale - Worthington OH, US
Scott Ries - Grove City OH, US
James Graham - Gahanna OH, US
York Falkenberg - Roedermark, DE
Dirk Heinemann - Bad Homburg, DE

General Electric Company

B23K031/00

228/248100

A superabrasive tool blank whose carbide side is affixed with a suitable braze alloy, for subsequent shaping into desired tool geometry and induction-brazed forming a cutting tool. The use of the pre-coated braze alloy in the tool blank forming cutting tools allows the direct brazing of the superabrasive blank onto a tool insert, thus minimizing operations and labor time involved for the shaping and handling of the braze substrate in the process of the prior art, i.e., the brazing of the assembly of the superabrasive tool blank, braze alloy, and tool insert. The pre-brazed blank can be conveniently used in automated brazing operations for forming cutting tools.

2003019, Oct 16, 2003

Jun 4, 2003

10/454033

Mark D'Evelyn - Niskayuna NY, US
Michael Loh - Marbach, DE
James McHale - Worthington OH, US
Kristi Narang - Voorheesville NY, US
Aaron Saak - Gahanna OH, US
Steven Webb - Worthington OH, US

C09C001/68, B24D003/02, C09K003/14

051/309000

An abrasive diamond composite formed from coated diamond particles and a matrix material. The diamonds have a protective coating formed from a refractory material having a composition MCN, that prevents corrosive chemical attack of the diamonds by the matrix material. The abrasive diamond composite may further include an infiltrant, such as a braze material. Alternatively, the abrasive diamond composite may include a plurality of coated diamond particles and a braze material filling interstitial spaces between the coated diamond particles. Methods of making such abrasive diamond composites are also disclosed.

2003000, Jan 9, 2003

Jul 9, 2001

09/901159

James McHale - Worthington OH, US

C09C001/68, C09K003/14, B24D003/00

051/298000, 051/307000, 051/309000, 051/308000, 051/293000, 428/403000, 428/404000, 423/335000

The retention of metal-coated superabrasive particles in a resin bond matrix is improved by incorporating a silane coupling agent into a mixture of metal-coated superabrasive particles and resin bond matrix. The silane can incorporated by providing a metal-coated superabrasive particle treated with a silane coupling agent for adding to the resin bond matrix. Alternatively, the silane can reacted into the resin bond matrix and then the metal-coated superabrasive particles added. Both diamond and cubic boron nitride are useful in the invention.

2002016, Nov 7, 2002

Feb 2, 2001

09/776141

James McHale - Worthington OH, US
James Dailey - Westerville OH, US
Markus Jakobuss - Columbus OH, US
Daniel Riehle - Powell OH, US
Juergen Dungen - Buerstadt, DE

B24B019/04

451/048000

Flute grinding cemented carbide workpieces with a diamond containing resin bond grinding wheel is improved by restricting the diamond to comprise a silver-coated diamond; conducting the grinding in the presence of a lubricant consisting of only straight oil; and conducting the grinding at a wheel speed of less than about 30 m/s and preferably about 20 m/s. The preferred diamond is coated with about 25% and 75% silver by weight.

2002009, Jul 25, 2002

Dec 4, 2000

09/729525

Mark D'Evelyn - Niskayuna NY, US
Kristi Narang - Voorheesville NY, US
James McHale - Worthington OH, US
Michael Loh - Stuttgart, DE
Aaron Saak - Gahanna OH, US
Steven Webb - Worthington OH, US

C09C001/68, C09K003/14

051/309000

An abrasive diamond composite formed from coated diamond particles and a matrix material. The diamonds have a protective coating formed from a refractory materia1 having a composition MCN, that prevents corrosive chemical attack of the diamonds by the matrix material. The abrasive diamond composite may further include an infiltrant, such as a braze material. Alternatively, the abrasive diamond composite may include a plurality of coated diamond particles and a braze material filling interstitial spaces between the coated diamond particles. Methods of making such abrasive diamond composites are also disclosed.

2004006, Apr 1, 2004

Jul 17, 2003

10/621710

Ram Raghavan - Westerville OH, US
James McHale - Worthington OH, US
Robert Scurlock - Johnstown OH, US

General Electric Company

B32B009/00

428/408000

A sintered supported polycrystalline diamond compact (PCD) having improved abrasion resistance properties is manufactured by subjecting diamond crystals placed in adjacency with a metal carbide support containing a catalyst/sintering aid to high pressure/high temperature (HP/HT) processing. Said PCD compact comprises: a) a body of diamond crystals comprising a mixture of about 60 wt % to about 80 wt. % of coarse fraction having an average particle size ranging from about 30 to 60 m and a fine fraction being about not substantially greater than about 20% of the average particle size of said coarse fraction; and b) a support body comprising about 12 wt. % or less of a catalyst/sintering.