1
Harold P Bovenkerk, Paul D Gigl: Temperature resistant abrasive compact and method for making same. General Electric Company, Morgan Finnegan Pine Foley & Lee, September 23, 1980: US04224380 (365 worldwide citation)

In one embodiment, a compact for tools, such as cutting, drilling and shaping tools, consists essentially of self-bonded abrasive particles. The bonded particles define a substantially continuous interconnected network of pores, dispersed throughout the compact. The method for making such a compact ...


2
Harold P Bovenkerk: Rotary drill bit. General Electric Company, D A Dearing, D J Voss, F L Neuhauser, August 29, 1978: US04109737 (290 worldwide citation)

A rotary drill bit for rock drilling comprising a plurality of cutting elements mounted by interference-fit in recesses in the crown of the drill bit. Each cutting element comprises an elongated pin with a thin layer of polycrystalline diamond bonded to the free end of the pin.


3
Harold P Bovenkerk: Compact of boron-doped diamond and method for making same. General Electric Company, Douglas B Little, D A Dearing, May 19, 1981: US04268276 (275 worldwide citation)

In one embodiment, a compact for tools, such as cutting, drilling, wire drawing and shaping tools, consists essentially of a porous mass of self-bonded, boron-doped diamond particles and a catalyst-solvent material. The method for making such a compact comprises the steps of bonding a mass of boron- ...


4
Harold P Bovenkerk, Gordon M Kibler: Diamond and cubic boron nitride abrasive compacts using size selective abrasive particle layers. General Electric Company, Douglas B Little, Jerry K Mueller Jr, January 19, 1982: US04311490 (177 worldwide citation)

Disclosed is an improved process for preparing a composite compact wherein a mass of abrasive crystals, a mass of metal carbide, and a bonding medium are subjected to a high-temperature/high pressure process for providing a composite compact. The sintered carbide mass supports the mass of abrasive c ...


5
Harold P Bovenkerk, Paul D Gigl: Temperature resistant abrasive compact and method for making same. General Electric Company, Morgan Finnegan Pine Foley & Lee, September 8, 1981: US04288248 (135 worldwide citation)

In one embodiment, a compact for tools, such as cutting, drilling and shaping tools, consists essentially of self-bonded abrasive particles. The bonded particles define a substantially continuous interconnected network of pores, dispersed throughout the compact. The method for making such a compact ...


6
Martin E Deakins, David E Slutz, Neil R Johnson, Thomas J Clark, Harold P Bovenkerk: Sawblade segments utilizing polycrystalline diamond grit. General Electric Company, Gary L Loser, November 28, 1989: US04883500 (52 worldwide citation)

The present invention provides saw blade segments comprising polycrystalline diamond cutting elements and single crystal diamond cutting elements dispersed in a bonding matrix. In a preferred embodiment abrasion resistant particles are included so as to cause non-uniform wearing of the cutting segme ...


7
Thomas R Lavens, Francis R Corrigan, Richard L Shott, Harold P Bovenkerk: Re-sintered boron-rich polycrystalline cubic boron nitride and method for making same. General Electric Company, Robert R Schroeder, June 16, 1987: US04673414 (48 worldwide citation)

Disclosed is a method for making re-sintered polycrystalline CBN compact which comprises placing sintered boron-rich polycrystalline CBN particles in a high temperature/high pressure apparatus and subjecting said boron-rich CBN particles to a pressure and a temperature adequate to re-sinter said par ...


8
Neil R Johnson, Harold P Bovenkerk: Novel grinding wheels utilizing polycrystalline diamond or cubic boron nitride grit. General Electric Company, Gary L Loser, May 8, 1990: US04923490 (45 worldwide citation)

The invention provides grinding tools comprising thermally stable polycrystalline diamond or cubic boron nitride abrasive particles and single crystal diamond or cubic boron nitride abrasive particles attached to a support means via a bonding matrix such as a sintered or electrodeposited metal or al ...


9
Frank J Csillag, Harold P Bovenkerk: Directional catalyst alloy sweep through process for preparing diamond compacts. The General Electric Company, Mueller and Smith, October 18, 1988: US04778486 (43 worldwide citation)

Disclosed is an improved method for making a polycrystalline diamond compact comprising subjecting a mass of diamond particles, which mass is adjacent a cemented metal carbide mass containing a catalyst, to a high pressure/high temperature process which results in a compact characterized by diamond- ...


10
Frank J Csillag, Harold P Bovenkerk: Directional catalyst alloy sweep through process for preparing diamond compacts. General Electric Company, Gary L Loser, March 13, 1990: US04907377 (43 worldwide citation)

Disclosed is an improved method for making a polycrystalline diamond compact comprising subjecting a mass of diamond particles, which mass is adjacent a cemented metal carbide mass containing a catalyst, to a high pressure/high temperature process which results in a compact characterized by diamond- ...