| Patent Number |
Title Of Patent |
Date Issued |
| 5199832 |
Multi-component cutting element using polycrystalline diamond disks |
April 6, 1993 |
| A diamond cutting table having the geometric characteristics of larger unleached diamond compact products and yet characterized by the physical properties of smaller leached diamond products is fabricated by forming a diamond cutter incorporating a plurality of polycrystalline diamond (P |
| 5028177 |
Multi-component cutting element using triangular, rectangular and higher order polyhedral-shaped |
July 2, 1991 |
| A diamond cutter for use in a drill bit having a geometric size and shape normally characterized by unleached diamond product, such as STRATAPAX diamond cutters, can be fabricated by assembling a plurality of prefabricated leached polycrystalline diamond (PCD) elements in an array in |
| 4726718 |
Multi-component cutting element using triangular, rectangular and higher order polyhedral-shaped |
February 23, 1988 |
| A diamond cutter for use in a drill bit having a geometric size and shape normally characterized by unleached diamond product, such as STRATAPAX diamond cutters, can be fabricated by assembling a plurality of prefabricated leached polycrystalline diamond (PCD) elements in an array in |
| 4552231 |
Rotating pilot core bit for use in highly fractured formations |
November 12, 1985 |
| Coring samples can be taken in highly fractured rock formations without physical disturbance of the coring sample as it is cut and without jamming the core within the core barrel by using a rotating coring bit characterized by a pilot portion. The pilot portion extends the inner gage |
| 4529047 |
Cutting tooth and a rotating bit having a fully exposed polycrystalline diamond element |
July 16, 1985 |
| The present invention is an improvement in the cutting tooth used in a rotating drilling bit wherein the cutting tooth incorporates a synthetic triangularly shaped prismatic diamond element. The polycrystalline diamond element is substantially exposed above the bit face of the bit and is |
