US 12,228,177 B2
Driveline with double conical bearing joints having polycrystalline diamond power transmission surfaces
Gregory Prevost, Spring, TX (US)
Assigned to Pi Tech Innovations LLC, Houston, TX (US)
Filed by Pi Tech Innovations LLC, Houston, TX (US)
Filed on Aug. 11, 2021, as Appl. No. 17/399,640.
Application 17/399,640 is a continuation in part of application No. 17/331,399, filed on May 26, 2021, granted, now 11,274,731.
Application 17/331,399 is a continuation of application No. 16/888,079, filed on May 29, 2020, granted, now 11,054,000, issued on Jul. 6, 2021.
Claims priority of provisional application 63/064,272, filed on Aug. 11, 2020.
Prior Publication US 2022/0136585 A1, May 5, 2022
Int. Cl. F16D 3/16 (2006.01); E21B 17/02 (2006.01)
CPC F16D 3/16 (2013.01) [E21B 17/02 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A driveline with double conical joints, the driveline comprising:
a drive shaft having a first end and a second end;
a first bearing coupler at the first end of the drive shaft, the first bearing coupler having a metal bearing surface, the metal bearing surface including a metal that contains at least 2 wt. % diamond solvent-catalyst based on a total weight of the metal; and
a first double conical joint comprising a polycrystalline diamond element thereon, the polycrystalline diamond element having a polycrystalline diamond bearing surface;
wherein the first double conical joint is rotatably coupled with the first bearing coupler such that the polycrystalline diamond bearing surface of the first double conical joint is in sliding contact with the metal bearing surface of the first bearing coupler.