US Synthetic Corporation

Apergy Bmcs Acquisition Corporation

Edwin Sean Cox

Regan Leland Burton

Debkumar Mukhopadhyay

Damon Bart Crockett

Ronald W Ward

Robert J Farr

Daniel Preston Wilding

Embodiments described herein relate to material-removal systems as well as cutting tools and cutting tool assemblies that may be used in the material-removal systems. More specifically, for example, the material-removal systems, and particularly the cutting tools, may engage and fail target material. In some instances, the material-removal systems may be used in mining operations.

Material-removal systems, cutting tools therefor, and related methods

Embodiments of the invention generally relate to tunnel boring machine cutter assemblies, such as ripping and scraping cutter or tool assemblies, (collectively 'cutter assemblies'), and related methods of use and manufacturing. The various embodiments of the cutter assemblies described herein may be used in tunnel boring machines ('TBMs'), earth pressure balance machines (&#x201c;EPBs&#x201d;), raise drilling systems, large diameter blind drilling systems, and other types of mechanical drilling and excavation systems.

Ripping and scraping cutter tool assemblies, systems, and methods for a tunnel boring machine

Embodiments disclosed herein involve polycrystalline diamond ('PCD') tables and polycrystalline diamond compacts ('PDCs') that include PCD tables as well as methods and apparatuses for manufacturing thereof. Some embodiments include a canister assembly that may be used in a high-pressure/high-temperature (&#x201c;HPHT&#x201d;) process or other heating process to manufacture the PCD tables and/or the PDCs.

Methods of fabricating polycrystalline diamond compacts and related canister assemblies

In an embodiment, a disc cutter for use on a tunnel boring machine may include a shaft and a cutter assembly rotatably mounted on the shaft. The cutter assembly may include a cutter ring extending circumferentially about a central axis and one or more bearing apparatuses rotatably mounting the cutter assembly to the shaft. Each bearing apparatuses may include a rotor extending circumferentially about the central axis and a first plurality of superhard bearing elements distributed circumferentially about the central axis. Each first superhard bearing element may be attached to the rotor and may include a bearing surface. The bearing apparatuses may further include a stator extending circumferentially about the central axis and a second plurality of superhard bearing elements attached to the stator that are generally opposed to the first plurality of superhard bearing elements of the rotor.

Tunnel boring machine disc cutters and related methods of manufacture

In an embodiment, a cutter assembly for use on a tunnel boring machine may include a cutter ring extending circumferentially about a central axis. The cutter ring may include a radially inner surface and a radially outer surface. The cutter assembly may also include superabrasive cutting elements distributed circumferentially about the axis. Each of the superabrasive cutting elements may be attached to the cutter ring and may include a polycrystalline diamond ('PCD') body having a working surface. At least a number of the cutting elements may extend beyond the outer surface of the cutter ring.

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Spanish Fork, UT, United States of America

Edwin Sean Cox