公开(公告)号：US11926972B2

公开(公告)日：2024-03-12

申请号：US17234400

申请日：2021-04-19

Applicant: US SYNTHETIC CORPORATION

Inventor： Regan Leland Burton ,  Andrew E. Dadson ,  Mohammad N. Sani

IPC: E01C23/088 ,  E01C23/12 ,  E21C35/183

CPC classification number: E01C23/088 ,  E01C23/127 ,  E21C35/183 ,  E21C35/1833 ,  E21C35/1835 ,  E21C35/1837

Abstract: This disclosure relates to a system for removing road material. In an embodiment, the system may include a milling drum and at least one pick mounted on the milling drum. Furthermore, the pick may include polycrystalline diamond at least partially forming one or more working surfaces of the pick.

公开(公告)号：US11821313B2

公开(公告)日：2023-11-21

申请号：US18098516

申请日：2023-01-18

Applicant: Kennametal Inc.

Inventor： Brandon J. Kenno ,  James R. Geyer

IPC: E21C35/197 ,  E21C35/183

CPC classification number: E21C35/197 ,  E21C35/1835

Abstract: A washerless cutting tool assembly includes a cutting tool holder and a rotatable cutting tool at least partially disposed within the cutting tool holder. The cutting tool holder includes an alignment feature in the form of a protrusion at an axial forward end and a groove at an axial rearward end of the head portion of the rotatable cutting tool. The groove is capable of receiving the protrusion of the cutting tool holder to align the central, longitudinal axis of rotatable cutting tool with the central, longitudinal axis of the cutting tool holder. The cutting tool assembly further includes a limited rotated feature in the form of a braking ring disposed within an annular groove and a retainer ring disposed over the braking ring.

公开(公告)号：US11939869B2

公开(公告)日：2024-03-26

申请号：US17471690

申请日：2021-09-10

Applicant: Carriere Industrial Supply Limited

Inventor： Oswald D. Zaayman

IPC: E21C35/19 ,  E21C35/18 ,  E21C35/183

CPC classification number: E21C35/19 ,  E21C35/18 ,  E21C35/1835 ,  E21C35/1837

Abstract: Provided is a mineral bit and cutting tip therefor. The mineral bit is configured to penetrate geological materials in a dig face to effectively process the same. The mineral bit includes various geometric constraints to increase structural integrity and penetration capability. The cutting tip may have increased durability and may be self-sharpening.

公开(公告)号：US20230406713A1

公开(公告)日：2023-12-21

申请号：US18034366

申请日：2021-11-30

Applicant: Weir Minerals Australia Ltd.

Inventor： Dongyang Li ,  Yunqing Tang ,  Ruiliang Liu ,  Dong Zhang ,  Xinhu Tang

IPC: C01B32/907 ,  C01B32/949 ,  C01B32/921 ,  G16C60/00

CPC classification number: C01B32/907 ,  C01B32/949 ,  C01B32/921 ,  G16C60/00 ,  C01P2002/50 ,  E21C35/1835 ,  C01P2002/72 ,  C01P2006/90 ,  C01P2002/85 ,  C01P2002/77 ,  C01P2004/03

Abstract: A complex carbide for mining and mineral processing applications that are subject to severe additional metal, with the additional metal being a transition metal.

公开(公告)号：US20230304400A1

公开(公告)日：2023-09-28

申请号：US17704952

申请日：2022-03-25

Applicant: Kennametal Inc.

Inventor： Thomas J. Long, II ,  James R. Geyer ,  Carlonda R. Reilly

IPC: E21C35/197 ,  E21C35/183

CPC classification number: E21C35/197 ,  E21C35/1831 ,  E21C35/1835

Abstract: The present invention provides a rotatable cutting tool with a bit, a washer, and a retainer. The retainer surrounds at least a portion of the shank of the bit. Wear on the shank is reduced by providing a retainer with a controlled hardness that is less than the hardness of the shank of the bit, while still allowing similar wear on the retainer.

公开(公告)号：US20230184110A1

公开(公告)日：2023-06-15

申请号：US17924394

申请日：2021-05-12

Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB

Inventor： Mirjam LILJA ,  Jose Luis GARCIA ,  Andreas BLOMQVIST ,  Ioannis ARVANITIDIS ,  Erik HOLMSTROM

IPC: E21C35/183 ,  C22C1/051 ,  C22C29/08 ,  C22C29/06

CPC classification number: E21C35/1835 ,  C22C1/051 ,  C22C29/08 ,  C22C29/067

Abstract: A method of redistributing the binder phase of a cemented carbide mining insert having a WC hard-phase component, optionally one or more further hard-phase components and a binder includes the steps of providing a green cemented carbide mining insert; applying at least one binder puller selected from a metal oxide or a metal carbonate to only at least one local area of the surface of the green cemented carbide insert; sintering the green carbide mining insert to form a sintered cemented carbide insert; and subjecting the sintered cemented carbide insert to dry tumbling process executed at an elevated temperature of or above 100° C., preferably at a temperature of or above 200° C., more preferably at a temperature of between 200° C. and 450° C.

公开(公告)号：US11952896B2

公开(公告)日：2024-04-09

申请号：US17250934

申请日：2019-09-27

Applicant: Schlumberger Technology Corporation

Inventor： Yahua Bao ,  J. Daniel Belnap ,  Francis E. Leany ,  Ronald B. Crockett ,  Dwain Norris ,  Anatoliy Garan

IPC: E21C35/183 ,  E01C23/088 ,  E01C23/12 ,  B28D1/18

CPC classification number: E21C35/1831 ,  E01C23/088 ,  E01C23/127 ,  E21C35/1833 ,  E21C35/1835 ,  B28D1/188 ,  E21C35/1837

Abstract: A tool for removing material includes a body, an ultrahard insert, and a matrix. The body has a forward portion, an opposing rear portion, and a longitudinal axis therebetween. The ultrahard insert includes an ultrahard material, and the ultrahard insert is mounted to and contacts the body proximate the forward portion. The matrix contacts the body and the ultrahard insert. The matrix is mechanically interlocked with the body and at least a portion of the matrix is positioned circumferentially around at least a portion of the forward portion of the body.

公开(公告)号：US11921130B2

公开(公告)日：2024-03-05

申请号：US17146288

申请日：2021-01-11

Applicant: University of Warwick

Inventor： Patrick Unwin ,  Kim Martin McKelvey

IPC: G01Q60/60 ,  B22D19/14 ,  C23C26/02 ,  E21C35/183

CPC classification number: G01Q60/60 ,  B22D19/14 ,  C23C26/02 ,  E21C35/183 ,  E21C35/1831 ,  E21C35/1833 ,  E21C35/1835 ,  Y10T428/12937 ,  Y10T428/12965

Abstract: A new scanning electrochemical microscopy tip positioning method that allows topography and surface activity to be resolved independently is presented. A SECM tip is oscillated relative to the surface of interest. Changes in the oscillation amplitude, caused by the intermittent contact of the SECM tip with the surface of interest, are used to detect the surface of interest, and as a feedback signal for various types of imaging.

公开(公告)号：US20230151734A1

公开(公告)日：2023-05-18

申请号：US18098516

申请日：2023-01-18

Applicant: Kennametal Inc.

Inventor： Brandon J. Kenno ,  James R. Geyer

IPC: E21C35/197 ,  E21C35/183

CPC classification number: E21C35/197 ,  E21C35/1835

Abstract: A washerless cutting tool assembly includes a cutting tool holder and a rotatable cutting tool at least partially disposed within the cutting tool holder. The cutting tool holder includes an alignment feature in the form of a protrusion at an axial forward end and a groove at an axial rearward end of the head portion of the rotatable cutting tool. The groove is capable of receiving the protrusion of the cutting tool holder to align the central, longitudinal axis of rotatable cutting tool with the central, longitudinal axis of the cutting tool holder. The cutting tool assembly further includes a limited rotated feature in the form of a braking ring disposed within an annular groove and a retainer ring disposed over the braking ring.

公开(公告)号：US20230151733A1

公开(公告)日：2023-05-18

申请号：US17995535

申请日：2021-04-06

Applicant: Element Six (UK) Limited

Inventor： Shuo Lu

IPC: E21C35/183 ,  E21C25/18

CPC classification number: E21C35/1835 ,  E21C25/18 ,  E21C35/1831 ,  E02F5/08

Abstract: This disclosure relates to a disk cutter (100) for a cutting assembly of a rock excavation machine. The disk cutter comprising a cutter body (102) including at least one light-weighting aperture (110).