公开(公告)号：US1468914A

公开(公告)日：1923-09-25

申请号：US36880220

申请日：1920-03-25

申请人： EUGENE MORGAN OLIVE

发明人： EUGENE MORGAN OLIVE

IPC分类号： E21C35/193

CPC分类号： E21C35/1933 ,  E21C35/1936

公开(公告)号：US11970944B2

公开(公告)日：2024-04-30

申请号：US17152899

申请日：2021-01-20

申请人： CARRIERE INDUSTRIAL SUPPLY LIMITED

发明人： Oswald D. Zaayman

IPC分类号： E21C35/193 ,  E21C35/19 ,  E02F9/28 ,  E21C35/18

CPC分类号： E21C35/1936 ,  E21C35/19 ,  E02F9/2816 ,  E02F9/2841 ,  E02F9/2858 ,  E02F9/2866 ,  E21C35/188

摘要： Mineral bits (10, 100) and associated mounts (30, 116, 200) for use during excavation and mining operations are disclosed. An exemplary bit (10) has a front region (12) and an opposite rear region (14) and comprises a head portion (16) and a mounting portion (18) secured to the head portion (16). The mounting portion (18) can be configured to be releasably retained by a mount (30). A rounded transition (22) disposed in the front region (12) of the bit between the head portion (16) and the mounting portion (18) provides a clearance (C) between the head portion (16) and the mount (16). Mineral bits (10, 100) disclosed can be inserted into and withdrawn from mounts (30, 116, 200) by linear and/or rotational movement.

公开(公告)号：US11313087B2

公开(公告)日：2022-04-26

申请号：US16933550

申请日：2020-07-20

申请人： Wirtgen GmbH

发明人： Christian Berning ,  Karsten Buhr ,  Markus Frankemölle ,  Thomas Lehnert ,  Andreas Salz ,  Hardy Wilhelmi

IPC分类号： E01C23/088 ,  E01C23/12 ,  E21C47/00 ,  E21C35/193 ,  F16B19/02 ,  F16B37/14 ,  F16B39/02

摘要： A replaceable milling drum for an earth working machine includes a milling drum tube and a protrusion structure fixed to the milling drum tube. A bearing stem protrudes from the protrusion structure axially away from a drive axial end of the milling drum tube. The bearing stem has an outer surface including at least first and second cylindrical bearing surfaces axially spaced from each other, a furthest one of the cylindrical bearing surfaces from the drive axial end having a smaller diameter than a next furthest one of the cylindrical bearing surfaces from the drive axial end, the bearing stem having a central opening therethrough co-axial with the drive axis.

公开(公告)号：US11078635B2

公开(公告)日：2021-08-03

申请号：US16526387

申请日：2019-07-30

申请人： US Synthetic Corporation

发明人： David P. Miess ,  Michael James Gleason ,  Samuel Earl Wilding ,  Regan Leland Burton ,  Paul Douglas Jones

IPC分类号： E01C23/088 ,  E01C23/12 ,  E21C35/183 ,  B28D1/18 ,  E21C35/193

摘要： Embodiments of the invention are directed to cutting tool assemblies, material-removing machines that include cutting tool assemblies, and methods of use and operation thereof. In some embodiments, the cutting tool assemblies described herein may be used in material-removing machines that may remove target material. For example, the cutting tool assemblies may include one or more superhard working surfaces and/or one or more shields.

公开(公告)号：US10900356B2

公开(公告)日：2021-01-26

申请号：US16370086

申请日：2019-03-29

申请人： CARRIERE INDUSTRIAL SUPPLY LIMITED

发明人： Oswald D. Zaayman

IPC分类号： E21C35/193 ,  E21C35/19 ,  E02F9/28 ,  E21C35/18

摘要： Mineral bits (10, 100) and associated mounts (30, 116, 200) for use during excavation and mining operations are disclosed. An exemplary bit (10) has a front region (12) and an opposite rear region (14) and comprises a head portion (16) and a mounting portion (18) secured to the head portion (16). The mounting portion (18) can be configured to be releasably retained by a mount (30). A rounded transition (22) disposed in the front region (12) of the bit between the head portion (16) and the mounting portion (18) provides a clearance (C) between the head portion (16) and the mount (16). Mineral bits (10, 100) disclosed can be inserted into and withdrawn from mounts (30, 1 16, 200) by linear and/or rotational movement.

公开(公告)号：US20200063555A1

公开(公告)日：2020-02-27

申请号：US16670733

申请日：2019-10-31

申请人： Winchester E. Latham

发明人： Winchester E. Latham

IPC分类号： E21C35/183 ,  E21C35/193 ,  E21C25/10 ,  B28D1/18

摘要： A cutter bit adapted to be fixed onto a working surface of a rotating drum of a milling, planing, mining or reclaiming machine is provided. The body of the cutter bit is generally formed of a hardened steel, the cutting surface may be a diamond composition fixed in a step in the upper end of the cutter bit. The cutter bit includes a cutting surface, and the cutting surface may include non-parallel side edges and an upper cutting edge parallel to a lower edge. The lower edge may be any length sufficient to inhibit unintended angular displacement of the cutting surface during operation of the working surface. Alternatively or in addition, the cutting surface may be defined by three edges to allow the cutting surface to be removed and repositioned in at least a second orientation.

公开(公告)号：US10465513B2

公开(公告)日：2019-11-05

申请号：US15894715

申请日：2018-02-12

申请人： Winchester E. Latham

发明人： Winchester E. Latham

IPC分类号： E21C35/183 ,  E21C35/193 ,  E21C25/10 ,  B28D1/18

摘要： A cutter bit adapted to be fixed onto a working surface of a rotating drum of a milling, planing, mining or reclaiming machine is provided. The body of the cutter bit is generally formed of a hardened steel, the cutting surface may be a diamond composition fixed in a step in the upper end of the cutter bit. The cutter bit includes a cutting surface, and the cutting surface may include non-parallel side edges and an upper cutting edge parallel to a lower edge. The lower edge may be any length sufficient to inhibit unintended angular displacement of the cutting surface during operation of the working surface. Alternatively or in addition, the cutting surface may be defined by three edges to allow the cutting surface to be removed and repositioned in at least a second orientation.

公开(公告)号：US10233752B2

公开(公告)日：2019-03-19

申请号：US15582751

申请日：2017-04-30

申请人： EVERPADS CO., LTD.

发明人： Chun-Li Chiang

IPC分类号： E21C35/18 ,  E21C35/193 ,  E01C23/088 ,  E01C23/12 ,  E21C35/19

摘要： A cutting tool holding mechanism includes a base, a handle and a locking assembly. The base includes an abutting portion, a receiving bore, at least one limiting bore and at least one limiting hole. The limiting hole is disposed at the base and communicated with the limiting bore. The handle abutted against the base includes a sleeved portion and a plurality of positioning surfaces. The locking assembly includes a packing ring, a locking screw, a locking member and a guiding bolt. The locking member received inside the limiting bore includes a screwed hole and a guiding groove. The guiding groove disposed at one side of the locking member and is aligned with the limiting hole when the locking member is disposed inside the limiting bore. The guiding bolt is disposed in the limiting hole and is abutted against the guiding groove to inhibit the locking member from rotating.

公开(公告)号：US20170342832A1

公开(公告)日：2017-11-30

申请号：US15582751

申请日：2017-04-30

申请人： EVERPADS CO., LTD.

发明人： Chun-Li CHIANG

IPC分类号： E21C35/193 ,  E01C23/12 ,  E01C23/088

CPC分类号： E21C35/1933 ,  E01C23/088 ,  E01C23/127 ,  E21C2035/191

摘要： A cutting tool holding mechanism includes a base, a handle and a locking assembly. The base includes an abutting portion, a receiving groove, at least one limiting groove and at least one limiting hole. The limiting hole is disposed at the base and communicated with the limiting groove. The handle abutted against the base includes a sleeved portion and a plurality of positioning surfaces. The locking assembly includes a packing ring, a locking screw, a locking member and a guiding bolt. The locking member received inside the limiting groove includes a screwed hole and a guiding groove. The guiding groove disposed at one side of the locking member and is aligned with the limiting hole when the locking member is disposed inside the limiting groove. The guiding bolt is disposed in the limiting hole and is abutted against the guiding groove to inhibit the locking member from rotating.

公开(公告)号：US09719348B2

公开(公告)日：2017-08-01

申请号：US14863522

申请日：2015-09-24

申请人： Wirtgen GmbH

发明人： Thomas Lehnert ,  Karsten Buhr ,  Cyrus Barimani ,  Günter Hähn ,  Karl Kammerer ,  Markus Roth ,  Bernhard Diessner

IPC分类号： E21C35/19 ,  E21C35/193 ,  E21C35/18

CPC分类号： E21C35/19 ,  E21C35/18 ,  E21C35/193 ,  E21C35/1933 ,  E21C2035/191

摘要： The invention relates to a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the support member comprising two first and/or two second stripping surfaces that are at an angle to one another, and the support member having a working side that comprises a bit receptacle. In order to achieve a stable and long-lived configuration for such a bit holder, provision is made according to the present invention that the first and/or second stripping surfaces diverge from the insertion projection side toward the working side.