US20120274123A1 - Mineral Winning Pick, Pick Box and Combination - Google Patents
Mineral Winning Pick, Pick Box and Combination Download PDFInfo
- Publication number
- US20120274123A1 US20120274123A1 US13/398,105 US201213398105A US2012274123A1 US 20120274123 A1 US20120274123 A1 US 20120274123A1 US 201213398105 A US201213398105 A US 201213398105A US 2012274123 A1 US2012274123 A1 US 2012274123A1
- Authority
- US
- United States
- Prior art keywords
- pick
- shank
- hole
- resilient member
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/10—Spanners; Wrenches with adjustable jaws
- B25B13/12—Spanners; Wrenches with adjustable jaws the jaws being slidable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G1/00—Handle constructions
- B25G1/005—Handle constructions for screwdrivers, wrenches or spanners with additional levers, e.g. for increasing torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G1/00—Handle constructions
- B25G1/06—Handle constructions reversible or adjustable for position
- B25G1/063—Handle constructions reversible or adjustable for position for screwdrivers, wrenches or spanners
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/19—Means for fixing picks or holders
- E21C35/193—Means for fixing picks or holders using bolts as main fixing elements
- E21C35/1936—Means for fixing picks or holders using bolts as main fixing elements the picks having a square- or rectangular-section shank
Definitions
- This invention relates to a pick, to a pick box in which is located a shank of a replaceable pick for use in mineral winning operations, and to a combination of pick and box.
- a bayonet lock pick which has been an industry-standard for the last 40 years or so, particularly for the mining of coal. It will be observed that a bayonet lock pick has a shank provided with an acute angled through hole across its side cheeks, in which hole is secured a resilient bush, in which bush is permanently located a metal pin with projecting ends adapted in use, to engage ‘L’-shaped recesses machined into side cheek of a pick box, to releasably latch the pick to the box.
- the rubber insert of GB 2420360 requires the drilling of first and second intersecting holes through the pick shank, as can be seen from FIG. 1 of GB 2420360.
- the support provided to the pin by the rubber insert was asymmetrical in that the available wall thickness of the rubber varied depending on the angular zone under consideration.
- a basic object of the present invention is the provision of an improved pick, pick box and combination, particularly for non-coal mining operations.
- a mineral cutter pick comprising a shank of generally oblong section so as to have leading and trailing faces that are shorter than the resulting longer side faces, and hence to have a longitudinal axis and a transverse axis, an enlarged head formed integrally with the shank and provided at a cutting tip with a carbide insert, with a transition portion between the shank and head incorporating a rear heel and a forward toe, both having under surfaces adapted, in use, to seat on portions of an upper surface of a pick box, wherein the shank has a single, circular section through hole extending orthogonally across its side faces, in which through hole is fitted a resilient member of circular section with an external diameter to match that of the through hole of the shank, the resilient member itself having a coaxial through hole so as to provide an annulus of constant thickness when uncompressed and adapted, in use, after the pick shank has been inserted into a shank-receiving aperture of a pick box, to
- a pick box to receive the shank of a pick in accordance with the first aspect, comprising
- a pick in accordance with the first aspect the shank of which pick is inserted into an aperture of a pick box in accordance with the second aspect, and is releasably retained by a metal pin which is capable of being knocked into the intersecting through hole of the pick box and co-axial through hole of the resilient member from either side of the pick box.
- knock-out pin proposal of GB 2420360 and also as the conditions prevailing in e.g. a potash mine, are less troublesome than a coal mine, operatives are presented with minimal problems in inserting the pins e.g. simply by knocking them in with a hammer, and removing the pins when pick changing is required.
- the pin is non-headed, so that, in addition from being insertable from either side of the shank, the pin is also extractable from either side of the shank e.g. by being knocked out or pulled out with pliers.
- the resilient member is of synthetic rubber.
- the pin is of steel.
- FIG. 1 is a side elevation of a pick in accordance with the first aspect of the invention
- FIG. 2 is a plan view of FIG. 1 but with a pin inserted;
- FIG. 3 is a front elevation of FIG. 1 ;
- FIG. 4 is a side elevation of a pick box in accordance with the second aspect of the invention.
- FIG. 5 is a plan view of FIG. 4 ;
- FIG. 6 is a side elevation of a combined pick and box in accordance with the third aspect of the invention.
- FIG. 7 is a section on the line VII-VII of FIG. 6 .
- a mineral cutter pick 1 comprises a shank 2 of generally oblong section so as to have shorter leading and trailing faces 3 , 4 , and longer side faces 5 and hence to have a longitudinal axis 6 and a transverse axis 7 .
- An enlarged head 8 is formed integrally with the shank 2 and is provided at a recess 9 to house a carbide insert 10 .
- a transition portion 11 between the shank 2 and head 8 incorporates a rear heel 12 and a forward toe 13 , both having under surfaces 14 adapted, in use, to engage seating surfaces provided, in the conventional manner, by a pick box 15 .
- the shank 2 has a single, circular section through hole 16 extending orthogonally across its side faces 5 with respect to the longitudinal axis 6 .
- the hole 16 is fitted with a resilient member 17 of synthetic rubber, intended to be pushed into place by hand, and itself having a through hole 18 , the resilient member 17 being circular section with an external diameter match to match that of the through hole 16 of the shank 2 , so that the resilient member 17 provides an annulus of constant thickness when uncompressed.
- a frusto-conical lead-in portion 19 is provided at each end of the through hole 18 , whilst the resilient member 17 is also provided with diametrically opposed ribs 20 which become compressed when the resilient member 17 is pushed into the hole 16 , to prevent loss of the resilient member 17 during transportation.
- the resilient member 17 is adapted, in use, after the pick shank 2 has been inserted into a shank-receiving aperture 22 of the pick box 15 , to itself receive, and frictionally retain, a manually insertable, and manually removable, non-headed steel pin 23 having at one end a conical nose 24 , and at the other end a circumferential groove 25 , engageable by a simple extraction tool such as a screwdriver blade, with the pin 23 being of such overall length that it projects at portions 26 , and 27 beyond both side faces 5 of the shank 2 .
- the pick box 15 comprises a body 28 having a longitudinal axis 29 , and a transverse axis 30 .
- the body 28 is adapted, in use, to be secured by welding to a shearer drum or other rotary mineral winning/cutting head (not shown).
- the aperture 22 has of course a profile matching that of the shank 2 of a pick 1 .
- An orthogonal through hole 31 is drilled across the pick box 15 /body 28 such that the hole 31 intersects the through hole 18 of the resilient member 17 of the shank 2 of the inserted pick 1 , the hole 31 being slightly oversized with respect to the diameter of the pin 23 . As can be seen from FIG.
- the pins 23 are inserted simply by knocking them in with a hammer from either side of the shank 2 , or the pick box 15 , whichever is more accessible for the operative, and extracted by knocking them out with a hammer and/or pulling them out with pliers, when pick changing is required. Furthermore, if, as is preferred, the pin 23 is not headed, it can also be knocked in, or out, from either side of the shank 2 or the pick box 15 , whichever is more accessible to the operative.
Abstract
A mineral cutter pick (1) has an oblong section to define leading (3), trailing (4) and side (5) faces of a shank (2), and has longitudinal and transverse axes (6, 7). The shank (2) is provided with a single, circular section through hole (16) extending orthogonally across its side faces (5), in which hole (16) is fitted a resilient member (17) of circular section with an external diameter to match that of the hole (16), the resilient member (17) itself having a coaxial through hole (18) so as to provide an annulus of constant thickness when uncompressed and adapted, in use, after the pick shank (2) has been inserted into a shank-receiving aperture (22) of a pick box (5), to itself receive, and frictionally retain, a manually insertable, and manually removable, metal pin (23) adapted to project beyond the side faces (5).
Description
- This invention relates to a pick, to a pick box in which is located a shank of a replaceable pick for use in mineral winning operations, and to a combination of pick and box.
- In GB 1062752 for instance is illustrated a so-called bayonet lock pick, which has been an industry-standard for the last 40 years or so, particularly for the mining of coal. It will be observed that a bayonet lock pick has a shank provided with an acute angled through hole across its side cheeks, in which hole is secured a resilient bush, in which bush is permanently located a metal pin with projecting ends adapted in use, to engage ‘L’-shaped recesses machined into side cheek of a pick box, to releasably latch the pick to the box.
- However, the need to machine the ‘L’-slots into both side cheeks of the pick box, the attendant machining costs, and the consequent metal removal from the pick box, result in an inevitable weakening of the pick box, which was, and is, of consequence if the pick is subjected in service to some lateral loading, with the result that cheeks were frequently broken from pick boxes. As the pick boxes are welded around the periphery of a rotary cutting head of a shearer type or continuous type mining machine, with typically 50-70 picks on a shearer head, breakage of a certain number of boxes can be tolerated before broken boxes must be removed, and replaced by fresh boxes, and if this is not as part of scheduled maintenance, then unscheduled loss of production results.
- However, replacement of bayonet lock picks by a simple tool was, and is, an advantage of the bayonet lock tooling system in difficult coal mining conditions, whereas in the winning of other minerals such as potash, the desirability for a simple, screwless means of pick replacement is not as marked.
- In GB 2420360 is described a solution to this problem in providing a pick, pick box and combination for non-coal winning operations in which a non-headed pin could be knocked into, or from, a rubber insert carried by the pick, from either side.
- The rubber insert of GB 2420360 requires the drilling of first and second intersecting holes through the pick shank, as can be seen from FIG. 1 of GB 2420360. In addition, it can be seen from FIG. 2 of GB 2420360, the support provided to the pin by the rubber insert was asymmetrical in that the available wall thickness of the rubber varied depending on the angular zone under consideration.
- A basic object of the present invention is the provision of an improved pick, pick box and combination, particularly for non-coal mining operations.
- According to a first aspect of the invention, there is provided a mineral cutter pick comprising a shank of generally oblong section so as to have leading and trailing faces that are shorter than the resulting longer side faces, and hence to have a longitudinal axis and a transverse axis, an enlarged head formed integrally with the shank and provided at a cutting tip with a carbide insert, with a transition portion between the shank and head incorporating a rear heel and a forward toe, both having under surfaces adapted, in use, to seat on portions of an upper surface of a pick box, wherein the shank has a single, circular section through hole extending orthogonally across its side faces, in which through hole is fitted a resilient member of circular section with an external diameter to match that of the through hole of the shank, the resilient member itself having a coaxial through hole so as to provide an annulus of constant thickness when uncompressed and adapted, in use, after the pick shank has been inserted into a shank-receiving aperture of a pick box, to itself receive, and frictionally retain, a manually insertable, and manually removable, metal pin having ends adapted to project beyond the side faces of the shank, such that the pin is capable of being knocked in from either side of the shank.
- According to the present invention, there is provided a pick box, to receive the shank of a pick in accordance with the first aspect, comprising
-
- (i) a body adapted, in use, to be secured by welding to a shearer drum or other rotary mineral winning/cutting head;
- (ii) a generally rectangular aperture provided in the body and adapted, in use, to receive a generally rectangular shank of a pick in accordance with the first aspect; and
- (iii) a through hole extending orthogonally across the body and adapted to intersect the through hole of the resilient member of the inserted shank of the pick of the first aspect.
- According to a third aspect of the invention there is provided, in combination, a pick in accordance with the first aspect, the shank of which pick is inserted into an aperture of a pick box in accordance with the second aspect, and is releasably retained by a metal pin which is capable of being knocked into the intersecting through hole of the pick box and co-axial through hole of the resilient member from either side of the pick box.
- With regard to the pick shank, the need to drill two intersecting through holes is eliminated, thereby reducing production costs, whilst the provision of a circular resilient member with a coaxial bore ensures the same wall thickness over 360° is available to support the pin and to accommodate pick wear or fretting.
- As with the knock-in, knock-out pin proposal of GB 2420360, and also as the conditions prevailing in e.g. a potash mine, are less troublesome than a coal mine, operatives are presented with minimal problems in inserting the pins e.g. simply by knocking them in with a hammer, and removing the pins when pick changing is required.
- The pin is non-headed, so that, in addition from being insertable from either side of the shank, the pin is also extractable from either side of the shank e.g. by being knocked out or pulled out with pliers.
- The resilient member is of synthetic rubber.
- The pin is of steel.
- One example of pick, pick box, and combination of pick box and pin are shown in the accompanying drawings, in which:
-
FIG. 1 is a side elevation of a pick in accordance with the first aspect of the invention; -
FIG. 2 is a plan view ofFIG. 1 but with a pin inserted; -
FIG. 3 is a front elevation ofFIG. 1 ; -
FIG. 4 is a side elevation of a pick box in accordance with the second aspect of the invention; -
FIG. 5 is a plan view ofFIG. 4 ; -
FIG. 6 is a side elevation of a combined pick and box in accordance with the third aspect of the invention; and -
FIG. 7 is a section on the line VII-VII ofFIG. 6 . - In the drawings, a mineral cutter pick 1 comprises a
shank 2 of generally oblong section so as to have shorter leading and trailingfaces longitudinal axis 6 and atransverse axis 7. An enlargedhead 8 is formed integrally with theshank 2 and is provided at arecess 9 to house acarbide insert 10. Atransition portion 11 between theshank 2 andhead 8 incorporates arear heel 12 and aforward toe 13, both having undersurfaces 14 adapted, in use, to engage seating surfaces provided, in the conventional manner, by apick box 15. Theshank 2 has a single, circular section throughhole 16 extending orthogonally across its side faces 5 with respect to thelongitudinal axis 6. Thehole 16 is fitted with aresilient member 17 of synthetic rubber, intended to be pushed into place by hand, and itself having a throughhole 18, theresilient member 17 being circular section with an external diameter match to match that of the throughhole 16 of theshank 2, so that theresilient member 17 provides an annulus of constant thickness when uncompressed. A frusto-conical lead-inportion 19 is provided at each end of thethrough hole 18, whilst theresilient member 17 is also provided with diametrically opposedribs 20 which become compressed when theresilient member 17 is pushed into thehole 16, to prevent loss of theresilient member 17 during transportation. Theresilient member 17 is adapted, in use, after thepick shank 2 has been inserted into a shank-receivingaperture 22 of thepick box 15, to itself receive, and frictionally retain, a manually insertable, and manually removable,non-headed steel pin 23 having at one end aconical nose 24, and at the other end acircumferential groove 25, engageable by a simple extraction tool such as a screwdriver blade, with thepin 23 being of such overall length that it projects atportions shank 2. - The
pick box 15, comprises abody 28 having alongitudinal axis 29, and atransverse axis 30. Thebody 28 is adapted, in use, to be secured by welding to a shearer drum or other rotary mineral winning/cutting head (not shown). Theaperture 22 has of course a profile matching that of theshank 2 of a pick 1. An orthogonal throughhole 31 is drilled across thepick box 15/body 28 such that thehole 31 intersects the throughhole 18 of theresilient member 17 of theshank 2 of the inserted pick 1, thehole 31 being slightly oversized with respect to the diameter of thepin 23. As can be seen fromFIG. 7 , when thepin 23 is pushed or knocked into place,lower portion 32 ofresilient member 17 becomes compressed, urging upper surfaces of the projectingportions pin 23 into engagement with upper surfaces of thehole 31 at each side of the shank-receivingaperture 22. - In use, the
pins 23 are inserted simply by knocking them in with a hammer from either side of theshank 2, or thepick box 15, whichever is more accessible for the operative, and extracted by knocking them out with a hammer and/or pulling them out with pliers, when pick changing is required. Furthermore, if, as is preferred, thepin 23 is not headed, it can also be knocked in, or out, from either side of theshank 2 or thepick box 15, whichever is more accessible to the operative.
Claims (6)
1. A mineral cutter pick comprising a shank of generally oblong section so as to have leading and trailing faces that are shorter than the resulting longer side faces, and hence to have a longitudinal axis and a transverse axis, an enlarged head formed integrally with the shank and provided at a cutting tip with a carbide insert, with a transition portion between the shank and head incorporating a rear heel and a forward toe, both having under surfaces adapted, in use, to seat on portions of an upper surface of a pick box, wherein the shank has a single, circular section through hole extending orthogonally across its side faces, in which through hole is fitted a resilient member of circular section with an external diameter to match that of the through hole of the shank, the resilient member itself having a coaxial through hole so as to provide an annulus of constant thickness when uncompressed and adapted, in use, after the pick shank has been inserted into a shank-receiving aperture of a pick box, to itself receive, and frictionally retain, a manually insertable, and manually removable, metal pin having ends adapted to project beyond the side faces of the shank, such that the pin is capable of being knocked in from either side of the shank.
2. A pick as claimed in claim 1 , wherein the pin is non-headed.
3. A pick as claimed in claim 1 , wherein the resilient member is of synthetic rubber.
4. A pick as claimed in claim 1 , wherein the pin is of steel.
5. A pick box, to receive the shank of a pick in accordance with claim 1 , comprising
(i) a body adapted, in use, to be secured by welding to a shearer drum or other rotary mineral winning/cutting head;
(ii) a generally rectangular aperture provided in the body and adapted, in use, to receive a generally rectangular shank of a pick; and
(iii) a through hole extending orthogonally across the body and adapted to intersect the through hole of the resilient member of the inserted shank of the pick.
6. In combination, a pick as defined in claim 1 , the shank of which pick is inserted into an aperture of a pick box having (i) a body adapted, in use, to be secured by welding to a shearer drum or other rotary mineral winning/cutting head, (ii) a generally rectangular aperture provided in the body and adapted, in use, to receive a generally rectangular shank of a pick, and (iii) a through hole extending orthogonally across the body and adapted to intersect the through hole of the resilient member of the inserted shank of the pick, and wherein the pick is releasably retained by a metal pin which is capable of being knocked into the intersecting through hole of the pick box and co-axial through hole of the resilient member, from either side of the pick box.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB1102725.7A GB201102725D0 (en) | 2011-02-17 | 2011-02-17 | Mineral winning pick, pick box, and combination |
GB1102725.7 | 2011-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120274123A1 true US20120274123A1 (en) | 2012-11-01 |
Family
ID=43859524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/398,105 Abandoned US20120274123A1 (en) | 2011-02-17 | 2012-02-16 | Mineral Winning Pick, Pick Box and Combination |
Country Status (9)
Country | Link |
---|---|
US (1) | US20120274123A1 (en) |
EP (1) | EP2489830A2 (en) |
CN (1) | CN102644462A (en) |
AU (1) | AU2012200912A1 (en) |
CA (1) | CA2768875A1 (en) |
EA (1) | EA201200136A1 (en) |
GB (1) | GB201102725D0 (en) |
IN (1) | IN2012DE00433A (en) |
ZA (1) | ZA201201207B (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190381694A1 (en) * | 2014-04-30 | 2019-12-19 | Us Synthetic Corporation | Cutting tool assemblies including superhard working surfaces, material-removing machines including cutting tool assemblies, and methods of use |
US10648330B1 (en) | 2015-09-25 | 2020-05-12 | Us Synthetic Corporation | Cutting tool assemblies including superhard working surfaces, cutting tool mounting assemblies, material-removing machines including the same, and methods of use |
US10724369B2 (en) | 2013-06-18 | 2020-07-28 | Esco Group Llc | Mineral winning pick, pick holder, and combination |
US11015303B2 (en) | 2013-05-16 | 2021-05-25 | Us Synthetic Corporation | Shear cutter pick milling system |
US11021953B1 (en) | 2014-07-29 | 2021-06-01 | Apergy Bmcs Acquisition Corporation | Material-removal systems, cutting tools therefor, and related methods |
US11156087B2 (en) | 2013-05-16 | 2021-10-26 | Apergy Bmcs Acquisition Corporation | Pick including polycrystalline diamond compact |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103334752A (en) * | 2013-06-28 | 2013-10-02 | 黑龙江科技学院 | Duplex pickaxe type cutting tooth holder of drum shearer |
US11732445B2 (en) | 2018-04-13 | 2023-08-22 | Caterpillar Inc. | Retention system for attaching tool bits to a blade assembly |
US10889966B2 (en) * | 2018-04-13 | 2021-01-12 | Caterpillar Inc. | Drafted tool bit and blade assembly |
CN113748249A (en) * | 2019-04-30 | 2021-12-03 | 伊迪姆私人有限公司 | Tool rack assembly |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1539347A (en) * | 1976-04-07 | 1979-01-31 | Anderson Strathclyde Ltd | Mineral cutting tools |
GB2420360A (en) * | 2004-11-19 | 2006-05-24 | Hydra Mining Tools Internat Lt | Mineral winning pick, pick box, and combination |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1062752A (en) | 1963-07-08 | 1967-03-22 | Austin Hoy & Co Ltd | Improvements in cutter tools and tool-boxes therefor |
-
2011
- 2011-02-17 GB GBGB1102725.7A patent/GB201102725D0/en not_active Ceased
-
2012
- 2012-02-13 EP EP12155179A patent/EP2489830A2/en not_active Withdrawn
- 2012-02-15 IN IN433DE2012 patent/IN2012DE00433A/en unknown
- 2012-02-15 CA CA2768875A patent/CA2768875A1/en not_active Abandoned
- 2012-02-16 EA EA201200136A patent/EA201200136A1/en unknown
- 2012-02-16 US US13/398,105 patent/US20120274123A1/en not_active Abandoned
- 2012-02-17 AU AU2012200912A patent/AU2012200912A1/en not_active Abandoned
- 2012-02-17 ZA ZA2012/01207A patent/ZA201201207B/en unknown
- 2012-02-17 CN CN2012101147911A patent/CN102644462A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1539347A (en) * | 1976-04-07 | 1979-01-31 | Anderson Strathclyde Ltd | Mineral cutting tools |
GB2420360A (en) * | 2004-11-19 | 2006-05-24 | Hydra Mining Tools Internat Lt | Mineral winning pick, pick box, and combination |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11015303B2 (en) | 2013-05-16 | 2021-05-25 | Us Synthetic Corporation | Shear cutter pick milling system |
US11156087B2 (en) | 2013-05-16 | 2021-10-26 | Apergy Bmcs Acquisition Corporation | Pick including polycrystalline diamond compact |
US11585215B2 (en) | 2013-05-16 | 2023-02-21 | Us Synthetic Corporation | Pick including polycrystalline diamond compact |
US11926972B2 (en) | 2013-05-16 | 2024-03-12 | Us Synthetic Corporation | Shear cutter pick milling system |
US10724369B2 (en) | 2013-06-18 | 2020-07-28 | Esco Group Llc | Mineral winning pick, pick holder, and combination |
US20190381694A1 (en) * | 2014-04-30 | 2019-12-19 | Us Synthetic Corporation | Cutting tool assemblies including superhard working surfaces, material-removing machines including cutting tool assemblies, and methods of use |
US11078635B2 (en) * | 2014-04-30 | 2021-08-03 | Apergy Bmcs Acquisition Corporation | Cutting tool assemblies including superhard working surfaces, material-removing machines including cutting tool assemblies, and methods of use |
US11021953B1 (en) | 2014-07-29 | 2021-06-01 | Apergy Bmcs Acquisition Corporation | Material-removal systems, cutting tools therefor, and related methods |
US10648330B1 (en) | 2015-09-25 | 2020-05-12 | Us Synthetic Corporation | Cutting tool assemblies including superhard working surfaces, cutting tool mounting assemblies, material-removing machines including the same, and methods of use |
Also Published As
Publication number | Publication date |
---|---|
IN2012DE00433A (en) | 2015-06-05 |
EA201200136A1 (en) | 2012-11-30 |
CN102644462A (en) | 2012-08-22 |
CA2768875A1 (en) | 2012-08-17 |
AU2012200912A1 (en) | 2012-09-06 |
GB201102725D0 (en) | 2011-03-30 |
EP2489830A2 (en) | 2012-08-22 |
ZA201201207B (en) | 2015-08-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |