| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Improved rock-drill | US53602D | US53602A | 1866-04-03 | ||
| 82 | 굴착용 비트 | KR1020150153233 | 2015-11-02 | KR101705284B1 | 2017-02-13 | 계진태 |
| 본발명은굴착용비트에관한것으로서, 첨단굴착면이형성되고, 외경면에복수개의스토퍼수용홈이등각배치되며, 후단에슬라이딩축부가형성되는비트헤드부; 몸체가길이방향으로길게형성되고, 양측면에축돌기가형성되며, 상기축돌기가상기비트헤드부의상기스토퍼수용홈에형성된가이드홈을따라삽입되어상기비트헤드부의첨단굴착면인근에펼침및 접힘이가능하게설치되는윙 비트; 및상기윙 비트가상기비트헤드부의외측방향으로돌출되어펼침상태를유지할수 있도록일측에상기스토퍼수용홈에깊이삽입되어상기윙 비트와접촉되는제 1 길이의제 1 스토퍼가설치되고, 타측에상기스토퍼수용홈에낮게삽입되어상기윙 비트의접힘공간을형성할수 있는상기제 1 길이보다짧은제 2 길이의제 2 스토퍼가설치되는외통부재;를포함할수 있다. | ||||||
| 83 | 천공장치용 비트 | KR1020140135174 | 2014-10-07 | KR101608969B1 | 2016-04-04 | 배현진; 정경수 |
| 지반에천공홀을형성하는천공장치용비트에관한것이다. 천공장치용비트는몸체부와, 프레임과, 천공비트를포함한다. 몸체부는승강및 회전가능하게형성된다. 프레임은비트몸체부의하단에착탈가능하게설치되며, 선단둘레를따라복수의수용홀이형성된다. 천공비트는복수개구비되며, 프레임의수용홀에각각삽입되어천공작업을수행한다. | ||||||
| 84 | 굴삭 공구 | KR1020107002124 | 2008-07-28 | KR1020100035654A | 2010-04-05 | 나까무라가즈요시 |
| An excavation device in which, even if an engagement pin is pushed in an insertion/removal direction by an impact during excavation, the engagement pin is firmly fixed so as not to move. The excavation device (10) has a tool body (20) having an installation hole (32) and also has an installation member (40). The installation member (40) has an installation shaft (45) inserted into the installation hole (32) and also has a groove (46) formed in the outer peripheral surface of the installation shaft (45) so as to cross the direction of extension of the installation shaft (45). In the tool body (40) is formed a pin hole (33) extending in the direction crossing the direction of extension of the installation hole (32), with a part of the pin hole (33) penetrating the installation hole (32). The engagement pin (56) engaging with the groove (46) in the installation shaft (45) that is inserted in the installation hole (32) is inserted in the pin hole (33). At an opening of the pin hole (33), there are arranged a fixation member (50) and an engagement section (57). The fixation member (50) is a rigid body and makes contact with an end surface of the engagement pin (56) to fix it. The engagement section (57) fixes the fixation member (50) by engaging it in the direction of extension of the pin hole (33). | ||||||
| 85 | 내마모성이 강화된 커터홀더 | KR2020020028944 | 2002-09-27 | KR200301325Y1 | 2003-01-24 | 강낙준 |
| 본 고안은 커터홀더에 관한 것으로서, 요홈이 형성된 돌출단과 상기 돌출단 아래의 밀착단을 가지는 일 측면과, 상단의 초경팁과 상기 초경팁 하부에서 길이방향으로 형성되는 요홈을 가지는 타 측면과, 상기 타 측면 요홈과 일체로 연결되는 요홈을 가지는 하 측면으로 이루어지는 커터와, 길이방향으로 형성되는 요홈과 상기 요홈의 상단에서 수직으로 형성되어 상기 요홈을 막는 막힘단을 가지는 일 측면과, 상기 커터의 돌출단요홈에 대응되는 걸림삽입단을 포함하는 걸림단과 상기 걸림단 아래에 밀착단을 가지는 타 측면으로 이루어지는 인서트와, 상기 커터의 요홈과, 상기 인서트의 요홈에 각각 대응되는 제1, 2삽입단을 가지는 삽입부를 가지는 홀더를 포함하여 상기 커트와 상기 인서트가 상기 홀더의 각 삽입단에 밀착 결합되는 커터홀더를 제� ��한다. | ||||||
| 86 | EARTH REMOVAL MEMBER WITH FEATURES FOR FACILITATING DRILL-THROUGH | PCT/US2011066607 | 2011-12-21 | WO2012088323A3 | 2013-04-18 | UGWUOCHA SHARP OKORIE; RAE STEVEN |
| An earth removal member with features for facilitating drill-through is provided for drilling with casing or liner applications. In one embodiment, the casing bit includes a tubular body (5); a nose (10) attached to one end of the tubular body (5), wherein the nose (10) includes a blade support (14) and comprises a drillable material; a blade (15) attached to the blade support (14) using mating profiles (31, 43); cutters (20) disposed along the blade (15); and a nozzle (30) disposed in the nose (10). | ||||||
| 87 | Rolling cutter with retaining ring | US15466446 | 2017-03-22 | US09976356B2 | 2018-05-22 | Yuri Y. Burhan; Jibin Shi; Chen Chen; Youhe Zhang |
| A cutting element includes a sleeve, a rotatable cutting element, and at least one retaining ring. The sleeve has a first inner diameter and a second inner diameter, wherein the second inner diameter is larger than the first inner diameter and located at a lower axial position than the first inner diameter. The rotatable cutting element has an axis of rotation extending therethrough, a cutting face, a body extending axially downward from the cutting face, wherein the body has a shaft that is disposed within the sleeve, and a circumferential groove formed around an outer surface of the shaft. The at least one retaining ring is disposed in the circumferential groove and extends at least around the entire circumference of the shaft, wherein the at least one retaining ring protrudes from the circumferential groove, thereby retaining the rotatable cutting element within the sleeve. | ||||||
| 88 | ROLLING CUTTER WITH CLOSE LOOP RETAINING RING | US15466446 | 2017-03-22 | US20170191317A1 | 2017-07-06 | Yuri Y. Burhan; Jibin Shi; Chen Chen; Youhe Zhang |
| A cutting element includes a sleeve, a rotatable cutting element, and at least one retaining ring. The sleeve has a first inner diameter and a second inner diameter, wherein the second inner diameter is larger than the first inner diameter and located at a lower axial position than the first inner diameter. The rotatable cutting element has an axis of rotation extending therethrough, a cutting face, a body extending axially downward from the cutting face, wherein the body has a shaft that is disposed within the sleeve, and a circumferential groove formed around an outer surface of the shaft. The at least one retaining ring is disposed in the circumferential groove and extends at least around the entire circumference of the shaft, wherein the at least one retaining ring protrudes from the circumferential groove, thereby retaining the rotatable cutting element within the sleeve. | ||||||
| 89 | Rolling cutter with close loop retaining ring | US13972465 | 2013-08-21 | US09605486B2 | 2017-03-28 | Yuri Burhan; Jibin Shi; Chen Chen; Youhe Zhang |
| A cutting element is disclosed that includes a sleeve, a rotatable cutting element, and at least one retaining ring. The sleeve has a first inner diameter and a second inner diameter, wherein the second inner diameter is larger than the first inner diameter and located at a lower axial position than the first inner diameter. The rotatable cutting element has an axis of rotation extending therethrough, a cutting face, a body extending axially downward from the cutting face, wherein the body has a shaft that is disposed within the sleeve, and a circumferential groove formed around an outer surface of the shaft. The at least one retaining ring is disposed in the circumferential groove and extends at least around the entire circumference of the shaft, wherein the at least one retaining ring protrudes from the circumferential groove, thereby retaining the rotatable cutting element within the sleeve. | ||||||
| 90 | Drilling systems and multi-faced drill bit assemblies | US14458351 | 2014-08-13 | US09574407B2 | 2017-02-21 | Kevin W. Clark; Chinedu I. Nduka |
| A drill bit assembly that includes a shank including a shank axis, first and second ends, a drill bit seat at the second end and a central flow bore extending axially from the first end. Additionally, the assembly includes a sleeve disposed about and translatable axially relative to the shank and a drill bit rotatably coupled to the sleeve. The drill bit includes a first bit face having a first cutting structure configured to engage an earthen formation, and a second bit face having a second cutting structure configured to engage the earthen formation. The drill bit is configured to rotate about the about the shank axis in a cutting direction, and to rotate about an axis of rotation being orthogonal to the shank axis to selectively expose the first or second cutting surface to the earthen formation. The seat is configured to receive the first or second bit face. | ||||||
| 91 | Earth-boring tools including movable cutting elements and related methods | US13892766 | 2013-05-13 | US09399892B2 | 2016-07-26 | Eric Do; Juan Miguel Bilen; Philip Christof Schulte; Jason E. Hoines |
| Earth-boring tools may have a body, a cutting element attached to the body at a first location, and a formation-engaging structure attached to the body at a second location. The formation-engaging structure may be movable during a drilling operation between a first position and a second position. In the first position, the formation-engaging structure may be located rotationally behind the cutting element at a first radial distance from a longitudinal axis of the body at which the cutting element will at least initially shield the formation-engaging structure from engaging a formation. In the second position, the formation-engaging structure may be located at a different second radial distance from the longitudinal axis of the body at which the formation-engaging structure will engage a formation. | ||||||
| 92 | Rolling cutter with improved rolling efficiency | US13677105 | 2012-11-14 | US09291000B2 | 2016-03-22 | Youhe Zhang; Yuelin Shen; Yuri Burhan; Kjell Haugvaldstad |
| A cutting structure may include an outer support element; and an inner rotatable cutting element comprising a cutting surface at its upper end; wherein the inner rotatable cutting element comprises at least one line contact along a circumferential side surface thereof and/or at least one point contact at a bottom face thereof. | ||||||
| 93 | Earth-boring tools including replaceable cutting structures and related methods | US13299914 | 2011-11-18 | US09115554B2 | 2015-08-25 | Chaitanya K. Vempati; Timothy K. Marvel; Suresh G. Patel |
| Earth-boring tools include a body and one or more replaceable cutting structures attached to the body at a face region of the body. Each replaceable cutting structure includes an attachment member and a cutting portion located to engage an earth formation. Methods of forming an earth-boring tool involve attaching one or more cutting elements to a replaceable cutting structure; positioning the replaceable cutting structure proximate a region of a body of an earth-boring tool that is susceptible to at least one of localized wear and localized impact damage; and attaching the replaceable cutting structure to the body. Methods of repairing an earth-boring tool involve bringing a replaceable cutting structure proximate at least one portion of a body of an earth-boring tool exhibiting at least one of localized wear and localized impact damage; and attaching the replaceable cutting structure to the earth-boring tool at the at least one portion. | ||||||
| 94 | EARTH-BORING TOOLS INCLUDING MOVABLE CUTTING ELEMENTS AND RELATED METHODS | US13892766 | 2013-05-13 | US20140332283A1 | 2014-11-13 | Eric Do; Juan Miguel Bilen; Philip Christof Schulte; Jason E. Hoines |
| Earth-boring tools may have a body, a cutting element attached to the body at a first location, and a formation-engaging structure attached to the body at a second location. The formation-engaging structure may be movable during a drilling operation between a first position and a second position. In the first position, the formation-engaging structure may be located rotationally behind the cutting element at a first radial distance from a longitudinal axis of the body at which the cutting element will at least initially shield the formation-engaging structure from engaging a formation. In the second position, the formation-engaging structure may be located at a different second radial distance from the longitudinal axis of the body at which the formation-engaging structure will engage a formation. | ||||||
| 95 | Drill bit having rotational cutting elements and method of drilling | US13933883 | 2013-07-02 | US08763727B1 | 2014-07-01 | Craig H. Cooley; Jeffrey B. Lund; Jair J. Gonzalez |
| A rotary drill bit is disclosed. The rotary drill bit may include a bit body, a cutting pocket defined in the bit body, and a cutting element rotatably coupled to the bit body. The cutting element may be positioned at least partially within the cutting pocket. The rotary drill bit may also include a rotation-inducing member adjacent to the cutting element for inducing rotation of the cutting element relative to the cutting pocket. The rotation-inducing member may include a resilient member or a vibrational member. The rotary drill bit may also include protrusions extending from an interior of the cutting pocket adjacent to an outer diameter of the cutting element. A method of drilling a formation is also disclosed. | ||||||
| 96 | METHOD OF USING SPRING LOADED BLOCKER TO RETAIN ROLLING CUTTERS OR MECHANICAL LOCK CUTTERS | US14081593 | 2013-11-15 | US20140131118A1 | 2014-05-15 | Chen Chen; Yuri Burhan; Jibin Shi |
| A cutting element assembly may include a sleeve; an inner cutting element in the sleeve; and a blocker retained in the sleeve with at least one locking device and covering a portion of a cutting face of the inner cutting element. Cutting tools may include a tool body; a plurality of blades extending radially from the tool body, each blade comprising a leading face and a trailing face; a plurality of cutter pockets on the plurality of blades; at least one cutting element in one of the cutter pockets; and at least one blocker positioned adjacent to a cutting face of the at least one cutting element and the leading face of the blade, the blocker being retained to the cutter pocket with at least one locking device. | ||||||
| 97 | CUTTING ELEMENTS RETAINED WITHIN SLEEVES | US13786085 | 2013-03-05 | US20130333953A1 | 2013-12-19 | YOUHE ZHANG; JIBIN SHI; YURI BURHAN; CHEN CHEN |
| A cutter assembly may include a sleeve; and at least one cutting element having a lower spindle portion retained in the sleeve and a portion of the cutting element interfacing an axial bearing surface of the sleeve, wherein an outer diameter D of the cutting element and a radial length T of a substantially planar portion of the axial bearing surface of the sleeve have the following relationship: ( 1/25)D≦T≦(¼)D. | ||||||
| 98 | CUTTING STRUCTURES FOR FIXED CUTTER DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS | US13826193 | 2013-03-14 | US20130277120A1 | 2013-10-24 | Michael G. Azar; Bala Durairajan; Madapusi K. Keshavan |
| A downhole cutting tool may include a tool body; a plurality of blades extending azimuthally from the tool body; and a plurality of cutting elements disposed on the plurality of blades, the plurality of cutting elements comprising: at least two non-planar cutting elements comprising a substrate and a diamond layer having a non-planar cutting end, wherein at least one of the at least two conical cutting elements has a positive back rake angle or positive side rake angle, and at least one of the at least two non-planar cutting elements has a negative back rake angle or a negative side rake angle. | ||||||
| 99 | DRILL BITS HAVING ROTATING CUTTING STRUCTURES THEREON | US13651947 | 2012-10-15 | US20130098688A1 | 2013-04-25 | ZHOU YONG; JIAN WU |
| A drill bit may include a bit body rotatable about a longitudinal axis and having, at one end, a connection for securing the drill bit to a drill string and having a face opposite the connection end; and a plurality of cutting structures having at least one fixed cutting structure disposed on the bit body face and at least one cutting body rotatably attached to the face of the bit body; wherein, in a rotated view of the plurality of cutting structures into a single plane, there is substantially no radial overlap between at least one fixed cutting structure and the at least one cutting body. | ||||||
| 100 | Excavation tool | US12733064 | 2008-07-28 | US08104551B2 | 2012-01-31 | Kazuyoshi Nakamura |
| Provided is an excavation tool which can firmly fix a locking pin so that the locking pin does not move even in the case of an impact during excavation and/or the locking pin being pushed out in the insertion/removal direction.The excavation tool (10) includes a tool body (20) having an attaching hole (32) and an attaching member (40).The attaching member (40) is provided with an attaching shaft (45) inserted into the attaching hole (32), and the outer peripheral surface of the attaching shaft (45) is provided with a groove (46) which crosses the extension direction of the attaching shaft (45).The tool body (40) is provided with a pin hole (33) extending in a direction crossing the extension direction of the attaching hole (32). A part of the pin hole (33) passes through the attaching hole (32).A locking pin (56), which can engage with the groove (46) of the attaching shaft (45) inserted into the attaching hole (32), is inserted into the pin hole (33). An opening of the pin hole (33) is provided with a fixing member (50) which is a rigid body and abuts on the end face of the locking pin (56) to fix the locking pin, anda locking portion (57) which locks the fixing member (50) in the extension direction of the pin hole (33) to fix the fixing member. | ||||||
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