| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | DRILL BIT WITH SELF-ADJUSTING PADS | EP14785132 | 2014-04-17 | EP2986804A4 | 2016-12-28 | JAIN JAYESH R; BILEN JUAN MIGUEL |
| Earth-boring tools may include a body and a passively adjustable, aggressiveness-modifying member secured to the body. The passively adjustable, aggressiveness-modifying member may be movable between a first position in which the earth-boring tool exhibits a first aggressiveness and a second position in which the earth-boring tool exhibits a second, different aggressiveness responsive to forces acting on the passively adjustable, aggressiveness-modifying member. | ||||||
| 102 | Bohrkrone zum Bohren eines Baugrundes und Verfahren zum Lösen einer Bohrkrone zum Bohren eines Baugrundes von einem Rohr in abgeteuftem Zustand | EP13195384.6 | 2013-12-02 | EP2878761B1 | 2016-08-24 | Lintschinger, Markus |
| 103 | GOUGING CUTTER STRUCTURE AND DRILL BIT MADE THEREWITH | EP15186359.4 | 2015-09-23 | EP3000959A1 | 2016-03-30 | BEATON, Timothy, P.; MARLEY, Ryan, J. C.; WONG, Alex; HERMAN, John, James; JAMES, Phillip, K.; ISNOR, Sidney, J.; WILKINS, Dallas, Scott |
A gouging cutter (18) includes a cutting element (18B) having a cutting end (118) and a mounting feature displaced from the cutting end (118) and a cutter body affixable to a drill bit body (11). The cutter body has a corresponding mounting feature arranged to cooperate with the mounting feature on the cutting element (118) to retain the cutting element (118) to the cutter body so as to enable rotation of the cutting element (118) therein. A drill bit may include a bit body (11) having features to enable connection to a drill string and at least one of the foregoing gouging cutters (18) mounted to the bit body (11).
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| 104 | SYSTEM AND METHOD FOR LEG RETENTION ON HYBRID BITS | EP12704599.5 | 2012-02-07 | EP2673451B1 | 2015-05-27 | RICKS, Gregory L.; FELDERHOFF, Floyd C.; PESSIER, Rudolf Carl |
| 105 | CUTTER FOR SHAFT AND/OR TUNNEL BORING | EP13714691.6 | 2013-01-25 | EP2809868A2 | 2014-12-10 | NARVESTAD, Stein |
| A cutter is provided for shaft and/or tunnel boring which comprises a divided cutter ring (10a, 10b) and a cutter body (8) with a recess (17). The cutter ring (10a, 10b) is secured in the recess (17) by a divided clamping ring (18). The clamping ring (18) is divided into at least two segments (18a, 18b) where each segment (18a, 18b) has two segment ends, with the result that when the clamping ring (18) is tightened, a number of pairs of opposite segment ends are formed. Furthermore, in a tightened condition, all the pairs of opposite segment ends are either connected to securing elements (20), or, in a tightened condition, at least one pair of opposite segments ends is connected with a hinged device (19) while the remaining pairs of opposite segment ends are connected to securing elements (20). The segments (18a, 18b) are tightened in the segments' (18a, 18b) circumferential direction. | ||||||
| 106 | COMPOSITE DRILL BIT | EP11806308 | 2011-07-15 | EP2594729A4 | 2014-11-12 | YANG YING XIN; CHEN LIAN; LIN MIN; PEI ZHU; REN HAI TAO |
| 107 | PROCEDE DE REMPLACEMENT D'UNE MOLETTE DE TUNNELIER, DISPOSITIF DE MANIPULATION ET MOLETTE ADAPTES A UN TEL PROCEDE | EP10796346.4 | 2010-12-14 | EP2516791B1 | 2014-05-14 | DERYCKE, Jean-Noël; RUBRECHT, Sébastien |
| 108 | BEARING ASSEMBLY FOR ROTARY DRILLS | EP10854223.4 | 2010-06-30 | EP2588705A1 | 2013-05-08 | MARTIN, Kevin |
| A bearing assembly is for a rotary drill, the drill including a base with a shaft and a bit. The bearing assembly includes a bearing having a central axis and including an inner member disposeable on the shaft and an outer member disposed about the inner member. The outer member is angularly displaceable about the axis with respect to the inner member and having an outer circumferential surface and a recess extending generally radially inwardly from the outer surface. At least one and preferably a plurality of retainer members are each disposed at least partially within the bearing outer member recess and is configured to engage with the bit so as to rotatably couple the bit with the shaft. Preferably, each retainer member includes a generally spherical ball rollable through a passage and into the bearing recess during installation into the recess. | ||||||
| 109 | EXTERNAL, DIVORCED PDC BEARING ASSEMBLIES FOR HYBRID DRILL BITS | EP10757902.1 | 2010-09-16 | EP2478177A2 | 2012-07-25 | KULKARNI, Ajay V. |
| A hybrid-type earth boring drill bit is described having fixed cutting blades and rolling cones with cutting elements, wherein the rolling cones are associated with a spindle assembly that may be optionally divorced from the head pin assembly, and which includes bearing members that further include a plurality of polycrystalline diamond elements. | ||||||
| 110 | A method for reducing residual stress in a roller cone bit | EP09007820.5 | 2006-07-14 | EP2101037A1 | 2009-09-16 | Zahradnik, Anton F.; Jones, Ronnie L.; Nguyen, Don Q.; Ricks, Gregory L.; Beuershausen, Christopher G.; Sullivan, Eric C. |
A roller cone bit comprising stress reduction means for reducing residual stress at the barrier (e.g., weld) (29) and the perimeter area (23) of the head (15) adjacent the outer diameter to increase the service load capacity and the service life of the roller cone bit. The stress reduction means comprises forming a barrier (29) at the perimeter area (23) to retain the ball plug (27) in the ball way (21) by forming a weld from a material selected from the group consisting of: nickel; nickel alloy; stainless steel; and Inconel.
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| 111 | SYSTEM5 METHOD, AND APPARATUS FOR REDUCING RESIDUAL STRESS IN AS-WELDED ROLLER CONE BIT BALL PLUG WELDS | EP06787231.7 | 2006-07-14 | EP1904713B1 | 2009-09-09 | ZAHRADNIK, Anton, F.; JONES, Ronnie, L.; NGUYEN, Don Q.; RICKS, Gregory L.; BEUERSHAUSEN, Christopher C.; Sullivan, Eric C. |
| A roller cone bit has a ball retention system to secure the cones to the head. A radial ball race includes a ball way with a ball plug to keep the balls in the ball race. The ball plug is secured to the head by welding. Any residual stress in the weld region is alleviated by one of several solutions. Material may be selectively removed from the weld, the heat-affected zone, and/or the surrounding area to promote relaxation of residual stress. Alternatively, deflection is imposed and/or heat or vibration is applied to promote relaxation. | ||||||
| 112 | Apparatus for directional drilling | EP04076817.8 | 2001-05-29 | EP1493897B1 | 2008-02-20 | Smith, Michael Gerald; Hicks, Melvin Flois |
| 113 | Apparatus for directional drilling | EP04076817.8 | 2001-05-29 | EP1493897A3 | 2005-04-20 | Smith, Michael Gerald; Hicks, Melvin Flois |
A hole opener and method for using same which allows for a greater number of cone cutters (135) to be attached to the hole opener. The support structure provided by the present invention uses a barrel which is attached to the drill stem (105) to effectively increase the diameter of the drill stem (105) so that additional cutters (135) may be attached to the hole opener. Using the barrel structure, the structural integrity of the tool is not compromised, and a support structure for the cutters (135) is provided. The cone cutters may be removable from the barrel. The removable structure is provided by placing a bolt (305) inside the segments (140) which is used to mate the segment (140) with a pocket (145) attached to the barrel. This results in a very versatile tool in that the same boring head may be used for boring various types of materials. The barrel structure of the present invention also provides a means for trapping cones (135) inside the barrel to prevent the cone cutters (135) from being left inside the hole. The tapered shape of the hole opener allows it to be forced back to the point of entry after drilling in order to displace debris. |
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| 114 | WELL DRILLING BIT | EP02764640.5 | 2002-07-05 | EP1404941B1 | 2005-03-16 | RUNIA, Downe, Johannes |
| A well drilling bit (1) comprising a bit body (8) attachable to a tubular drill string (3), which bit body (8) is internally provided with a passageway (18) providing fluid communication, when the drill string (3) is attached to the bit body (8), between the interior (19) of the drill string and the exterior (20) of the bit body (8); a closure element (25) for selectively closing the passageway (18); and one or more chip-making elements (11,12,13), wherein the chip-making elements (11,12,13) comprise one or more roller- cones (11,12,13), wherein the closure element is releasably connectable to the bit body, and outwardly movable from a closing position to an opening position, and wherein the closure element includes at least one of the roller-cones. | ||||||
| 115 | Apparatus for directional drilling | EP04076817.8 | 2001-05-29 | EP1493897A2 | 2005-01-05 | Smith, Michael Gerald; Hicks, Melvin Flois |
A hole opener and method for using same which allows for a greater number of cone cutters (135) to be attached to the hole opener. The support structure provided by the present invention uses a barrel which is attached to the drill stem (105) to effectively increase the diameter of the drill stem (105) so that additional cutters (135) may be attached to the hole opener. Using the barrel structure, the structural integrity of the tool is not compromised, and a support structure for the cutters (135) is provided. The cone cutters may be removable from the barrel. The removable structure is provided by placing a bolt (305) inside the segments (140) which is used to mate the segment (140) with a pocket (145) attached to the barrel. This results in a very versatile tool in that the same boring head may be used for boring various types of materials. The barrel structure of the present invention also provides a means for trapping cones (135) inside the barrel to prevent the cone cutters (135) from being left inside the hole. The tapered shape of the hole opener allows it to be forced back to the point of entry after drilling in order to displace debris. |
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| 116 | WELL DRILLING BIT | EP02764640.5 | 2002-07-05 | EP1404941A1 | 2004-04-07 | RUNIA, Douwe, Johannes |
| A well drilling bit (1) comprising a bit body (8) attachable to a tubular drill string (3), which bit body (8) is internally provided with a passageway (18) providing fluid communication, when the drill string (3) is attached to the bit body (8), between the interior (19) of the drill string and the exterior (20) of the bit body (8); a closure element (25) for selectively closing the passageway (18); and one or more chip-making elements (11,12,13), wherein the chip-making elements (11,12,13) comprise one or more roller- cones (11,12,13), wherein the closure element is releasably connectable to the bit body, and outwardly movable from a closing position to an opening position, and wherein the closure element includes at least one of the roller-cones. | ||||||
| 117 | MODULAR ROTARY DRILL BIT | EP95928785.5 | 1995-08-08 | EP0775245B1 | 2003-10-29 | HUFFSTUTLER, Alan, Dee; DIETZ, Wesley, Paul |
| A rotary cone drill bit (20) for forming a borehole (24) having a one-piece bit body (40) with a lower portion (46) having a convex exterior surface (48) and an upper portion (42) adapted for connection to a drill string (22). A number of support arms (70) are preferably attached to pockets (54) formed in the bit body (40) and depend therefrom. Each support arm (70) has an inside surface (76) with a spindle (82) connected thereto and an outer surface (80). Each spindle (82) projects generally downwardly and inwardly with respect to the longitudinal axis (72) of the associated support arm (70) and the central axis (50) of the bit body (40). A number of cone cutter assemblies (100) equal to the number of support arms (70) are mounted respectively on each of the spindles (82). | ||||||
| 118 | APPARATUS FOR DIRECTIONAL DRILLING | EP01939678 | 2001-05-29 | EP1285145A4 | 2003-10-08 | SMITH MICHAEL GERALD; HICKS MELVIN FLOIS |
| A hole opener and method for using same which allows for a greater number of cone cutters (135) to be attached to the hole opener. The support structure provided by the present invention uses a barrel which is attached to the drill stem (105) to effectively increase the diameter of the drill stem (105) so that additional cutters (135) may be attached to the hole opener. Using the barrel structure, the structural integrity of the tool is not compromised, and a support structure for the cutters (135) is provided. The cone cutters may be removable from the barrel. The removable structure is provided by placing a bolt (305) inside the segments (140) which is used to mate the segment (140) with a pocket (145) attached to the barrel. This results in a very versatile tool in that the same boring head may be used for boring various types of materials. The barrel structure of the present invention also provides a means for trapping cones (135) inside the barrel to prevent the cone cutters (135) from being left inside the hole. The tapered shape of the hole opener allows it to be forced back to the point of entry after drilling in order to displace debris. | ||||||
| 119 | ROCK BIT WITH ENHANCED FLUID RETURN AREA | EP95928786 | 1995-08-08 | EP0775247A4 | 2000-09-06 | HUFFSTUTLER ALAN DEE |
| A rotary cone drill bit (20) for forming a borehole (24) having a one-piece bit body (40) with a lower portion (46) having a convex exterior surface and an upper portion (42) adapted for connection to a drill string (22). A number of support arms (70) are preferably attached to the bit body (40) and depend therefrom. Each support arm (70) has an inside surface (76) with a spindle (82) connected to the associated support arm (70). A number of cone cutter assemblies (100) equal to the number of support arms (70) are mounted on each of the spindles (82). The support arms (70) are spaced on the exterior of the bit body (40) to provide enhanced fluid flow between the lower portion (46) of the bit body and the support arms (70). Also, the length of the support arms (70) is selected to provide fluid flow between the associated cutter cone assembly (100) and the lower portion (46) of the bit body. The same bit body may be used with various rotary cone drill bits having different gauge diameters. | ||||||
| 120 | TIEFBOHRWERKZEUG | EP98902981.0 | 1998-01-07 | EP0958084A1 | 1999-11-24 | RIBBECK, Willi; LANGE, Wolfgang |
| The invention relates to the drilling head of a deep drilling tool consisting of a tubular base element (1) having a cutting jaw (8) on one of its faces (7). On said face, the base element is fitted with cutting plates (4, 6) which can be interchangeably arranged and which are by and large cuboid-shaped, being configured quadratically when viewed from the top. The end part of the base element (1) situated on the opposite side of the face (7) has an internal thread (3) for attaching a drilling rod. The cutting jaw (8) is uninterruptedly connected to a central hollow cavity (10). The cutting plates are configured symmetrically in relation to a transverse centre plane, which makes it possible to use all eight cutting edges. | ||||||
