Class / Patent application number | Description | Number of patent applications / Date published |
175403000 | Core forming type | 28 |
20080296069 | Novel core drill bit housing and core drill bit - The present invention is a drill bit for cutting holes in materials such as concrete comprising a cylindrical body having a leading edge, a top edge and a conical top plate. The top plate has an aperture about its center and is affixed to the top edge of the cylindrical body. A threaded nut having a shaped upper portion and a cylindrical shaped lower portion is affixed through the aperture of the top plate for connecting the bit to a drill. The leading edge is able to receive one or more cutting or abrasive pads for cutting concrete or stone. | 12-04-2008 |
20090071724 | DRILLING SYSTEMS INCLUDING FIBER-CONTAINING DIAMOND-IMPREGNATED CUTTING TOOLS - Diamond-impregnated cutting tools including fibers and drilling systems incorporating such tools are described. The cutting tools contain a diamond-impregnated cutting portion that contains fibers made from carbon, glass, ceramic, polymer, and the like. The fibers may be used to both control the tensile strength and the erosion rate of the matrix to optimize the cutting performance of the tools. Additionally, the fibers may also weaken the structure and allow higher modulus binders to be used for the cutting tools at a lower cost, allowing the amount of fibers to be tailored to retain the diamonds in the cutting portion for the desired amount. As the cutting portion erodes, the fibers may also increase the lubricity at the face of the cutting portion. Using the fibers allows the cutting tools to last longer and make them safer and more economical because they need to be replaced less often. | 03-19-2009 |
20100006344 | DRILL BITS WITH ENCLOSED FLUID SLOTS AND INTERNAL FLUTES - Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit. | 01-14-2010 |
20100012385 | DRILL BITS WITH ENCLOSED FLUID SLOTS - Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit. | 01-21-2010 |
20100012386 | DRILL BITS WITH ENCLOSED SLOTS - Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit. | 01-21-2010 |
20100089660 | DRILL BITS WITH AXIALLY-TAPERED WATERWAYS - Implementations of the present invention include drilling tools having axially-tapered waterways that can increase flushing and bit life, while also decreasing clogging. According to some implementations of the present invention, the waterways can be radially tapered in addition to being axially tapered. The axially-tapered waterways can include notches extending into the cutting face of the drilling tools and/or slots enclosed within the crown of the drilling tools. Implementations of the present invention also include drilling systems including drilling tools having axially-tapered waterways, and methods of forming drilling tools having axially-tapered waterways. | 04-15-2010 |
20100243332 | TUBULAR SOIL AUGER AND MANUFACTURING METHOD - A soil auger for creating smooth-walled cylindrical holes in the earth is provided for use with a drill. The auger has a central rotational axis with a tubular body that is open at a bottom cutting end, and enclosed at a top end by a cap assembly. The cap assembly has a top wall and a bottom wall. The top and bottom walls have apertures aligned with the central rotational axis for receiving a shaft in alignment therewith, and for attachment to a drill. The distance between the top wall and bottom wall compared to the overall length of the assembled auger determines the minimum height of the cap assembly to minimize the rotational imbalance of the auger during use for a given body length. A method of manufacturing the auger is provided using precision cutting tools to create apertures in the body and to maintain concentricity of the auger components. | 09-30-2010 |
20110031027 | CORE DRILL BITS WITH ENCLOSED FLUID SLOTS - Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit. | 02-10-2011 |
20110226533 | PROGRESSIVE CUTTER SIZE AND SPACING IN CORE BIT INNER DIAMETER - A core drilling bit comprising a tubular body having an inner diameter, an outer diameter, and a leading face spanning from the inner diameter to the outer diameter; and a plurality of cutters mounted in the face; wherein cutters mounted along the inner diameter vary in configuration. For example, the cutters may be progressively larger along the inner diameter. The interior edges of the cutters along the inner diameter may be aligned in a circle with their outer edges being aligned in a spiral. The leading edges of the cutters along the inner diameter may be aligned at a constant depth, a progressively shallower depth, or a progressively deeper depth. The cutters may be spaced progressively wider or narrower along the inner diameter. | 09-22-2011 |
20110303465 | IMPREGNATED DRILLING TOOLS INCLUDING ELONGATED STRUCTURES - Impregnated drilling tools include elongated structures that provide enhanced properties. The drilling tools contain a diamond-impregnated cutting section that contains elongated structures made from carbon, glass, ceramic, and the like. The elongated structures can comprise tubes, fibers, or rods. In one or more implementations the elongated structures are nano-sized. The elongated structures can control the tensile strength and/or the erosion rate of the drilling tools to optimize the cutting performance of the tools. Additionally, the elongated structures may also weaken the cutting section in one or more implementations; thereby, allowing higher strength binders to be used. Such higher modulus binders can cost less and allow for tailoring of the cutting section to retain the diamonds for the desired amount of time. As the cutting section erodes, the elongated structures may also increase the lubricity at the face of the cutting section. | 12-15-2011 |
20120228036 | FIBER-CONTAINING DIAMOND-IMPREGNATED CUTTING TOOLS AND METHODS OF FORMING AND USING SAME - Fibers for diamond-impregnated cutting tools and their associated methods for manufacture and use are described. A matrix is formed that contains fibers made from carbon, glass, ceramic, polymer, and the like. The matrix is then sintered to form a cutting portion of a drill bit. The type and concentration of the fibers can be modified to control the tensile strength and the erosion rate of the matrix to optimize the cutting performance of the tools. Additionally, the fibers may be added to the cutting section to weaken the structure and allow higher modulus binders to be used for the cutting tools at a lower cost, allowing the amount of fibers to be tailored to retain the diamonds in the cutting portion for the desired amount. As the cutting portion erodes, the fibers may also increase the lubricity at the face of the cutting portion. | 09-13-2012 |
20120234607 | HIGH PRESSURE CORING ASSEMBLY AND METHOD - A wireline or drill pipe retrievable coring tool with an inner barrel to receive a core, a bottom coring tool valve operable to seal off a bottom of the inner barrel and at least one pressure canister operable to receive fluid from the core in the inner barrel. The pressure canister is operable to significantly reduce the pressure inside the inner barrel utilizing an expandable chamber to receive fluid from the core as the tool is removed from the wellbore. In one embodiment, a bottom valve mechanism moves the cored formation materials out of the way of the bottom valve before the bottom valve is closed. | 09-20-2012 |
20130277120 | CUTTING STRUCTURES FOR FIXED CUTTER DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS - 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. | 10-24-2013 |
20130313026 | DRILL BITS WITH AXIALLY-TAPERED WATERWAYS - Implementations of the present invention include drilling tools having axially-tapered waterways that can increase flushing and bit life, while also decreasing clogging. According to some implementations of the present invention, the waterways can be radially tapered in addition to being axially tapered. The axially-tapered waterways can include notches extending into the cutting face of the drilling tools and/or slots enclosed within the crown of the drilling tools. Implementations of the present invention also include drilling systems including drilling tools having axially-tapered waterways, and methods of forming drilling tools having axially-tapered waterways. | 11-28-2013 |
20140216826 | SINGLE-WATERWAY DRILL BITS AND SYSTEMS FOR USING SAME - Implementations of the present invention include drilling tools having axially-tapered waterways that can increase flushing and bit life, while also decreasing clogging. According to some implementations of the present invention, the drilling tool can have a single notch extending into the cutting face and a plurality of bores extending from the cutting face to an interior space of the drilling tool. Implementations of the present invention also include drilling systems including drilling tools having a single notch and a plurality of bores. | 08-07-2014 |
20140311809 | Fiber-Containing Diamond-Impregnated Cutting Tools And Methods Of Forming And Using Same - Fibers for diamond-impregnated cutting tools and their associated methods for manufacture and use are described. A matrix is formed that contains fibers made from carbon, glass, ceramic, polymer, and the like. The matrix is then sintered to form a cutting portion of a drill bit. The type and concentration of the fibers can be modified to control the tensile strength and the erosion rate of the matrix to optimize the cutting performance of the tools. Additionally, the fibers may be added to the cutting section to weaken the structure and allow higher modulus binders to be used for the cutting tools at a lower cost, allowing the amount of fibers to be tailored to retain the diamonds in the cutting portion for the desired amount. As the cutting portion erodes, the fibers may also increase the lubricity at the face of the cutting portion. | 10-23-2014 |
20150021099 | CUTTING MEMBERS WITH INTEGRATED ABRASIVE ELEMENTS - Cutting members including a body including a first surface, a second surface spaced from the first surface and extending in a plane substantially aligned with the first surface, a leading surface extending between the first surface and the second surface, the leading surface extending in a plane transverse to the first surface and the second surface, and an attaching surface distal the leading surface, the attaching surface extending between the first surface and the second surface and a plurality of abrasive elements integrated in the body. In some examples, the cutting member is configured as a cylindrical drill bit and the abrasive elements are aligned transverse the leading surface. In some further examples, the cutting member is configured as a circular disk and the abrasive elements are aligned transverse the first surface and the second surface. | 01-22-2015 |
20150075874 | CUTTING DEVICE AND METHOD OF MAKING - A cutting device includes, at least one stack of cutting elements attached to a cutter surface having, a first element and a second element attached to the cutter surface, and a third element attached to the first element and the second element, the three elements being sized and shaped such that prior to attachment to the cutter surface the three elements are restable in a stable manner on the cutter surface due to gravity alone such that a plane-defined-surface defined by one of the two planes of a modified gilmoid of the third element positioned further from the cutter surface is oriented at an angle of about 35 to 55 degrees relative to the cutter surface. | 03-19-2015 |
20150322722 | CORING TOOLS AND RELATED METHODS - A coring bit for extracting a sample of subterranean formation material from a well bore may include a bit body having a bit face and an inner surface defining a substantially cylindrical cavity of the bit body. A first portion of the inner surface may be configured to surround a core catcher. The coring bit may include a face discharge channel inlet formed in the inner surface of the bit body longitudinally at or above the first portion of the inner surface. The coring bit may also include a face discharge channel extending through the bit body from the face discharge channel inlet to the bit face. A tubular body having a core catcher may be disposed in the coring bit to form a coring tool. Methods of forming such bit bodies may include forming an inlet for a face discharge channel in the inner surface of the bit body at a location longitudinally at or above the first portion of the inner surface and forming a face discharge channel extending from the inlet to the bit face. | 11-12-2015 |
175404000 | With core-breaking means | 3 |
20110067927 | Drill Head for Deep-Hole Drilling - Provided is a drill head for deep-hole drilling in which a cutting blade tip is mounted to face a cutting chip discharge port opened at a head distal end surface and a hollow inside is made into a cutting chip discharge passage communicating with the cutting chip discharge port, wherein high cutting efficiency based on good cutting chip dischargeability can be achieved and the cutting blade itself is also easily processed in terms of form. The drill head for deep-hole drilling is configured such that an inner end | 03-24-2011 |
20110203855 | DRILLING AND CORE REMOVAL APPARATUS AND METHOD - A drilling and core removal apparatus has a quick-change drill bit release mechanism. A drilling and core removal apparatus has a drill bit and a ground tube within the drill bit, wherein the ground tube having a geometric feature that causes cuttings to be ejected from between the drill bit and the ground tube. A drilling and core removal apparatus has a sensor for indicating that a core sample in a collet tube is approaching a stuck condition. | 08-25-2011 |
20140291034 | Coring Apparatus And Methods To Use The Same - A coring bit assembly for conveyance via wireline or drillstring in a wellbore extending into a subterranean formation. The coring bit assembly includes a coring shaft and a thrust ring coupled to an end of the coring shaft. A static sleeve is disposed inside the coring shaft and having a flange coupled to the thrust ring to space the static sleeve from the coring shaft to form a drilling fluid passageway between the coring shaft and the static sleeve. An axial fluid pump is disposed on the coring shaft to engage with the static sleeve to drive drilling fluid through the drilling fluid passageway formation. | 10-02-2014 |
175405100 | Includes diamond | 6 |
20090242278 | Hard material insert - A segmental hard material insert for a working tool has a planar polycrystalline diamond layer ( | 10-01-2009 |
20100200304 | ABRASIVE TIP FOR ABRASIVE TOOL AND METHOD FOR FORMING AND REPLACING THEREOF - Abrasive tip for abrasive tool and method for forming and replacing thereof are disclosed. The abrasive tip facilitates easy and quick attachment to an abrasive tool. | 08-12-2010 |
20130140095 | DRILL BIT ALLOY - A drill bit matrix is provided that contains a powdered abrasive material and a refractory metal powder in which the refractory metal powder is a coated powder in which each granule of the refractory metal powder is coated by a coating material. A core drill bit is further provided, containing a powdered abrasive material, a refractory metal powder and a steel tube onto which the powdered abrasive material and refractory metal powder are alloyed. The refractory metal powder is a coated powder in which each granule of the refractory metal powder is coated by one or more coating materials. A method is finally provided for manufacturing a core drill bit. First a matrix is formed by mixing together a powdered abrasive material and a coated refractory metal powder. The matrix is placed in a mould and a steel tube is placed on top of the mould to form a drill bit assembly. The drill bit assembly is then heated under atmospheric conditions. The steel tube is then hot pressed into the heated matrix and the drill bit assembly is allowed to cool before releasing the cooled drill bit from the mould. | 06-06-2013 |
20140138162 | Diamond Mining Core Drill Bit And Methods Of Making Thereof - A core drill bit includes an elongate hollow cylindrical body having opposite first and second end sections, a plurality of cutting segments with a connecting portion joined to the second end section, a plurality of reinforcing members joined to the second end section between the cutting segments and contacting adjacent cutting segments to offer rotational support thereto, and a plurality of current concentrators disposed on one or both of the second end section and the connecting portion. The cutting segments being capacitive discharge welded to the second end section whereby the surface of the second end section melts during the welding to affix the cutting segments with the tool body. The cutting segments include diamonds dispersed therein with portions having varying diamond concentrations. | 05-22-2014 |
20140231149 | FIBER-CONTAINING DIAMOND-IMPREGNATED CUTTING TOOLS AND METHODS OF FORMING AND USING SAME - Fibers for diamond-impregnated cutting tools and their associated methods for manufacture and use are described. A matrix is formed that contains fibers made from carbon, glass, ceramic, polymer, and the like. The matrix is then sintered to form a cutting portion of a drill bit. The type and concentration of the fibers can be modified to control the tensile strength and the erosion rate of the matrix to optimize the cutting performance of the tools. Additionally, the fibers may be added to the cutting section to weaken the structure and allow higher modulus binders to be used for the cutting tools at a lower cost, allowing the amount of fibers to be tailored to retain the diamonds in the cutting portion for the desired amount. As the cutting portion erodes, the fibers may also increase the lubricity at the face of the cutting portion. | 08-21-2014 |
20150300096 | DRILL BITS WITH AXIALLY-TAPERED WATERWAYS - Drilling tools having axially-tapered waterways that can increase flushing and bit life, while also decreasing clogging. According to some implementations of the present invention, the waterways can be radially tapered in addition to being axially tapered. The axially-tapered waterways can include notches extending into the cutting face of the drilling tools and/or slots enclosed within the crown of the drilling tools. Implementations of the present invention also include drilling systems including drilling tools having axially-tapered waterways, and methods of forming drilling tools having axially-tapered waterways. | 10-22-2015 |