Bizarre Patents
An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 8162082 | Superabrasive compact including multiple superabrasive cutting portions, methods of making same, and applications therefor Embodiments of the invention relate to superabrasive compacts including multiple superabrasive cutting portions and methods of fabricating such superabrasive compacts. In an embodiment, a superabrasive compact comprises a cemented carbide substrate including a first... | 04/24/2012 |
| 8157029 | Thermally stable polycrystalline diamond cutting elements and bits incorporating the same Cutting elements have substrates including end surfaces. TSP material layers extend over only a portion of the end surfaces or extend into the substrates below the end surfaces. Bits incorporate such cutting elements. ... | 04/17/2012 |
| 7980334 | Diamond-bonded constructions with improved thermal and mechanical properties Diamond-bonded constructions include a diamond-bonded body having a thermally stable region extending a distance below a diamond-bonded body surface. The thermally stable region comprises a matrix phase of bonded-together diamond crystals, and interstitial regions c... | 07/19/2011 |
| 7971663 | Polycrystalline diamond compact including thermally-stable polycrystalline diamond body held in barrier receptacle and applications therefor PDCs including a barrier receptacle that holds a thermally-stable PCD body at least partially within a substrate, and methods of fabricating such PDCs are disclosed. A PDC comprises a substrate including a substrate recess formed therein, a barrier receptacle defini... | 07/05/2011 |
| 7861808 | Cutter for maintaining edge sharpness A cutter comprising a base portion, an ultrahard layer disposed on said base portion, and at least one recessed region on an outer surface of the cutter. A start of the recessed region disposed a selected distance behind a cutting face. ... | 01/04/2011 |
| 7836979 | Drill bits and tools for subterranean drilling A drill bit having a bit body includes a blade face surface on at least one blade extending longitudinally and radially outward over a face of the bit body. The blade face surface of the at least one blade includes a contact zone and a sweep zone. The sweep zone rot... | 11/23/2010 |
| 7740090 | Stress relief feature on PDC cutter A cutter having a base portion, an ultrahard layer disposed on the base portion, and at least one relief groove formed on an outer surface of the cutter. The at least one relief groove is configured to form a relief gap between the ultrahard layer and an inside surf... | 06/22/2010 |
| 7594554 | Cutting element insert for backup cutters in rotary drill bits, rotary drill bits so equipped, and methods of manufacture therefor Cutter inserts for rotary drill bits include a cutter insert body having a cutter recess configured to receive a backup cutter therein. Rotary drill bits for drilling a subterranean formation include at least one such cutter insert affixed to a blade rotationally be... | 09/29/2009 |
| 7469756 | Tool with a large volume of a superhard material In one aspect of the invention, a tool has a wear-resistant base suitable for attachment to a driving mechanism and also a hard tip attached to an interfacial surface of the base. The tip has a first cemented metal carbide segment bonded to a superhard material at a... | 12/30/2008 |
| 7461709 | Multiple diameter cutting elements and bits incorporating the same Cutting elements are provided having multiple diameter sections. Also provided are bits incorporating such cutting elements. ... | 12/09/2008 |
| 7407525 | Fracture and wear resistant compounds and down hole cutting tools Fracture and wear resistant cutting elements are provided. Examples include a cutting element formed of a wear resistant material having a binder composition and a coarse grain size such that the portion of the cutting element formed of the wear resistant material h... | 08/05/2008 |
| 7384592 | Methods for manufacturing ultrahard compacts A method for manufacturing an ultrahard compact includes assembling a mass of ultrahard material with a mass of substrate material such that the mass of ultrahard material extends radially outward a greater extent than the substrate material to compensate for a diff... | 06/10/2008 |
| 7373998 | Cutting element with improved cutter to blade transition Cutting elements having a slanted top surface for an improved cutter to blade transition, the slanted top surface being integratable into a receiving pocket of a bit blade such that the slanted top surface and the perimeter of the receiving pocket are relatively con... | 05/20/2008 |
| 7368079 | Method for forming ultra hard sintered compacts using metallic peripheral structures in the sintering cell A method for forming an ultra hard material layer is provided. The method includes disposing a metallic liner inside the periphery of a refractory metal enclosure, introducing ultra hard material feed stock into the enclosure, and sintering using HPHT processing and... | 05/06/2008 |
| 7360608 | Rotary drill bits including at least one substantially helically extending feature and methods of operation A rotary drill bit is disclosed, including at least one cutting element affixed thereto and configured to form a distinct borehole surface in response to drilling a subterranean formation. At least one substantially helically extending feature associated with the at... | 04/22/2008 |
| 7353893 | Tool with a large volume of a superhard material In one aspect of the invention, a tool has a wear-resistant base suitable for attachment to a driving mechanism and also a hard tip attached to an interfacial surface of the base. The tip has a first cemented metal carbide segment bonded to a superhard material at a... | 04/08/2008 |
| 7350601 | Cutting elements formed from ultra hard materials having an enhanced construction Cutting elements of this invention include an ultra hard body joined with a metallic substrate. The body includes an uppermost layer comprising a plurality of bonded ultra hard crystals and interstitial regions, and that defines a body working surface. The uppermost... | 04/01/2008 |
| 7347292 | Braze material for an attack tool In one aspect of the invention, a tool has a wear-resistant base suitable for attachment to a driving mechanism and also a hard tip attached to an interfacial surface of the base. The tip has a first cemented metal carbide segment bonded to a superhard material at a... | 03/25/2008 |
| 7347290 | Multi-part energizer for mechanical seal assembly An energizer for a mechanical seal assembly for use in a drill bit is disclosed. The energizer is a composite of at least two resilient materials, one having a durometer hardness that is greater than the other. The material contacting a journal provides relatively h... | 03/25/2008 |
| 7316279 | Polycrystalline cutter with multiple cutting edges A cutting element includes a layer of integrally bonded superabrasive particles disposed over a substrate. The layer has an outer circumference comprising at least one trough having a distinct cutting point on either side of the trough. A rock drilling drag bit inco... | 01/08/2008 |
| 7308957 | Fixed-head bit with stabilizing features A fixed-head drill bit includes a bit body having a plurality of cutting elements and at least one wear knuckle disposed on the bit body. Each cutting element includes a cutting surface defining a swept cutting profile when the bit is rotated about an axis. The at l... | 12/18/2007 |
| 7287610 | Cutting elements and bits incorporating the same Cutting elements and bits incorporating such cutting elements are provided. The cutting elements include a substrate having an interface surface over which is formed an ultra hard material layer. A plurality of lands are formed on the interface surface. A plurality ... | 10/30/2007 |
| 7284623 | Method of drilling a bore hole A method for drilling a borehole through a production zone underlying an overburden of various earth formations includes drilling the borehole through the overburden with a first drill bit. The first drill bit being selected to optimize at least one drilling perform... | 10/23/2007 |
| 7270199 | Cutting element with a non-shear stress relieving substrate interface The present invention includes an improved cutting element substrate for cutting elements. The cutting element substrate includes non-planar, non-linear interfaces with an abrasive layer of superhard material affixed thereto often using a high pressure high temperat... | 09/18/2007 |
| 7267187 | Braze alloy and method of use for drilling applications A down hole cutting tool includes a cutting element support structure. The cutting element support structure has at least one cavity formed therein. A cutting element is disposed in the cavity. Braze alloy is also disposed in the cavity between the cutting element a... | 09/11/2007 |
| 7258180 | Rotary hammerdrill bit A rotary hammerdrill bit for use with a percussion drilling device or a hammer drilling device, with a shank and a drill head attached to or configured on the shank, wherein a front side pointing in the advance direction of the drill head has a main cutting plate fo... | 08/21/2007 |
| 7258177 | Fracture and wear resistant compounds and rock bits An insert for a rock bit that includes tungsten carbide particles, and a cobalt binder disposed around the particles, wherein a grain size of the tungsten carbide particles and a content of the cobalt binder are selected to provide a fracture toughness of at least a... | 08/21/2007 |
| 7240746 | Bit gage hardfacing An earth boring bit has at least one rotatable cone with a gage surface that engages a sidewall of a wellbore as the bit rotates. The gage surface has hardfacing bars spaced circumferentially apart from each other. A first group of the hardfacing bars extends from t... | 07/10/2007 |
| 7237628 | Fixed cutter drill bit with non-cutting erosion resistant inserts The present invention is directed to a drill bit with non-cutting erosion resistant inserts. In one illustrative embodiment, the apparatus comprises a matrix drill bit body comprising a plurality of blades, a plurality of cutting elements positioned on each of the b... | 07/03/2007 |
| 7234550 | Bits and cutting structures An insert for a drill bit which includes a diamond impregnated body, and a shearing portion disposed on said body is shown. In addition, a method for forming a drill bit that includes (a) forming a shearing portion on a diamond-impregnated insert body to form a cutt... | 06/26/2007 |
| 7225890 | Cutting plate for a drill bit An auxiliary cutting plate (10) for a multi-cutting plate drill bit (2) has a body (44) for fixing into a slot in the drill bit (2) and a profiled tip (46). The body (44) has a central longitudinal axis and the profiled tip ... | 06/05/2007 |
| 7217180 | Diamond tape coating and methods of making and using same A method of forming and applying a diamond coating or other superhard coating to a tool, most preferably a downhole tool, such as a drill bit. A superhard powder is placed into slurry and then formed, preferably using a tape casting method, into a green tape that is... | 05/15/2007 |
| 7216565 | Methods of manufacturing and repairing steel body rotary drill bits including support elements affixed to the bit body at least partially defining cutter pocket recesses A steel body rotary drag bit for drilling a subterranean formation includes a plurality of support elements affixed to the bit body, each forming at least a portion of a cutting element pocket. Each of a plurality of cutting elements has a substantially cylindrical ... | 05/15/2007 |
| 7216727 | Drilling bit for drilling while running casing A drill bit for drilling casing in a well bore. The drill bit is constructed from a combination of relatively soft and relatively hard materials. The proportions of the materials are selected such that the drill bit provides suitable cutting and boring of the well b... | 05/15/2007 |
| 7201237 | Stabilizing system and methods for a drill bit A drill bit stabilizing system comprising a body member having an axis and at least one recess formed in the body member housing at least one stabilizing member when in a first retracted position. The stabilizing member is positionable along a diagonal angle with th... | 04/10/2007 |
| 7188691 | Metal seal with impact-absorbing ring Disclosed is a seal assembly for dynamically sealing between rotatable members, such as employed to seal the rolling cone of a rock bit. One preferred assembly includes an energizer, first and second seal rings, and a cushioning ring having an L-shaped cross-section... | 03/13/2007 |
| 7140814 | Spade-type drill bit having helical configuration A spade bit including a longitudinally extending shaft having a cutting member located at a distal end thereof. The cutting member comprises a pair of helically shaped, opposed blades joined along the longitudinal axis of the shaft and an axially extending pilot spu... | 11/28/2006 |
| 7117961 | Dynamic seal with soft interface A device and method for dynamically sealing between rotatable members such as a rolling cone of a rock bit. The assembly includes a seal ring having a facing surface of a relatively hard material, such as hardened steel or tungsten carbide, and a second seal ring of... | 10/10/2006 |
| 7108598 | PDC interface incorporating a closed network of features A superhard compact having an improved superabrasive-substrate interface region design for use in drilling bits, cutting tools and wire dies and the like. This compact is designed to provide an interface design to manipulate residual stresses to enhance the working ... | 09/19/2006 |
| 7096978 | Drill bits with reduced exposure of cutters A rotary drag bit and method for drilling subterranean formations, including a bit body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to ... | 08/29/2006 |
