Abstract: A cutting bit includes a bit body and high-pressure body with a high-pressure fluid conduit therethrough. The high-pressure body and bit body are joined together. The high-pressure fluid conduit is configured to convey a fluid at greater than 14.5 ksi, and in some embodiments greater than 40 ksi. The high-pressure fluid conduit may direct the fluid through a nozzle in a fluid jet to weaken material, such as an earth formation. The cutting bit includes at least one roller cone and/or blades with cutting elements thereon to remove the weakened material. A cutting bit includes both high and low-pressure fluid conduits, and high and low-pressure fluid nozzles. The high-pressure nozzles receive fluid flow from a downhole pressure intensifier, and a connection between the bit and the downhole pressure intensifier includes rigid connectors, flexible connectors, or a combination thereof.

Abstract: A cutting bit includes a bit body and high-pressure body with a high-pressure fluid conduit therethrough. The high-pressure body and bit body are joined together. The high-pressure fluid conduit is configured to convey a fluid at greater than 14.5 ksi, and in some embodiments greater than 40 ksi. The high-pressure fluid conduit may direct the fluid through a nozzle in a fluid jet to weaken material, such as an earth formation. The cutting bit includes at least one roller cone and/or blades with cutting elements thereon to remove the weakened material. A cutting bit includes both high and low-pressure fluid conduits, and high and low-pressure fluid nozzles. The high-pressure nozzles receive fluid flow from a downhole pressure intensifier, and a connection between the bit and the downhole pressure intensifier includes rigid connectors, flexible connectors, or a combination thereof.

Abstract: A cutting bit includes a bit body and high-pressure body with a high-pressure fluid conduit therethrough. The high-pressure body and bit body are joined together. The high-pressure fluid conduit is configured to convey a fluid at greater than 14.5 ksi, and in some embodiments greater than 40 ksi. The high-pressure fluid conduit may direct the fluid through a nozzle in a fluid jet to weaken material, such as an earth formation. The cutting bit includes at least one roller cone and/or blades with cutting elements thereon to remove the weakened material. A cutting bit includes both high and low-pressure fluid conduits, and high and low-pressure fluid nozzles. The high-pressure nozzles receive fluid flow from a downhole pressure intensifier, and a connection between the bit and the downhole pressure intensifier includes rigid connectors, flexible connectors, or a combination thereof.

Abstract: A cutting bit includes a bit body and high-pressure body with a high-pressure fluid conduit therethrough. The high-pressure body and bit body are joined together. The high-pressure fluid conduit is configured to convey a fluid at greater than 14.5 ksi, and in some embodiments greater than 40 ksi. The high-pressure fluid conduit may direct the fluid through a nozzle in a fluid jet to weaken material, such as an earth formation. The cutting bit includes at least one roller cone and/or blades with cutting elements thereon to remove the weakened material. A cutting bit includes both high and low-pressure fluid conduits, and high and low-pressure fluid nozzles. The high-pressure nozzles receive fluid flow from a downhole pressure intensifier, and a connection between the bit and the downhole pressure intensifier includes rigid connectors, flexible connectors, or a combination thereof.

Abstract: A cutting bit includes a bit body and high-pressure body with a high-pressure fluid conduit therethrough. The high-pressure body and bit body are joined together. The high-pressure fluid conduit is configured to convey a fluid at greater than 14.5 ksi, and in some embodiments greater than 40 ksi. The high-pressure fluid conduit may direct the fluid through a nozzle in a fluid jet to weaken material, such as an earth formation. The cutting bit includes at least one roller cone and/or blades with cutting elements thereon to remove the weakened material. A cutting bit includes both high and low-pressure fluid conduits, and high and low-pressure fluid nozzles. The high-pressure nozzles receive fluid flow from a downhole pressure intensifier, and a connection between the bit and the downhole pressure intensifier includes rigid connectors, flexible connectors, or a combination thereof.

Abstract: A downhole tool includes a body having a bore extending at least partially therethrough. A component is disposed within the bore and arranged and designed to move axially from a first position to a second position within the bore. An axial end portion of the component has a first contact surface that is oriented at an angle from about 1° to about 45° with respect to a longitudinal axis extending through the component.

Abstract: A drill bit includes a bit body having a pin end capable of attaching to a drill string, a cutting end having a plurality of blades extending radially therefrom and separated by a plurality of channels therebetween, and a fluid plenum open to receiving drilling fluid from the drill string. The drill bit further includes at least one cutting element in a cutter pocket formed on the plurality of blades, at least one fluid flow passageway extending from the fluid plenum to at least one nozzle bore, at least one nozzle attached to the at least one nozzle bore and having a nozzle face spaced apart from the bit body, and an protruding body having an transition surface extending from the bit body to proximate the nozzle face. A width of the protruding body varies along a height of the protruding body from proximate the bit body to proximate the nozzle face.

Abstract: A downhole tool is disclosed for measuring wellbore geometry. The downhole tool may include a body with a bore extending at least partially therethrough. The body may include a radial recess. An arm may be movably coupled to the body at a first end portion of the arm. The arm may be within the radial recess in a retracted position and be pivotable in a radially-outward direction relative to the body to an expanded position. A measurement device coupled to the body may measure the pivoting motion of the arm. A piston coupled to the body may be movably coupled to a second end portion of the arm, and the piston may respond to changes in hydraulic pressure to pivot the arm between the retracted position and the expanded position.

Abstract: A turbodrill having a housing having a bore extending at least partially therethrough, a rotatable shaft disposed in the housing bore and rotatable relative to the housing, the housing, the housing bore and the rotatable shaft having a common longitudinal axis; and a plurality of turbine blades disposed at least partially within the housing bore, at least one turbine blade of the plurality of turbine blades including a first blade profile disposed at a first point along a blade span and a second blade profile disposed at a second point along the blade span, the second blade profile differing from the first blade profile.

Abstract: A bearing assembly comprising a frame; a rotating disc disposed in the frame, the rotating disc comprising a first set of inserts; and a fixed disc disposed in the frame, the fixed disc comprising a second set of inserts, the second set of inserts configured to interact with the first set of inserts, and a lip disposed adjacent the second set of inserts. Also, a bearing assembly comprising a frame; a rotating disc disposed in the frame, the rotating disc comprising a first set of inserts and at least one groove disposed axially above at least one of the inserts; and a fixed disc disposed in the frame, the fixed disc comprising a second set of inserts, the second set of inserts configured to interact with the first set of inserts.

Abstract: A downhole tool includes a body having a bore extending, at least partially therethrough. A component is disposed within the bore and arranged and designed to move axially from a first position to a second position within the bore. An axial end portion of the component has a first contact surface that is oriented at an angle from about 1° to about 45° with respect to a longitudinal axis extending through the component.

Abstract: A novel etiological hypothesis for Multiple Sclerosis (MS) is proposed describing autoimmune attack of ATP: Cob(I)alamin adenosyltransferase (ATR) thereby inhibiting synthesis of (5?-deoxy-5?-adenosyl)cobamide (referred to as 5?-deoxyadenosylcobalmin or AdoCbl) from Vitamin B 12 providing a basis for therapeutic design and diagnostic methods. Pharmaceutical compositions for therapy of MS, inflammatory neurological diseases and neurodegenerative diseases utilizing AdoCbl, growth hormones, immunomodulators, interleukins, other therapeutic agents, and physiotherapy are also described.

Abstract: A bearing assembly comprising a frame; a rotating disc disposed in the frame, the rotating disc comprising a first set of inserts; and a fixed disc disposed in the frame, the fixed disc comprising a second set of inserts, the second set of inserts configured to interact with the first set of inserts, and a lip disposed adjacent the second set of inserts. Also, a bearing assembly comprising a frame; a rotating disc disposed in the frame, the rotating disc comprising a first set of inserts and at least one groove disposed axially above at least one of the inserts; and a fixed disc disposed in the frame, the fixed disc comprising a second set of inserts, the second set of inserts configured to interact with the first set of inserts.

Abstract: A novel etiological hypothesis for Multiple Sclerosis (MS) is proposed describing autoimmune attack of ATP: Cob (I) alamin adenosyltransferase (ATR) thereby inhibiting synthesis of (5?-deoxy-5?-adenosyl) cobamide (referred to as 5?-deoxyadenosylcobalmin or AdoCbl) from Vitamin B12 providing a basis for therapeutic design and diagnostic methods. Pharmaceutical compositions for therapy of MS, inflammatory neurological diseases and neurodegenerative diseases utilizing AdoCbl, growth hormone, immunomodulators, interleukins, other therapeutic agents, and physiotherapy are described. Encompassed in embodiments are diagnostic and therapeutic methods based on the amino acid sequence which binds AdoCbl in ATR. A scoping experiment in therapy, parenteral injection of AdoCbl, has been accomplished with a clinically definite MS patient in the Secondary Progressive stage of MS. The dramatic improvement in the patient's condition strongly supports the etiological hypothesis.

Abstract: A method of manufacturing an earth-boring bit having a fluid plenum and a plurality of fluid pathways includes modeling flow characteristics of the fluid plenum and the plurality of fluid pathways, optimizing the flow characteristics to minimize fluid separation through each fluid pathway, constructing a plenum blank from the optimized model, and sintering matrix power between the plenum blank and a bit head mold to create the fluid plenum and plurality of fluid pathways.

Abstract: An earth boring bit includes a bit body including plurality of PDC cutter elements and a fluid plenum connecting a fluid inlet to at least one fluid orifice. Furthermore, a ledge formed between a bottom of the fluid plenum and the at least one fluid orifice includes a relief region formed therein located across a flow change angle. Additionally, a method to improve a polycrystalline diamond compact drill bit body design includes determining flow change angles from a fluid plenum into a fluid orifice and modeling a relief region on a ledge to optimize fluid into the fluid orifice.

Abstract: A unitary modular link or link section for use in forming a rodless conveyor belt or a section thereof is provided. The link section includes a plurality of laterally-repeating link-shaped portions, each including an apex portion and a pair of leg portions. Each apex portion includes a receiver for receiving an integral first connector extending between the leg portions of a next-adjacent link or link section, preferably in snap-fit engagement, such that relative pivoting movement is established. A second integral connector may be provided between the leg portion of each adjacent apex portion to create an engagement surface for a tooth of a drive or idler sprocket. The underside surface of each link section may also be specially contoured or curved to facilitate smooth passage over a guide structure, such as a small diameter, cylindrical nosebar or the like.

Abstract: A matrix conveying system for intended use in sorting articles and related methods of conveying and sorting articles are disclosed. In one embodiment, the matrix system comprises a plurality of first endless belt or chain conveyors extending in a first direction and a plurality of second conveyors extending in a second direction, each intersecting the plurality of first conveyors. The system may be used to sort articles delivered from one or more storage locations for distribution, or may instead be used to sort articles for delivery to one or more storage locations. In another embodiment, the system comprises a plurality of conveyors arranged in three different layers.

Abstract: An improved conveyor chain formed from a plurality of modular links arranged in rows and each associated with at least two elongated transverse connectors is disclosed. In one embodiment, the connectors together create a substantially open, planar support surface intermediate of the links in each row. Each link in a first row includes apertures for receiving a first of the connectors extending through a slot in the links of an adjacent row, as well as a receiver having a closed end and an open end for receiving one end of a second one of the connectors. The chain with the connectors associated with each row is thus capable of side-flexing to negotiate curves or bends, as well as longitudinal compression/expansion, while at all times providing full and even article support.

Abstract: A conveyor system moves one or more articles in at least a conveying direction along an endless path having a forward run and a return run. The system includes an endless chain having lateral side edges spaced apart in a direction transverse to the conveying direction, and at least one link having a surface intermediate of the side edges. A chain support positioned between the side edges includes an axle extending in the transverse direction for rotatably supporting a roller for engaging the surface of the link. The roller provides enhanced, low friction support for the chain intermediate of the side edges.