Abstract: A concealed hinge for a turn-tilt window with a fixed frame and leaf includes of a pair of scissors with a first arm and second arm, that are connected by a central hinge and which are hingeably connected by a first end to a mounting slat that is intended to be mounted on the frame, and have a hinge at a second end for coupling to the leaf. The first arm is connected by its first end to the mounting slat with a fixed frame hinge with a peg fastened to the mounting slat and the second arm is connected by its first end to the mounting slat by a shiftable frame hinge with a peg that is shiftably affixed in a guide slot of the mounting slat, whereby in the closed situation of the scissors, the mounting slat serves as a support for the tilting movement of these scissors.

Abstract: Disclosed is a sliding door self-closing device configured to automatically close a door moving along a rail straightly aligned with an extension rail. The sliding door self-closing device includes a damper configured to move along the rail to automatically close the door and smoothen a closing speed, and a roller assembly pivotably connected to a front end of the damper to move along the rail and provided to be rotatable at the front end of the damper by a predetermined angle. Therefore, it is possible to ensure appropriate driving along the rail even when the rail is deformed. In addition, it is possible to easily remove the damper and the roller assembly through a short space of the extension rail.

Abstract: Disclosed is a multi-directional rotational sliding door self-closing device configured to automatically close a door moving along a rail straightly aligned with an extension rail. The self-closing device includes: a damper provided with a roller at its rear end and configured to move along the rail to automatically close the door and smoothen a closing speed; a roller assembly multi-directionally rotatably connected to a front end of the damper and configured to move along the rail; and a roller bracket connected to the roller assembly and fixed to an upper end of the door; and a coil spring inserted into an insertion hole provided in the roller assembly and configured to abut on a tip of the damper when the damper and the roller assembly are straightly aligned. The rail can be appropriately driven even when the rail is deformed. The damper and the roller assembly can be easily removed through a short space of the extension rail.

Abstract: An integrated casement window operator and lock mechanism including an arm shiftable with a lever handle between a first position of the lever handle wherein the window is closed and the sash is locked to the frame with a hook defined in an arm of the operator and lock mechanism, a second position wherein the hook is disengaged so as to unlock the sash from the frame, and a third position wherein the arm is pivoted outward to move the sash out of the frame, thereby opening the window.

Abstract: A system for detecting presence of an external obstacle combining contact and non-contact sensing in a common safety edge of a motorized closure includes a sensing edge with an elongate sheath forming a cavity in which two electrically conductive elements are physically and electrically separated. A control circuit includes an oscillator electrically connected to the conductive elements and that drives each at a drive frequency to establish an electric field. A controller is electrically connected to the first and second conductive elements and determines whether (i) the first and second conductive elements are in electrical contact with one another or (ii) a change to the drive frequency exceeds a threshold value. In response to a finding of either condition (i) or (ii), the controller outputs a signal to initiate or disrupt motion of the motorized closure. Two inductors connected to the conductive elements isolate the oscillator from the controller.

Abstract: A modular door drive control system for subjecting electrical drive motors to open-loop control and/or closed-loop control to open and close doors or door leaves in different applications includes at least one motor control unit, and a plurality of peripheral adaptation units for adapting the motor control unit or a plurality of the motor control units to match one of the different applications, where the motor control unit or a plurality of the motor control units are selectively connectable to each of the peripheral adaptation units to transmit electrical power for the drive motor, which is respectively connected to the motor control unit, via a common intermediate circuit such that door drive controllers for different applications can be realized with the aid of a modular door drive control system of this kind, without a relatively high level of expenditure on adaptation.

Abstract: A power door opening device comprises a casing; a motor mounted to the casing; a planetary gear unit housed in the casing to reduce rotation speed of the motor; and an output mechanism that transmits reduced rotation from the planetary gear unit to a door to open and close the door. The planetary gear unit comprises a sun gear that rotates with a rotary shaft of the motor; a planetary carrier fixed in the casing; a planetary gear that is rotatably supported to the planetary carrier and meshes with the sun gear; and a ring gear that is rotatably supported in the casing and meshes with the planetary gear. Both ends of the sun gear are supported.

Abstract: A system for analyzing a current movement of a point on a garage door can include a memory, a port, and a processor. The memory can be configured to store a profile. The profile can be produced from one or more previous movements of the point on the garage door. The port can be configured to receive, from a sensor, a signal that corresponds to the current movement of the point on the garage door. The processor can be configured to perform an analysis of the signal with respect to the profile. The processor can be configured to produce a result of the analysis.

Abstract: A storage safe formed from a flexible fabric having a generally rectangular closeable outer shell, at least one longitudinal cable conduit channel and at least one latitudinal cable conduit channels and a plurality of wire cables of predefined length substantially disposed within said cable conduit channels wherein said longitudinal and latitudinal cables traverse the interior surfaces of the outer shell and further wherein said wire cable ends extend beyond said cable conduit channels; adjustable cable locks in operative contact with each wire cable end; at least one storage container disposed within said outer shell, wherein the wire cables are positioned within said wire conduit channels are drawn down upon and tightened on said storage container to form a wire cage and said each adjustable cable lock engages the opposite end of said wire cables end to securely lock the wire cables in place and further comprising a plurality of voids on a lower surface thereof and a separate cable segment and adjustable lo

Abstract: A substrate is coated on one face with a thin-film multilayer including at least one functional metal film based on silver or made of silver having a thickness e of between 7 nm and 20 nm inclusive of these values, and two antireflection coatings each including at least one antireflection film. The functional film is placed between the two antireflection coatings. The multilayer includes a lower discontinuous metal film having a thickness e? of between 0.5 nm and 5 nm inclusive of these values. The lower discontinuous metal film is located between the face and the only or first functional metal film as counted starting from the face.

Abstract: A method for manufacturing solid core, panel doors by cutting a panel pocket into a solid core door according to a main routing path. Additionally, a decorative panel is cut from a piece of material according to a panel routing path. Once the panel pocket and the decorative panel have been cut, the decorative panel is bound within the panel pocket; preferably using an adhesive. A plurality of stops is then perimetrically bound about the decorative panel and the panel pocket in order to form an aesthetic border around the decorative panel. Preferably, a computer numerical control machine is utilized to cut the panel pocket into the solid core door and the decorative panel from the piece of material.

Abstract: A cord drive assembly for raising a covering relative to an architectural structure may include a housing and at least one cord drive component mounted for rotation within the housing. Additionally, in one embodiment, the cord drive assembly may include a biasing element installed relative to the housing such that the biasing element applies a biasing force against a braking member of the cord drive assembly that biases the braking member against the cord drive component to hinder rotation of the cord drive component relative to a second cord drive component positioned within the housing.

Abstract: A winding mechanism adapted for window blinds includes a shaft and at least one spiral groove configured on the shaft. The shaft has a wider first end and a narrower second end, and a diameter of the shaft is gradually reduced from the wider first end to the narrower second end, one end of a pull rope is connected with the shaft, and the other end of the pull rope is connected with slats, the pull rope in turn winds around the spiral groove from the wider first end to the narrower second end, or in turn disengages from the spiral groove from the narrower second end to the wider first end. The force moment of the pull rope is varied with the diameter of the shaft, thereby an effortless and quick operation to pull or lift the window blind is obtained, and no rebound or no falling problem happens.

Abstract: A climbing system for inhibiting a ladder from tipping includes a ladder that may be climbed. A platform is provided and the platform may be positioned on a support surface. The ladder is removably coupled to the platform such that the platform inhibits the ladder from tipping.

Abstract: Mitts, boots or pads are formed from a deformable material, such as foam and/or memory foam and/or gel filled for more protection of walls. When the mitts are disposed on the ends of the rails of the ladder, and the ladder is placed against a wall, the mitts help prevent damage to the wall or building by the ladder. The mitts can help prevent damage to any building surface, such as acrylic, stucco, siding, aluminum window and fascia capping, gutters, soft wood, sheetrock, painted or stained surfaces, and the like. The mitts can include an outer covering with enhanced friction properties that can help grip the structure upon which the ladder is placed. A ladder protection pad may also be used on any type of wall, where the larger the pad the more protection due to the fact that ladder and the user's weight are displaced over a larger area.

Abstract: A portable, shallow well-drilling apparatus is described. The apparatus is lightweight, modular, and easy to transport to and assemble at a remote drill site. The apparatus includes a generally rectangular frame having a plurality of multi-segment support beams in spaced relation extending vertically from a lower base to a top cap, no component of which exceeds five feet in length, a winch assembly attached to the frame, and a motor removably mounted on the frame and slidable up and down the beams via the winch assembly. The apparatus further includes a transmission removably coupled to the motor, and a drill pipe assembly removably coupled to the transmission.

Abstract: A downhole steering tool includes one or more steering blades selectively extendable from a housing. Each steering blade may be extended by fluid pressure within a steering cylinder. Each steering cylinder may be coupled to the interior of a mandrel positioned within the housing through an adjustable orifice. The adjustable orifice may be moved between an open and a partially open position. The adjustable orifice may be solenoid controlled or controlled by a ring valve. The adjustable orifice may generate one or more pressure pulses to transmit data to the surface.

Abstract: In one embodiment, a casing bit drive assembly may be used with a casing drilling system. The casing bit drive assembly may include one or more of the following: a retrievable drilling motor; a decoupled casing sub; a releasable coupling between the motor and casing bit; a releasable coupling between the motor and casing; a cement diverter; and a casing bit.

Abstract: Stabilizer-reamer for drilling string characterized in that it comprises a mixture of diamond impregnated inserts, the mixture comprising cutting diamond impregnated inserts and wear resistant diamond impregnated inserts, said wear resistant diamond impregnated inserts having smaller diamond grain size and higher diamond concentration than said cutting diamond impregnated inserts.

Abstract: The present disclosure related to polycrystalline diamond (PCD) having chemical vapor deposition (CVD) deposits and to PCD elements and drill bits containing such CVD-modified PCD. The present disclosure further relates to method of forming such materials.

Abstract: A clamp for supporting an apparatus, such as a pump, a motor, or other mechanism to be lowered into a drill hole includes two coupling halves connected together using a bolts and nuts. Each half has a semicircular interior that forms a cylinder when two halves are connected to each other. Protrusions in the semi-circular interiors mate with indentations in the pump wall to support the pump. Chains or other devices attach to eyelet bolts or to a pivoting bail affixed on top of the coupling halves so that the clamp and the pump may be raised or lowered by external lifting apparatus.

Abstract: A cable is used for running a load between surface and downhole in a well. The cable includes one or more wires composed of a non-metallic material. Each of the one or more wires bears the load from the surface and can electrically conduct between the surface and downhole. An insulating material is disposed about the one or more wires and insulates the electrical conduction. The non-metallic material includes a carbon nanotube wire. A jacket can be disposed about the insulating material, and the jacket can be composed a non-metallic material also, such as carbon nanotube wire. Markers disposed at predefined distances along the length of the cable are used to determine the deployed length of the cable.

Abstract: Techniques and systems to couple a high pressure casing string to a blowout preventer or a subsea shut-in device. A device includes a locking mechanism configured to interface with a terminal end of a casing string of an offshore platform to couple the device to the terminal end of the casing string. The device also includes a sealing mechanism configured to fluidly seal an area around the terminal end of the casing string, wherein the locking mechanism and the sealing mechanism are disposed at separate positions along a vertical orientation of the device.

Abstract: The present invention provides a device, namely a Hydraulic-Mechanical Pipe Connector that allows a simple, user friendly way to attach pipe and tools to one another whether this is a single connection to a bottom hole assembly or a Splice connection joining two pipe ends together, thereby eliminating the need for tools such as wrenches and tongs and removing the need and difficulty of requiring pipe rotation to make up the connection. It also provides a simple, safe and efficient manner to affix a tool, sub assembly, bottom hole assembly or similar oil tools to the end of a pipe that has no thread attachment, without the need for the hand tools and wrenches. More importantly, the present invention provides a device that can splice multiple pipe or coil sizes together using the hydraulic actuation technique.

Abstract: A centralizer assembly installed on a casing section. A bow spring assembly having bow spring members is installed around the outer surface of the casing section and can rotate about the outer surface of the casing section. A portion of the casing section that is aligned with the bow spring assembly is swaged to increase the outer diameter of that section. Bow spring heel supports prevent bow spring members from contacting the outer surface of the central casing section when compressed. Non-abrasive materials prevent damage to wellhead or other polished bore receptacles.

Abstract: An apparatus for delivering drill pipe has a support frame, a catwalk platform, and a slide platform that are pivotally connected together. A drill pipe rack, a chain drive, and a kicker direct the drill pipe to and from the catwalk platform. A hydraulically actuated piston lifts the catwalk platform and slide platform into alignment to create a single inclined delivery platform extending from the ground to the rig floor. A powered means lifts or lowers the drill pipe along the delivery platform.

Abstract: A method for putting together a down-the-hole drilling apparatus for plastic pipe drilling. The down-the-hole drilling apparatus has a drilling device for carrying out drilling by using a drilling unit with a plastic pipe, which drilling unit includes in its drilling head a drilling arrangement. The plastic pipe is arranged to be pulled into the hole to be drilled by a power influence directed thereto from the drilling unit, being coupled with the second drilling means in a manner transmitting power at least in the longitudinal direction of the drilling device. The drilling unit and the plastic pipe are coupled by a skirt part that exists at an opposite end of the drilling arrangement, with respect to the drilling surface of the drilling unit, which skirt part has an internal protrusion assembly in radial direction.

Abstract: Methods and systems for enhancing workflow performance in the oil and gas industry may estimate the properties of drilling muds (e.g., density and/or viscosity) located downhole with methods that utilize real-time data, estimated drilling mud properties, and mathematical models. Further, the methods described herein may optionally account for the uncertainties induced by sensor readings and dynamic modeling.

Abstract: Embodiments of the present disclosure may provide an acoustic transceiver system and a method for installing the acoustic transceiver system. The acoustic transceiver system may include at least one acoustic transceiver. The acoustic transceiver system may also include at least one magnet coupled to the at least one acoustic transceiver. The magnet may attach the at least one acoustic transceiver to a component of a hydrocarbon production system.

Abstract: A wellbore intervention tool for use in penetrating an obstruction in a wellbore includes a cutting tool having at least one rotating cutter member for penetrating the obstruction. A displacement mechanism coupled to the cutting tool sets and adjusts a cutting position of the cutting tool relative to a tool axis. A sweeper coupled to the displacement mechanism deflects the displacement mechanism about the tool axis, and the cutting tool is deflected with the displacement mechanism.

Abstract: A wellbore isolation device comprising: a first material, wherein the first material: (A) is a metal or a metal alloy; and (B) partially dissolves when an electrically conductive path exists between the first material and a second material and at least a portion of the first and second materials are in contact with an electrolyte; and an electrolytic compound, wherein the electrolytic compound dissolves in a fluid located within the wellbore to form free ions that are electrically conductive. A method of removing the wellbore isolation device comprises: placing the wellbore isolation device into the wellbore; and allowing at least a portion of the first material to dissolve.

Abstract: A packoff assembly for sealing between an inner tubular member and an outer tubular member has a lower packoff which is configured to seal between the inner and outer tubular members, an upper packoff which is configured to seal between the inner and outer tubular members above the lower packoff, the upper packoff being releasably connected to the lower packoff and, when connected to the lower packoff, being axially movable relative to the lower packoff between a first position and a second position, a latch ring which is supported on the lower packoff, the latch ring being radially expandable into a corresponding locking groove in the outer tubular member, and a locking mandrel which is operably engaged by the upper packoff such that upon axial movement of the upper packoff from the first position to the second position, the locking mandrel expands the latch ring into the locking groove to thereby lock the upper and lower packoffs in position between the inner and outer tubular members.

Abstract: A lockdown tool for locking down a high pressure wellhead with a conductor wellhead housing includes a housing that includes a conductor wellhead housing facing surface designed to come in contact with a conductor wellhead housing positioned at or near a seafloor. The housing further includes a lockdown mechanism facing surface designed to come in contact with a lockdown mechanism that is between the conductor wellhead housing and a high pressure wellhead seated in the conductor wellhead housing. The housing also includes a wellhead facing surface having a profile that matches a profile of the high pressure wellhead formed on an outer surface of the high pressure wellhead. The lockdown tool further includes a piston positioned in a cavity of the housing and a hydraulic pressure port extending through a wall of the housing for applying hydraulic pressure by an external hydraulic pressure source into the cavity of the housing.

Abstract: A technique facilitates control of subsea equipment by providing a modular electro-hydraulic control system which can be used with various types of subsea equipment. The modular system is constructed to accommodate high axial loading while also withstanding high bending forces. Additionally, the components of the modular system are constructed and arranged to enable the modular system to fit through a rotary table of a rig. Depending on the parameters of a given application, the modular control system may be utilized for open water operations and in-riser operations.

Abstract: A baffle system for use in well casing having a plurality of landed subs therein, for progressive injection of a fracking or treating fluid into a hydrocarbon formation via existing or created perforations in the well casing. The baffle members provide a plug seat, and are each frangibly affixed to a conveying tool and have collet finger protuberances thereon. The collet finger protuberances of each baffle are of a different width, and respectively engage only one annular recess of a corresponding width in a respective landing sub. Each annular recess and/or collet finger protuberance on an uphole edge thereof has a chamfer which allows disengagement of the collet finger protuberances and thus removal of the baffle member from the well casing upon upward force being applied to the baffle member. A method of using the baffle system is also disclosed.

Abstract: An isolation tool and method including a mandrel, a load ring, a large seal, at least two small seals, at least one slip, and a nose cone. The tool may include a slip backup, a level, a groove, at slip segments, a drilled hole, a nut such as a bridge plug nut, an interior flat section, an interior leveled section, and/or gripping material. The isolation tool is preferably a frac plug and the slip is preferably a composite slip.

Abstract: A plug for sealing a well in oil and gas recovery operations, and a method of removing the plug from the well is provided. The method is an erosion method of dislodging the plug from the wellbore, and the plug is designed so as to better be removed through erosion. The plug includes a jetting component to direct an abrasive fluid during the erosion method.

Abstract: Cement slurry injected or delivered into a wellbore during cementing operations can be positively placed with a positive placement tool. The tool can be located along to a casing string and have a mandrel with a tubular centralizer sleeve rotatably fit thereabout, the centralizer sleeve having one or more radial guides extending longitudinally thereon. Reciprocal stroking of the casing string causes a helical drive arrangement, acting between the mandrel and the centralizer sleeve, to drive the centralizer sleeve longitudinally along a length of the mandrel while concurrently rotating the centralizer sleeve thereabout. The rotational movement of the centralizer sleeve provides positive impetus to force the injected cement slurry fully about the casing string.

Abstract: Some aspects of what is described here relate to analyzing a well cement slurry. In some aspects, a well cement slurry is mixed in a mixer under a plurality of conditions. The plurality of conditions correspond to a plurality of distinct Reynolds number values for the well cement slurry in the mixer. Power number values associated with mixing the well cement slurry in the mixer under the plurality of conditions are identified. Each power number value is based on an amount of energy used to mix the well cement slurry under a respective one of the plurality of conditions. Values for parameters of a functional relationship between power number and Reynolds number are identified based on the power number values and the Reynolds number values for the plurality of conditions.

Abstract: A fluid fracturing system include a fracturing fluid flow regulation assembly which can connect in various configurations to a fracturing tree of a wellhead. The fracturing fluid flow regulation assembly connected to the fracturing tree can be connected by one or more fluid conveying conduits to one or more fracturing fluid pumps, without use of a conventional intermediate fracturing manifold.

Abstract: A dummy valve comprising a housing and a rupture disc disposed within the housing, wherein the housing and the rupture disc define a first internal chamber and associated systems and methods.

Abstract: A well bore system comprising: a well bore (110); a tubular (130) disposed within the well bore (110), wherein the tubular (130) and the well bore (110) define an annulus; a first conduit (140) disposed within the tubular (130); and a second conduit (160) disposed within the annulus and associated methods.

Abstract: A method of protecting an article from a downhole environment comprises growing carbon nanotubes on a surface of a substrate via a chemical vapor deposition process; the carbon nanotubes having a first end formed on the surface of the substrate and a second end extending away from the substrate; filling the spaces among the carbon nanotubes with a metallic material or a polymeric material forming a coated article; and exposing the coated article to a downhole environment.

Abstract: A method of supplying chemicals to an underwater location via a supply line (1), the method comprising the steps of: at a first end (13) of the supply line, supplying a chemical mixture comprising at least two non-identical chemicals; and at a second end (3) of the supply line, separating the chemical mixture into its constituent chemicals, wherein the first end of the supply line is located at a surface location and the second end of the supply line is located at an underwater location.

Abstract: A mud sag monitoring system may be configured for real-time evaluation of sagging potential of a circulating mud. The monitoring system may include both physics-based sagging prediction models and data-driven sagging detection classifiers that allow for predicting the sagging potential. The sagging potential may also be quantified with a sagging severity index and associated with a specific location within the mud circulation system. The sagging severity and location predictions may provide a framework for mitigation of mud sagging using automatic control techniques.

Abstract: Two control strategies may be implemented to optimize mud circulation in a drilling mud circulation system. In a networked control strategy, the mud circulation system does not involve any centralized controller yet all the local controllers can exchange information in real-time via a central data storage. The master-slave control strategy involves a centralized optimizer, and the subsystems are treated as slave systems and are driven by a visual master control system.

Abstract: A running tool assembly for running a high pressure wellhead and a mudline closure device (MCD) to or near a seafloor includes test plug detachably attached within the running tool assembly. Methods of running a high pressure wellhead and a MCD to or near a seafloor using the running tool assembly are provided. Methods of testing the MCD are also provided.

Abstract: A gravel pack system can include a manifold having at least three flow passages isolated from each other, with each of the passages intersecting a same lateral cross-section. A method can include displacing a service string, thereby controlling flow through ports that provide communication with a manifold exterior, the manifold including at least three flow passages, one port providing communication between one passage and the manifold exterior, and another port providing communication between another passage and the manifold exterior, and in one position of the service string, the one passage is in communication with a well annulus via another port providing communication with the manifold exterior, and the one passage is in communication with another well annulus via the one port, the annuli being isolated from each other by a packer, and the other port is in a seal bore and disposed longitudinally between the other ports.

Abstract: A well screen assembly includes an elongate base pipe, a shroud layer about the base pipe, and a mesh layer between the shroud layer and the base pipe. A portion of the mesh layer overlaps another portion of the mesh layer to form an area of overlap. A spine is positioned proximate substantially an entire length of the area of overlap, and transmits a force from the shroud layer to the mesh layer that compresses and seals the area of overlap against passage of particulate.

Abstract: An expansion tool includes a housing and a hydraulic power section for stroking an expander on a pulling mandrel through a bore of an expandable liner, the expansion tool including a ratcheting reaction assembly, having a ratchet rack and a ratcheting component thereon, that engages a proximal end of the liner to prevent axial movement of the liner as the expander is drawn through a portion of the bore of the liner to expand the liner. The ratcheting reaction assembly remains engaged with the proximal end of the liner as the housing is repositioned uphole to permit staged expansion of the liner using the expander. The expansion tool improves sealing and structure integrity of the expanded liner within the casing by maintaining the liner in a position throughout the staged expansion process.