Abstract: A key (10, 10A), comprising: a blade (20); a plurality of encoding bores (12a, 12b, 12c, 12d, 12e) in the blade (20); and wherein at least one (12d) of the encoding bores is designed to allow a corresponding pin (16d) of a lock (44) thereof to cross an entire thickness (50) of the blade (20), thereby increasing the number of encoding combinations of the lock (44).

Abstract: A rekeyable lock cylinder includes a plug body with a keyway opening along a longitudinal axis and a multiple of channels transverse to the axis. A rekeying feature located adjacent to the keyway opening.

Abstract: A cylinder lock and an associated key, the lock comprising a fixed body and a plug, which is accommodated within a respective cavity or the body and can rotate with respect to the body. The plug comprises a substantially longitudinal compartment for the functional accommodation of a key which comprises a grip portion from which an elongated body extends which is provided with coding grooves and protrusions on its outer surface; between the plug and the body there are respective accommodation channels for translating coding elements, which open onto the substantially longitudinal compartment; the plug comprises at least one auxiliary duct, which faces the substantially longitudinal compartment and extends at least partially in the body, for the sliding accommodation of at least one coding unit that is constituted by at least one pin and at least one conical portion.

Abstract: A method for keyless access to a drawer is provided. The method comprises inserting a tool into an access mechanism. The access mechanism comprises a plug comprising a locking mechanism configured to restrict access to the drawer. The access mechanism also comprises a cover configured to fit over, and couple to, the plug. The access mechanism also comprises a keyhole within the cover. The method also comprises actuating the tool within the keyhole, wherein actuating the tool causes the cover to deform such that it no longer couples to the plug.

Abstract: An external lock assembly for sliding doors or windows comprising a pair of reciprocatingly moving sliding bolt carriage handle members (8a, 8b) that move locking bolt members (7a, 7b) and a pair of associated guide blocks (18a, 18b) fixedly mounted onto the body (12) of the lock assembly. At least one of the guide blocks is provided with a recessed region (20) adapted to accomodate an immobilizer member (21) that maintains at least one corresponding locking bolt member at locked condition.

Abstract: Provided is a housing with at least two doors for locking respective housing openings, comprising: a locking unit, which, for each of the doors, has a respective locking-element module with at least one locking body and with a locking drive for actuating the locking body, wherein the locking drive for the locking-element modules has a common drive element, which can be moved and moves the locking body/bodies for just one of the doors into an unlocking setting and, in a second adjustment position, moves the locking bodies for all of the doors into an unlocking setting; or locking units, wherein one or more respective locking units can be activated for unlocking the associated door of the at least two doors of the housing, and respective locking units can be activated for unlocking all of the associated doors of the at least two doors of the housing.

Abstract: A threaded security device has a knob with a female threaded bore adjacent to one end and extending into an interior of it's body, and a generally cylindrical bore communicating between an end of the threaded bore at the interior of the body and a second opposite end of the body. A threaded security member has a body that is sized to fit completely into the cylindrical bore of the threaded knob, the body of the threaded security member having another female threaded bore adjacent to one end, and a key receiver adjacent to an opposite end from the threaded bore. The key receiver has a key receiver configuration that is selected from a plurality of different key receiver configurations. A key has a key configuration that is selected from a plurality of different key configurations and corresponds to the key receiver configuration of the threaded security member.

Abstract: The invention concerns a lock, in particular for a motor vehicle bonnet extending horizontally at least in sections, with a locking mechanism consisting of a rotary latch (16) and a retaining pawl (1) for locking the rotary latch (16), with a release lever (2) for opening the locking mechanism, and with an accumulator lever (10) for temporarily holding the retaining pawl (1) in its open position while the locking mechanism is being opened, the accumulator lever (10) taking the form of a spring.

Abstract: The invention relates to a motor vehicle door lock which is equipped with a locking mechanism, an actuating lever mechanism, comprising at least one actuating lever and a coupling lever, and finally at least one blocking element. The blocking element ensures a mechanical connection between the actuating lever and the coupling lever during normal operation. In the event of acceleration forces of a specified magnitude, for example during an accident, the blocking element mechanically separates the actuating lever and the coupling lever. According to the invention, a locking element is provided in addition to the blocking element, said locking element acting on an actuating element for the coupling lever such that at least during an accident, the coupling lever is not just mechanically separated from the actuating lever but additionally assumes the “locked” position.

Abstract: A locking member for locking a rod in a path for the rod to pass through, wherein the path is formed to have a substantially heart shape, wherein the locking member includes a speed regulation path portion for regulating entrance speed by causing the rod that enters the path to fluctuate, and a locking portion for locking the rod whose entering speed is regulated, wherein the speed regulation path portion extends in a vertical direction that is perpendicular to a width direction of the locking member, and the speed regulation path portion includes rod receiving portions that are disposed at a start edge and an end edge, wherein the rod receiving portions are for regulating the entering speed by receiving the fluctuation in a forward and backward direction of the rod that enters the speed regulation path portion.

Abstract: A roller unit for a sliding door comprises a connector assembly adapted to be secured to a sliding door. The connector assembly comprises a spindle. A wheel is mounted to the spindle of the connector assembly for rotation about the spindle, a circumferential groove defined in the wheel and configured for receiving an upwardly-facing edge portion of a transom. A tab projects from the connector assembly, the tab having an upwardly-facing surface adapted to be positioned under and vertically aligned with a downwardly-facing surface of the transom, a gap between the upwardly-facing surface and the downwardly-facing surface being equal or less than a depth of the circumferential groove. The roller unit holds the sliding door captive vertically on the transom while permitting translational movement of the door by rotation of the wheel about the spindle along the transom.

Abstract: A system (100) for sliding a door (101) comprises a bottom slide rail (103) adapted to be placed on the ground so that the door (101) can rest on the bottom slide rail (103). A connecting device (108) can slide in the bottom slide rail (103). This connecting device (108) is attachable to a bottom part of the door (101). A drive device (110) exerts a driving force on the connecting device (108) in order to slide the connecting device (108) in the bottom slide rail (103).

Abstract: A closure is described. In a preferred embodiment a novel door roller is presented that is more resistant to a dislodgement force. The door roller comprises a bearing that rolls on a piece of round stock that is part of a door guide. When a dislodgement force is imposed on the door, the door bows and the bearing contacts the stock preventing dislodgement of the door roller from its track and allow the door to remain operational.

Abstract: One embodiment of the present invention provides a control device of a vehicle opening-closing member that includes a vehicle state determination unit that determines a traveling state of the vehicle based on a signal indicating a traveling state of a vehicle; an open/close state determination unit that determines an opening/opened state of the opening-closing member based on a signal indicating an opening/opened state of an opening-closing member provided to the vehicle; and a control unit that outputs a control signal for stopping an opening motion of the opening-closing member when it is determined by the vehicle state determination unit that the vehicle is in a state of traveling and when it is determined by the open/close state determination unit that the vehicle opening-closing member is in an opening/opened state.

Abstract: A geared motor includes a motor and a reduction drive. The reduction drive includes a gear housing, a speed reduction-output member, and a restriction portion. The gear housing includes a support shaft. The speed reduction-output member includes a reduction gear, an output gear meshed with an input member, and an accommodation recess. The speed reduction-output member is rotationally supported by the support shaft. The restriction portion is configured to restrict movement of the speed reduction-output member relative to the support shaft. The restriction portion is located between an outer circumferential surface of the support shaft and an inner circumferential surface of the accommodation recess. The restriction portion is located in an axial direction of the support shaft at a position that differs from a portion, where the speed reduction-output member abuts in a radial direction against the input member.

Abstract: A detector includes a plurality of sensors and is configured to detect a user in preliminarily set detection areas. The sensors are arrayed horizontally at a rear portion of a vehicle such that the detection areas of the adjacent sensors overlap with each other. If any one of the sensors detects the user and outputs a detection signal (first detection signal), a threshold for a detection signal of one of the sensors adjacent to the sensor (second detection signal) is raised and the first and second detection signals are converted to first and second binary signals, respectively. A rear door is opened if the second binary signal has an output period that is contained in an output period of the first binary signal.

Abstract: A door entryway system is disclosed. The door entryway system may have a door sweep capable of attachment to a bottom of a door panel and a threshold assembly. The threshold assembly may include a threshold substrate, an upwardly open sill channel on the substrate and a substantially rigid threshold cap biased upwardly, and vertically adjustable by rotating during interaction with the door sweep. The threshold cap and door sweep contact to form a sealing barrier when the door panel is in a closed position. The threshold assembly may also include a cap base formed separate from the threshold cap, the cap base at least partially positioned within the sill channel, the cap base supporting the threshold cap.

Abstract: A description is made of a flexible spacer for double glazing made of Polyisobutylene elastomer or butyl rubber IIR (simple or halogenated), suitably loaded with both reinforcing and inert fillers. The spacer can be cross-linked with sulphur or peroxides. The spacer is impermeable to moisture and has high low thermal conductivity gas sealing capacity, and incorporates moisture absorbing material. In particular, the spacer features—on each side wall—at least a small wave (13a) positioned immediately above the accumulation area of the internal or primary sealant (15) so as to ensure an optimal adhesion to the glass of the double/triple glazing unit within which the spacer is fitted and features at least one recess (13b), with a configuration such as to allow the external sealant to penetrate and create a strong mechanical bond between the two materials.

Abstract: A reverse molded, plant-on decorative panel component comprises a panel portion lying on a first plane, a skirt portion, and a contoured portion. The skirt portion has a first surface adapted to be exteriorly disposed and an opposite second surface adapted to be interiorly disposed in order to be adhesively secured to a planar surface. The contoured portion extends outwardly from and surrounds the panel portion and interconnects and is integral with the panel portion and the skirt portion. The skirt portion extends peripherally about the contoured portion.

Abstract: A door component, a door, and a method for manufacturing the same. The door may be an external domestic door. The door component includes a thermally insulating material sandwiched by a first layer and a second layer. The component has at least one strengthening bar sandwiched by the first and second layers. The first and second layers are cross-laminated plywood. The strengthening bar(s) are advantageously cross-laminated. Related doors and methods of manufacture are disclosed.

Abstract: A corner member for use in connecting two screen frame members together, the corner members having first and second mutually connected legs with each of the legs incorporating a leaf spring therein such that when the legs are inserted into the screen frame members, the leaf spring is compressed and functions to retain the screen frame member in position.

Abstract: The present invention relates to a smoke or fire barrier for closing an opening in a building, the barrier including: a curtain for closing the opening; means arrangeable at a head of the opening for deploying the curtain and for retracting the curtain; guide means at sides of the opening for retaining edges of the curtain after deployment and for reducing flow of smoke past the edges of the curtain, the guide means including: a pair of jaws for holding the edges of the deployed curtain, at least one of the jaws being movable towards the other and means for moving the or each movable jaw after deployment of the curtain.

Abstract: An exterior wall structure includes first to fourth waterproofing members. Each of the first to fourth waterproofing members includes a fixing portion, a positioning portion, a separating portion, a supporting portion, and first and second seal portions. The positioning portion extends continuously with the fixing portion toward the exterior side. The positioning portion positions an exterior wall material by coming into abutment with an end face of the exterior wall material. The separating portion extends continuously with the positioning portion toward the sash body side so as to be located between the sash body and the exterior wall material. The first seal portion inhibits the entry of water by coming into abutment with the exterior wall material. The second seal portion inhibits the entry of water by coming into abutment with the sash body.

Abstract: A sealing assembly includes a door and a seal. The door includes a flexible body that is movable between an open position and a closed position. The seal is movable between an engaged position in which the seal is positioned in engagement with a portion of the flexible body when the flexible body is in the closed position and a disengaged position in which the seal moves away from the portion of the flexible body as the flexible body moves from the closed position to the open position such that the flexible body is spaced from the seal to minimize frictional engagement with the seal.

Abstract: A blind body braking mechanism used in a non-cord window blind assembly is disclosed to include two take-up wheels, two one-way clutch units respectively disposed adjacent to the two take-up wheels and respectively provide one clutch wheel, two guide rods respectively disposed at one lateral side relative to one respective take-up wheel in a parallel manner relative to the axis of the take-up wheels, and two transmission cords respectively extending over one respective guide rod and wound round one respective one-way clutch wheel with respective one end thereof fixedly connected to one respective one-way clutch wheel. Subject to the functioning of the guide rods, the transmission cords can be properly wound round the respective take-up wheels.

Abstract: A spring drive system includes a housing, an extendible window cover coupled with the housing, and at least one lift cord coupled to the cover for raising and lowering the window cover. A spring drive system comprises a first spring drive spool spaced apart from a second spring drive spool and at least one spring having a storage end coupled to one of the spring drive spools and an output end coupled to the other of the spring drive spools. A first cord spool has a first cord spool axis. The lift cord extends from the first cord spool to the window cover for assisting in raising and lowering of the cover, and the spring drive system affects rotation of the first cord spool about the first cord spool axis and has no external hand-operated control cord input to raise and lower the window cover.

Abstract: Disclosed are apparatuses and methods for use of a mesh screen having a perimeter, an elastomeric material, and a flexible frame that surrounds elastomeric material and is attached to the mesh screen at or substantially proximate to the perimeter, wherein the flexible frame surrounds an entirety of the perimeter. In another embodiment, the flexible frame constitutes connected portions of flexible frame having elastomeric material(s) and portions of flexible frame not having elastomeric material(s). Example use may include pushing the apparatus into a window seal of a window opening to prevent macroscopic materials, such as particulates and insets, from ingress or egress into an otherwise closed system, such as the interior of an automobile.

Abstract: A consumable and disposable cartridge for laminar roller screens featuring quick installation and replacement by means of clip type means or the like, comprising a peripheral frame of an open space to be enclosed. They comprise a flexible sheet which can change between a straight lined, curved or right angled path and tubular angled casings for changing from a straight path into an angled path of the flexible sheet. Inside of it there is a rotation drum for a flexible sheet, a torsion spring causing the rotation drum to rotate so as to roll the sheet and a tubular element being of the same height as the sheet. An actuation knob regulates the spring tension, and a tubular casing delimiting the cartridge. It comprises anchoring and guiding means of the spring inside the drum.

Abstract: A climbing stick for climbing upward e.g., to a hunting tree stand, can be locked in a closed position to deter unauthorized persons from climbing on it. A vertical center pole has a plurality of foot pegs are hinged to it at predetermined locations thereon, disposed on the right and left sides of the pole. The foot pegs swing up to a vertical closed position and swing down to a horizontal open position. Left and right vertical side rails are connected by hinges or pivot pins to the ends of the foot pegs on the respective left and right sides. Mating lock fixtures on the left and right vertical side rails allow the left and right vertical side rails be locked when they are closed against one another, and prevent unauthorized access. An extruded aluminum tree hook or jaw assists in mounting the climbing stick against a tree.

Abstract: A step ladder. Two side rails and two support legs are connected to a top cap. Two locking spreader bars are connected between the support legs. The locking spreader bars hold the two side rails at a side rail angle. Ladder rungs are rigidly connected to the side rails. At least one of the ladder rungs has a bend to form a bent rung front face. The bent rung front face has a bent rung front face angle that is less than the side rail angle. To use the step ladder, the user will stand on a ladder rung and rest at least one of his legs against a bent rung front face. The increased angle of the bent rung front face will provide comfortable support for the user. In a preferred embodiment, the bent rung front face angle is vertical at 90 degrees.

Abstract: A system for stiffening a ladder is provided and includes a bracket assembly securable to the ladder and including a main body portion and an extension member coupled to the main body portion. The extension member is movable between a stowed position and a deployed position and includes a distal end defining a guide portion. A line has a first end securable to one end of the ladder and a second end securable to an opposite end of the ladder. The line is extendable through and supportable by the guide portion. The extension member is moveable from the stowed position to the deployed position to apply tension to the line such that the bracket, the line, and the ladder define a triangulated truss structure.

Abstract: An apparatus with: a handle, a bolt, a feature for attachment or storage of tools, two or more wedges, and an elastic belt that allow for hanging or storing tools and equipment on an extension ladder such that there is a maximal amount of surface contact and compression between an expanding clamp mechanism and the interior of a ladder rung. The apparatus can be configured in an almost infinite number of ways as desired by the user for length and features for attachment and it uses many off the shelf and easily obtainable components making repair and modification convenient for the user.

Abstract: The invention relates to reamers used downhole oil well operations, particularly in reaming while drilling applications.

Abstract: A mill includes a mill body defining a plurality of blades extending in a direction from a center or rotation of the mill body to a gauge surface. The blades define a cutting profile having a minimum diameter at a longitudinal endmost position. The minimum diameter is smaller than a diameter of a drop ball. The cutting profile has an intermediate diameter at most equal to the diameter of the drop ball at a longitudinal distance from the endmost position greater than the diameter of the drop ball. Shear cutters are mounted on at least one of the plurality of blades, mounted such that at least one shear cutter is mounted closer to a center of rotation of the mill body with respect to other cutters mounted to the blades. At least one insert is mounted to the at least one of the plurality of blades rotationally ahead of the shear cutters.

Abstract: A wellbore tool may be formed, at least in part, by a fiber-reinforced hard composite portion that comprises a binder, matrix particles, and reinforcing fibers, wherein the reinforcing fibers have an aspect ratio ranging from equal to a critical aspect ratio (Ac) to 15 times greater than the Ac, wherein Ac=?f/(2Tc), ?f is an ultimate tensile strength of the reinforcing fibers, and Tc is an interfacial shear bond strength between the reinforcing fiber and the binder or a yield stress of the binder, whichever is lower.

Abstract: An earth-boring drill bit includes a bit body having a powder component and a binder. The powder component includes a plurality of nanotubes disposed on a surface of at least one particle of the powder component.

Abstract: Forming a precipitation hardened composite material having reinforcing particles and precipitated intermetallic particles dispersed in the binder material may involve heat treating the hard composite material at a temperature above a solvus line for the binder material and below a melting point of the binder material and quenching the hard composite material to a temperature below the solvus line of the binder material. At least some of the precipitated intermetallic particles in the precipitation hardened composite material may have at least one dimension less than 1 micron. Such precipitated intermetallic particles may optionally be grown to larger sizes by heat treating the precipitation hardened composite material at a temperature below the solvus line of the binder material.

Abstract: A cutting element configured to mitigate spalling on a front cutting face thereof. The cutting element include a diamond table having the front cutting face defined thereon and at least one recess defined on the front cutting face of the diamond table. The at least one recess has a width within a range of 25.0 ?m to 650 ?m and a depth within a range of 25.0 ?m to 600 ?m. Methods of forming a cutting element configured to mitigate spalling on the front cutting face thereof. The methods including forming at least one recess on a front cutting face of a diamond table to have a width within a range of 25.0 ?m to 650 ?m and a depth within a range of 25.0 ?m to 600 ?m. Method of using a cutting element configured to mitigate spalling on the front cutting face thereof.

Abstract: An arrangement for feeding at least a part of a drilling machine in at least a first direction. A drilling system and a method are provided. The arrangement includes a first end portion, a second end portion, an outer cylinder, a piston and a piston rod. The piston and the piston rod are displaceably arranged in the outer cylinder such that the piston and the piston rod, the outer cylinder and the end portions delimits a first chamber and a second chamber for a pressure medium in the outer cylinder on a respective side of the piston. A valve is connected to the first chamber for reducing the pressure medium in the first chamber. The valve is arranged to be opened at an increased pressure in the second chamber.

Abstract: A drilling string stabiliser tool comprises a cylindrical body and a plurality of stabiliser blades mounted on the outer surface of the cylindrical body. The stabiliser blades have an elongated shape and a monolithic structure with an upper stabilizing part and a lower mounting part. Between each two adjacent blades there can optionally be a hydrodynamic flute for improving the flow of liquid and cuttings during drilling and tripping.

Abstract: The devices and methods for controlling flow through a multi-channel system deployed in a petroleum well are disclosed. The devices of the invention feature a manifold with a plurality of inlets operably connected to the passageways of the multi-channel system. Individual flows of the multi-phase petroleum fluid from the parallel passageways of the multi-channel system towards the inlets of the manifold are controlled by opening or closing of corresponding stopping valves installed on each inlet or group of inlets. After exiting the inlets through the stopping valves, the flows of the multi-phase fluid are consolidated and directed towards single or multiple outlets of the manifold and ultimately towards the outlet of the petroleum well. Individual opening or closing of the stopping valves has the effect of increasing or decreasing the total cross-sectional area available for producing fluid flow through the well.

Abstract: Downhole electronics assemblies including a modular carrier including a top rail and a bottom rail, the top and bottom rails each including a pair of longitudinally extending sides and the top rail providing one or more ribs that extend between the longitudinally extending sides of the top rail. A circuit board is positionable between the top and bottom rails and has a top side and a bottom side and one or more electronic components mounted on at least one of the top and bottom sides. One or more damping pads interpose the circuit board and a host downhole tool such that contact between the circuit board and the host downhole tool is prevented.

Abstract: A continuous well string injector features a frame carrying a pair of endless chain conveyors on opposite sides of a pathway. Each chain carries gripper dies for engaging the continuous well string when received in the pathway. A respective skate and cylinder block reside in the closed loop path of each chain. Each cylinder block features a plurality of blind bores having open ends facing toward the respective skate, and a respective piston is slidably disposed within each bore. Hydraulic extension and retraction ports open into the cylinder bores on opposite sides of the piston, whereby back and forth displacement of the pistons forces the skates toward and away from one another to grip and release the continuous well string. A front wall of the frame has an open horizontal gap aligned with the pathway to enable lateral entrance and exit of the continuous string to and from the pathway.

Abstract: Heat is applied in a closed multifunctional container system which dehydrates and/or decontaminates, and processes mixed materials (such as drilling mud) deposited within the container. The disclosed container is used for material collection, transport, treatment and transport to final dehydrated/decontamination destination. In the container, the material may be treated with a single step heating or dehydration process accomplished by inserting a heating element into the container designed for the heat to indirectly contact the mixed material to heat and cause water to vapor off the product and/or contaminates to be sterilized from earth. After treatment the volume of the material has had the water percentage reduced or contaminates removed and is now ready for disposal or other use where a high percentage of water or other containment(s) are undesirable.

Abstract: This invention relates to a torque control device for a downhole drilling assembly, the torque control device being adapted for connection to a drill bit. The torque control device includes an outer sleeve and an inner shaft, the outer sleeve being movable longitudinally relative to the inner shaft. The torque control device has a cylinder, a piston located within the cylinder, and a rotary valve to control the volume of the cylinder. The volume of the cylinder can be changed by way of the rotary valve whereby to adjust the weight on bit and thereby control the torque upon the drill bit.

Abstract: A downhole system includes an upper casing that is connected to a lower casing via an annular barrier that expands upon application of pressurized fluid. The lower casing may also include additional annular barriers to fasten the lower casing relative to the borehole.

Abstract: An anchoring tool for positioning a downhole tool within a wellbore conduit is described herein. The anchor tool uses replaceable blades having protrusions that are configured to align with corresponding grooves in an anchor sub receptacle that is located at a known position along the wellbore conduit. The blades of the anchor tool are configured to move radially relative to the anchor tool body until the anchor tool is aligned with a compatible anchor sub. When the anchor tool and the compatible anchor sub are aligned, the protrusions of the anchor tool blade extend into the grooves of the anchor sub receptacle and a locking mechanism within the anchor tool inhibits further radial movement of the blades. A downhole tool connected to the anchor tool can therefore be positioned at a precise location relative to the known location of an anchor sub receptacle.

Abstract: Disclosed embodiments may relate to devices or tools for diverting flow within a wellbore. For example, disclosed tool embodiments may allow for more efficiently cutting and pulling of casing from a wellbore during well abandonment operations, since diverting fluid flow as disclosed may allow for a single tool string trip to allow the flow patterns for both cutting and cleanup.

Abstract: A system and method for milling a casing in a wellbore wherein an upper milling portion of a milling system engages a track of a lower guide system of the milling system in order to orient the upper milling portion. The upper milling portion moves along a track from a first position to a second position, where the the upper milling portion is securedly affixed to the lower guide portion. A traveling guide arm is used to move the milling portion along a travel path. A piston on the traveling guide arm is disposed between first and second fluid chambers, with a throughbore in the piston forming a fluid path between the two chambers. An adjustable valve in the throughbore is controlled by a proximity sensor to alter the flow of fluid between the chambers. The sensor monitors the distance between a fixed and moving point of the milling system.

Abstract: A method for tying back a subsea well assembly to a surface platform and a tieback connector used to perform this operation. The tieback connector includes a mandrel having an axis, external threads, an upward facing lip on an external lower end portion of the mandrel, a backup ring having internal threads engaged with the external threads of the mandrel, a sleeve carried on an outside diameter of the backup ring. When the mandrel is rotated relative to the backup ring, the mandrel moves axially upward relative to the sleeve, deforming an annular seal assembly between the upward facing lip of the mandrel and the load bearing surface of the sleeve, thereby creating a seal between the apparatus and the wellhead housing.