Abstract: A transmission mechanism of handle lock set used for driving a latch to perform extension/retraction action includes a driving plate and a transmission plate. The driving plate includes a supporting portion having a transmission surface with an arc surface and a blocking surface with a flat surface. The driving plate is rotated to make the supporting portion swinging between a first position and a second position. The transmission plate further includes a protrusion having a contact surface. The transmission surface contacts the contact surface and pushes the protrusion to prevent the driving plate from being unavailable due to transmission dead spot occurrence when the supporting portion locates at the first position. The blocking surface contacts the contact surface of the protrusion to prevent the driving plate from over rotation for avoiding unavailable return when the supporting portion of the driving plate locates at the second position.

Abstract: An interconnected lock has adjustable offset spacing between latchbolt and deadbolt lock mechanisms, and a sliding pusher mechanism therebetween. The pusher mechanism is operable upon operation of an interior actuator to bear against the deadbolt lock mechanism and move the deadbolt along the second axis from the latched to the unlatched position at the same time that the operation of the interior actuator moves the latchbolt along the first axis from the latched to the unlatched position. The pusher mechanism includes an arm that bears against the deadbolt lock mechanism and may be retracted and extended between a first length and a second, longer length when changing offset spacing between the deadbolt and latchbolt. The arm is extendable from the first length to the second length without adding or removing any components thereof.

Abstract: A female locking post for the free end of a folding closure section, with an inner side for connecting the post to the free end, and an outer side opposite the inner side. Two opposed connecting walls connect the inner and outer sides together. An interior wall, spaced from both the inner and outer sides, extends between the connecting walls. A post opening, preferably extending the length of the post, is provided in the outer side between the connecting walls providing access to the interior wall. An operator with a lock bolt is movably mounted on the interior wall, the operator movable along the interior wall between an unlocked position where the lock bolt is within the post and a locked position where the lock bolt projects from an end of the post. A folding closure incorporating the female post is also described.

Abstract: A railroad car door lock which eliminates the need for lubrication and which includes a bracket, a first base attached to the bracket, a second base attached to the bracket, aligned first and second apertures in the first and second bases for slidably receiving a locking pin, a replaceable first locking pin wear protector lockably insertable in and selectively removable from the first base to prevent contact between the locking pin and the inner edge of the first base which defines the first aperture, and a replaceable second locking pin wear protector lockably insertable in and selectively removable from the second base to prevent contact between the locking pin and the inner edge of the second base which defines the second aperture.

Abstract: A door latch includes an integral magnet. The door latch may be installed in a door panel. The door panel maybe pivotably connected to a sidewall of a structure. A magnetic coupler may be attached to the sidewall at a location complementary to the location of the magnet when the door panel is opened and the door latch abuts the sidewall. With the door panel opened and the latch abutting the sidewall, the magnetic field between the magnet and magnetic coupler maintain the door in the open position.

Abstract: A panel lock is provided to lock a movable panel to a relatively stationary base.

Abstract: There is disclosed a cam rise hinge (10) which includes a mounting flange assembly (12) pivotally coupled to a strap assembly (15). The mounting flange assembly includes a metal mounting plate (16) and a metal lower hinge flange (18). The lower hinge flange includes a cam recess (19) configured to receive cam (20) and cam follower (22). The lower hinge flange also includes a tension rod (25) having an upper end with a hex pin (38). The strap assembly includes a strap (41) extending from a cylinder portion (42). The cylinder portion includes a coupling end (45) with a vertically extending hexagonal channel (46) therethrough configured to receive snugly the hex pin of the tension rod. The cylinder portion also includes a threaded set screw passage (49) and set screw (51) oriented at the backside of the cylinder portion and extending to the hexagonal channel.

Abstract: The invention relates to a closure element (1) in the form of a window or a door. The invention also relates to a joint axis mechanism (9) for such a closure element.anismThe closure element (1) has a liquid crystal film (5) which is connected to cables (26) that are connected to other cables (22) via sliding contacts of an electrical connecting unit (16).

Abstract: A counterbalance assembly for use with an overhead door assembly of a trailer, for example, includes a first counterbalance mechanism having a first adjustment mechanism for adjusting a tension force of the first counterbalance mechanism and a second counterbalance mechanism having a second adjustment mechanism for adjusting a tension force of the second counterbalance mechanism. The first and second counterbalance mechanisms are spaced-apart from each other.

Abstract: The invention relates to an adjusting device for moveably mounting a furniture part onto a furniture body, comprising an adjusting arm lever. A first lever of the adjusting arm lever can be moved with respect to a second lever of the adjusting arm lever from a mounted position into an operating position. The first lever can be locked in the locked position with respect to the second lever by means of an automatic locking device.

Abstract: A hinge for the controlled rotatable movement of at least one closing element, such as a door, a shutter or the like, anchorable to a stationary support structure, such as a wall, a floor, a frame or the like. The hinge includes: a hinge body and a pivot reciprocally coupled to rotate around a first axis (X); a working chamber defining a second axis (Y) substantially perpendicular to the first axis (X); a plunger element sliding along the second axis (Y) between a position proximal to the rear wall of the working chamber and a distal position thereto.

Abstract: A door opening and closing apparatus for a vehicle includes a drive member adapted to open and close a vehicle door opening and closing a door opening formed at a vehicle body. The drive member includes a flat motor including a rotating shaft, an output shaft including an axis line that is parallel with an axis line of the rotating shaft, a first gear and a second gear which are respectively connected to the rotating shaft and the output shaft to be integrally rotatable, the first gear and the second gear meshing with each other to decelerate rotation of the rotating shaft and then transmit the rotation to the output shaft, and an output member fixedly attached to the output shaft to rotate integrally with the output shaft and being adapted to be connected to the vehicle door.

Abstract: A method for ascertaining a closing state of a house door or of a house window, having the following method steps: acquisition of a rate of rotation of the house door or of the house window using a first acquisition device, and calculation of an opening angle of the house door or of the house window on the basis of the acquired rate of rotation, and ascertaining whether the calculated opening angle falls below a prespecified angular threshold value; acquisition of a rate of vibration of the house door or of the house window using a second acquisition device, and ascertaining whether the acquired rate of vibration exceeds a prespecified rate of vibration threshold value within a prespecified first time span; and ascertaining whether the acquired rate of rotation exceeds a prespecified rate of rotation threshold value within a prespecified second time span since the exceeding of the vibration rate threshold value.

Abstract: The present invention is a security display case comprising an enclosure defining a safe portion, a display housing with a lift platform and a closing member, the display housing moveable into and out of the safe portion, a lift mechanism disposed in the safe portion drivingly connected to the lift platform, the lift mechanism controlled by a first drive motor, a locking mechanism mounted atop the closure member comprising at least one latch finger adapted to extend into and retract out of the enclosure, the locking mechanism controlled by a second drive motor, and a control system controlling the first and second drive motors, the control system further comprising a lower limit switch, an upper limit switch, and a trip switch.

Abstract: A modular safe system that can include a door unit and a pair of modular cap extension units that can be coupled on opposing sides of the door unit. The modular safe system can further include a corner-extension unit and a straight extension unit.

Abstract: A glass unit including a spacer, a front glass pane attached to a front side of the spacer, a back glass pane attached to a back side of the spacer, and a pressure equalization conduit defined by and within the spacer, wherein the pressure equalization conduit has a first end and a second end, wherein the pressure equalization conduit contains a desiccant and is in fluid communication with an exterior of the glass unit at a first end port adjacent to the first end and with an interior space of the glass unit at a second end port adjacent to the second end. The glass unit may further include one or more intermediate layers contained within the interior space and one or more floating suspension systems for supporting the intermediate layers.

Abstract: A swing door is provided that includes a frame, a door leaf with a door leaf edge, and an impact protection device. The impact protection device has a push rod, a lever, and first and second biasing arrangements. The impact protection device is mounted on an end face of the door leaf and is configured to pivot in an opening direction of the swing door and in a direction opposite to the opening direction. The lever is arranged in a gap between the front side and the frame as the swing door is closed. The lever has an outer lever arm protruding from the front side to protect the door leaf edge from an impact as said swing door is opened.

Abstract: This invention relates to an apparatus and to a method designed to prevent hand and finger injuries resulting from inadvertent door closures. The apparatus for use with an existing door and door surround includes a door latching mechanism mountable to the door having a reversibly extendable bolt actuated by a turning member, a striker member mountable to the door surround wherein a portion of the striker member projects beyond the door surround, and when the bolt is extended, complete door closure is impeded by the projecting portion of the striker member with a gap width created between the leading edge of the door and the door surround sufficient to protect human hands and fingers from being crushed, injured, or amputated. When the bolt is intentionally retracted complete door closure is permitted. The apparatus is designed to be interchangeable with standard sized door knobs, latching mechanisms, lock assemblies, and striker plates.

Abstract: A multi-stage sunshade device includes two fixed frames, two first operable frames, two second operable frames, multiple first operable blades, a first lined module, a second linked module, and multiple second operable blades. The two fixed frames, two first operable frames, and two second operable frames cooperatively define a main window plane, a first window plane, and a second window plane. The first operable blades and the second operable blades selectively cover the first and the second window planes via the two first and two second linked modules. Two first operable frames and two second operable frames each having two ends, one end of each is coupled to one another, while the other end of each is coupled to the guiding rails on the two fixed frames, so that the two first and two second operable frames can be proximate to or distal from one another.

Abstract: A motorized wand system is presented for connecting to conventional horizontal and vertical blinds. The motorized wand system includes a housing that houses a motor, a gear box and a motor controller. The wand is twistably connected to the housing. An extender is removably connected to the lower end of the wand to extend the length thereof. The motorized wand system is connected to a conventional horizontal blind by a hook member connected to the tilt knob of the blind and adhering a mounting flange to the head rail of the blind. The motorized wand system is connected to a conventional vertical blind by a mounting member connected to a clip and tilt knob of the vertical blind and a bellows that connects the mounting member and upper end of the motorized wand system. The motorized wand system is controlled individually, or in groups, by twisting, or by a remote.

Abstract: Disclosed is a safety device of a blind cord. The safety device is configured to allow a blind cord to perform a normal function only when the blind cord that is used to control a position of a blind, such as the vertical or horizontal position of the blind, or an angle of the blind, is attached to a wall, whereby it is possible to prevent a safety accident, in particular, to prevent a baby or young child from being caught in the blind cord. The safety device allows a normal function of the blind cord only when a lower portion of the blind cord is locked to a wall via the housing, thereby preventing the blind cord from undesirably moving. Therefore, it is possible to prevent a safety accident, in particular, to prevent a baby or young child from being caught in the blind cord that undesirably moves.

Abstract: A window shade storage and deployment system includes a recess formed in a ceiling and an access panel. The recess houses a window shade movable between a retracted position and an extended position. The access panel is removably attached to a surface of the recess such that a visible surface of the access panel occupies substantially the same plane as a visible surface of the ceiling surrounding the recess. A gap is provided between an edge of the access panel and the ceiling. The gap enables the window shade to extend through the gap from the recess to the area below the visible surface of the ceiling when the window shade is in the extended position. The visible surface of the access panel and the visible surface of the ceiling include the same or a similar material such that the visible surface of the access panel and the visible surface of the ceiling are visibly substantially identical.

Abstract: The present disclosure relates to a ladder-mountable storage device for storing and retractably deploying a flag. The flag can be displayed on the end of a ladder to warn onlookers. If used on the end of a ladder extending from a vehicle, the flag warns drivers to keep a safe distance, for example. The ladder-mountable storage device can also be attached to the top of ladders placed alongside buildings and other structures.

Abstract: An apparatus is for a user, and is for a trestle ladder. The trestle ladder has opposed trestle-ladder sides. Each of the opposed trestle-ladder sides includes trestle-ladder steps extending vertically along the opposed trestle-ladder sides. In accordance with an embodiment, the apparatus includes a combination of a user-support platform and a platform-connection assembly. The user-support platform is configured to support the user of the trestle ladder. The platform-connection assembly extends from the user-support platform. The platform-connection assembly is configured to connect to the trestle-ladder steps located on the opposed trestle-ladder sides of the trestle ladder.

Abstract: A rotating control device (RCD) can include an automatic RCD oiling system for providing lubricating oil to the RCD and preventing wellbore fluid under wellbore pressure from entering the RCD. The automatic RCD oiling system can include an oil pressure intensifier, a pump, and a pump flow controller. The oil pressure intensifier can include a piston assembly for maintaining a pressure differential between pressure from the lubricating oil on a rod side of the piston assembly and an annulus pressure corresponding to a wellbore pressure on the piston side of the piston assembly. The pump can pump lubricating oil from tank into passages to a bearing assembly of the RCD and a pump flow controller that controllably directs lubricating oil to the piston assembly and a return passage to the tank or the pump.

Abstract: An oscillating mud motor having a valve section and a piston section positioned within a hollow cylindrical housing wherein the valve section comprises a timing cycle valve and a spool valve which hydraulically controls rotational movement of a piston on a central shaft in the piston section for linear reciprocation within the housing.

Abstract: An example embodiment of a pipe-in-pipe electric motor assembly includes a drilling string that includes an inner pipe, an outer pipe, and an electric motor. The electric motor is provided with power supplied by the inner pipe and the outer pipe acting at least as conductors. A latching mechanism connects the drilling string and an electric motor output shaft. The electric motor output shaft is driven by the electric motor. The latching mechanism prevents the electric motor output shaft from rotating slower than the drilling string and associated methods.

Abstract: A drilling assembly comprises a bit body having a central axis and a blade extending radially outward from the bit body. The blade is defined by a leading edge and a trailing edge. A gauge surface extends from the leading edge to a surface break and may be disposed at a gauge diameter from the central axis. A recessed surface extends from the surface break to the trailing edge. The recessed surface may be configured to avoid contact between the trailing edge and the wellbore wall.

Abstract: A system includes an excavation assembly, which in turn includes a supporting body having a perimetric edge defining a closed path. A distribution apparatus protrudes transversally relative to the perimetric edge and is movable in a guided manner on the supporting body. The distribution apparatus transversally distributes a quantity of hardenable or solidifiable material towards the outside of the perimetric edge, so as to be able to lay a plurality of axially superimposed annular layers(s) of the hardenable or solidifiable material defining a tubular structure (T) around the excavation assembly. A motor device moves the distribution apparatus on the supporting body.

Abstract: An apparatus and method for drilling deeper and wider well bores is provided. The apparatus includes a motorized drill head for cutting and shredding ground material; a separate excavation line; a separate fluid delivery line; a separate close loop engine cooling line; and a casing system. Excavation line includes repetitive stationary segments of the main pipe with periodical segments of an in-line excavation pump. The close loop cooling line includes a heat exchanger in the motorized drill head and in the in-line excavation pump and one on the ground surface in the binary unit where fluid is cooled and in process electricity produced. The diameter of the excavation line and rate of flow of mud and cuttings through it and the diameter of the fluid delivery line and rate of fluid flow through it are in balance requiring only limited fluid column at the bottom of the well bore.

Abstract: A downhole cutting tool includes a tool body, a plurality of blades extending a height from the tool body to an outermost surface, and a plurality of cutting elements on at least one of the plurality of blades, each cutting element having a longitudinal axis oriented substantially radially outward from the outermost surface of the blade, and at least two adjacent cutting elements of the plurality of cutting elements having different axial lengths.

Abstract: Methods of repairing earth-boring tools may involve providing wear-resistant material over a temporary displacement member to repair a cutting element pocket in a body and a depth-of-cut control feature using the wear-resistant material. In some embodiments, the wear-resistant material may comprise a particle-matrix composite material. For example, a hardfacing material may be built up over a temporary displacement member to form or repair a cutting element pocket and provide a depth-of-cut control feature. Earth-boring tools may include a depth-of-cut control feature comprising a wear-resistant material. The depth-of-cut control feature may be configured to limit a depth-of-cut of a cutting element secured within a cutting element pocket partially defined by at least one surface of the depth-of-cut control feature. Intermediate structures formed during fabrication of earth-boring tools may include a depth-of-cut control feature extending over a temporary displacement member.

Abstract: Methods for joining an ultra-hard body, such as a thermally stable polycrystalline diamond (TSP) body, to a substrate and mitigating the formation of high stress concentration regions between the ultra-hard body and the substrate. One method includes covering at least a portion of the ultra-hard body with an intermediate layer, placing the ultra-hard body and the intermediate layer in a mold, filling a remaining portion of mold with a substrate material including a matrix material and a binder material such that the intermediate layer is disposed between the ultra-hard body and the substrate material, and heating the mold to an infiltration temperature configured to melt the binder material and form the substrate.

Abstract: The present invention relates to a system to transport petroleum fluids using a riser, capable of operating with aggressive fluids, in regions of irregular sub-sea terrain, yet using low-complexity and low-cost components and connections. The hybrid reverse transfer system, comprises: a first, top, rigid riser section, a second, bottom, flexible riser section, connected to a bottom end of the rigid riser section, and a series of support buoys connected to the rigid riser section, wherein the lower end of the bottom, flexible, riser section connects to a bottom connector on the seabed.

Abstract: Apparatus and method for supporting a riser are disclosed. The apparatus includes an anchoring element for anchoring a riser to a fixed structure, and a supporting portion configured to support a section of flexible pipe, the supporting portion having a bearing surface for the section of flexible pipe to bear against to thereby restrain the flexible pipe from upward movement.

Abstract: This invention relates to a cable protecting device (5) for protecting cables (7) extending over a collar (2) on a pipeline (1), said collar extending around the circumference of the pipe and extending a known length outside said pipeline circumference, the collar having a first and second end surface, the cable protecting device (5) having a length in the direction of the pipeline being longer than the collar (2), and comprising a first recess along the inner surface for enclosing the cable (7) to be protected and a second recess in said inner surface for containing at least a part of the collar (2), the ends of said device at least partially covering the corresponding parts of the collar ends. The length of the second recess corresponds essentially to the length of the collar, each end of said second recess being provided with engaging means (4) adapted to engage with the corresponding end surface of the collar, thus fixing the protecting device (5) to the collar.

Abstract: Systems including wellbore tubing having an anchor assembly, an upper control line connector coupled to the anchor assembly, a first housing, and a first connector. The first connector provides a first angular mating face that faces tangentially with respect to the first housing, an upper control line operatively coupled to the first housing, and first communication media that extend through the first housing to the first angular mating face. A completion assembly within a wellbore has a completion receptacle to receive the anchor assembly, a lower control line connector coupled to the completion receptacle and a second housing and a second connector. The second connector provides a second angular mating face that faces tangentially with respect to the second housing, and a lower control line operatively coupled to the second housing and one or more second communication media that extend through the second housing to the second angular mating face.

Abstract: A stabilizer for passing through a restriction includes a tubular body having a bore therethrough; a rigid blade disposed on the tubular body; and a deformable blade disposed on the tubular body, wherein the deformable blade includes a geometric profile configured to preferentially bend the deformable blade in one direction when the deformable blade encounters the restriction, and wherein the deformable blade has a height greater than a height of the rigid blade. In one example, the deformable blade is offset from a radial axis.

Abstract: A method for assembling a marine drilling riser includes assembling a predetermined number of sections of the marine drilling riser and extending them into a body of water from a drilling platform. The assembling including affixing a selected number of external line guides to the riser at selected longitudinal positions. The line guides are initially closed to be substantially at most equal a diameter of buoyancy devices on the riser. The line guides are subsequently opened to extend beyond the buoyancy device diameter. A predetermined length of fluid external line is moved to adjacent the assembled riser and the fluid conduit is coupled to the external line guides. The external line guides are locked and assembly of the riser is completed and tension is applied thereto.

Abstract: A system for aligning an auxiliary line connection in a termination assembly of a marine riser assembly includes a terminal block secured to an outer diameter of a termination ring. The terminal block has a piston housing that extends through a sidewall of the termination ring. A ring adapter has an outer diameter sized to engage an inner diameter of the termination ring when a shoulder of the ring adapter is landed on a load shoulder of the termination ring. A moveable floating ring assembly is retained within the piston pocket of the ring adapter. A piston housed within piston housing is moveable between a retracted position where an outer end of the piston is spaced apart from the floating ring assembly, and an extended position for forming a sealed auxiliary path from the terminal block to the ring adapter.

Abstract: A riser data logging system can be installed on the riser top to provide real time information of the riser, instead of or in addition to relying on sensors installed on a tensioner. The riser recoil detection system can thus be made independent of any motion of the vessel. This logging system can feedback the riser top acceleration, velocity, position, and the wire-line tensions into a controller. By comparing the acceleration difference between the riser top and the vessel body, the controller can provide more reliable and faster detection of events occurring on a vessel, potentially detecting the condition within one second. If the acceleration exceeds a certain limit, the electrical tensioners are able to reduce the wire-line tension nearly instantaneously, providing a much more effective anti-recoil control that conventional hydro-pneumatic tensioners.

Abstract: The systems, devices, and methods described herein describe a tubular retention system arranged over a mousehole. The tubular retention system includes load bearing plates that are mutually opposed, vertically aligned, and connected to an eternal support structure via upper and lower links that, together, form a parallelogram shape movable to engage tubulars of varying diameters. The load bearing plates are pulled down by a biasing system to engage the tubular and synchronized by a lifting ring connecting the load bearing plates together. Mutually opposing deflector plates are connected to the load bearing plates and move in response to the downward movement of the load bearing plates, providing a centering force against the tubular to assure proper retention once the load bearing links engage the tubular. An upward force enables the load bearing plates to return upward and outward to release the tubular.

Abstract: The systems, devices, and methods described herein relate to a modular racker system for a drilling rig. The modular racker includes transportable modules including a lower track module comprising a drilling rig floor that includes a lower track arranged and configured to accommodate a lower carriage. The lower track is permanently fixed to the drilling rig floor so as to form a part of the drilling rig floor and is transportable as part of the drilling rig floor. An upper track module comprises a fingerboard and an upper track arranged and configured to accommodate an upper carriage moveable along the upper track. The upper track is permanently fixed to the fingerboard and is transportable in a connected configuration. The lower and upper track modules are attachable to a racker column module.

Abstract: System for handling riser pipe on an offshore vessel comprising a lifting device for lifting the pipe from a storage zone onto the deck.

Abstract: A power tong unit having a gear train in which one or more of the gears in the gear train have removable and replacement roller tooth elements, in lieu of conventional gear teeth. In one embodiment, the ring gear and pinion gears have roller tooth elements, and idler gears disposed between the ring gear and pinion gears, have a semi-circular tooth root profile to mesh with the roller element gear teeth. The ring gear of the power tong unit may also have a removable section. A means for removing the removable section from the ring gear, and moving it to a position in which a tubular can be inserted into a central opening in the ring gear, may include a hydraulic cylinder, a clamping mechanism, and a cam surface to generate rotation of the removable section once lifted out of engagement with the ring gear.

Abstract: A method and apparatus to regulate the down-hole hydrostatic pressure in a wellbore are provided which depend on regulating the resistance to the flow of wellbore returns produced by the wellbore. The resistance may be provided by the internal gas pressure in a gas/liquid separator receiving the flow of wellbore returns, where the internal gas pressure is regulated by an adjustable back pressure valve and a gas source. Alternatively or in addition, the resistance may be provided by a pump receiving the flow of wellbore returns, where the resistance of the pump is regulated by adjusting the speed of the pump.

Abstract: According to one aspect, an intelligent sensor system is adapted to monitor at least a first operating parameter of a first vessel during oil and gas exploration and production operations. The system includes a first sensor housing assembly, which includes a first sensor adapted to measure a first physical property associated with the first vessel. The monitored first operating parameter is, or is based on, the first physical property measured by the first sensor. A control unit may be in communication with the first sensor. The control unit may be adapted to be in communication with an electronic drilling recorder (EDR). According to another aspect, a system is located at a drilling rig site, and includes first and second sensor housing assemblies connected to first and second vessels, respectively. According to yet another aspect, an intelligent sensor system is adapted to monitor an operating parameter of a gas vent line.

Abstract: A method for drilling a subsea well from a rig through a subsea wellhead below the rig includes employing a single gradient or dual gradient drilling system that includes a drill string that extends from the rig into the well and surface mud pumps for pumping drilling fluid through the drill string and into a well annulus of the well. The drilling system includes a subsea rotating device for conducting the drilling fluid from the well annulus and through a solids processing unit. A subsea pump then conducts the drilling fluid from the solids processing unit to a return line back to the rig. The surface mud pump and subsea pump are staged in coordination to trap pressure and/or remove pressure in the well annulus to maintain a selected pressure gradient in the well annulus.

Abstract: A tool equalizes a packer or bridge plug before it can release the slips and sealing element of the packer or bridge plug with a reconfigurable grip tool. In one configuration the grip tool is latched only into the equalizing mechanism for the packer or bridge plug. Having equalized the pressure and while still latched to the equalization mechanism the tool is reconfigured with a force and locked into a second configuration. From that position the grip tool can latch and move the release mechanism for total release and retrieval to the surface. Release force undermines a ratchet lock for the slips to allow extension as the sealing element extends axially and radially retracts. If the slips fail to release with undermining of the ratchet lock then a set down force can be applied to re-engage the lower slip cone to push it from the lower slips for a release.

Abstract: A non-explosive, down hole, setting tool, system method includes a hydraulic fluid reservoir, a first compressible fluid for applying a first force against hydraulic fluid in contact with one side of a setting piston that is movable in the tool, and a second compressible fluid for applying a second force greater than the first force against the other side of the setting piston. Hydraulic fluid is pumped against one end of the setting piston to overcome the second force and move the setting piston. A reset valve is located in a hydraulic fluid return passageway that is connected between other end of the setting piston and the source of hydraulic fluid. The reset valve can move to selectively block the flow of the hydraulic fluid or allow hydraulic fluid to flow through the fluid return passageway, so that the setting piston can move the setting piston back to its start position.