WITH ASSEMBLY MEANS OR FEATURE

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This subclass is indented under the class definition.  Devices with auxiliary means to aid in the assembly or disassembly (other than mere conventional wrench engaging portions) or having a particular relationship of parts solely to facilitate the assembly or disassembly in extremely difficult or impossible places (e.g., inserted section between fixed ends).

SEE OR SEARCH THIS CLASS, SUBCLASS:

16+,for means to aid in the replacing of wear element.
123.3+,for packed joints with external separable clamps.
148.6+,for compound joints including separable clamps for encircling an existing jointed pipe.
391,for segmental threads to permit coupling of screw means by partial rotation.

 
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Patent Number
Title
  Date
3967456 Sealing devices Jul-6-1976
A sealing device for sealing the gap between a tubular leg or a tubular piling can and a pile passing therethrough and supporting a permanent platform at sea, the sealing device comprising a first part in the form of an annular sealing element and a second part, through which the pile can pass, in the...     
3968838 Underwater connection apparatus Jul-13-1976
An improved underwater connection apparatus is provided for selectively making fluid connection between a Christmas tree flowline and a flowline extending underwater from surface storage facilities, the storage flowline being pulled into a position of partial alignment with the Christmas tree flowline...     
3986728 Pipe coupling Oct-19-1976
A hydraulically actuated coupling for effecting a connection to a pipe member or the like which has axially spaced apart pluralities of oppositely biased gripping slips which are continuously urged into gripping engagement between the housing and the pipe. This arrangement permits the pipe coupling to...     
3986729 Connecting apparatus Oct-19-1976
There are disclosed two embodiments of an apparatus for releasably connecting with one end of a member at an underwater location, wherein the member has a seating surface which faces toward its one end and a conical locking shoulder which faces away from its one end. The apparatus comprises a body having...     
3999782 Connector apparatus Dec-28-1976
Apparatus for connecting a cylindrical first member to a second cooperating member comprising: a tubular housing adapted for connection to the second member and to coaxially receive a portion of the cylindrical first member; a gripping assembly carried by the housing and movable from a radially expanded...     
4000917 Gas-actuated emergency pilot release system Jan-4-1977
A gas-actuated release system is incorporated into a conventional ejection seat of an aircraft for freeing a pilot from his survival gear which could hinder his escape from the aircraft in a ground emergency. The system includes fail-safe features which prevent its operation when the pilot ejects from...     
4006921 Pipe coupling Feb-8-1977
Apparatus for locking together two mutually telescoping tubular members against relative axial movement, the combination comprising; annular bowl means housed within one of the tubular members and including a pair of axially and oppositely tapered annular surfaces; a plurality of gripping elements circumferentially...     
4012059 Pipe connector Mar-15-1977
A pipe connector having tubular members whose telescopically interfitting end portions are latched against separation, wherein one of the tubular members is stretchable to preload the latch means and move a shoulder thereon in an axial direction away from the latch means, and a nut is threadedly mounted...     
4022287 Percussion drill bit May-10-1977
The invention relates to a drill bit for use in percussion drilling. The drill bit has a solid bit body, has cutting members on its face and a centrally disposed rod-receiving hole in its rear portion. The hole has, in part, a conical internal surface and a cylindrical internal surface in front of said...     
4040650 Articulate conduit connector Aug-9-1977
Apparatus for joining two conduits in an articulated relationship comprising: a male member attached to one of the conduits and having a radially enlarged portion thereon; a female member attached to the other of said conduits and into which the male member may be inserted; a gripping assembly carried...     
4041718 Sealing devices Aug-16-1977
In a sealing device for sealing the gap between a tubular leg or a tubular piling can and a pile passing therethrough for supporting a permanent platform at sea, which sealing device comprises a first part in the form of an annular sealing element and a second part, through which the pile can pass, in...     
4050720 Hot tap for pipeline Sep-27-1977
Two embodiments of a hot tap are disclosed. In the first embodiment, a hot tap is formed around a pipeline. It includes an elongate sleeve divided into two semi-cylindrical portions. The two portions preferably bolt together. They divide along two lengthwise edges. In the lowermost half, stationary semicircular...     
4057267 Fluid controlled pipe connectors Nov-8-1977
Pipe connectors particularly useful in securing sections of an underwater marine riser together, including a pin received in a box which are secured to one another by a plurality of lock dogs mounted in the box and movable radially inwardly against a portion of the pin by fluid actuated pistons to force...     
4073157 Offshore method Feb-14-1978
A method of depositing pipe on the seabed which includes providing a vessel of a length greater than the pipe, which vessel has a main winch on one end and an auxiliary winch on the other end, anchoring a cable from the main winch to the seabed, drawing the cable horizontally of the vessel utilizing...     
4076278 Laterally engageable flowline connector device Feb-28-1978
A flowline connector device for subsea well operations in which a connector means on the end of the flowline is moved laterally into position for connection to a fixed connector means on a subsea station. The connector means on the subsea station includes an axially movable mandrel located within a chamber...     
4087119 Fluid pressure operated duct coupling May-2-1978
A device for connecting successive duct sections, especially between a sea-bed petroleum storage tank and a surface platform, comprising a flexible tubular joint secured at both ends to two cylindrical coupling units slidably mounted respectively within two duct sections to be coupled together, remotely...     
4089548 Hydraulic releasing tool with plug May-16-1978
The invention is an elongated tool for detachably connecting a sand screen and liner assembly to a tubing string. The tool comprises a releasing housing sleeve, a hookup nipple section which partly telescopes within the releasing housing sleeve with the telescoped end closed by a removable hookup nipple...     
4109940 Coupling apparatus Aug-29-1978
For use in connecting first and second pipes, an apparatus which incorporates an external sleeve adapted to be abutted against a flange and positioned about a first pipe and enclosing oppositely facing sets of tapered slips. The slips incorporate serrations to enable them to grip the first pipe. An encircling...     
4114928 High force connecting mechanism Sep-19-1978
An inner conduit is received in an outer conduit in overlapping relationship. A locking member is received in the outer conduit for lateral shifting into locking engagement with the inner conduit. There are two spaced apart abutment surfaces on the outer conduit, and a toggle member is received in the...     
4138144 Wellhead sealing assembly Feb-6-1979
A sealing assembly for sealing the annulus between a wellhead and a casing hanger in which the assembly includes a recess for receiving a sealing element in which the recess includes a tapered surface and a tapered seat for coacting with a seal for setting the seal with a small setting force. A resilient...     
4139221 Ball and socket joint Feb-13-1979
A ball and socket joint comprising a member having forward facing and rear facing spherical surface portions, a collar engaged about the member and having internal surface portions mating with the spherical surface portions of the member, a socket into which is received the previously formed assembly...     
4142740 Quick disconnect coupler Mar-6-1979
A quick disconnect coupler in which a plurality of jaw clamping units are supported around the periphery of a pipe section for clamping the flange of a second pipe section in engagement with the first pipe section. Each hydraulic unit includes a support member secured to the outer periphery of the pipe...     
4146082 Vacuum chucks Mar-27-1979
A casting head and clamp arrangement for vacuum aspiration casting of metal rods in glass tubes is provided having a casting head with a generally vertical vacuum passage, a removable vacuum chuck in the lower end of said vacuum passage adapted to receive and hold the end of a glass tube, said chuck...     
4150477 Pre-loading joint flanges Apr-24-1979
A method for use in connecting flanges of a tubular joint is disclosed. A uniform pressure is applied to the flanges of the joint up to a desired preselected, measurable compression after which the nuts and bolts used to secure the flanges together are made up hand-tight. The preselected compression...     
4153278 Hydraulically operated misalignment connector May-8-1979
A misalignment connector for large pipelines, conductor pipes or the like, includes an internal, metal seal ring having an external spherical periphery which is axially and circumferentially loaded between opposed internal spherical surfaces of connector structures which are operable by hydraulic piston...     
4153280 Pipe couplings May-8-1979
A pipe coupling comprising a sleeve which is fitted over the adjacent ends of the pipe sections. The sleeve has sealing means for sealing the sleeve against the pipe and gripping means for gripping the pipe. The sealing means comprises an annular groove which accommodates an annular tire the interior...     
4157196 Hydraulic coupling device Jun-5-1979
A hydraulic coupling device for drawing and connecting two pipe flanges together, comprising a pair of clamps one of which is adapted for bolting the coupling device to one of the pipe flanges, and the other of which is movable towards and away from the first clamp by actuation of a hydraulic motor....     
4165891 Breech block connector Aug-28-1979
A breech block connector for use in securing wash pipe sections together comprising sleeve means, pin means, box assembly means and locking means.
4169507 Underwater well apparatus Oct-2-1979
There is disclosed a riser pipe having telescoping sections which are held in retracted position by a part which is adapted to sever upon application of a predetermined tensile load, and a fluid-actuated connector at its lower end which is adapted to be released from connection with a blowout preventer...     
4175778 Releasing tool Nov-27-1979
A releasing tool for use in gravel packing operations comprising case means for releasably attaching the releasing tool to a tubing string, releasing block means retained within the case means for releasably attaching the releasing tool to the hook-up nipple of a gravel pack screen assembly and releasing...     
4195865 Apparatus for connecting tubular members Apr-1-1980
Apparatus for connecting tubular members, particularly subsea pipeline sections, the apparatus including, in various combinations, a slip joint, which, following adjustment, can be sealed and fixed against further relative axial movement, a first boltless connection apparatus employing a force imparting...     
4200312 Subsea flowline connector Apr-29-1980
A connector for subsea flowlines is disclosed having a metal-to-metal seal affording minimum flexure of the flowline. Each end of the flowline to be connected is provided with a mandrel. One mandrel, designated the flowline mandrel, is provided with a seating surface and an external locking surface....     
4222590 Equally tensioned coupling apparatus Sep-16-1980
The present invention discloses method and apparatus for connecting together two members having mating surfaces by means of a plurality of fasteners such that equal compression forces are exerted on the members along force lines normal to a common plane. To accomplish the foregoing objectives, a plurality...     
4222591 Mechanism for clamping plates Sep-16-1980
Mechanism for securing the end plates, or flanges, of two in-line pipe sections is disclosed. A clamp member, having two jaws which remain fixed during clamping, is pivotally mounted on a standard secured to one of the pipes. A rotary locking member has an arcuate wedge segment and an abutment surface....     
4222592 Toggle mechanism connector Sep-16-1980
An over-the-center toggle mechanism for actuating locking dogs for connecting and disconnecting two underwater members. The first member includes a locking notch and the second member slideably carries locking dogs for transverse movement for engagement and disengagement with the locking notch. A toggle...     
4226447 Swivel apparatus Oct-7-1980
Swivel apparatus suspended for handling pipe joints to be added to or taken from a drill string including powered apparatus connected to a cable for raising and lowering the swivel apparatus. The swivel apparatus may comprise an upper stationary section and a lower rotatable tubular section adapted to...     
4227721 Variable size coupling Oct-14-1980
Apparatus for forming a tight seal between a coupling and a tube of variable sizes. A cylindrical housing defining an opening therein is provided such that a plurality of jaws having gripping teeth and gear teeth are mounted within the housing by being rotatably secured on a pin. A sleeve having rack...     
4232889 Recockable well hanger Nov-11-1980
A well pipe hanger assembly for suspending an inner pipe from an outer pipe. A hanger body with an annular recess in its outer peripheral surface in which a resiliently expandable and contractible locking ring is positioned in the recess between two stop shoulders for engagement with a matching profile...     
4258792 Hydraulic tubing tensioner Mar-31-1981
An apparatus or tool for applying tension to a tubing string. The tool comprises a housing and a sleeve within the housing. One end of the housing is attached to the tubing string and the opposite end of the sleeve is attached to the tubing string. Hydraulic fluid pressure acts upon a piston carried...     
4268070 Orifice flange clamp May-19-1981
An orifice flange clamp for use with a pair of butted together pipe line orifice flanges. The clamp is comprised of a pair of semi-circular bands adapted to be clamped together around the periphery of the butted together orifice flanges at their interface. The bands have cut-out sections fitting around...     
4268071 Device for coupling pipeline flanges May-19-1981
A device for connecting the flanges of two pipelines including a series of radially equally spaced gripping dogs on one of the pipelines for gripping the flange on the other of the pipelines means for moving the gripping dogs axially and radially whereby the gripping dogs axially pull the flanges toward...     
4274640 Sealing devices Jun-23-1981
A sealing device for insertion in a flanged pipe coupling comprises a split ring with an annular sealing member seated in a groove in one axially facing side of the ring. At intervals around the ring there are screws which project radially inwardly into the base of the groove to co-operate with the concealed...     
4275907 Quick connectable coupling Jun-30-1981
A quick connectable manually separable fluid conduit coupling includes a tubular male member having a tapered forward portion including a sealable bearing surface, and a radially inwardly directed shoulder adjacent the rearward part of the forward portion and adjoining a recessed circumference. A female...     
4289202 Well tubing coupling apparatus Sep-15-1981
Well tubing coupling apparatus of the tubing seal divider type adapted for remote hydraulic release control to permit a tubing string including well tools above a packer to be removed for servicing from a lower tubing string extending through a packer while temporarily plugging the lower tubing string,...     
4295665 Well casing suspension system Oct-20-1981
A pipe suspension system for suspending vertically oriented well casings within other well casings and being adapted particularly for well casing hanger systems especially adapted for underwater installation wherein casing hanger suspension systems may be installed at or near the bottom of the body of...     
4295667 Rotary pipe switch Oct-20-1981
A plurality of distributing pipes arranged in a circular pattern around a central pipe are selectively interconnected with the central pipe by a rotary pipe switch which includes a pipe elbow having a rotary joint at one end thereof connecting the elbow to the central pipe to enable rotary motion of...     
4327760 Non-interrupting gas meter exchange system May-4-1982
A method and apparatus for exchanging a gas meter without interrupting customer service. The apparatus preferably comprises a rigid frame for temporarily securing a meter to be exchanged independently of its mounting nuts, and an isolating enclosure adapted to be selectively removeably coupled about...     
4335904 Toggle mechanism connector Jun-22-1982
An over-the-center toggle mechanism for actuating locking dogs for connecting and disconnecting two underwater members. The first member includes a locking notch and the second member slideably carries locking dogs for transverse movement for engagement and disengagement with the locking notch. A toggle...     
4350371 Subsea pipe connector Sep-21-1982
An improved pipe connector especially adapted for connecting subsea pipes includes a dart-shaped assembly that can be installed and sealed in a cylindrical housing to establish a fluid-tight connection between the assembly and the housing using a minimum of diver assistance. The connector housing includes...     
4363336 Keg-tapping structure Dec-14-1982
The invention contemplates removable structure to facilitate keg-tapping, and pressurized dispensing of liquid contents of the keg. A so-called Barnes neck forms part of the keg and has a bore with an elastomeric ring seal and flange at its lower end, and a valve-and-tube subassembly is inserted through...     
4364587 Safety joint Dec-21-1982
For use in a drilling string including drill collars, a safety joint which enables the string of drill pipe to be unthreaded from the drill collars at the safety joint is disclosed. A safety joint utilizes a collet telescoped within and threaded to an outer tubular member connected in the drill string....     
4372584 Coupling for coupling tubular elements Feb-8-1983
A coupling for coupling two pipe sections in sealed relationship, the coupling comprising a male member for connection to one pipe section, a female member for connection to a second pipe section, a locking member located on the male member, the locking member comprising a locking sleeve having a plurality...     
4391779 Teflon ground glass adaptor Jul-5-1983
An adaptor for ground glass joints or couplings for laboratory glassware includes a Teflon body member having male and female coupling portions and a retracting nut threadably mounted on one end of the coupling member for engaging the end of a female joint member for retraction of the male member therefrom....     
4402532 Detachable pipe joint Sep-6-1983
A detachable pipe joint of the type having conical male and female parts has a recess in one of the parts covered by an expansible hard material, the recess being connected with a hole to which a high pressure fluid can be applied so as to expand the hard covering and provide a firm joint.
4406301 Keg-tapping structure Sep-27-1983
The invention contemplates removable structure to facilitate keg-tapping, and pressurized dispensing of liquid contents of the keg. A so-called Barnes neck forms part of the keg and has a bore with an elastomeric ring seal and flange at its lower end, and a valve-and-tube subassembly is inserted through...     
4411453 Fan or blower assembly Oct-25-1983
A fan assembly, which includes a centrifugal-type fan wheel mounted for rotation in, e.g., a scroll-like fan casing or a tubular fan casing is provided with a retractable fan inlet funnel which may be selectively positioned relative to the fan wheel between an extended position and a retracted position....     
4421164 Weight-set pack-off unit Dec-20-1983
A weight-set pack-off unit for sealing the annulus between inner and outer pipes, such as a mandrel casing hanger and a wellhead body in a well. The pack-off unit includes an expandable split ring receivable in a groove in the outer pipe to prevent upward movement of the pack-off unit relative to the...     
4424988 Frangible pipe coupling Jan-10-1984
A frangible pipe coupling includes a pair of pipes with a plurality of frangible connectors extending between the pipes and normally holding the pipes in sealed engagement with one another. An annular member surrounds one of the pipes and is slidably mounted thereon for longitudinal sliding movement...     
4429902 Remotely releasable connector Feb-7-1984
A remotely releasable connector for a pair of pipes including first and second sets of engageable threads on the first and second pipes, first and second aligned recesses on the exterior of the pipes, a latch received in both recesses to prevent relative rotation of the pipes, and a release ring supported...     
4431215 Riser connector Feb-14-1984
Two adjacent riser pipes having substantially a common axis are connected by the riser connector of this invention in the manner described below. A connector box, adapted to be attached to the end of one of the pipes, has an abutment surface and adjacent to it a channel transverse to the common axis...     
4432569 Flexible hose chuck Feb-21-1984
A chuck device for use with a flexible hose including a porting tube means for attachment at one end to a source of hydraulic fluid and having a central passage for the fluid. Attached on the other end of the porting tube is a seal cartridge means which has a hose engaging cylinder extending away from...     
4436325 Coupling Mar-13-1984
A locking slip coupling for coupling two tubular elements in sealed relationship. The coupling comprises a first tubular member having an outer end for connection to one tubular element, and having an inner end comprising an axially extending locking sleeve, the locking sleeve having an annular gripping...     
4438793 Aerial refueling boom nozzle Mar-27-1984
A nozzle for an aerial refueling boom is disclosed in which the locking latches on the nozzle housing are operated by a solenoid which allows the latches to be moved to an unlocked position by the operator in the aerial refueling tanker. The nozzle embodies an inlet fitting at its forward end which is...     
4438822 Clamp-on drill collar stabilizers Mar-27-1984
Clamp-on drill collar stabilizers, wherein a stabilizer body in sleeve form is adapted to receive a drill collar therethrough. The stabilizer sleeve is connected to the drill collar by releasable connection means, and positive release means for releasing the connection is provided. Six embodiments of...     
4453745 Lockdown mechanism for wellhead connector Jun-12-1984
A connector for subsea wellhead bodies comprises a connector body adapted to be connected to a subsea wellhead body in generally coaxial alignment therewith. Latches carried by the connector body are engageable with the wellhead body to so connect the bodies. An actuator is operatively associated with...     
4456070 Tieback connection method and apparatus Jun-26-1984
A tieback connection apparatus effects a metal-to-metal type seal between a riser run from an overhead vessel and a subsea well casing suspended from a casing hanger in a subsea wellhead member. The apparatus includes a tubular mandrel connected to and run by the riser into the wellhead, and a metal-to-metal...     
4460200 Hydraulic chuck with improved seal Jul-17-1984
A hydraulic chuck haging a piston means with an axially centered fluid passage and a tube seating means on one end thereof. Collet means are provided and are mounted on the piston means such that axial movement of the piston means operates the collet means. The chuck body is slideably mounted on the...     
4460201 Pipe connectors Jul-17-1984
A connector for connecting the abutted end portions of two pipes includes a ring having a pair of radially inwardly extending surfaces directed towards each other and each for engagement with a radially outwardly extending surface on a respective pipe end. The surfaces on the pipe ends are directed away...     
4461354 Hydraulic well cap Jul-24-1984
Apparatus and associated method for capping a blowing well, one embodiment of the apparatus including a hydraulically activated clamp for engaging the exposed well pipe stem, a hydraulically operated shut off valve having a tapered fitting and hydraulically activated pistons connecting the clamp and...     
4467962 Land irrigation system and method Aug-28-1984
A land irrigation system is illustrated in which an elongated sprinkler line continuously travels in a direction transverse to its length along the length dimension of a stationary water main and is continuously supplied with water from upstanding hydrants spaced along the length of the water main. Driven...     
4468055 Wellhead apparatus Aug-28-1984
There are disclosed two embodiments of wellhead apparatus for use in suspending concentric strings of casing of an offshore well at the ocean floor. For this purpose, an inner hanger to which the inner casing is connected is adapted to be landed within an outer hanger to which the outer casing is connected,...     
4469136 Subsea flowline connector Sep-4-1984
A connector for subsea flowlines has on each end a mandrel. One mandrel, designated the flowline mandrel, is provided with a seating surface and an external locking surface. The second mandrel, designated the connector mandrel, is provided with a seating surface for mating relationship with the seating...     
4471799 Line removable ball valve Sep-18-1984
A valve structure for an undersea pipeline including a valve cartridge received in a cage formed by a pair of thick parallel plates secured together by threaded studs. The studs entered in U-shaped rows down along the sides of the plate and in an arc near the bottom from side to side. There are no studs...     
4477104 Releasable latching apparatus Oct-16-1984
There are disclosed two embodiments of an apparatus for releasably latching the lower end of a tubing string within the bore of an upstanding well conduit by means of latching parts adapted to be received in latching position beneath a shoulder in the bore of the well conduit. The latching parts are...     
4485653 Hydraulic chuck for threaded tube Dec-4-1984
A threaded coupling chuck device for use with a male threaded tube, including a body, a shaft for rotation, a sleeve and adaptor, nose cone, seal means, port means and a valve. The body is centered about an axis and has a sleeve rotably mounted inside the body. This sleeve is driven by the shaft means...     
4489959 Underwater connector Dec-25-1984
An underwater hydraulic connector utilizing a cylindrical male portion inserted into a cavity in a female portion. The male portion consists of a telescoping inner and outer housing with a plurality of resilient seals mounted within openings in the outer housing whereby if the seals are compressed they...     
4491345 Marine conductor coupling Jan-1-1985
A marine conductor coupling is shown in use in a subsea well installation for connecting a blowout preventer stack to the subsea well head with the coupling including a one piece body of annular configuration having a mandrel receiving vertical bore aligned to a vertical through bore, a plurality of...     
4496172 Subsea wellhead connectors Jan-29-1985
There is disclosed a remotely operable, subsea wellhead connector for connecting the lower end of one wellhead member to the upper end of another wellhead member which is mounted in an upright position beneath the water surface, such connector including a tubular member adapted to be connected to the...     
4497332 Apparatus for servicing gas lines Feb-5-1985
An apparatus and method for working on a section of gas main while it is in service comprising a work chamber formable around a section of the gas main and having means for admitting a tool thereto in a manner that it can be manipulated from outside the work chamber; means for removing the tool from...     
4519633 Subsea well casing tieback connector May-28-1985
A pipe connector especially useful in tying back to a subsea wellhead with a marine riser. The connector comprises a body or sub, a collar surrounding the sub and carrying anti-rotation keys and a lock ring, and an actuator nut surrounding and threaded to the sub. The anti-rotation keys prevent rotation...     
4526406 Wellhead connector Jul-2-1985
The invention pertains to a connector for connection to a wellhead in generally coaxial alignment therewith. The connector includes a generally tubular main body and latches carried by the main body for radial extension and retraction with respect thereto to engage the wellhead and latch the connector...     
4531766 Releasable couplings for drill strings Jul-30-1985
A releasable coupling or safety sub for a drill string including an inner tubular member piloted within an outer tubular member, the inner member including expansible, segmental lock members shiftable laterally of the tubular members into locking engagement with a transverse shoulder on the outer member,...     
4548273 Torque multiplier subsea tool Oct-22-1985
A torque multiplier subsea tool for setting a seal between a casing hanger and a subsea wellhead includes a mandrel having a sun gear with axial elongate teeth. An outer barrel is disposed around the mandrel forming an annulus therebetween. A planetary gear assembly is disposed in the annulus between...     
4550935 Quick-release coupling Nov-5-1985
The invention relates to a quick-release coupling, more particularly intended for hose pipe assemblies used at sea. Said coupling is composed of two jaws which cooperate with truncated parts of the coupling members and are held together or released by the movement of a finger sliding inside bores provided...     
4569539 Pipe joint Feb-11-1986
A reclosable remote control pipe joint particularly suitable for use in fusion reactors and in other radioactive environments employs a spring to maintain sealing force between a sealing ring and a sealing face. The spring permits the pipe joint to remain intact despite mechanical disturbances of the...     
4579372 Flowline connector seal Apr-1-1986
A flangeless, disc-like seal plate is disclosed for insertion between opposing flowline hubs for sealingly connecting, blocking or rerouting fluid flow between various fluid carrying lines within said flowline hubs. For connecting flow lines, straight throughbores within the seal plate are provided with...     
4601492 Releasable coupling Jul-22-1986
A releasable coupling has opposite ends adpated to be connected into a tool string or tubing string and run downhole into a borehole. A sealing member is passed down through the tubing string and allowed to become seated within the axial passageway of the releasable coupling. Pressure is applied through...     
4603886 Snap type pipe connector Aug-5-1986
A snap type pin and box connector. A plurality of box diameters 24, 28, 32 interact with a plurality of pin diameters 36, 40, 44, 48 and 50 to produce a minimum clearance at an intermediate location 28, 44. The box load shoulder 56 is chamfered 54, as is a portion K of the split lock ring 14 adjacent...     
4606557 Subsea wellhead connector Aug-19-1986
A pipe connector especially suitable for interconnecting a marine riser to a subsea wellhead, the connector comprising an annular body that telescopes over the wellhead, and a plurality of lockdown screw assemblies extending through radial ports in the body to releasably grip and secure the connector...     
4607865 Connector, ratcheting type Aug-26-1986
A tieback connector 10 for connecting tieback conductors 14 between a platform and a casing hanger 22 in a subsea well system 20 comprising a split ring 44 on a connector body member 12 having external threads 32 capable of mating with internal threads 24 on the casing hanger 22 and capable of ratcheting...     
4612985 Seal assembly for well tools Sep-23-1986
A method and apparatus for inserting a seal stack in a seal bore defined by a well tool located downhole where ambient conditions would cause radial swelling of the seal stack. The seal stack is mounted at the surface in a confined space defined between a mandrel and a constraining sleeve shearably connected...     
4613161 Coupling device Sep-23-1986
A coupling apparatus is provided for quick coupling of a plug container or the like to a casing collar. A body of the plug container is located above the casing collar. A main seal seals between the body and the casing collar. An adjusting assembly has a variable engagement with the body. An annular...     
4615544 Subsea wellhead system Oct-7-1986
The subsea wellhead system includes a wellhead, a housing seat disposed in and connected to the wellhead, a casing hanger supported by the seat, a holddown and sealing assembly in the annulus between wellhead and hanger, a running tool attached to the hanger for lowering it into the well and initially...     
4619324 Wellhead connector locking mechanism Oct-28-1986
A wellhead connector assembly allows connection of a wellhead connector to a subsea wellhead without requiring hydraulic components to remain with the wellhead connector. The connector has latch dogs which are urged by an actuator ring into engagement with the wellhead body. Rods extend upwardly from...     
4640530 Tight connection device Feb-3-1987
The device makes it possible to connect tightly first and second parts having a flange and locking or tightening means for the said flanges. The tightening or locking force applied to the locking of tightening means is multiplied in order to increase the compression force applied to a gasket or joint....     
4643456 Locking thread saver Feb-17-1987
A locking thread saver for use in connecting a rotatable member such as a length of steel drill pipe to a power transmission utilizes an internally mounted locking plate powered by an internally carried actuator to prevent the premature disengagement of the drill pipe from the transmission when attempting...     
4651830 Marine wellhead structure Mar-24-1987
The present invention relates to an improved subsea wellhead structure which includes a conductor casing having an internal upwardly facing shoulder, and an internal groove above the shoulder, an external groove, a wellhead housing having an external downwardly facing shoulder adapted to seat on the...     
4655479 Pre-set torque limiter sub Apr-7-1987
A preset torque limiter sub having a pin member and a box member. The pin member is connected to a section of drill pipe and has a male connection at one end. The box member is connected to a second section of drill pipe. The male connection and the female connection are connected together. Whenever...     
4657283 Clamp device Apr-14-1987
A wire gripping clamp has a rubber inner tube wedged to the ends of a rigid outer tube by a set of rings, one ring at each tube end. The space between the tubes is sealed by the rings and forms a chamber, which when pressurized, compresses the inner tube wedging the rings against it. The compressed inner...     
4662654 Automated cylinder connector May-5-1987
An automated cylinder connector is disclosed, which substantially reduces the time required to connect and disconnect a gas line from a gas cylinder. In one embodiment, a threaded connector, defining a conduit for gas flow, is designed to be attached to the valve outlet of a gas cylinder. The connector...     
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