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| Number | Title | Issue Date |
| 8176929 | Line-stopping sheath spigot assemblies and line-stopping sheath assemblies using the same A spigot for a line-stopping sheath assembly includes a flange including a flange plate and a flange barrel. The flange barrel includes a wall extending from the flange plate, with an end of the wall of the flange barrel opposing the flange plate having a projection... | 05/15/2012 |
| 8091573 | Pipeline intervention An apparatus and method for accessing a sub sea pipeline. The apparatus comprises a entry guide (2) having a channel extending there-through for guiding a pipeline intervention device and means for attaching the entry guide to the external wall of a section o... | 01/10/2012 |
| 8047219 | Block and bleed plugging tool employing seals on a pipeline exterior The present invention is a method of plugging a pipeline having an exterior surface including the steps of affixing to the exterior of the pipeline first and second spaced apart collars, welding each collar to the pipeline so that an operating space is provided betw... | 11/01/2011 |
| 8028711 | Hot tap clamp A hot tap clamp. The clamp includes a first clamp part, a second clamp part, a fastener for stable fastening of the clamp parts around a section of a pipeline provided with a hot tap coupling, a pipe socket fixedly integrated with one of the clamp parts at an inner ... | 10/04/2011 |
| 7665481 | Pressurized fluid line servicing tool A pressurized fluid line servicing tool assembly consists of a tool insertion adaptor, a cap removal tool and a plug setting tool. The tool insertion adaptor connects to a pipe of a pressurized fluid line and enables tools to be inserted and removed without releasin... | 02/23/2010 |
| 7437815 | Systems adapted to cooperate with an aperture forming tool and methods Systems and methods are provided wherein a tube insert is at least partially disposed within the end portion of a tube. An alignment fixture can be used to assist in forming an aperture through the wall of the tube at a predetermined location that is aligned with at... | 10/21/2008 |
| 7350533 | Method for accessing a pipe and apparatus therefor Method and apparatus for accessing the inside of a pipe includes a valve which connects to the pipe, a riser pipe, and an operating rod for selectively opening and closing the valve. The apparatus further includes a 5.25 inch cylindrical housing having a removable c... | 04/01/2008 |
| 7338089 | Pipe interruption fitting A pipe interruption fitting having a flange is removable after pipe maintenance work has been completed. The fitting includes an upper reinforcing plate, an inner surface of which has a curvature corresponding to an outer surface of the pipe, and a vertical pipe wel... | 03/04/2008 |
| 7325559 | Method for connecting a branch pipe to a main pipeline and underground network for distributing fluid Method in which the following operations are carried out: a) digging an exploration hole (8) in order to open up a main pipeline (2) which has an upper edge (10) which extends at an upper level (12) which is substantially con... | 02/05/2008 |
| 7311114 | Cross-line plugging system A method of providing access to the interior of a cross-line that intersects with a primary pipeline of equal or greater diameter, including the steps of attaching a branch fitting to the exterior of the primary pipeline on the side thereof opposite the point of int... | 12/25/2007 |
| 7292156 | Remote tapping method and system for internally tapping a conduit Disclosed is a method, system and apparatus for use in remotely and internally tapping a conduit. The method is performed, at least partially, by an automatic mechanism or robot configured to effectively perform the tasks and various steps of the method. The method ... | 11/06/2007 |
| 7281543 | Apparatus, systems and methods for plugging a high temperature pipe A method of plugging a pipeline includes the steps of welding onto the exterior of the pipeline (10) first (12) and second (14) spaced apart collars, each having a sealing face (26,26A) in a plane perpendicular the pipeline (10) ax... | 10/16/2007 |
| 7270139 | Cam-assisted, wedge actuated, metal-to-metal seal, block and bleed plugging tool A system and method of plugging a pipe including sealably securing onto the exterior of a pipe first and second spaced apart collars, each collar having a sealing face in a plane perpendicular the pipe axis, cutting and removing a length of pipe from between the col... | 09/18/2007 |
| 7174798 | Alignment device for positioning liquid flow tube A combined liquid flow tube alignment and liquid sensing system includes flow tube mounting and alignment hardware including a clip for fastening the hardware to a substrate; and a sensor for sensing integrated with the liquid flow tube mounting and alignment hardwa... | 02/13/2007 |
| 7021325 | Valve assembly and method for hot tapping a line A valve assembly includes a valve body with an access opening in which a linearly installed but pivotally operated gate-like valve-stopping mechanism is disposed, said mechanism including a support structure or cartridge with a pivotally moveable valve-stopping elem... | 04/04/2006 |
| 6889703 | Deployment of equipment into fluid containers and conduits Apparatus for deploying equipment in a fluid container or fluid conduit comprises a fluid housing having an outlet aperture, the fluid housing being adapted to be secured to the container or conduit such that the outlet aperture is in fluid communication with an ape... | 05/10/2005 |
| 6811356 | Cable and method for laying in plastic tubes A cable for laying in plastic tubes for transporting gas or water is described that comprises a cable core assembly and a plastic sheath surrounding the cable core assembly, in which cable the plastic used for the plastic tube and the plastic for the sheath can be w... | 11/02/2004 |
| 6745791 | Service tools for pipelines containing conduit or cable Pipeline stopping tools for use in temporarily stopping flow in a pipeline have features for centering a conduit or cable within the pipeline. The conduit or cable is guided into a recess, to avoid damage as the pipeline is squeezed closed. Alternative pipeline stop... | 06/08/2004 |
| 6691728 | Methods and systems for installing a pipeline within a pipeline A method of routing a new pipe duct into an existing pressurized gas pipeline includes the step of introducing a translating member into the pressurized gas pipeline via an entry port in a first fitting attached to the pressurized gas pipeline. The transl... | 02/17/2004 |
| 6691734 | Methods and systems for installing cable and conduit in pipelines A method, system and tools for introducing a fiber optic conduit into a pressurized gas pipeline includes the step of introducing a translating member into the pressurized gas pipeline via an entry port in a first fitting attached to the pressurized gas p... | 02/17/2004 |
| 6691727 | Device and method for protecting a subterranean pipe from damage during excavation A system and method is claimed for protecting sections of a buried utility pipe that will eventually be excavated and exposed for tapping purposes. The system includes a protective collar that is applied to the utility pipe before the utility pipe is buri... | 02/17/2004 |
| 6622747 | Cutting, valve insertion and corrosion-resistant works without fluid supply interruption A fluid supply interruption free cutting apparatus of the present invention comprises a seal-up housing and a drill. The drill has a milling cutting tool turned by a motor. The seal-up housing is of a structure suited to turn in the circumferential direct... | 09/23/2003 |
| 6536463 | Method and system for installing cable in pressurized pipelines A method of introducing a fiber optic conduit into a pressurized gas pipeline includes the step of introducing a translating member into the pressurized gas pipeline via an entry port in a first drilling nipple attached to the pressurized gas pipeline. To... | 03/25/2003 |
| 6338359 | Dual automatic insertion device A probe structure for inserting into and operating upon an object within a pipeline, especially a high pressure pipeline carrying liquid or gas, is characterized by two coaxial cylinders that can be either pneumatically or hydraulically actuated. A primar... | 01/15/2002 |
| 6105595 | Method, system, and apparatus for automatically preventing or allowing flow of a fluid An automatic fluid valve (25) includes a drive member (32) having an aperture (43) and a driven member (54). The automatic fluid valve (25) also includes at least one torque transfer member (38) for transferring torque from the drive member (37) to the dr... | 08/22/2000 |
| 6003537 | Removable penetration fittings using T-fitting and flexible pipe combination A T-fitting such as for use inside a containment box for connecting a primary pipeline to a gasoline dispenser has two flanges which connect to the pipeline and a main T-element sealed to each flange by a sealing element such as a gasket. The flanges thre... | 12/21/1999 |
| 6000419 | Connection system for a pressure cylinder A connection system for a pressure cylinder (5) comprises a check valve (4) located in the neck (15) of the pressure cylinder (5) and which is equipped with a gas removal connection opening and can be operated from the outside by means of a valve tappet d... | 12/14/1999 |
| 5988199 | Corporation stop assembly A fitting for coupling a service line to a polyethylene fluid distribution pipe such as a water main or a gas main includes a stub length of polyethylene pipe that serves as a base for attaching a corporation stop valve. The cross section of the open base... | 11/23/1999 |
| 5971001 | Fitting assembly and method for tapping into a conduit A fitting assembly and method for attaching to a fluid flow conduit in which a clamp having a threaded port is secured around the conduit. A threaded bushing is inserted into the threaded port and has an axial bore that guides and supports a tool which is... | 10/26/1999 |
| 5967168 | Method of connecting branch pipe A method of connecting a branch pipe to an existing main pipe is disclosed. The method includes the steps of: connecting and communicating a branch-pipe joint having a branching pipe portion to an existing main pipe; connecting a branch pipe to the branch... | 10/19/1999 |
| 5924436 | Connecting construction of branch pipe and connecting method thereof A connecting construction of a branch pipe is disclosed. The construction includes a branch-pipe joint fixed to an outer peripheral face of an existing pipe and attached to a passage forming member for forming, between the passage forming member and the o... | 07/20/1999 |
| 5660199 | Method and valve for hot tapping a line A method of hot tapping a pipeline includes the step of providing a valve having a valve body, a bonnet on the valve body, and means in the form of an isolating mechanism for enabling a user to seal the valve body from the bonnet for purposes of removing ... | 08/26/1997 |
| 5653253 | Safety arrangement In a double valve (4) for transportable containers (1) for distribution a liquid under pressure of a gas, a safety arrangement is adapted for preventing a person, who tries to dismount a valve while there is an over-pressure in the container, to be injure... | 08/05/1997 |
| 5163462 | Apparatus for tapping a fluid through a wall An apparatus for tapping a fluid through a wall, comprising a vacuum source (24), a tapping head (1) provided at the front thereof with a circumferential seal (3) bounding a contact area, perforating means (4) to be brought into a position extending throu... | 11/17/1992 |
| 5063957 | Method of rendering laid pipeline flexible and pipe joint suited for executing this method A method of rendering an existing pipeline flexible, by cutting out an intermediate portion of a pipe in a ring form, inserting a pipe joint into a cutout position, and connecting the pipe joint to the pipe. The pipe joint used in this method includes a p... | 11/12/1991 |
| 4978255 | Tapping fluid supply pipes A fluid supply pipe (1) is drilled and tapped using a saddle (2) adhered to its surface, the drilling and tapping tools being attached to the saddle. The saddle (2) comprises a sole plate (3) snugly fitting on the pipe, and an upstanding collar (4) with a... | 12/18/1990 |
| 4779636 | Installing reservoir taps This process permits an inlet/outlet to be established in a liquid filled tank using an underwater diver without the necessity of draining or otherwise putting the tank out of service. The diver enters the tank at the top and places a dry pot against abou... | 10/25/1988 |
| 4606367 | Apparatus and method for relieving pressure within a high pressure tank An apparatus and associated method for relieving the pressure within a high pressure tank having an opening plugged by a broken safety valve of a special type utilizes a mechanism acting between the annular flange of the tank normally provided for the sec... | 08/19/1986 |
| 4497332 | Apparatus for servicing gas lines 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 w... | 02/05/1985 |
| 4411459 | Branch fitting for providing access to the interior of a pipe A branch fitting for providing access to the interior of a pipe, the fitting having first and second body portions each having a semi-cylindrical surface adapted to sealably engage the pipe, the body portions being secured together and to the pipe in a pr... | 10/25/1983 |
