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| Number | Title | Issue Date |
| 8087119 | Pipeline pig with internal flow cavity A pig for movement within a pipeline comprising a cylindrical housing with annular seals circumferentially mounted to the housing and extending outwards for sealing engagement between the pipeline and the housing. An internal flow cavity passes through the housing, ... | 01/03/2012 |
| 8051523 | Tube cleaning implement A tube cleaning implement with elongate shaft supporting a brush in a median section and similar scrapers or wipers fitted to opposite ends of the shaft to provide for a scrape-brush-scrape cleaning action of tube interiors, and to provide a reversible implement hav... | 11/08/2011 |
| 8051524 | Multi-diameter elastic sealing module for pigs A multi-diameter elastic sealing module for pigs, which operates in pipes having diameter changes, by being sent through the inside of a flexible or rigid pipe to move or draw various fittings and remove internal incrustations from the pipe, impelled by a fluid whic... | 11/08/2011 |
| 8011053 | Resilient pipeline inspection brush A resilient inspection brush used in electrically inspecting pipelines for abnormalities is described which employs highly conductive metals, such as nickel. Since bristles [330] made from these metals cannot be secured firmly by soldering or epoxy, they are ... | 09/06/2011 |
| 8011052 | Device for cleaning multidiameter pipelines A trailing pig cleaning device is adapted to be dragged by a pig towing device. The cleaning device collects a predetermined quantity of debris. The cleaning device has a continuous outer surface portion of variable diameter urged into normal contact with the intern... | 09/06/2011 |
| 7979944 | Tubular cleaning device One or more tubular cleaning devices and methods for cleaning a tubular are provided herein. The tubular cleaning device can include an inner tubular member having an inner tubular member inner bore formed therethrough. The inner tubular member can include a stop fo... | 07/19/2011 |
| 7975342 | Device for moving a pig through a conduit, such as a pipeline A pig towing device is adapted for movement through a conduit having bends and open T intersections. The pig has a front leading cup and a rear trailing cup adapted to seal with the conduit for propelling the device through the conduit. The leading and trailing cups... | 07/12/2011 |
| 7971307 | Device for cleaning tubes The present invention provides a device for cleaning tubes, in particular the internal surfaces of tubes in heat exchange systems. The device comprises a mass (2) with an optionally provided central through-hole (10) disposed thereon, and optionally pr... | 07/05/2011 |
| 7827646 | Vortex inhibitor dispersal pig A pipeline pig—that moves by pressurized gas flow and provides for distribution of treating liquid subsisting in a lower portion of a pipeline—having a longitudinally extending nozzle located at a forward end of the pig, an array of helical-shaped louvers locate... | 11/09/2010 |
| 7752700 | Cleaning bullet A cleaning bullet for use in a pipe or track includes a compressible body. In one embodiment, a sheet draped over the body is engageable with interior walls of the pipe or track to clean small contaminants. In another embodiment, the body is formed from an absorbent... | 07/13/2010 |
| 7739767 | Pigging system A liquid transport system has a number of access points, referred to generally as nodes, connected to an endless loop of piping such that liquid flowing in the system, to move the liquid from one node to another, flows in two generally discrete paths from a source n... | 06/22/2010 |
| 7617558 | Pipeline pig A device can travel along a pipeline which has fluid flowing along the pipeline. The device is able to extract power from the fluid flow in the pipeline and to use that power to move the device along the pipeline against the fluid flow. The device is arranged in a s... | 11/17/2009 |
| 7614109 | Device for moving a pig through a conduit, such as a pipeline A pig towing device is adapted for movement through a conduit having bends and open T intersections. The pig has a front leading cup and a rear trailing cup adapted to seal with the conduit for propelling the device through the conduit. The leading and trailing cups... | 11/10/2009 |
| 7490381 | Tube scraper A tube scraper for removing deposits from the interior surface of heat exchange tubes, the scraper being fitted with a set of diverging scraper blade arms mounted on an arbor in nested relationship such that scraper blades have overlapping scraping edges. ... | 02/17/2009 |
| 7406738 | Thruster pig A thruster pig for sending through a pipe from an entrance facility to a receiving location, for servicing or monitoring, by pumping a thrusting fluid into the pipe to force the pig forward is disclosed. The thruster pig includes a body having a front end and a back... | 08/05/2008 |
| 7386908 | Structured foam pig The present invention relates to a device intended to be passed through a pipeline of variable diameter, propelled by a liquid flowing inside said pipeline. The device has an elongated cylindrical body (2) made of polymer foam, with a number of deep channels ... | 06/17/2008 |
| 7357177 | Restriction tolerant packer cup The present invention relates to a packer cup 5 having a deformable leading edge 20 which moves away from well bore or casing obstructions as the packer cup 5 is moved into a well bore. The anaxisymmetric deformable leading edge 20 can be... | 04/15/2008 |
| 7354483 | Device and method for transporting and delivering liquid chemical to inside natural gas pipeline A device for transporting and delivering chemical to interior walls of pipelines employs a pig having a tank which contains pressurized chemical therein. Operably connected to the tank is a nozzle which is equipped to deliver the chemical from the tank onto the inne... | 04/08/2008 |
| 7350578 | Diverter plugs for use in well bores and associated methods of use Zonal isolation of well bores is often desirable for performing downhole operations such as stimulation operations. In certain embodiments, diverter plugs for achieving zonal isolation in a casing string in a well bore may comprise a mandrel having a first end and a... | 04/01/2008 |
| 7347649 | Powder purge tube To supply a powder lacquer sprayer, the coating powder is pressed by a pig through the supply line and, in the process, it is fluidized from the side of the pig which is turned toward the powder. The fluidization air can be led to the powder, for example, by a centr... | 03/25/2008 |
| 7328475 | Centre line multidimensional suspension system There is described a novel apparatus for use in connection with pipe cleaning and monitoring systems. The apparatus is a suspension system adapted to fit a pipeline pig shaft, the pig being provided with a plurality of wheels. The wheels are concentrically mounted a... | 02/12/2008 |
| 7322793 | Turbine motor of a rotary atomizer A turbine, e.g., with a blade arrangement, which receives an air flow in the radial direction and which is located on a carrier surface of the turbine wheel, is used as a drive motor for a rotary atomizer. The drive channel, which contains the turbine blades and whi... | 01/29/2008 |
| 7294222 | External pipe cleaner Disclosed is a pipe cleaner apparatus that is attached to a pipe fusion machine. The pipe cleaner removes dirt, snow, mud, and other debris from the outer surface of pipe sections prior to the butt fusion process. The pipe cleaner may be a wiper through which the pi... | 11/13/2007 |
| 7279052 | Method for hydrate plug removal A method for removal of deposits such as hydrate plugs from a pipeline is provided including inserting a thruster pig connected to a return flow line into the pipeline The pig is then advanced forward into the pipeline by pumping a thrusting fluid into an annulus be... | 10/09/2007 |
| 7275702 | Valve unit for an electrostatic coating installation The main needle valve of an electrostatic atomizer has an opto-electronic sensor device with optical waveguides whose faces are opposite a reflecting element of a component moveable with the valve needle for potential-free switch position interrogations. ... | 10/02/2007 |
| 7270847 | System and method for coating tubes The present invention relates to the coating of tubes, and more particularly to a system and method for renovating the inner surface of deteriorated or pitted tubes to extend tube life and enhance performance. A method of the present invention includes first providi... | 09/18/2007 |
| 7261863 | Closed loop continuous polymerization reactor and polymerization process A closed loop continuous emulsion polymerization apparatus at least comprising a circulation pump, a reactor tube which connects the outlet of the circulation pump to its inlet, at least one feed for supplying raw materials, an outlet, and means for cooling the tube... | 08/28/2007 |
| 7231812 | Conduit breach location detector A conduit breach location detector for detecting leaks in a conduit is disclosed. The conduit breach location detector includes a shuttle cage for connection to the conduit. A sounding shuttle is provided in the shuttle cage. A sounding cable may be connected to the... | 06/19/2007 |
| 7223759 | Antibacterial 3,5-diaminopiperidine-substituted aromatic and heteroaromatic compounds The invention relates to antibacterial 3,5-diaminopiperidine-substituted aromatic and heteroaromatic compounds and pharmaceutical compositions thereof. This invention also relates to a method of using such compounds in the treatment of bacterial infections in mammal... | 05/29/2007 |
| 7213290 | Hydraulically dynamic mono-pig scraper The invention concerns a pig scraper for cleaning the inside wall of a coating agent conduit. The pig scraper includes a body insertable in the conduit and at least one sealing lip that seals against the inside wall of the conduit and extends parallel to a longitudi... | 05/08/2007 |
| 7186327 | Method and apparatus for scaling control and in-situ cathodic protection A method and apparatus wherein an electrically conductive element is placed inside a previously installed metallic water vessel such as a supply pipe or well. A direct current voltage is then applied between the element and the conductive wall of the vessel. The con... | 03/06/2007 |
| 7181985 | Conduit inspection apparatus and method There is disclosed a conduit inspection apparatus of a type adapted to be located within and transported along a conduit such as a duct, and a method of inspecting a conduit. In one embodiment, the conduit inspection apparatus (10) comprises a body ( | 02/27/2007 |
| 7178418 | Segment of a sensor-supporting element for a scraper-type device Disclosed is a segment (15) of a sensor-supporting element for a scraper-type device, which comprises at least two pairs of runners (16a, 16b) that are arranged essentially parallel behind each other. A support plate (20) re... | 02/20/2007 |
| 7152631 | Pipe repair tool The pipe repair tool provides for repairing a damaged section of a pipeline. The repair tool comprises a main body having a top surface and a bottom surface. A compressible alignment portion is positioned above the main body. A compression plate is positioned above ... | 12/26/2006 |
| 7143829 | Downhole tool A downhole tool for conditioning a casing or liner. The tool includes blades having a a circumferential peripheral edge for 360 degree contact with the casing or liner and are formed from a composite material which comprises a polymeric fiber. Such polymeric fibers ... | 12/05/2006 |
| 7121347 | Liquid sampler A method and an apparatus raise samples of liquid such as water from a low level to a higher level, for example for obtaining a sample of groundwater from a borehole. The apparatus comprises a pair of tubes (14 and 16) extending alongside each other, w... | 10/17/2006 |
| 7086113 | Seamless pipeline sphere and method of manufacture The invention is generally directed to a pipeline sphere, and more specifically a seamless pipeline sphere wherein said sphere presents a flexible, seamless outer layer surrounding an inflatable inner bladder portion which itself defines a hollow chamber. The outer ... | 08/08/2006 |
| 7080690 | Method and apparatus using traction seal fluid displacement device for pumping wells Liquid is lifted from a well by a traction seal fluid displacement device which is moveably positioned within the production tubing, and which maintains a seal during movement. The traction seal device comprises a resilient flexible toroid shaped structure within ou... | 07/25/2006 |
| 7069615 | Squeegee device and system A toothbrush is disclosed that includes and applicator head and a handle coupled to the applicator head for manipulating the applicator head while cleaning teeth and gums. The applicator head includes a curved squeegee element and bristles that surround elongated wa... | 07/04/2006 |
| 7063608 | Grinding wheel having core body coated with impermeable coating A grinding wheel including: (a) an annular core body which includes a multiplicity of aggregate particles and a resin bond that holds said aggregate particles together; (b) an abrasive layer which is disposed radially outwardly of said annular core body and which in... | 06/20/2006 |
