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| Number | Title | Issue Date |
| 8146193 | Launcher for tube cleaning projectiles A launcher for heat exchanger tube cleaning projectiles using operator selected compressed air application for manipulating launcher operating components including hydraulic bolt, projectile plunger, and water valve to fire projectile with pressurized water, and to ... | 04/03/2012 |
| 7448105 | Pneumatic cleaning methods and systems Techniques for cleaning the inside of complexly-bent tubing are disclosed using a combination of minimal amounts of solvent and pneumatically propelled foam pellets. In order to increase device efficiency, an escapement apparatus employs a vacuum-assisted loading me... | 11/11/2008 |
| 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 |
| 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 |
| 7225877 | Subsea intervention fluid transfer system A system for subsea transfer of intervention fluids to a subsea intervention apparatus, the system, in certain aspects, including a structure and a frame pivotably mounted thereto, a plurality of frame fluid conduits on the frame for conducting fluid from a connecto... | 06/05/2007 |
| 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 |
| 7055580 | System for cleaning tubes of heat exchangers and cleaning bodies for use in the system In a system for cleaning tubes of tube-bundle type heat exchangers including a plurality of tubes (5) arranged in parallel between two chambers (10a, 10b) and flown through by a fluid medium, in particular crude oil, at a temperatu... | 06/06/2006 |
| 7051950 | Atomizer for coating unit and method for its material supply The atomizer (Z) of an electrostatic coating unit contains a dosing pump (DP) connected between the atomization device (4) and a scrapeable coiled pipe (10) which serves as a space-saving paint supply vessel and which is also situated in the atomizer. ... | 05/30/2006 |
| 7036598 | Intervention module for a well The invention relates to an intervention module (18) for well intervention operations in preferably a pressurized subsea well (2) with a wellhead (4) disposed on a water floor. The intervention module (18) is provided with necessary equip... | 05/02/2006 |
| 7028361 | Cleaning assembly A cleaning assembly for a pipe. The assembly comprises a sleeve, at least one magnet, and at least one moveable hollow member. The sleeve is moveably disposed on the outer wall of the pipe. The at least one magnet is disposed on the inner surface of the sleeve. The ... | 04/18/2006 |
| 7003838 | Hydraulic pig advance system comprising a control volume chamber containing hydraulic fluid and a force transmitting member This invention relates to a hydraulic pig advance system comprising a control volume chamber containing hydraulic fluid and a force transmitting member. The system further comprises two directional control valves which can be selectively repositioned to cause hydrau... | 02/28/2006 |
| 6925671 | Pig launcher The ability to pig a pipeline is considered necessary and vital to most pipeline operations. The present invention provides a pig inserting apparatus and method designed to satisfy the need to Insert pigs for large diameter gasoline pipelines that are made of concre... | 08/09/2005 |
| 6889400 | Cleaning member for medical tubes, porous member for cleaning treatment appliance insertion lumen of endoscope, and cleaning apparatus for cleaning treatment appliance insertion lumen of endoscope The cleaning member for a medical tube is shaped like a spherical body having a porous fibrous structure formed of a large number of superfine fibers aggregated and intertwined three-dimensionally. The spherical body moves along a lumen surface of the medical tube t... | 05/10/2005 |
| 6880195 | Pipe cleaning device A vehicle (210) for travel though a fluid-filled pipe (12) is disclosed, capable of using power derived from the fluid flow to drive the vehicle (210). Certain embodiments have drive means capable of variable pitch in order to adjust the speed a... | 04/19/2005 |
| 6786356 | Drinks machine A drinks machine, in particular a coffee machine, with an entry device for solid cleaning agent, in particular in pressed form, being user-friendly and safe during cleaning, and having an automatically dosing, enclosed dosage device for the cleaning agent which incl... | 09/07/2004 |
| 6769152 | Launcher for passing a pig into a pipeline An improved pipeline pig launcher method and use thereof for conveying a pig into a pipeline including an upright launch barrel having a lower end in communication with the pipeline, a valve affixed to an upper end of the launch barrel and having a full diameter pas... | 08/03/2004 |
| 6679949 | Method and device to allow a rigid pig to pass into a flow pipe which requires the use of a hollow flow-constricting device There is disclosed a method and a device to allow a "rigid" pig to pass into an undersea flow pipe in which a hollow flow-constricting device is in use. According to the invention the device is provided with a first pipe branch and a second pipe branch. T... | 01/20/2004 |
| 6668480 | System for cleaning gun barrels A system for cleaning the barrel of a gun which includes a compressible foam projectile, a source of compressed gas, and a flexible connector, such as a hose, for connecting the projectile with the cylinder is disclosed. The projectile resides within a no... | 12/30/2003 |
| 6631531 | Quick load air gun A quick load air gun for cleaning conduits by propelling a foam projectile through the conduit by means of a compressed air charge. The air gun includes a quick load port for inserting projectiles into the gun chamber, and a compressed air circuit includi... | 10/14/2003 |
| 6596089 | Subsea pig launcher piston pig A piston pig for pushing pigs from a larger diameter conduit into a smaller diameter conduit, where one embodiment includes a cylindrical body with a first sealing disc attached to the body and adapted to seal against the larger diameter conduit and maint... | 07/22/2003 |
| 6578226 | Applicator for inside cleaning of pipe and hose An applicator for cleaning the inside of pipes and hoses is disclosed. The applicator comprises a pressure chamber and a lid which is adjustable between open and closed positions, sealing the pressure chamber in the closed position. A sealed plane interfa... | 06/17/2003 |
| 6561488 | Pipeline cable deployment apparatus and method A fiber optic communication cable is deployed in a pipeline from a static coil drawn from a rearwardly facing exit of a cassette carried by a pipeline pig as the pig is driven along the pipeline from a launcher having a drive fluid inlet and a cable ancho... | 05/13/2003 |
| 6537383 | Subsea pig launcher A system for storing pigs and launching them into a pipeline comprises a pig storage barrel having an inlet end and an outlet end and an inside diameter sized to accommodate the pigs, the storage barrel including a pig parking chamber for controlling rele... | 03/25/2003 |
| 6527869 | Method for cleaning deposits from the interior of pipes In a first embodiment the invention comprises a method for cleaning deposits from the interior of a pipe in which a pig is propelled through the pipe by pressure from a fluid mixture of at least one liquid and at least one gas applied to the pig from the ... | 03/04/2003 |
| 6502270 | Method and apparatus for cleaning industrial pipe systems A method and an apparatus for cleaning industrial pipe systems, preferably pipe systems used in food industry, such as meat, fish and vegetable industry. The method for cleaning industrial pipe systems, includes the steps of feeding a detergent together w... | 01/07/2003 |
| 6391121 | Method of cleaning a heater A method of cleaning tubing in an operating heater, in which the tubing has an inlet and an outlet. While the heater is in operation, a pig is run through the tubing from the inlet to the outlet and then returned to the inlet along return tubing, in paral... | 05/21/2002 |
| 6360769 | Multiple plug container A cementing head is provided for introduction and separation of fluids in a well. The cementing head comprises a plug container having upper and lower fluid inlets oriented tangent to the bore of the plug container. The upper inlet is located below the up... | 03/26/2002 |
| 6336238 | Multiple pig subsea pig launcher The pig launcher is installed subsea by coupling it to a launcher manifold. The launcher manifold is installed substantially permanently subsea as a part of a pipeline. The pig launcher includes a dual bore collet connector for coupling to the launcher ma... | 01/08/2002 |
| 6328052 | Bidirectional check valve A valve for controlling fluid flow while permitting flow in only one direction includes a housing having a spherical central opening and connections to permit attachment to fluid flow lines at opposite ends of the housing. The spherical opening is configu... | 12/11/2001 |
| 6290431 | Diverless subsea hot tap system with lateral pipe tie-in A diverless process of tapping a pressurized subsea pipeline without removing the pipeline from service. The process includes the steps of lowering and landing a measurement tool onto the pipeline in order to check ovality and straightness of the pipeline... | 09/18/2001 |
| 6263534 | Delivery device Disclosed is a slug for distributing a fluid on an inner surface of a bore of a pipeline. The slug comprises a reservoir for containing the fluid to be distributed, an outlet for distributing the fluid from the reservoir and onto the inner surface of the ... | 07/24/2001 |
| 6170493 | Method of cleaning a heater A method of cleaning tubing in an operating heater, in which the tubing has an inlet and an outlet. While the heater is in operation, a pig is run though the tubing from the inlet to the outlet and then returned to the inlet along return tubing, in parall... | 01/09/2001 |
| 6145150 | Multi-dimensional pig including wiper disk permitting passage through The present disclosure sets forth a pipeline pig which is formed of two primary dimensions and two primary components. It is made with a set of N disks where N is preferably 6, 7, or 8 and the disks are all provided with a common thickness and common diam... | 11/14/2000 |
| 6139644 | Method and equipment for launching pigs into undersea pipes This invention relates to a method and equipment whereby a pig (11) launched into a gas injection line (5) can be inserted into a hydrocarbon flow line (2) in a position close to the subsea wellhead or manifold (1) without interrupting the flow of hydroca... | 10/31/2000 |
| 6082378 | Method and apparatus for internal cleaning of pipes or tubes The invention relates to a method for internal cleaning of pipes or tubes by inserting and propelling a projectile into and through respectively said pipe or tube by means of pressurized fluid, whereby the projectiles are fed one by one, in a direction ge... | 07/04/2000 |
| 6079074 | Pipe pig injector A pig injector has a magazine having a plug at one end and connected to a pig injector valve at the other end. The pig injector valve has a rotatable pig receiving chamber with a length L. Plural pigs of length L between rounded ends are positioned end to... | 06/27/2000 |
| 6070652 | Lock for balls for cleaning cooling systems The invention relates to a ball collector for a device for returning balls for the cleaning of the tubes of cooling systems operated with a fluid, namely water, comprising a casing which is subdivided into an upper chamber with an inlet for the balls and ... | 06/06/2000 |
| 6029302 | Cleanable scraper station The invention concerns a cleanable scraper station which is designed as a dispatch/receive station (1;1*) and through which the product or cleaning agent flows. The aim of the invention is to improve the cleanability of the scraper station compared with p... | 02/29/2000 |
| 6022421 | Method for remotely launching subsea pigs in response to wellhead pressure change A method for sensing and launching pipeline pigs into a pipeline. The method includes pressurizing a pressure accumulator in a pig launching system that includes a pig chamber, a plurality of pigs, a launch tube, and the pressure accumulator. The method f... | 02/08/2000 |
| 5974611 | Interlocking multipurpose airtool A multipurpose air tool (1) having a handle (2) to which a head (3) can be removably attached is disclosed. The head (3) has attached thereto various such tools as a face plate (4) and replaceable nozzles (5). The head (3) is interlocked to the handle (2)... | 11/02/1999 |
