Class 73/49.5 - Pipe

Subclass of Class 73 - Measuring and testing
Definition: Subject matter for testing pipe.
No. of patents: 162
Last issue date: 01/24/2012

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Number	Title	Issue Date
8099997	Potassium formate gel designed for the prevention of water ingress and dewatering of pipelines or flowlines A gelled composition for pipeline, flowline, pipeline jumper or flowline jumper dewatering or preventing ingress of seawater into open pipeline systems or components during tie-in operations of jumpers or additional pipe, valving, manifolds, subsea pipeline architec...	01/24/2012
8065905	Composition and method for pipeline conditioning and freezing point suppression Method for dewatering, pressure testing, hydrotreating, suppressing methane hydrate formation and suppressing solution freezing point in pipeline operations have been disclosed, where the solution used in the operations includes an effective amount of a metal format...	11/29/2011
RE42358	Subsea vehicle assisted pipeline commissioning method The present invention is directed to a method for completing the commissioning of a subsea pipeline by purging with a compressed gas to dewater and dry the line wherein the operation is done on the seabed. More specifically, the method is carried out with a subsea v...	05/17/2011
7913543	Method of using a device for measuring the back pressure in chemical reactor tubes A device and method for measuring the back pressure in chemical reactor tubes includes many automated features. Inflatable tube seals may be automatically inflated. The device may measure several tubes at once. It may transmit data electronically to a remote compute...	03/29/2011
7779676	Apparatus and method for testing or isolating a pipe segment with magnetically actuated sealing means An apparatus for isolating and/or testing a section of a pipe includes a generally annular body having, on each end, a boss. A resilient member such as an O-ring is provided between the annular body and each boss. A series of electromagnets are provided for forcing ...	08/24/2010
7748255	Method for assessing chemical reactor tubes A device and method for measuring the back pressure in chemical reactor tubes includes many automated features. Inflatable tube seals may be automatically inflated. The device may measure several tubes at once. It may transmit data electronically to a remote compute...	07/06/2010
7628056	Internal pressure testing apparatus and method for pipe A pressure testing apparatus is provided for internally pressure testing pipe. A mandrel is secured to a frame and is adapted to receive a pipe thereon such that a gap exists between an outer surface of the mandrel and an inner surface of the pipe. A first end cap i...	12/08/2009
7610796	Method for adjusting specific quality characteristics and properties of pipes by means of a pressure test The invention relates to a method for adjusting specific quality characteristics and/or properties of pipes (1) by means of a pressure test, especially for steel pipes of pipe conduits for combustible media. According to said method, in addition to the water ...	11/03/2009
7555936	Hydraulic hose with integral life-sensing capability and method therefor A system and method for predicting structural failure of a wall of a fluid containment vessel, such as a hydraulic hose or other type of pressurized conduit of types used in mobile machinery, automotive, aerospace, manufacturing, and process equipment. The wall of t...	07/07/2009
7487665	Method for monitoring the stay time in a restricted conduit The disclosure relates to a method of monitoring the stay time in a restricted conduit, such as a holding tube in a heat treatment plant. A first measurement registration x of a chemical or physical magnitude, such as the temperature, takes place in the beginning of...	02/10/2009
7475591	Methods and systems for hydrostatic testing a pipeline A method of hydrostatic testing a selected section of a pipeline having fluid flow therethrough, including the steps of introducing into the pipeline a pig train including a leading seal pig, a supply liquid slug, a first isolation tool, a test liquid slug and a sec...	01/13/2009
7395695	Apparatus for testing lengths of pipe A pipe testing apparatus includes a mandrel adapted for insertion within the pipe and two sealing devices connected to the mandrel and adapted to seal opposite ends of the pipe to create an annular space between the mandrel, the pipe, and the sealing devices. The ap...	07/08/2008
7396389	Abnormality detection apparatus for exhaust gas purification apparatus for internal combustion engine Unless an abnormality exists in piping introducing a pressure from front and rear of DPF 22 into a differential pressure sensor 45, pulsations of pressure propagation through an exhaust passage 21 is offset in a detection value of a pressure dif...	07/08/2008
7390024	All-Purpose Pressure Test Kit A test apparatus for testing the fluid tightness of pipes of different sizes includes a one-piece main body having a tubular portion defining a chamber with an internally threaded wall portion that can be screwed separately onto an externally threaded pipe in a flui...	06/24/2008
7328744	Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids In one embodiment, a method of treating a subterranean formation is provided comprising the steps of providing a gelled liquid hydrocarbon treatment fluid comprising a liquid hydrocarbon and a gelling agent that comprises a polyvalent metal salt of an organophosphon...	02/12/2008
7325573	Plumbing line test plug and method of use of the same A plumbing line test plug includes a plug body adapted to plug an interior diameter of a plumbing line. The body has a wet face, which is exposed to liquid when in use, and a dry face, which is opposed to the wet face. A flexible pressure responsive annular membrane...	02/05/2008
7314850	Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids Improved methods and compositions for treating subterranean formations penetrated by well bores are provided. A method for breaking a gelled hydrocarbon fluid comprised of a hydrocarbon liquid, a ferric iron or aluminum polyvalent metal salt of a phosphonic acid est...	01/01/2008
7308820	Piezocable based sensor for measuring unsteady pressures inside a pipe A piezocable based sensor for measuring unsteady pressures inside a pipe comprises a cable wrapped around the pipe and an outer band compressing the cable towards the pipe. The cable provides a signal indicative of unsteady pressure within the pipe in response to ex...	12/18/2007
7270592	Milling machine The improved milling machine makes use of individually controlled x-axis, y-axis, and z-axis carriages. These carriages provide positive and precise control of the position of the cutting tools and the blank to be cut. The tools are located in spindles that are move...	09/18/2007
7251983	Secondary containment system and method A pump housing that contains a pump that draws fuel from an underground storage tank containing fuel to deliver to fuel dispensers in a service station environment. The pump is coupled to a double-walled fuel pipe that carries the fuel from the pump to the fuel disp...	08/07/2007
7240538	Hydro test apparatus and method for ammunition An apparatus for hydrotesting a hollow component includes a generally cylindrical main body having a bore therethrough that defines first and second open ends, the bore including a central axis; first and second end plates fixed to the main body for closing t...	07/10/2007
7240537	Method for the determination of the wall friction profile along pipes by pressure transients measurements The present invention deals with a method which allows to determine the wall friction profile along pipes transporting liquids, particularly petroleum industry liquids, by measuring the pressure transients induced by fast changes in the flow rate. This method is app...	07/10/2007
7234524	Subsea chemical injection unit for additive injection and monitoring system for oilfield operations A system monitors and controls the injection of additives into formation fluids recovered through a subsea well. The system includes a chemical injection unit and a controller positioned at a remote subsea location. The injection unit uses a pump to supply one or mo...	06/26/2007
7234731	Gas feed pipe connecting screw for continuous casting nozzle A gas feed pipe connecting screw for a continuous casting nozzle which is mounted to the continuous casting nozzle formed with an axially extending ring-shaped slit concentric with a nozzle bore. The screw connects the nozzle to a gas feed pipe for blowing a gas int...	06/26/2007
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
7207384	Wellhead and control stack pressure test plug tool A test plug tool for use in testing a pressure integrity of a pressure control stack mounted to a wellhead, including a joint between a casing and a casing support in the wellhead. The test plug tool includes a test plug of an appropriate diameter used to pressure t...	04/24/2007
7197950	System for temperature-controlled testing of hydraulically actuated devices A temperature controlled hydraulic fluid supply circuit (12) includes a first hydraulic fluid reservoir (18), that has an initial hydraulic fluid (20), and a temperature controlled housing (45). A second hydraulic fluid reservoir (26	04/03/2007
7174771	Leak detection system A leak detection system capable of automatically detecting a leak in a pressurized piping system. A pressure decay test is utilized to test for leaks in the piping system. Disruption to users of the piping system is reduced by only performing the pressure decay test...	02/13/2007
7159450	Method and apparatus for assembling and testing a fluid conduit A method and apparatus for assembling a fluid conduit assembly and testing the fluid conduit for leaks. Clipping devices support fasteners at a position remote from the conduit. According to the invention the fasteners can be loaded into clip nests provided by the c...	01/09/2007
7155961	Bleed leak detection system A leak detector for an insulated duct carrying pressurized hot air comprises a cuff secured over a circumferential cut in the insulation of the duct, thereby creating a reservoir of hot air which has leaked from the duct, a manifold defining a conduit therein in com...	01/02/2007
7146761	Gun barrel safety lock with hand ratcheting wrench A gun safety device includes a barrel plug assembly having a first compression member, a second compression member, an expansion member, a joining member, and an adjustable extension rod assembly. The expansion member is sandwiched between the first compression memb...	12/12/2006
7137308	Sliding pipe plug A sliding pipe plug for working on and testing pipes is presented. The sliding pipe plug includes a center portion and a gasket disposed about the central portion. When towed through the pipe, the sliding pipe plug maintains a substantial seal against water flowing ...	11/21/2006
7100463	Pipeline locator/coordinate mapping device The pipeline locator/coordinate mapping device is a tool to be utilized for the location of pipeline coordinate data points via a Cartesian coordinate system. The device will initiate from a known origin or datum with horizontal, X coordinate; longitudinal, Y coordi...	09/05/2006
7081788	Band pass filter A band pass filter includes a first band pass filter constructed of a biquad circuit and having a first center frequency, and a second bandpass filter constructed of a biquad circuit and having a second center frequency different from the first center frequency, and...	07/25/2006
7066010	Hydrostatic test system and method A system and method of hydrostatic testing a pipeline that is not in service, according to which the pipeline is hydrostatically pressurized and a portable remote telemetry unit is temporarily connected to the pipeline for measuring variables corresponding to the hy...	06/27/2006
7058549	Apparatus and method for measuring unsteady pressures within a large diameter pipe An apparatus 10 is provided that includes a spatial array of at least two unsteady pressure sensors 18–21 placed at predetermined axial locations x1–xN disposed axially along a pipe 14 for measuring at least one paramet...	06/06/2006
7051580	Hydraulic monitoring method and apparatus A hydraulic monitoring method and apparatus provides a monitoring system which replaces the void or air space within the interstitial/annular volume of double wall piping with an inert environmentally safe, food grade, hydraulic liquid. Monitoring of the liquid prov...	05/30/2006
7051576	Secondary containment leak prevention and detection system and method A pump housing that contains a pump that draws fuel from an underground storage tank containing fuel to deliver to fuel dispensers in a service station environment. The pump is coupled to a double-walled fuel pipe that carries the fuel from the pump to the fuel disp...	05/30/2006
7036346	Apparatus for exposing a pipeline to high internal pressure An apparatus for exposing a pipeline to a high internal pressure of the order of 1000 to 15000 bar, having at least a first, substantially stationary receiving device for a first end of the pipeline and a second receiving device for a second end of the pipeline, whe...	05/02/2006
7028533	Flow rate measuring method and flowmeter, flow rate measuring section package used for them and flow rate measuring unit using them, and piping leakage inspection device using flowmeter Measurements are obtained by a computing unit based on an output Vh from an indirectly-heated constant-temperature controlling flow rate measuring section (16) and an output Vout from a two-constant-point temperature difference detecting flow rate measuring s...	04/18/2006

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Class 73/49.5 - Pipe