Class / Patent application number | Description | Number of patent applications / Date published |
073490100 | Pipe | 20 |
20090165534 | METHOD AND APPARATUS FOR TESTING LEAKAGE OF PIPE PASSAGE - A method for testing leakage of a pipe passage employs a flow rate of gas used in testing supplied to the inside of a pipe passage undergoing testing hermetically sealed on one side while detecting flow rate with a flow measuring device and pressure with a pressure detector, and detecting temperature of the gas used, and inputting the detected values of pressure, flow rate and temperature into a computation treatment apparatus, and internal capacity V | 07-02-2009 |
20090277252 | LEAKAGE DETECTING APPARATUS - Provided is a leakage detecting apparatus that installs a detection pipeline for detecting a leakage on a pipe through which a liquid flows and determines whether liquid leaks from the pipe based on a voltage change of the detection pipeline there is provided a leakage detection apparatus for detecting whether a leakage has occurred by using a detection pipeline including a plurality of wires, the leakage detection apparatus including: the detection pipeline including first through third electric wires in which end portions of the first and second electric wires are electrically connected through a diode; a pipeline measuring unit, after a constant current is applied to the first electric wire, measuring a pipeline voltage at specific point of place of each of the second and third electric wires; and a microprocessor determining whether the leakage has occurred based on the pipeline voltage of each of the second and third electric wires. | 11-12-2009 |
20100005864 | Method To Measure Tearing Resistance - At least one method, structure and apparatus used to measure tearing resistance of a commercial member. The method includes the use of full-scale testing methods and apparatuses to obtain unloading compliance measurements, which are used to generate a tearing resistance curve that includes the effects of geometry and considers data beyond the yield point of the commercial member. The commercial member may be a pipeline for carrying hydrocarbons. | 01-14-2010 |
20120255345 | METHODS AND SYSTEMS FOR DETECTING AND SEALING DRY FIT CONNECTIONS IN A PIPING ASSEMBLY - Systems and methods for evaluating a piping system for an improperly assembled fluid tight connection. Provided is a preferred joint assembly unable to hold fluid pressure in either one of a dry fit connection and partial seal connection. The joint assembly includes a coupler to identify a leak. More specifically, the coupler includes a substantially tubular wall portion having an outer surface, an inner surface and a channel disposed along one of the inner and outer surfaces. The channel has a first configuration for carrying a fluid between an interior of the piping system and an exterior of a piping system, and a second configuration to prevent fluid from being carried between the interior and the exterior of the piping system. The channel is further preferably convertible from the first configuration to the second configuration in the presence of a minimum amount of sealant material. | 10-11-2012 |
20120266661 | DEVICE FOR TIGHTNESS CONTROL AND MARKING OF HOLES AND/OR OTHER DAMAGES ON HOSE, AND OPTIONAL AUTOMATIC DETECTION OF HOLES - In a test pressurizing system for hose such as fire hose a device ( | 10-25-2012 |
20120312080 | METHOD AND DEVICE FOR LEAK TESTING IN AN AUTOMATED ELECTROHYDRAULIC CLUTCH SYSTEM IN A MOTOR VEHICLE - In a method for leak testing in an automated electrohydraulic clutch system in a motor vehicle, in which an electromechanical actuator controls the clutch travel of a clutch via a hydraulic piping system, in order that a defective system is detected reliably and rapidly, the leak in the clutch system is detected using a pressure measurement in the electromechanical actuator and compared to a characteristic clutch curve. | 12-13-2012 |
20130125626 | LEAK DETECTION APPARATUS, SYSTEM, AND METHOD - Embodiments of the present invention provide an apparatus and method for detecting leaks in a pipe system. Embodiments of the apparatus include components for detectable gas generation and connection to a pipe system. Embodiments of the method include operating a detectable gas generator that is attached to a pipe system and locating a leak in the pipe system by locating the source of detectable gas from the pipe system. | 05-23-2013 |
20130145826 | LEAK DETECTOR AND SENSOR - A leak detection sensor includes a transducer, the transducer including a base, a piezoelectric layer, and a conductive layer and at least two leads connected to the transducer. A method of making a leak detection sensor includes obtaining a transducer, the transducer including a base, a piezoelectric layer, and a conductive layer; and effecting a mounting hole such that the mounting hole is defined in the transducer. A jig includes a support and a punch. | 06-13-2013 |
20130160525 | METHODS AND APPARATUS FOR SUBSEA PIPELINE INTEGRITY TESTING - Apparatus and methods are described for subsea pipeline servicing, including line-pack testing, physical integrity testing, recovery of damaged sections of pipelines, and product removal from subsea structures. In one embodiment of the invention, a subsea pipeline service skid is provided including at least one sample collection bladder affixed to the skid and in fluid communication with a skid mounted pump dimensioned to pull a sample from the subsea pipeline. In another embodiment, a product removal bladder is provided for removal of the hydrocarbons from a subsea structure. | 06-27-2013 |
20130186181 | LEAK DETECTION SYSTEM BASED ON FORCE TRANSDUCTION - Leak detection system. A rigid body is resiliently supported within an outer cage. Means are provided for detecting displacement of the rigid body with respect to the outer cage, the displacement indicating a leak when the rigid body is moved by a suction force generated by a local pressure gradient resulting from a leak within a pipe network. The invention allows a leak to be determined around the circumference of a pipe. | 07-25-2013 |
20130327128 | LEAKAGE INSPECTION METHOD OF HEAT EXCHANGER - When a liquid level is changed even though an inflow of a heat medium into a specific heat transfer tube bundle is stopped, it is determined that there is no abnormality in the heat transfer tube bundle in which the inflow of the heat medium is stopped and then another heat transfer tube bundle is inspected. Next, when the inflow of the heat medium into the specific heat transfer tube bundle is stopped not to cause the change in the liquid level, it is determined that there is an abnormality in the heat transfer tube bundle to which the inflow of the heat medium is stopped. Thus, it is possible to determine that there is an abnormality in the heat transfer tube bundle in which the inflow of the heat medium is stopped. | 12-12-2013 |
20140013829 | FLEXIBLE TUBULAR PIPE FOR TRANSPORTING A PETROLEUM FLUID SUCH AS A MULTIPHASE FLUID OR A GAS - The present disclosure relates to a flexible tubular pipe ( | 01-16-2014 |
20140130577 | Leak Detection Apparatus - Leak detection apparatus for deployment in a pipe. The apparatus includes a carrier disposed for motion along the pipe and a detector connected to move with the carrier in an axial direction. The detector comprises a drum mounted for rotation about pitch and yaw axes. A flexible material is mounted on, and extends from, the drum and at least two sensors responsive to drum rotation are provided. The flexible material will be drawn into contact with a wall of the pipe at a leak location, thereby producing a torque on the drum, causing the drum to rotate, and the at least two sensors to generate signals from which leak location is determined. | 05-15-2014 |
20140260555 | SYSTEMS AND METHODS FOR DETECTING AND COMMUNICATING MOISTURE LEAKS IN FLUID CONDUITS - A system for detecting and communicating moisture leaking from a fluid conduit of the type comprising a fitting configured to mate with the fluid conduit, the fitting including an outer surface including an outer edge portion that is enclosed within the fluid conduit when positioning the fluid conduit over at least a portion of the outer surface, wherein the system includes a sensor for detecting moisture, the sensor being positioned proximate to the outer edge portion of the fitting and configured to generate a signal representing a result of moisture detection, and a receiver configured to receive the signal generated by the sensor. The system may include a communication circuit to provide wired or wireless communication between the sensor and the receiver. Other systems and method for detecting and communicating moisture leakage are further disclosed herein. | 09-18-2014 |
20150082869 | DETECTION METHOD AND DETECTION DEVICE FOR PIPELINES IN MACHINE-CONTROLLED LEAKAGE AND COMPLIANCE TESTS OF ANESTHETIC MACHINE - A detection method for pipelines in machine-controlled leakage and compliance tests of an anesthetic machine, comprising: entering a machine control leakage test and compliance test state of an anesthetic machine; piping air in an air passage outside a folding bag according to a preset flow rate, and controlling and detecting a pressure value in the air passage and the air piping time at the same time; acquiring the pressure value in the air passage and the air piping time, and judging whether a condition for the anesthetic machine to stop piping air is achieved or not according to the pressure value and the air piping time; according to the pressure value and the air piping time, obtaining a pressure change rate in the air passage in the whole air piping process; according to the pressure change rate, judging whether pipelines in leakage and compliance tests are correctly connected or not. | 03-26-2015 |
20150082870 | DEVICE FOR DETECTING FLUID LEAKAGE - The subject matter disclosed herein relates to fluid leakage detection. More particularly, subject matter relates to a device for detecting fluid leakage in a fluid drain pipe attached to a power transformer device. The device comprises fluid collection compartment attached to bottom of the fluid drain pipe and a fluid level switch is positioned in the fluid collection compartment to generate alarm signal to indicate fluid leakage. | 03-26-2015 |
20160003702 | A PIPELINE LEAK DETECTION SYSTEM - The invention generally relates to a pipeline leak detection system. The system, comprising at least one fluid collection member adapted to be placed adjacent a pipeline and adapted to receive fluid leaking from the pipeline; a flexible cover covering at feast part of the pipeline and the at least one fluid collection member; and a fluid detector in fluid communication with the at least one fluid collection member. | 01-07-2016 |
20160041060 | Pressure Testing Apparatus - A pipe pressure testing apparatus for failure testing a section of an elongated pipe is provided. The apparatus includes a plurality of spherical bodies disposed within and filling the section of elongated pipe and leaving a void space within the section of elongated pipe. A first end cap is attached to and seals a first end of the elongated pipe. A second end cap is attached to and seals a second of the elongated pipe. And a test fluid line is in fluid communication with the void space to fill the void space with a testing fluid. | 02-11-2016 |
20160047706 | PIPING PROBLEM SENSING DATA LOGGER, PIPING STRUCTURE, AND PIPING PROBLEM SENSING SYSTEM - A piping problem sensing data logger that acquires vibration data of high quality and improves the accuracy of problem sensing because the installation method can be standardized and that reduces the risk of being detached from piping and the possibility of being lost after someone detaches it because it can be stationary-installed. The piping problem sensing data logger ( | 02-18-2016 |
20190145851 | Hydrostatic and Vibration Test Method for a Blowout Preventer | 05-16-2019 |