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| Number | Title | Issue Date |
| 8146405 | Apparatus and methods for indicating seal leakage Apparatus and methods for indicating seal leakage between two components are provided. In one aspect, apparatus and methods for directing material penetrating a leaking nozzle repair shield seal to a predetermined indication point such that a user viewing such indic... | 04/03/2012 |
| 7984640 | Pressure-based tester for a platform assembly The invention provides for a pressure-based tester for testing integrity of a platform assembly. The platform assembly includes a pair of assembled platform components fastened together and a fluid path extending into both components, the platform assembly suitable ... | 07/26/2011 |
| 7971472 | Leak tester for a carrier for printhead integrated circuitry Provided is a leak tester for a carrier for printhead integrated circuits. The carrier has at least one fluid inlet in fluid communication with a plurality of fluid outlets via discrete fluid paths. The tester includes a support assembly that includes at least one r... | 07/05/2011 |
| 7856865 | Method and system for controlling quality and tracking parts for repair and replacement of a piping system The invention comprises a method for controlling quality in a piping system, including a valve and a piping structure coupled to the valve. The method comprises the following: pressurize the piping structure with a gas at greater than sea-level pressure; seal the ga... | 12/28/2010 |
| 7845211 | Apparatus and method for forming and testing lengths of pipe A pipe forming and testing apparatus includes a frame supporting a mandrel, the mandrel being adapted for positioning 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 t... | 12/07/2010 |
| 7743647 | Orifice test device for protective mask testers An orifice test calibration device tests the functionality of protective mask testers. The orifice test calibration device has a semi-rigid tubular channel with one end for sealing the flow outlet port of the protective mask tester and a second end for sealing the v... | 06/29/2010 |
| 7716967 | Leak detector sleeve A leak detector sleeve allows performing leak detection at a flanged joint. The leak detector sleeve is made of elastomeric material that allows achieving a gas-tight seal when the leak detector sleeve encircles a flanged joint. The leak detector sleeve includes a h... | 05/18/2010 |
| 7685866 | Leakage checking and calibrating of a liquid delivery system A liquid delivery system having at least one channel, at least one valve within that channel, at least one flow sensing device within that channel, and a pressure source downstream of the valve capable for generating variable pressures. ... | 03/30/2010 |
| 7594426 | M45 protective mask outlet valve adapter An adapter to connect a portable testing device known as the Joint Service Mask Leakage Tester (JSMLT) to the outlet valve body of a protective mask such as the M45 mask for testing and validating the operation of the outlet valve of the mask prior to use. ... | 09/29/2009 |
| 7536899 | Flange penetrator pressure test fixture An apparatus as a fixture for fluidly pressure testing a flange penetrator seal with the apparatus having a flange cover including a recess and a flange extension including a recess with the extension matable to the cover such that the recesses create a volume aroun... | 05/26/2009 |
| 7513141 | Method for differentially pumping endblock seal cavity A system for providing a seal between a rotating part and a stationary part that comprises two seals in series separated by a cavity is disclosed. The cavity may be at low pressure and failure of either seal may be detected by a change in cavity pressure. An alarm m... | 04/07/2009 |
| 7500382 | Detection of leaks in heat exchangers A method for the detection of leaks in a heat exchanger having discrete flow paths for working fluid and heat exchange fluid, respectively, the method comprises introduction of a detection fluid within one of said flow paths and allowing air to flow through the othe... | 03/10/2009 |
| 7426855 | Method and apparatus for testing the adhesive strength of overlays of plain bearing bushings A method and an apparatus for testing the adhesive strength of overlays attached to the inside of plain bearing bushings. The method is characterized in specifying clearance between the plain bearing bushing tested and a rotating or oscillating pin extending through... | 09/23/2008 |
| 7398675 | Dual slide gate valve and method for using same A method and device for pressure testing a pipe line is provided wherein a fitting is inserted into the pipeline by inserting male ends of the pipeline into female ends of the fitting to define a flow path through the fitting extending along a longitudinal axis. The... | 07/15/2008 |
| 7398676 | Leak sensor and leak sensing system A leak sensor and a leak sensing system are provided. The leak sensor preferably includes a fluid sensing member that is capable of sensing and indicating the presence of a fluid leaked from a fluid storage or transport member. The leak sensor further preferably inc... | 07/15/2008 |
| 7387012 | Leak detection sensor system and method for double carcass hose A fluid leak detection system mounts to a hose line segment of the type comprising at least an inner carcass and an outer containment carcass separated from the inner carcass by a collection space. The system includes a housing defined by sidewalls externally mounta... | 06/17/2008 |
| 7387013 | Method and system for controlling quality and tracking parts for repair and replacement of a piping system The invention comprises a method for controlling quality in a piping system, including a valve and a piping structure coupled to the valve. The method comprises the following: pressurize the piping structure with a gas at greater than sea-level pressure; seal the ga... | 06/17/2008 |
| 7383721 | Leak Detector A leak detector for detecting flow of at least partially conductive fluid includes two electrodes and an electrical circuit. A valve device including an actuator is constructed to receive open and close signals for opening and closing the valve device between an inp... | 06/10/2008 |
| 7362230 | Leak detection apparatus Leak detection apparatuses located, at least in part, in the deadspace below a floor in an abode wherein the leak detection apparatus captures, detects and signals the presence of leaking water and other aqueous solutions. ... | 04/22/2008 |
| 7347087 | Engine oil leak test system and method A system and method for testing partially assembled engines for possible oil leaks. The system includes engine pressurizing devices that are automatically controlled by a controller according to a predetermined control program based upon the engine model type being ... | 03/25/2008 |
| 7347218 | Roof cap removal tool The present invention provides a method and apparatus for removing a test plug from a vent when positioned at a remote location with respect to the vent. The apparatus includes a cover having a handle section and base, the cover being visible from a remote location ... | 03/25/2008 |
| 7318350 | Valve monitoring system and method A valve monitoring system includes an alert generation system and a memory. The memory encodes baseline acoustic emission data on the valve for a predetermined period of operation. The alert generation system is arranged to receive acoustic emission data for the val... | 01/15/2008 |
| 7314085 | Well operations system A wellhead has, instead of a conventional Christmas tree, a spool tree (34) in which a tubing hanger (54) is landed at a predetermined angular orientation. As the tubing string can be pulled without disturbing the tree, many advantages follow, includin... | 01/01/2008 |
| 7290450 | Process diagnostics A diagnostic device for use in a industrial process includes monitoring electronics or diagnostic circuitry configured to diagnose or identify a condition or other occurrence in the industrial process. The system can be implemented in a process device such as a flow... | 11/06/2007 |
| 7283913 | Method of executing a leak control system, and a leak control system for performing the method The invention relates to a leak control system (1) in two-stringed pipe installations and a method of executing a leak control system comprising one stop valve (2) with an associated flow meter (3) arranged in the supply pipe (4) of the p... | 10/16/2007 |
| 7272971 | Quick-connect pressure test system The present invention provides a quick-connect pressure test apparatus. The apparatus includes a test plug having a set of sealing rings extending around a sidewall thereof for fitting within an inner diameter of a pipe. The test plug has a first end having a receiv... | 09/25/2007 |
| 7251985 | Safety module and measuring arrangement with safety module A measuring arrangement, including: a measuring transmitter with a sensor for registering a property of a medium and for issuing a primary signal dependent on the property; a transmitter housing, with at least one chamber and a first opening on the side facing the m... | 08/07/2007 |
| 7241115 | Methods and apparatus for determining the presence or absence of a fluid leak Embodiments of the present invention feature a method and apparatus for detecting defects, such as, leaks, component failure and adverse performance. One embodiment of the present apparatus for pumping fluid comprises a pumping chamber having an inlet and an outlet ... | 07/10/2007 |
| 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 |
| 7185529 | Shower station testing assembly for pressure testing plumbing The present invention provides a testing assembly for pressure testing a plumbing system in a building where the building has a shower station with a drain and a shower inlet. The testing assembly includes a drain adapter, a hose fitting on the shower inlet, and a h... | 03/06/2007 |
| 7185969 | Droplet dispensation from a reservoir with reduction in uncontrolled electrostatic charge Devices and methods are provided for reducing the uncontrolled electrostatic charges that can alter the volume and/or trajectory of a droplet, which is typically ejected through the application of focused acoustic radiation. Also provided are reservoirs and substrat... | 03/06/2007 |
| 7178385 | Method and apparatus for detecting leaks The present invention relates to a sensor apparatus configured to detect the presence of a gas, such as a tracer gas and a leak detection apparatus configured to detect the present of a tracer gas and indicate the location of a leak. The sensor apparatus includes mu... | 02/20/2007 |
| 7174773 | Leak-testing technique for differential pressure sensor array A leak-testing technique and apparatus for differential pressure sensor arrays is provided. A reference pressure sensor array is provided, wherein a seal is disposed between the reference pressure sensor array and a target differential pressure sensor array. A probe... | 02/13/2007 |
| 7172027 | Expanding tubing A method of expanding tubing downhole comprises providing a section of expandable tubing of a first diameter, and axially compressing the tubing to induce buckling, such that the buckled portion describes a larger second diameter. The resulting diametric expansion m... | 02/06/2007 |
| 7168497 | Downhole sealing A method of providing a downhole seal, such as a packer, in a drilled bore between inner tubing and outer tubing comprises: providing an intermediate tubing section defining a seal arrangement for engaging with the inner tubing; and radially plastically deforming th... | 01/30/2007 |
| 7165446 | Failure diagnostic apparatus for fuel vapor purge system and fuel vapor purge apparatus and combustion engine having failure diagnostic apparatus After a reference pressure using a reference hole is measured, a pressure in an evaporation path is measured. An ECU conducts failure diagnosis using, as a determination pressure for diagnosing presence/absence of a failure, a value obtained by correcting the refere... | 01/23/2007 |
| 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 |
| 7152375 | Seal integrity detection system A seal integrity verification system scans for changes in impedance in a seal with integral coaxial waveguide, twisted pair wires, parallel ribbon wires or parallel wires. The wires are monitored by a TDR to note changes in impedance. The changes indicate the locati... | 12/26/2006 |
| 7146844 | Apparatus and method for testing hydraulic pressure relief valves An apparatus for testing hydraulic pressure relief valves has a fixture body with an internal cavity sized to receive the valve completely within the fixture body. A closure may be secured to the body to seal the valve within the cavity. The apparatus further includ... | 12/12/2006 |
| 7140236 | Method and system for controlling quality and tracking parts for repair and replacement in a piping system The invention comprises a method for controlling quality in a piping system, including a valve and a piping structure coupled to the valve. The method comprises the following: pressurize the piping structure with a gas at greater than sea-level pressure; seal the ga... | 11/28/2006 |
