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| Number | Title | Issue Date |
| 8146417 | Hydraulic accumulator with position sensor A linear position sensor is installed inside the pressure vessel of a hydraulic accumulator to provide positional information for the moveable element inside of the accumulator. The positional information provides accumulator charge condition data for use in hydraul... | 04/03/2012 |
| 8117908 | Position measuring device for a fluidic cylinder The present disclosure relates to a position measuring device for a fluidic cylinder, which includes a cylinder jacket and a piston rod longitudinally movable in the cylinder jacket, wherein the position measuring device includes an evaluation unit which determines ... | 02/21/2012 |
| 8074512 | Partial stroke testing system coupled with fuel control valve A system for on-line testing of an emergency shut-off valve includes a first emergency shut-off valve and a control for initiating a test on the first emergency shut-off valve. The system also includes a fluid actuator for opening and closing the first emergency shu... | 12/13/2011 |
| 8069717 | Method for diagnosing machine fault by analyzing hydraulic fluid Method for monitoring conditions within a plurality of machines that receive fluid from a common source includes providing a supply line extending from the common source to an inlet at each of the machines. A return line is also provided that extends from an outlet ... | 12/06/2011 |
| 7954371 | Condition monitoring of pumps and pump system A method of monitoring the condition of a pump (10) or at least one component of a system that includes a pump which component or components are not a part of the pump, includes the step of generating a predetermined test condition in the pump or system compo... | 06/07/2011 |
| 7954372 | Diagnosis of pitch and load defects The invention relates to a method, system and computer readable code for diagnosis of pitch and/or load defects of e.g. wind turbines as well as wind turbines using said diagnosis method and/or comprising said diagnosis system. ... | 06/07/2011 |
| 7913558 | Method for prevention/detection of mechanical overload in a reciprocating gas compressor Mechanical overloads in a reciprocating gas compressor can cause irreparable damage to compressor components if the source of the overloads is not repaired. A method of detecting mechanical overloads includes applying an overload indicator across an interface betwee... | 03/29/2011 |
| 7861582 | Flow rate estimation method of blood pump In a flow rate estimation method of a blood pump, a general flow rate estimation formula which includes a correction term is formed based on a plurality of blood pumps. Measured data obtained from an objective blood pump implanted inside a patient is substituted int... | 01/04/2011 |
| 7827860 | Mobile pump testing apparatus A pump testing apparatus includes a tank mounted on a mobile trailer for testing water pumps associated with fire fighting equipment. Two rotatable draft tubes extend into the tank for drawing water from the lower part of the tank through suction hoses connected to ... | 11/09/2010 |
| 7805989 | Pressure tube for a position measuring system A position measuring system, especially for hydraulic valve, having a pressure tube to accommodate an armature is provided, whereby the pressure tube is manufactured by deep-drawing. As a result, a cost-effective manufacturing process can be employed for the pressur... | 10/05/2010 |
| 7775102 | Method for testing a high-pressure pump in a fuel system A method for testing the function of a high-pressure pump having a plurality of pump elements, which each define a respective work chamber which is in communication, via a suction valve with a low-pressure region, from which fuel can be aspirated, and via a pressure... | 08/17/2010 |
| 7621179 | Diagnostic system and method for a valve, especially a check valve of a positive displacement pump A diagnostic system and method for a valve, especially a check valve of a positive displacement pump, including at least one solid-borne sound sensor is provided. A first value of a parameter of a sound signal recorded in the closed state of the valve and a second v... | 11/24/2009 |
| 7543492 | Vacuum line and a method of monitoring such a line The present invention provides a vacuum line for pumping gas from a process chamber, the vacuum line comprising at least: a pump unit comprising a pump body and a motor; a gas exhaust system; first... | 06/09/2009 |
| 7516656 | Method and apparatus for diagnosing motor-operated valve A diagnostic method and apparatus for diagnosing a motor-operated valve capable of continuously measuring a preload of a spring cartridge at low costs, with high accuracy, and with ease, so that the elastic characteristics of the spring cartridge may be easily calib... | 04/14/2009 |
| 7497116 | Flow rate estimation method of blood pump In a flow rate estimation method of a blood pump, a general flow rate estimation formula which includes a correction term is formed based on a plurality of blood pumps. Measured data obtained from an objective blood pump implanted inside a patient is substituted int... | 03/03/2009 |
| 7493809 | Method and system for measuring deformation in turbine blades Disclosed is a method for measuring deformation of a turbine blade, the method including identifying at least one measuring point disposed on the turbine blade, retaining information pertaining to a first position of the at least one measuring point, operating the t... | 02/24/2009 |
| 7451644 | Method for verifying the performance of a test of the functionality of a safety valve The invention pertains to a method for verifying the performance of a test of the functionality of an actuator (1) with a drive (2) and a valve (3a), where the valve (3a) can be moved by the drive (2), which uses a dr... | 11/18/2008 |
| 7406864 | Method for prevention/detection of mechanical overload in a reciprocating gas compressor Mechanical overloads in a reciprocating gas compressor can cause irreparable damage to compressor components if the source of the overloads is not repaired. A method of detecting mechanical overloads includes forming a mechanical fuse that is configured to strain un... | 08/05/2008 |
| 7401500 | Positive displacement pump monitor A positive displacement pump monitor. The monitor includes a sensor coupled to a housing of a pump for obtaining acoustic data therefrom. A proximity switch may be simultaneously used to keep real time timing information relative to the cycling of the pump. A data p... | 07/22/2008 |
| 7401624 | Method for monitoring a pipeline and position regulator for a control valve The invention relates to a method for monitoring a pipeline in order to detect the slow reduction of the free inner cross-section by means of the position of a control valve in the pipeline. When the flow rate is essentially constant, a first position is determined ... | 07/22/2008 |
| 7380452 | Method of determining fuse parameters for a mechanical fuse in a gas compressor A method of determining fuse parameters in a reciprocating gas compressor ensures a safe failure upon exceeding an overload limit. Stresses and bolted joint behavior for critical components in compressor running gear are evaluated using a finite element analysis. Ca... | 06/03/2008 |
| 7367229 | Liquid flow regulating device and dynamometer testing device The present invention relates to a regulating device (1) for control of flow and/or pressure, including a housing (3) enclosing a movable inner member (2) which is provided with a passage corresponding to the housing inlet. The inlet comprises a... | 05/06/2008 |
| 7363807 | Pump testing apparatus and method A pump testing apparatus includes a support structure having a first passageway having an inlet, an outlet, and an opening for receiving a pressure gauge, and a second passageway having an inlet, an outlet and an opening for receiving a vacuum gauge; a pressure gaug... | 04/29/2008 |
| 7362066 | Overload protection system An overload protection system and method of protecting a drive unit includes a torque arm assembly mounted to a fixture and a gear reducer. The reducer includes a bracket mounted to an axle of the reducer which is positioned adjacent to a measuring device. The torqu... | 04/22/2008 |
| 7356399 | Failure determination system for stepless speed changer and failure determination device for start clutch There is provided a failure determination system for a continuously variable transmission of a belt type, which is capable of determining failure of control valves for performing speed varying operation, and enhancing maintainability. An ECU controls a transmission ... | 04/08/2008 |
| 7347083 | System and method for detecting a leak in a hydraulic fluid system Methods, systems, and articles of manufacture consistent with the present invention provide for detecting a leak in a hydraulic fluid system having a reservoir and a conduit operatively connected to the reservoir. The fluid may reside in the reservoir, the conduit, ... | 03/25/2008 |
| 7343792 | Method and apparatus for inspecting operation condition of pump A circuit is used which includes: first and second channels having first and second input ports, respectively, and a third channel having an end where the first and second channel meet and are connected to the third channel. A first liquid to the first input port is... | 03/18/2008 |
| 7330807 | Method, computer program product and computer system for the automatic production of a filter unit The invention relates to a method for the automatic production of a filter installation that consists of a plurality of structural parts or elements. The inventive method comprises the following steps: choosing a field of application of the filter installation to be... | 02/12/2008 |
| 7321846 | Two-wire process control loop diagnostics A diagnostic device for coupling to a process control loop includes digital communication circuitry configured to receive a digital communication signal from the process control loop. The digital communication signal is a digitally modulated analog signal on the pro... | 01/22/2008 |
| 7302842 | Method and device for measuring a path that has been covered A displacement measuring device measures a path of a moving object that can be displaced in a direction has at least one first component that is allocated to the moveable object and a second, stationary component. The components are interlinked for the purpose of co... | 12/04/2007 |
| 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 |
| 7287423 | Method and device for control of the capacity of a compressor A method and device for evaluating the capacity of a compressor (1) by air being allowed to flow out from a pressure tank (3) through an opening of known geometry. Following a calculation, the quantity of evacuated air is obtained. After this, a compre... | 10/30/2007 |
| 7280219 | System for monitoring sealing wear A system for determining at least one condition of a seal including an optical fiber for transmitting light from a light source. The optical fiber is embedded in the seal and operatively coupled to an interferometric system. The interferometric system is operatively... | 10/09/2007 |
| 7272531 | Aggregation of asset use indices within a process plant A method of monitoring an entity within a process plant wherein the entity includes a plurality of lower level entities, includes acquiring a plurality of use indices, acquiring a plurality of weighting values, and creating an aggregate use index from a combination ... | 09/18/2007 |
| 7270010 | System and method for pressure measurement A pressure measurement system may provide ready manufacturing, reliable operation, and/or enhanced performance by using a circuit board housing. In particular implementations, a pressure measurement system includes a pressure inlet joint, a pressure detecting compon... | 09/18/2007 |
| 7264573 | Automatic transmission control apparatus having diagnostic function An automatic transmission control apparatus controls a gear position by engaging and disengaging multiple frictional elements. A hydraulic pressure detector detects hydraulic pressure applied to the frictional elements. A failure determiner determines a failure, i.e... | 09/04/2007 |
| 7254988 | Method and apparatus for testing pulsatile endurance of a vascular implant A method for testing the pulsatile endurance of a vascular implant 3 comprises placing a resilient insert 4 into the implant and repeatedly expanding and contracting the insert, thereby expanding and contracting the implant. The insert preferably has a... | 08/14/2007 |
| 7257523 | Integrated distributed process control system functionality on a single computer An apparatus is adapted to be used to create software and programming instructions for a distributed process control system having a user workstation remotely located from a distributed controller that controls one or more field devices using control modules. The ap... | 08/14/2007 |
| 7254518 | Pressure transmitter with diagnostics In one embodiment, a pressure transmitter is provided which diagnoses the condition of a primary element and/or an impulse line which connects to a pressure sensor. A difference circuit coupled to the pressure sensor has a difference output which represents the sens... | 08/07/2007 |
| 7246532 | Flow indicator and apparatus for monitoring particles in air A flow indicator comprising a housing and a floater and adapted to draw an air sample is provided. The housing has at least one lower inlet port, an interior space, an upper outlet port, and a transparent window. The floater is disposed inside the housing and is ada... | 07/24/2007 |
