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| Number | Title | Issue Date |
| 7983869 | Flow testing system for fluid networks A flow testing system comprises a flow unit for interfacing with a flow hydrant, a pressure unit for interfacing with a test hydrant, a transmitter in a first one of the units to transmit data to a second one of the units, a receiver in the second unit to receive da... | 07/19/2011 |
| 7945414 | Method for detecting abnormality in fluid supply line using fluid control apparatus with pressure sensor A method for detecting abnormality in a fluid supply line is provided that uses a fluid control apparatus with a pressure sensor so that abnormality of malfunction and sheet leaks of a plurality of valves incorporated into the fluid supply line can be checked easily... | 05/17/2011 |
| 7941290 | Method for error containment and diagnosis in a fluid power system In a method for error containment and diagnosis in a fluid power system the fluid volumetric flow in the overall system or at least a part thereof and the fluid pressure (P) is detected as a measurement quantity in each case during a duty cycle and is compared with ... | 05/10/2011 |
| 7917325 | Method for error containment and diagnosis in a fluid power system In a method for error containment and diagnosis in a fluid power system the fluid volumetric flow of the overall system or at least a part thereof or a quantity dependent thereon is detected as a measurement quantity respectively during an operating cycle and is com... | 03/29/2011 |
| 7917324 | Flow testing system for fluid networks An apparatus, system, method and kit for testing fluid flow and pressure is provided. The apparatus, system, method and kit include or include the use of a flow unit which is configured to measure flow rate and/or flow velocity when interfaced with a flow valve or h... | 03/29/2011 |
| 7797122 | Electrohydraulic valve control circuit with velocity fault detection and rectification Motion of a hydraulically driven machine component is controlled in response to a velocity command that indicates a desired velocity for the machine component. A method for detecting a velocity fault involves determining an actual velocity at which the machine compo... | 09/14/2010 |
| 7613584 | Methods, systems and computer program products for automatically detecting leaks in a hydrant fuel piping system Methods, systems, and computer program products for automatically detecting leaks in a type III hydrant fuel piping system is described. In one embodiment, the method includes automatically actuating one or more valves to isolate a hydrant loop of a type III hydrant... | 11/03/2009 |
| 7457716 | Control module arrangement and compressed air maintenance unit A control module arrangement for a compressed air maintenance unit constructed like a battery and a compressed air maintenance unit, which has several maintenance modules in a row one after the other, wherein the control module arrangement has a bus interface for co... | 11/25/2008 |
| 7444254 | Valve timing control apparatus of internal combustion engine A valve timing control apparatus is adapted to an exhaust valve side of an internal combustion engine. A vane member is arranged to rotate with a camshaft relative to a timing sprocket member. The vane member is rotated at low speed engine operation dominantly by a ... | 10/28/2008 |
| 7415376 | Valve tester control enhancements A valve tester system is disclosed that comprises a valve tester assembly for rotating a valve stem of a valve. The valve tester assembly may include a support, a rotation element mounted on the support for rotating a valve during a rotation event, a control element... | 08/19/2008 |
| 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 |
| 7313497 | Valve monitoring method and arrangement A method and apparatus or arrangement, for monitoring the operating characteristics of valves, principally to monitor for failure of a valve. The method including measuring a pressure differential across a valve 1 and comparing the measured differential with ... | 12/25/2007 |
| 7266467 | Method to calibrate hydraulic flow valves in situ A method for performing system characterization in situ for a system comprising a actuator controlled by a proportional controller. The system includes a quasi-linear region characterized by a slope of the system response and by a delay in the quasi-linear region of... | 09/04/2007 |
| 7257522 | Simulator for automatic vehicle transmission controllers A simulator comprising computer-aided design programs for simulating a shift control algorithm stored in an ECU of an automatic transmission having hydraulic clutches. In the simulator, a simplified hydraulic model describes the entire system so as to design a third... | 08/14/2007 |
| 7254508 | Site loops A method for use with a test system having sites that hold devices under test (DUTs) includes executing a first site loop to iterate through the sites, where the first site loop includes an instruction to program hardware associated with at least one of the sites, a... | 08/07/2007 |
| 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 |
| 7216019 | Method and system for a mass flow controller with reduced pressure sensitivity Systems and methods for mass flow controllers which minimize false flow conditions and display a reduced sensitivity to pressure transients are disclosed. Pressure gradients that exist within the volume of a mass flow controller fluid path are minimized in order to ... | 05/08/2007 |
| 7203615 | Switched flight test installation with a “packet” type data format A flight test installation system for collecting aircraft data includes a sensor level configured to convert aircraft physical inputs into plural measurable electrical parameters, an acquisition level configured to perform at least one of an analogue, discrete or di... | 04/10/2007 |
| 7191084 | Method and apparatus for gas turbine engine ignition systems A method for testing an igniter coupled within a gas turbine engine, wherein the gas turbine engine includes a combustor, a pressure transducer coupled to the combustor, and a spark detector. The method includes operating the gas turbine engine, monitoring the opera... | 03/13/2007 |
| 7174263 | External volume insensitive flow verification A flow verifier for in-situ verification of a device under test (DUT), including an inlet connectable to a DUT, an outlet connectable to a vacuum pump for drawing gas through the DUT and the flow verifier, a vessel having a predetermined volume, diffusive media conn... | 02/06/2007 |
| 7133796 | Smart resolution valve pressure control The Smart Resolution Valve Pressure Control System allows any pressure control system using valve state pulsing to modify airflow at an optimum and consistent range of operation thereby enhancing control accuracy and increasing the useable cycle life of any valve co... | 11/07/2006 |
| 7130769 | Method of dynamically designing a preventative maintenance schedule based upon sensor data, and system for accomplishing same In one example, the method includes operating a process tool that has a plurality of sensors for sensing at least one parameter associated with the operation of the process tool, obtaining data from the sensors and determining at least one maintenance activity for t... | 10/31/2006 |
| 7124039 | Device comprising detecting means for hydraulic or chemical-physical properties of a fluid A device has a body defining a space for the passage of a fluid, as well as a detector of a hydraulic or chemical-physical property of the fluid in the space. The detector is connected to a control unit by means of a wireless communication system that includes a dat... | 10/17/2006 |
| 7110926 | Universal spring mechanism for automobile suspension system design A method for determining coil spring force line range corresponding to specific damper friction values using a universal spring mechanism and using the determined force line range in coil spring design. The method includes securing the mechanism to a suspension syst... | 09/19/2006 |
| 7092834 | Method for determination and representation of adjustment steps for an apparatus requiring adjustment In a method for determination and representation of adjustment steps for operation of an apparatus requiring adjustment, such as a diagnostic imaging apparatus, the implementation of manual adjustments by a user is supported. The method determines which adjustment s... | 08/15/2006 |
| 7089134 | Method and apparatus for analyzing gas flow in a gas panel One embodiment of the present invention is a method for analyzing gas flow in a gas transmission unit of a gas panel that includes: (a) monitoring a measure of gas flow output from a mass flow controller included in the gas transmission unit; (b) monitoring a measur... | 08/08/2006 |
| 7054777 | Test device and method for testing a rail car brake system The present invention discloses and claims a test device and method for testing a rail car brake system. The test device includes a pneumatic circuit and electronic circuit connecting a supply of test air to the rail car brake system being tested. The pneumatic and ... | 05/30/2006 |
| 7050937 | Performance measurement system A performance test system includes a measuring device to measure an object device, and a computing device having a controller to test performance of the object device based on measured data transmitted from the measuring device, wherein the controller controls to di... | 05/23/2006 |
| 7043975 | Hydraulic system health indicator A method and apparatus for determining the operating health of a hydraulic system are provided. The method may include the steps of determining a plurality of operating parameters of the hydraulic system during operation of the hydraulic system, determining an estim... | 05/16/2006 |
| 6955072 | System and method for in-situ flow verification and calibration A system and method for in-situ verification and calibration of flow control devices includes a first network physical layer connecting the flow control devices to a flow verification device. A controller of the flow verification device is programmed to communicate ... | 10/18/2005 |
| 6954683 | Method and apparatus for performing diagnostics in a control loop of a control valve Method and apparatus for performing diagnostics in a pneumatic control loop for a control valve. Pressure and displacement sensors normally provided with a positioner are used to detect operating parameters of the control loop. A processor is programmed to receive f... | 10/11/2005 |
| 6944576 | Factory automation control method A factory automation method includes setting of all devices for a process unit to be carried out on a computer. The method includes constituting and setting various devices for a process unit on a computer display, grouping the devices into a transfer line, a heatin... | 09/13/2005 |
| 6920409 | Apparatus for testing operation of an emergency valve Apparatus for testing an emergency valve in which a valve member (10) is movable by fluid-operated actuator (11) between a normal (open or closed) position and an emergency position (closed or open respectively). The apparatus comprises partial strokin... | 07/19/2005 |
| 6907383 | Flow diagnostic system A flow diagnostic system for a flow sensing element and impulse lines. A pressure transmitter coupled to the impulse lines provides digital pressure data to a control system. The control system provides the pressure data and real time clock readings to a diagnostic ... | 06/14/2005 |
| 6901341 | Smart resolution valve pressure control The Smart Resolution Valve Pressure Control System allows any pressure control system using valve state pulsing to modify airflow at an optimum and consistent range of operation thereby enhancing control accuracy and increasing the useable cycle life of any valve co... | 05/31/2005 |
| 6862547 | Control device test system with a remote switch activation A control device test system including an electrical switch and a device controller, wherein the device controller has a processor, a memory coupled to the processor, and an auxiliary input coupled to the processor and adapted to receive a binary signal from the ele... | 03/01/2005 |
| 6829551 | Test device for filter systems, method for testing filter systems, and computer program therefor A test device (10) for filter systems comprising at least two test units (14), a management unit (12) for managing and controlling the at least two test units (14), and signal links via a bi-directional or multi-directional network (16... | 12/07/2004 |
| 6807501 | Dynamic relative load rate for fluid systems Loading of one fluid control device with respect to other fluid control devices in a fluid system is evaluated by a Dynamic Relative Load Rate [DRLR] variable that is common to each devices. DRLR methods compare the relative performances of multiple fluid control de... | 10/19/2004 |
| 6799132 | Smart resolution valve pressure control The Smart Resolution Valve Pressure Control System allows any pressure control system using valve state pulsing to modify airflow at an optimum and consistent range of operation thereby enhancing control accuracy and increasing the useable cycle life of any valve co... | 09/28/2004 |
| 6775636 | Automated testing of hybrid actuator There is provided a testing apparatus (200) for a hybrid indicator lens and potentiometer actuator (100). The hybrid actuator (100) serves both as a knob for a potentiometer (120) and as a lens to convey light from an indicator arrangemen... | 08/10/2004 |
