Matches 51 - 100 out of 420 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
6810910 Valve and arrangement for fire suppression system  
A valve and valve arrangement for a fire suppression system includes a remotely controlled valve such as a solenoid valve which is electrically controlled to provide a preselected flow through the...
6807855 Methods for testing fluid compressors  
A flow meter including at least one flow valve used to performance test system compressors is described. The flow meter includes a pressure vessel including at least one exit port. A flow valve is...
6807875 Self-compensating position sensor  
A position sensor and a method for sensing a position of a moveable member includes at least first and second deflectable members arranged so as to allow the moveable member to pass therebetween...
6776584 Method for determining a centrifugal pump operating state without using traditional measurement sensors  
A method for determining whether a centrifugal pump is operating within its normal flow operating range includes the steps: of determining a motor torque/TDH relationship over a range of speeds for...
6761063 True position sensor for diaphragm valves  
An arrangement for measuring the true position of a diaphragm within a diaphragm valve assembly utilizes a thin conductive element disposed in the valve between the diaphragm membrane and the...
6729848 Sensor mount for sump draining apparatus  
A sump draining apparatus having an pressure transducer engaged in a receptacle that is in turn engaged in an open-ended collar of a housing. The receptacle and thus the pressure transducer is...
6694803 Method and system for determining the actuating pressure of a servo cylinder actuated by pressurized fluid  
A method and system for determining the actuating pressure of a servo cylinder that is actuated by pressurized fluid. The actuation displacement of the servo cylinder is obtained from a sensor or...
6681802 In-line valve arrangement for fire suppression water sprinkler system  
A valve arrangement for use in a fire suppression sprinkler system includes a valve member for controlling the flow of a fluid. The valve member has a housing having an inlet and an outlet. The...
6675110 Testing valve assemblies  
A method of determining flow through a valve includes determining a first differential pressure across the valve. The valve is bypassed and a second differential pressure is determined across the...
6671641 Method for calibrating hydraulic actuators  
A method for calibrating hydraulic actuators includes installing an actuator in a test stand and performing an electrical signal sweep to obtain a series of pressure values. Based on desired...
6648606 Centrifugal pump performance degradation detection  
A method for determining whether a centrifugal pump is degraded as operating outside of acceptable operating limits and includes the steps of determining a motor torque/TDH relationship over a...
6634224 Method for the determination of the pressure in and/or of the through-flow through a pump  
In the method for the determination of the pressure (p) in and/or of the through-flow (Q) of a liquid through a pump having at least one magnetic bearing for the axial journaling of the pump rotor...
6626036 Clutch fill rate calibration apparatus and method  
A system for calibrating the fill times of clutches using a pressure transducer service tool includes attaching the tool to an electronic controller on the vehicle and the a clutch hydraulic fluid...
6619112 Apparatus for testing the ability of a filter to filter contaminants  
The present invention is directed towards an apparatus for testing hydraulic components. The apparatus includes a test fixture for housing a hydraulic component to be tested, a first fluid...
6619111 Method and device for monitoring performance of internal pump  
A method for monitoring the performance of internal pumps in a plant in which a coolant is driven through plural internal pumps, said method comprising measuring the pump motor power input to the...
6571180 Self-contained steam trap monitor  
A self-contained system to continuously monitor a mechanism used to process, control or regulate fluid flow or pressure and provide a continuing indication of the status or condition of the...
6564627 Determining centrifugal pump suction conditions using non-traditional method  
A method for determining the suction pressure of a centrifugal pump including the steps of determining pump torque and pump discharge pressure at at least two different speeds, forming a first...
6536271 Pump with integral flow monitoring  
A centrifugal pump for transporting fluid with a housing, an impeller and a plurality of pressure sensors. Disposed within the housing is a volute section defined by a circumferential path through...
6530277 Diagnostic system for a valve that can be actuated by a position controller via a drive  
A diagnostic system for a valve ( 2 ) that can be actuated by a position controller via a drive. The diagnostic system includes a device ( 14 ) provided for recording, storing, and evaluating, body...
6520008 Hydraulic movement measuring system  
A system for measuring the distance of a hydraulic movement including an engine supplying power, a hydraulic cylinder for supplying hydraulic movement, and a pump coupled to the hydraulic cylinder...
6502458 Method for checking the operational readiness of a valve  
A method for checking the operational readiness of a valve determines at least one measured value for a valve-specific parameter and compares it with a previously fixed value. The measured value is...
6491056 Sprinkler alarm test and drainage device for fire protection systems  
A combined alarm test and drain device for a fire protection sprinkler system is disclosed. The apparatus is based on a globe valve and has certain specific modifications for the purposes of...
6487903 Method and system for determining pump cavitation and estimating degradation in mechanical seals therefrom  
A method and system for determining pump cavitation is disclosed. In accordance with the principle of the invention, changes in dynamic fluid pressure within a pump are monitored and compared to a...
6463949 Method and apparatus for determining a valve status  
The present invention provides a method and apparatus for detecting a status of a valve, the valve being connected to a fluid circuit. The method includes the steps of establishing an expected...
6466893 Statistical determination of estimates of process control loop parameters  
A method and apparatus statistically determines estimates of one or more process control loop parameters, such as bearing friction, seal friction, total friction, dead band, dead time, oscillation,...
6450048 Hydraulic cylinder monitoring apparatus  
A hydraulic cylinder monitoring apparatus of a type having a tube with a first end and a second end and a removable first cap member for selectively closing the first end of the tube, the first cap...
6450023 Method and apparatus for air testing pumps  
A method and apparatus for determining the efficiency of a liquid pump using air as a test medium. The method includes determining the total power output of the pump operated on air and determining...
6439047 Method and arrangement for mechanically testing the valve disk of ceramic valves  
A method and an arrangement for testing valve disks of ceramic charge cycle valves for internal-combustion engines is provided. Two stressing rollers are pressed against a radially outer section of...
6435022 Partial stroke testing system  
A partial stroke testing system for online testing of emergency shut-off valve, said system is designed for implementation on an emergency shut-off valve with a main solenoid with manual reset,...
6422057 Drug pump testing system and methods  
A drug pump testing system and method comprise a pump control module having tube engaging members, with the pump control module coupled to a calibration cassette. The calibration cassette houses a...
6397655 Auto-calibration of a solenoid operated valve  
Operation of an electrically operated valve is calibrated by applying a gradually increasing electric current to the valve. While that is occurring pressure at either the inlet or outlet of the...
6386229 Method and device for managing operation of solenoid valve  
The present invention aims to permit an easy and reliable predicting of abnormality of a solenoid valve before failure, by detecting operating times of the solenoid valve and discriminating, from...
6360773 Methods for monitoring wear in seat materials of valves  
Systems and methods are discussed that monitor wear in seat materials of a valve. One aspect of the present invention includes a system. The system includes sensors to sense the open/closed status...
6318167 Volumetric test stand cylinder monitor/controller  
A test device and a process for determining the accuracy of positive displacement gear pumps includes hydraulic cylinders which are fluidly connected to the output fluid flow(s) from a test pump....
6282947 Arrangement for monitoring the useful properties of fluids  
An arrangement monitors the useful properties of pressure fluids (5) in fluid-technical installations. A plurality of measured variables, each representing a useful property of the pressure fluid,...
6267138 Method and means for monitoring a control apparatus  
The invention relates to a method and means for monitoring a control apparatus having at least one actuating drive, a valve, a spindle, and a positioner, whereby a reversal of direction of a valve...
6263913 Hydraulic multiway valve  
6250130 Method and apparatus for monitoring an aspirating and dispensing system  
A pump system and method for controlling and monitoring the aspiration of a liquid and the subsequent dispense of the liquid. As a pump is operated to either aspirate or dispense a liquid, a...
6240789 Permanently instrumented actuated valve assembly, with internally-gauged, permanently instrumented shaft  
A permanently instrumented actuated valve assembly includes at least one internally-gauged, permanently instrumented shaft functioning as a load bearing component through which an actuator drives a...
RE37151 Method and apparatus for testing a fluid pressure apparatus  
A method and apparatus for testing and filling hydraulic assemblies such as a hydraulic clutch control assembly for a motor vehicle. A conduit is placed in communication with a pressure chamber of...
6205853 Method for testing functions of painting apparatus and apparatus for the same  
A painting device functional testing apparatus for testing functions of painting devices of a painting apparatus comprises the same devices as the painting apparatus and a paint supply system...
6196262 Valve for testing and draining sprinkler systems  
Valve for testing and draining sprinkler systems comprises a half-body with an inlet channel and a half-body with an outlet channel which define a housing chamber which houses the valve shutter and...
6164933 Method of measuring a pressure of a pressurized fluid fed through a diaphragm pump and accumulated in a vessel, and miniature pump system effecting the measurement  
A method and system for determination of a pressure of the pressurized fluid with the use of a diaphragm pump responsible for accumulating the pressurized fluid in the vessel. The pump has a pump...
6131609 Method for surveying the condition of a control valve, and a valve apparatus  
A method and a valve apparatus for surveying the condition of a control valve. The position of the valve (101) is adjusted by means of an actuator (103) controlled by an electropneumatic positioner...
6125868 Method and apparatus for maintaining valves in a water distribution system  
A method and apparatus for maintaining valves in a water distribution system is the subject matter. A description is prepared of each valve in the system. An individual identifying symbol is...
6119515 Method and apparatus for monitoring actuators  
A method and apparatus for operational monitoring of an actuator, which has a drive force unit that requires a characteristic time for build-up of the force, the apparatus including at least one...
6087945 Pump failure alarm system for hydraulic working machine  
A pump failure alarm system which is provided in a hydraulic working machine comprising hydraulic pumps driven by a prime mover, delivery lines joining with one another into one common delivery...
6085585 Sprinkler performance evaluation system  
In a sprinkler effectiveness testing system, a fire plume to simulate a burning warehouse commodity storage array is generated. The sprinkler system to be tested is suspended from an adjustable...
6073650 Valve with actuator whose functional capability can be monitored  
Valve with an actuator which consumes power from an energy source and which comprises a device capable of detecting that the actuator is operating the valve, a first sensor for measuring a value...
6062075 Proof testing of mechanical heart valves  
A method and apparatus for proof testing an assembled mechanical heart valve prosthesis having a valve body and at least one movable occluder wherein at least one of the components has a surface of...
Matches 51 - 100 out of 420 < 1 2 3 4 5 6 7 8 9 >