Matches 101 - 150 out of 420 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
6058958 Pulsatile flow system and method  
The present invention relates to a pulsatile flow system and method. The pulsatile flow system includes a reservoir, a pressure riser and a first fluid passage connected between the reservoir and...
6021667 Automated work station apparatus and method  
An automated work station for testing hydraulic equipment having first hydraulic input and output ports comprising in combination a test cabinet and associated input keyboard and test data display...
6006603 Compressed air maintenance device  
Besides the individual modules (1', 1'"), a compressed air maintenance device consisting of individual easily interchangeable modules (1), e.g. pressure regulators, oil atomisers (1'"), condensate...
5992229 Method and equipment for determining the performance of control valve  
A method for determining the performance of a control valve in a closed control loop by using a simulation model. A simulation model of a process control loop is provided, consisting of a unit...
5966679 Method of and apparatus for nonobtrusively obtaining on-line measurements of a process control device parameter  
An apparatus for nonobtrusively determining one or more parameters, such as dead band, dead time, or response time of a process control device that is connected on-line in a process control loop...
5931044 Torque/position transducer  
A torque/position transducer is positioned between the valve stem of a valve and a valve operator and includes a body section including an input lug mated with the output lug of the valve operator...
5911785 Test fixture and method of testing a spin rinse dryer and components thereof  
A test fixture and method emulate the inputs and/or outputs to a controller and motor of a spin rinse dryer to permit selective testing of the controller and/or motor thereof. In some instances,...
5887478 System for developing laminar flow  
A flow conditioning system includes a flow randomizing section for receiving an input fluid stream and for increasing the uniformity of the streamwise velocity components of the input fluid stream...
5857500 System and method for testing for error conditions in a fuel vapor recovery system  
A vapor recovery system used with fuel dispensers and having error detection capabilities incorporated therein for detecting vapor leaks and performance deficiencies in the vapor recovery system....
5836567 Apparatus for continuous detection of load in an electric valve actuator  
In an electric valve actuator, an apparatus is provided for preventing overload of a motor by continuously detecting the torque of the motor as a prime mover. The apparatus includes a valve stem...
5787937 Method for monitoring the proper functioning of electromagnetic air valves in pneumatic looms  
A method for monitoring the functional reliability of magnetic valves in pneumatically operated systems of an air jet loom, such as the valves for the relay nozzles, allows the failure of such a...
5773981 Method of detecting linear solenoid inter-terminal short of electronic control type automatic transmission  
A short between terminals of a linear solenoid controlled by an electronic control in an automatic transmission is detected by sensing when a PWM duty ratio set by a feedback control operating the...
5770796 Failure diagnosis device for a fuel pump  
This device diagnoses whether or not a fuel pump which supplies fuel to an engine has failed. The pump includes a plurality of pressure chambers which in turn discharge fuel according to the...
5747697 Valve stem thrust measuring device  
A strain gage device that includes a split collar having a pair of hinged half sections arranged to close in pressure contact against a structural member bearing a strain inducing load. Each half...
5743133 Load detectable valve  
In a valve used in a nuclear power plant, a valve body from which a valve stem projects upwards is connected with a valve drive device for driving the valve stem by a hollow cylinder which is...
5745043 Indicator junction module for pressure washer  
An indicator junction module for connecting the electrical components of a pressure washer for dispensing a cleaning fluid under pressure. The indicator junction module includes terminal connectors...
5713240 Method and apparatus for automatic remote testing of backflow preventers  
An apparatus and method for automatic and remote testing of check valves and backflow preventers. Pressure sensors have ports in communication with chambers upstream and downstream from a check...
5694808 System for testing the function of a hydraulic device  
A system for testing the operability of hydraulic devices, in particular pumps, by way of a compressible medium, for example air. In addition, the testing method disclosed permits tracing other...
5695092 Fluid flow measuring system  
In a treatment system for feeding a liquid from a tank having an outlet by a controllable pump operated cyclically, an automatic calibration/measuring system. The system is arranged for determining...
5687098 Device data acquisition  
Data samples are obtained from a control device while in use to control a material process. Selected ones of these samples are stored which represent results of operating the device over portions...
5671730 Gas mask with electronic blower control  
The invention relates to a method for regulating the rate of air fed into a gas mask, as well as to a gas mask. The power of the gas mask blower is regulated on the basis of the current and...
5671635 Method and apparatus for monitoring of spring pack displacement of a motor-operated valve  
A system for measuring spring pack displacement of a motor-operated valve (MOV) includes at least one power line having a current. The system includes a current sensor for sensing the current and...
5665898 Method and apparatus for testing solenoids in a safety system by bypassing the solenoid operated pilot valve  
A method and apparatus are disclosed for testing the operation of solenoids in a safety system by bypassing the solenoid operated pilot valve and applying a pneumatic control source to the system...
5662139 Pressure relief valve with lockout position  
A lever actuated pressure relief valve useful at the base of a gridded sprinkler system to perform three functions. The first function is as a pressure relief valve for the sprinkler system, the...
5649449 Method and apparatus for determining the instantaneous operation conditions of a centrifugal pump  
In the disclosed method of determining the current or instantaneous operating conditions of a centrifugal pump, the radial forces impressed on the impeller shaft by the operatively rotating pump...
5644948 Control valve with a drive operated by a pressure medium and a position controller  
An apparatus and process for monitoring conditions of a control valve including a valve element operated by a drive controlled by a position controller. A spindle extends into a valve chamber...
5628229 Method and apparatus for indicating pump efficiency  
An apparatus for indicating efficiency losses in a pump is provided. The apparatus includes a temperature sensor located at the pump input, a second temperature sensor located at a second location,...
5594175 Apparatus and method for non-invasive diagnosis and control of motor operated valve condition  
An apparatus compares the torque from an MOV motor with the valve displacement, and from the comparison assesses MOV operating condition. A transducer measures the vibration of the housing of an...
5589633 Method and apparatus for measuring pumping rod position and other aspects of a pumping system by use of an accelerometer  
An oil well pumping unit has a walking beam which raises and lowers a rod connected to a downhole pump. To perform well analysis, it is desirable to know the position of the rod during the stroke....
5579659 Method for testing a spring pack of a motor operated valve  
A method and apparatus for testing a spring pack of a valve operator, the apparatus including a hollow housing with a coupling for attaching to the valve operator. A slider is received within the...
5548997 Apparatus for applying a known axial force to a valve stem  
Method and apparatus for simulating operating conditions on a motor operated valve. The present invention provides a means for simulating actual operating load conditions, such as a simulated...
5546817 Stem torque sensor  
A strain sensor device is attached to a cylindrical structural member for measuring the amount of twist of the member about an axis of rotation and includes a central beam, which is aligned...
5548210 System and procedure for the check-up solenoid valves  
The invention refers to a system for the technical safety check of solenoid valves, where during an operational switch of the solenoid valve, the induction current of the actuating magnet of the...
5533410 Motor power measuring cell for motor operated valves  
Disclosed is apparatus and a system for measuring and monitoring the actual mechanical power being produced by an electric motor and measuring and monitoring the reactive torque acting on and the...
5531094 Apparatus for testing prosthetic heart valve hinge mechanism  
An apparatus for proof testing mechanical heart valve prostheses. The apparatus also provides an in vitro test environment simulating in vivo loads, providing a function test. If the heart valve...
5524485 Torque/position transducer  
A torque/position transducer is positioned between the valve stem of a valve and a valve operator adapted to open and close the valve and includes a body including an input lug adapted for mating...
5524484 Solenoid operated valve diagnostic system  
Disclosed is a diagnostic system for measuring and monitoring selected operating parameters of a solenoid operated valve. The valve assembly, comprised of a valve body, a valve plug attached to a...
5499530 Pneumatic tester for engine oil pumps  
A pneumatic apparatus to test an engine oil pump of the type designed to be driven by an end of the engine crankshaft. On a test stand, the pump is rotated by a driving mechanism while airflow is...
5492009 Method and apparatus for testing a valve actuated by an electromagnet having an armature  
A method for testing a valve being driven by an electromagnet having a electromagnet armature, includes determining a value of current in the electromagnet as a response current, at an instant when...
5492455 Pumping apparatus including a quick connect interface  
A pump includes a quick connect interface that attaches to any drink dispensing to allow the mounting of the pump without the necessity of connection devices such as threaded fittings and/or...
5490766 Precision small displacement fluid pump  
A fluid pump for displacing a small, precise volume of fluid for each pump stroke, particularly where the fluid to be displaced is a liquid containing dissolved gas. The precise volume of fluid to...
5488860 Apparatus for determining the position of a piston in a fluidic actuator  
Apparatus for determining the position of a piston in a hydraulically or pneumatically operated actuator including a fixed position, rotatable shaft having a pair of attached pins, each pin off-set...
5487302 Method and system for measuring gate valve clearances and seating force  
Valve clearances and seating force, as well as other valve operational parameters, are determined by measuring valve stem rotation during opening and closing operations of a translatable gate...
5479818 Process for detecting fouling of an axial compressor  
A process and device for detecting fouling of an axial compressor by measuring of pressure fluctuations within at least one of the stages of said compressor in the region of the compressor housing...
5475299 Method for remotely determining operability of motor operated valves  
A method is disclosed for determining operability of a motor operated valve combination including a valve having a valve stem, a valve disc, a valve seat, and a motor operator having a motor drive...
5469737 Method and apparatus for measuring the axial load and position of a valve stem  
A method and apparatus for measuring and monitoring the axial load or thrust on the valve stem of an air operated valve assembly. The top end of the valve stem is connected to bottom end of the...
5461903 Apparatus and method for detecting leak in hydraulic system  
An apparatus and method for detecting a leak in a closed, fluid transfer system, specifically a hydraulic system, by comparing the actual rate of fluid level change in the fluid reservoir to the...
5457640 Method of checking condensate dischargers  
Method of testing the functionality of condensate dischargers. Any ultrasonic vibrations present in the condensate discharger are picked up with an ultrasonic vibration sensor and transformed into...
5454273 Motor operated valve actuator diagnostic system and test stand  
Disclosed is apparatus and a system for the diagnostic testing of a valve actuator used in an electric motor operated valve that is able to induce a variety of actively controllable and adjustable...
5442957 Calibration technique for production mass air flow sensor flow stands  
A mass air flow sensor calibration air flow stand is tested during production by substituting a nozzle supplying a predetermined amount of air flow for a mass air flow sensor in the production...
Matches 101 - 150 out of 420 < 1 2 3 4 5 6 7 8 9 >