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7606636 |
Methods for managing flow control valves in process systems
Methods for managing the operational condition of flow control valves in process systems. As a control valve experiences mechanical wear during operation, the physical changes to the valve can...
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7603186 |
Adaptive response time closed loop control algorithm
A system and method for controlling a flow of a fluid using an adaptive closed-loop-control algorithm is described. One embodiment includes a method for receiving a set point indicator and/or a...
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7594541 |
Pump control for formation testing
A downhole formation fluid pumping and a sampling apparatus are disclosed that may form part of a formation evaluation while drilling tool or part of a tool pipe string. The operation of the pump...
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7590471 |
Intelligent sprinkler irrigation system
The present invention features an intelligent sprinkler irrigation system for delivering fluid to an arbitrarily-shaped area in a precise manner. In general, the system comprises (a) a fluid source...
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7584022 |
Method for controlling fluid flow in a rotational atherectomy device
A method system and controller for controlling fluid flow in a rotational atherectomy device. A source of fluid is provided through a pump to the rotational atherectomy device, wherein the pump...
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7574284 |
Method and apparatus for optimizing soil moisture
A self-adjusting irrigation controller takes a pre-irrigation soil moisture reading prior to irrigation, chooses an amount of water to be dispensed corresponding to that reading from a table, and...
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7569809 |
Flow-drive for dynamic phantom
Apparatus and method for simulating tracer interaction with living tissue. A chamber receives a fluid therein, and includes an inlet conduit for conducting the fluid into the chamber, an outlet...
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7561928 |
Method for the automatic optimization of a natural gas transport network
The method of automatic optimization is applied to a natural gas transport network in the steady state comprising at one and the same time a set of passive works such as pipelines or resistances,...
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7558649 |
Method for predicting airflow rates
In a method for predicting an airflow rate of at least one air delivery device, a plurality of airflow rates through the at least one air delivery device at a plurality of airflow rates of at least...
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7556246 |
Unloading method of object, program storage medium, and mounting mechanism
There is provided a method for unloading an object vacuum-chucked on a mounting table having one or more gas flow paths opened at one or more locations on the mounting table, including the steps of...
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7541766 |
System and method for the intelligent use of software deadband control in a control system
In accordance with one embodiment of the invention a control system for controlling performance of a device is provided. The control system includes a controller system and a deadband compensator...
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7539560 |
Control valve and positioner diagnostics
Valve positioning systems may include one or more components and a controller. Components may include one or more electric-to-pressure output converters, relays, gas supplies, and/or actuators. A...
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7539548 |
Smart-control PLC based touch screen driven remote control panel for BOP control unit
The present invention relates to a device for controlling the Blow out preventer (BOP) used in well drilling operations comprising: BOP control unit, master control panel connected to the BOP unit...
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7534099 |
Aliquot correction for feeding set degradation
A peristaltic pump is able to deliver accurate volumes over the life of a pump set that is operated on by the pump to drive the flow of fluid. The pump delivers fluid in small volumes or aliquots....
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7533682 |
System and method of providing water flow rate compensation
A system and method of flow rate compensation is provided to allow precise volume dispensing over widely varied and varying input process media pressure and flow conditions. This system utilizes...
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7532953 |
Wound irrigation device
An apparatus includes a fluid permeable dressing and a cover membrane configured to extend over the fluid permeable dressing. A tube is coupled to the fluid permeable dressing and is configured to...
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7532952 |
Methods and apparatus for pressure control in electronic device manufacturing systems
In one aspect, improved methods and apparatus for pressure control in an electronic device manufacturing system are provided. The method includes acquiring information related to a current state of...
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7532115 |
Wireless position feedback device and system
A wireless position feedback device incorporated in a monitored device. The position feedback device measures a position of a moving element of the monitored device, generates a local power supply...
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7522974 |
Interface for operating and monitoring abatement systems
Method and systems are provided for monitoring and controlling one or more abatement systems. One or more abatement systems may be represented on a display alone with one or more effluent flows...
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7517469 |
Method and system to measure flow velocity and volume
Systems, devices and methods of measuring a flow of a liquid stream for a semiconductor process are provided. The liquid stream is delivered through a liquid delivery nozzle. The nozzle is adapted...
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7512460 |
Valve calibration routine
A method for calibrating a proportional solenoid valve used in the propulsion system of a windrower, wherein a programmable control module in connection with a valve and a sensor is programmed as...
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7505818 |
Converter method, system and apparatus
An x to pressure converter that uses valves oscillating between open and closed positions in a pulse width modulated mode, to force the output pressure to equal the input X.
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7499761 |
Variable function voting solenoid-operated valve apparatus having air-to-move valve actuators and testing method therefor
A variable function voting solenoid-operated valve apparatus is provide, wherein the apparatus includes a first solenoid-operated valve, a second solenoid-operated valve and a bypass valve disposed...
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7493194 |
Method and system for achieving force control in externally driven hydraulic cylinders
A method/system for achieving force control in externally driven hydraulic/gas-filled cylinders estimates effective flow parameters based on sensor measurements, and predicts desired flow...
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7490782 |
Spray pump holder for securing a spray pump assembly
A system for actuating a spray pump assembly comprises a reference platform, a motor, a drive transmission, a spray pump holder, a force coupler, a force transducer, and a system controller. The...
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7489986 |
Spa controller computer interface for spas
A remotely controlled and monitored spa. An interface signal converter is electrically connected to a spa controller. A remote computer can control the spa and monitor the status of the spa via a...
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7480544 |
Operation method of energy-saving fluid transporting machineries in parallel array with constant pressure
The present invention discloses a system of energy-efficient and constant-pressure fluid-transport machines coupled in parallel, which can flexibly and massively provide gas and water to every...
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7472433 |
Method and apparatus for determining when hands are under a faucet for lavatory applications
A method of controlling a flow of liquid includes calibrating a PSD infrared sensor associated with the spout. The calibrating includes turning on the spout to thereby dispense a stream of liquid...
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7471994 |
Infusion pump with an electronically loadable drug library and label reader
A system for creating a customized drug library for an electronically loadable drug infusion pump, the system including a drug library containing a plurality of drug entries, there being associated...
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7467639 |
Systems and methods for controlling gas flow
A method for controlling a motion of a gas valve in a gas feed line coupling a supply device to a burner is provided. The method includes receiving a signal representative of a user-selected...
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7467027 |
Compensation for thermal siphoning in mass flow controllers
A thermal mass flow controller for controlling flow rate of a fluid includes a conduit configured to receive the fluid, a pressure sensor that measures the pressure of the fluid as the fluid flows...
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7464721 |
Process equipment validation
A Safety Instrumented System for use with a process control system receives pressure of process fluid in the process piping. A valve positioner positions a valve which controls flow of process...
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7447566 |
Occlusion system and method for a flow control apparatus
A flow control apparatus having a flow monitoring system capable of detecting and identifying a downstream occlusion present within an administration feeding set loaded to the flow control...
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7440821 |
Method of determining average current in a PWM drive
A method of yielding the average current in a PWM driven coil for an electrohydraulic valve. The method includes transmitting a feedback signal into a Finite Impulse Response filter to take...
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7437215 |
Method and system for improving pump efficiency and productivity under power disturbance conditions
A system for controlling operation of a progressing cavity pump to maintain the motor operating under power disturbance conditions. For a blackout condition, a backspin controller uses regenerative...
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7433762 |
Methods for controlling multiple actuators
Methods for controlling at least two actuators are provided. An internal control system sends an input received from the main control system to a first actuator and diverts a portion of the input...
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7424894 |
Method and apparatus for providing a determined ratio of process fluids
A fluid flow control system that includes a fluid inlet to receive a flow of process fluid and a plurality of fluid outlets. The plurality of fluid outlets include a first fluid outlet and at least...
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7424346 |
Apparatus and method for pressure fluctuation insensitive mass flow control
A mass flow controller includes a thermal mass flow sensor in combination with a pressure sensor to provide a mass flow controller that is relatively insensitive to fluctuations in input pressure....
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7421316 |
Method and device for regulating fluid pump pressures
A method is provided for regulating fluid pump pressures by detecting an elevation differential between a fluid flow control device and the distal end of a fluid line in communication with the...
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7412303 |
Evapotranspiration unit for re-programming an irrigation controller
An evapotranspiration (ET) unit includes a first communication link, a processor and a second communication link. The first communication link receives actual ET data from a plurality of...
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7406982 |
Hydraulic system control method using a differential pressure compensated flow coefficient
A hydraulic system has an electrohydraulic valve that controls flow of fluid to operate a hydraulic actuator, such as a cylinder or motor. A set of characterization data is provided which describes...
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7406363 |
Irrigation controller with integrated valve locator
The present invention is directed to an irrigation controller, method and software program product for generating valve control signals for energizing a valve. The irrigation controller includes a...
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7403840 |
Irrigation control system
An irrigation control system and method for controlling irrigation based on weather data. Weather data such as wind, temperature, solar radiation, humidity, and rainfall, may be collected at one or...
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7403839 |
Water shut-off system
A moisture monitoring and control system comprising: 1) a plurality of moisture sensors; 2) one or more local or remote control stations capable of monitoring and controlling each of the individual...
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7400940 |
Method and apparatus for generating a volatilized liquid
A programmable aerosol generator forms a volatilized liquid by supplying a material in liquid form to a flow passage and heating the flow passage, such that the material volatilizes and expands out...
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7398138 |
Swimming pool and spa controller systems and equipment
Systems for controlling aspects of recreational or other environments are described. Such systems are especially, but not exclusively, useful for controlling either or both of pool or spa settings...
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7392113 |
Systems for controlling multiple actuators
Methods, control systems, and information handling systems for controlling at least two actuators are provided. An internal control system sends an input received from the main control system to a...
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7383102 |
Slug flow protection system
A protection system is provided that mitigates damage caused by slug flow in oil and gas production systems. The protection system opens or closes a choke valve based upon flow parameters such as...
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7380564 |
System and method for a mass flow controller
A system and method for controlling a mass flow controller to have a constant control loop gain under a variety of different types of fluids and operating conditions, and for configuring the mass...
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7369920 |
Pressure control system with optimized performance
A pressure control system for controlling pressure of a fluid in a chamber includes a pressure sensor configured to measure the pressure of the fluid in the chamber, and a valve configured to...
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