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5999888 |
Automated control system for managing multiple energy sources
An automated control system for a dual-fuel boiler, engine, or other apparatus continuously monitors the consumption of a primary fuel source and automatically switches from the primary fuel source...
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5995909 |
Method of compensating for changes in flow characteristics of a dispensed fluid
A fluid dispensing control for controlling the dispensing of a fluid by a metering valve through a nozzle onto a workpiece. An initial value of a flow characteristic of the fluid is determined that...
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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...
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5988860 |
System and method for directing air flow having a sash
A system for directing air flow in a fume hood having a sash includes a mechanism for producing an output control signal corresponding to a desired flow of air through the sash of the fume hood....
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5983668 |
Air separation unit feed flow control in an IGCC power generation system
A cryogenic air separation system which is subject to periods of significant changes in product demand is controlled during such periods to minimize the impact of transient operation on product...
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5964659 |
Ventilated enclosure for gas cylinders and manifolds
Method and apparatus for increasing the velocity of sweeping gas as it moves across a gas delivery system contained in a hazardous material delivery enclosure, e.g. a gas cabinet valve manifold box...
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5966674 |
Flow signal filter
Method and apparatus for providing a filtered signal which indicates of a flow of fluid to a fluid pressure communication conduit, the flow being dependent upon the pressure of fluid in a chamber....
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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...
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5956259 |
Intelligent fueling
The present invention provides a fuel dispenser system capable of receiving a signal from a vehicle transponder. Upon receiving the transponder's signal, the dispenser determines the proximity of...
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5954089 |
Electromagnetic regulator utilizing alternate valve operating modes for gas pressure regulation
A pair of serially connected electrically operated computer controlled gas valves combine with a pressure sensor to output pressure regulated low pressure gas dispensed from a high pressure gas...
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5923571 |
Apparatus and method for automatic congruent control of multiple boilers sharing a common feedwater line and chemical feed point
Two control methods and systems for automatically achieving and maintaining a desired sodium/phosphate ratio and phosphate concentration of the boiler waters in a plurality of parallel industrial...
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5923572 |
Fuel dispensing control, authorization and accounting system
The disclosed system controls, authorizes and accounts for liquid petroleum fuel dispensed from liquid petroleum fuel dispensers without the need for control and authorization input from...
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5889684 |
Computer-controlled heated and/or cooled liquid dispenser
A liquid, e.g., water, dispenser is disclosed which includes a programmed processor which controls many dispensing functions, including controlling liquid dispensing, controlling heating and...
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5884086 |
System and method for voltage switching to supply various voltages and power levels to a peripheral device
Within a data processing system, such as a personal computer, non-standard, or auxiliary, voltage and current may be supplied to an attached peripheral device along with standard Universal Standard...
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5867403 |
Fuel dispenser
A fuel dispenser is disclosed. The fuel dispenser has a housing which contains two chambers, one contains a computer and the other the hydraulic parts of the dispenser. Fiber optic cables connect a...
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5867031 |
Method of improving pressure sensor measurement by passive current compensation
A simplified method and apparatus for electronic pressure control with compensation for current operating temperature and pressures in which computer memory is employed for storing a plurality of...
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5852563 |
Intelligent coolant flow control system
A coolant distribution system and method for a plurality of devices requiring cooling where the coolant source is of limited capacity. The system and method apportion coolant to each of the devices...
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5835379 |
Apparatus and method for analyzing a process of fluid flow, an apparatus and method for analyzing an injection molding process, an injection molded product, and a production method of the injection molded product
The present invention presents a fluid flow process analyzing apparatus and method, an injection molding process analyzing apparatus and method, an injection molded product and an injection molded...
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5808909 |
Electronic brake control valve tester for rail cars and trains
An automatic, computer controlled air brake testing system having an opening and closing means for opening and closing air passages of a railroad car brake system, a pressure measuring means for...
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5798941 |
Surge prevention control system for dynamic compressors
A surge prevention control system for use with a dynamic compressor provides a multiple module controller for operating an anti-surge valve to bypass flow around the dynamic compressor. The...
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5771178 |
Fail-safe fluid transfer controller
A fail-safe fluid transfer control apparatus has full redundancy in the response to various inputs such as overfill probe signals, ground detection signals, and the like. Independent microprocessor...
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5763794 |
Methods for optimizing sampling of a petroleum pipeline
An isokinetic sampling method has been discovered for use in a pipeline carrying a three phase mixture of petroleum, water and gas. The method is used in combination with a fluid fraction measuring...
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5751606 |
Automatic valve test apparatus
This apparatus is for testing valves, particularly those adapted for controlling incontinence. Microprocessor computer equipment and programs use specialized test programs and interface equipment...
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5745378 |
Parameter input for drug delivery pump
Parameters for controlling a drug infusion pump (10) are selected by scrolling through sets of predefined values. A value for either a rate and/or a volume of a fluid to be infused (VTBI) is...
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5706191 |
Appliance interface apparatus and automated residence management system
A method for bringing an appliance and/or an electrical or mechanical system of a residence into communication with another, or with a control device within the residence, or with an other...
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5689434 |
Monitoring and control of fluid driven tools
A system for monitoring and/or controlling the torque applied by a fluid driven tool for driving threaded fasteners, such as tools driven by either air or oil. The system includes a fluid flow...
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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...
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5659485 |
Discharge flow control system and method in hydraulic pump
A discharge flow control system and method of a hydraulic pump driven by an engine for the minimization of the difference between a discharge mount of flow in the pump and total mount of operating...
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5654885 |
Valve position controller
A valve position controller (10) for controlling the position of an industrial-valve element (29, 29') includes a check valve (72, 74) in each of closing and opening pressurized-fluid input lines...
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5642278 |
Method and apparatus for temperature and pressure compensation of pneumatic manifolds
A simplified method and apparatus for electronic pressure control with compensation for current operating temperature and pressures in which computer memory is employed for storing a plurality of...
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5635626 |
Measurement of a gas characteristic
Apparatus to measure the calorific value and/or the Wobbe index of fuel gas supplied along a pipe. A control can operate two outlet valves and cause an inlet valve to be locked in a closed position...
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5628896 |
Apparatus for operating a filter arrangement
A method and apparatus for operating a filter system of a swimming pool in proportion to the degree of contamination of the water in said pool by processing a signal representative of the number of...
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5608650 |
Systems and methods for testing pump flow rates
The system and methods obtain a set of multiple data samples and derive an average of the data samples in the set (SET AVE ). The systems and methods derive a standard deviation for the data...
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5583790 |
Computerized liquid flow-valve monitoring and control unit
For system providing a storage and feed source of a particular liquid, and providing a conduit flow of one or more lines to one or more outlet valves separately controllable and operateable and...
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5582235 |
Temperature regulator for burn-in board components
The present invention is directed to an apparatus suitable for regulating, with an impinging flow of gas, the temperature of an electronic component under thermal stress testing at selected...
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5532922 |
Non-linear control system for a single input single output process
A control system and method for providing a nonlinear response for a single input-single output system. A system output is measured and compared against a predetermined set point. An error signal...
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5521824 |
Method and apparatus for controlling an engine test apparatus using lead-lag control
A system (102) and method for controlling the operation of an engine test apparatus (104) during a test cycle is provided. The system (102) includes an operator interface (106) for producing a...
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5519636 |
Electronic control device for a valve range of modular design
An electronic control device for a modular valve range, which has a fluid manifold arrangement fitted with electrically controlled valves. The valves are controlled via at least one control module....
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5519638 |
Automatic system for monitoring and replenishing hazardous liquids in tanks
An automatic system is disclosed which monitors and replenishes hazardous liquids in their holding tanks, as such liquids are typically used in manufacturing processes. The inventive system and...
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5504693 |
Flow control system
A personal computer is operated in conjunction with an in line flow computer to provide real time flow data on the personal computer screen. Pipeline flow can be regulated and directed from the...
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5503064 |
Apparatus and method for controlling a pasteurizing system
The disclosure relates to an apparatus and method for controlling a system used to pasteurize food products such as milk, orange juice and raw eggs. Such system has components including at least...
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5491631 |
Fault diagnostic system for vehicles using identification and program codes
A memory stores a vehicle identifier code which enables identification of a vehicle carrying the same type of electronic control unit (ECU) correspondingly to an ECU identification code (ECU-ID)...
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5464504 |
Inferential correction of composition for a distillation analyzer
In a distillation column, which for control purposes cannot tolerate the inherent dead time between analysis of consecutive samples in chromatograph analyzers, the chromatograph output is...
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5455781 |
Apparatus and method for determining the measurement accuracy of electronic gas meters
An apparatus and method for automatically determining the measurement accuracy of an uncalibrated field fluid flow meter by comparing its fluid flow volume, measurement, V f , to a fluid flow...
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5455772 |
Method of and apparatus for testing an engine or a compressor
A method of and apparatus for testing an engine or compressor wherein one of an inlet and an exhaust valve (19) is actuated by a hydraulic piston and cylinder arrangement (11) and the flow of...
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5452234 |
Process environment monitoring system
A process environment monitoring system collects and tests air samples from a number of different sample locations. Each sample is drawn into a sample test chamber into which a beam of infrared...
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5448893 |
Process for maximizing the recovery of argon from an air separation system at high argon recovery rates
The present invention is a process for maximizing the recovery of argon at high argon recovery rates from an air separation system having a high and low pressure distillation column containing...
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5440477 |
Modular bottle-mounted gas management system
A Modular Bottle-Mounted Gas Management System (10) that overcomes the problems encountered by previous gas cabinet equipment is disclosed. The present invention comprises a complete gas manifold...
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5431023 |
Process for the recovery of oxygen from a cryogenic air separation system
A process for recovery of oxygen from a cryogenic air separation system in which measured data at the input or output of a latent heat exchanger and measured data within a column is compared with...
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5421188 |
Proving means and method
The apparatus and method proves to be the use of the pipeline carrying a petroleum fluid. A through-put pipe having a meter to be proved, and the bypass pipe are connected with valves to the pipe...
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