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8166999 |
Gas block device and gas block method
A use condition of gas equipment is monitored. An abnormality determination unit 26 determines whether or not a use flow volume obtained by detecting a flow velocity obtained by measuring a signal...
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8161998 |
Frozen/chilled fluid for pipelines and for storage facilities
Methods of, and apparatus for, storing and transporting a hazardous fluid, such as a combustible fuel, include methods and means, respectively, for: (a) treating the fluid to reduce its hazardous...
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8162000 |
Adjustable pneumatic system for a surgical machine
A pneumatic system for a surgical machine includes a reservoir, first and second proportional valves, and a controller. The reservoir holds pressurized gas. The first proportional valve is located...
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8151952 |
Proportional control valve
The invention relates to a proportional control valve for the variable hydraulic adjustment of the damping force of a shock absorber, for which purpose the proportional control valve has a throttle...
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8151823 |
Fluid power valve arrangement with at least one solenoid valve
A fluid power valve arrangement with at least one solenoid valve whose solenoid is connected or able to be connected via only two control lines with an electrical control and/or communication...
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RE43288 |
High purity fluid delivery system
A fluid delivery system includes a flow control device and a Coriolis mass flowmeter in fluid communication with the flow control device. The Coriolis flowmeter has a flow-tube made of a...
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8144448 |
Control unit comprising a closed-loop controller for regulating the electrical coil current of a regulating electrovalve
A control unit has a closed-loop controller which is connected to a regulating electrovalve by way of a feedback branch, forming a closed-loop control circuit, in order to regulate the electrical...
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8132586 |
Multiple flow rate detection system and method for consumer appliance
A supervisory system and method for monitoring multiple flow rate fluid distribution systems and for determining the presence of a failure therein are provided. The system monitors the flow of...
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8127783 |
Pressure-insensitive mass flow controller
A method of preventing a mass flow controller from participating in crosstalk in an array of mass flow controllers is described. The method includes sensing and providing a signal indicative of a...
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8127967 |
Volumetric control apparatus for fluid dispensing
The present invention provides an apparatus for dispensing fluid in preselected volumetric quantities. The apparatus comprises a valve positioned inline with a conduit holding fluid under pressure,...
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8109289 |
System and method for decentralized balancing of hydronic networks
A method includes associating a plurality of valve balancing units with a plurality of valves in a hydronic network. The method also includes adjusting a setting of at least one of the valves using...
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8104495 |
Versatile emergency shutdown device controller implementing a pneumatic test for a system instrument device
A multi-functional or versatile emergency shutdown valve controller may be used in various different emergency shutdown configurations to enable the testing of different types and configurations of...
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8082946 |
Liquid flow controller and precision dispense apparatus and system
Fluid control apparatus including a proportional flow valve having a fluid inlet and a fluid outlet; a pneumatic proportional control valve in communication with the proportional flow valve for...
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8079383 |
Controller gain scheduling for mass flow controllers
A mass flow controller having a feedback controller gain, comprises: a sensor configured so as to sense the flow of fluid through controller; a valve arranged so as to adjust the flow of fluid...
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8074677 |
Method and apparatus for controlling gas flow to a processing chamber
A method and apparatus for delivering gases to a semiconductor processing system are provided. In one embodiment, an apparatus for delivering gases to a semiconductor processing system includes a...
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8072343 |
Local emergency isolation valve controller with diagnostic testing and trouble indicator
A local logic solver that operates with a local smart valve controller to control, test and monitor performance characteristics of a local field-mounted emergency isolation valve device, outputting...
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8066151 |
Measuring fluid dispenser
A measuring fluid dispenser for dispensing fluids in measured quantities has a user input device for generating at least one user input signal. A flow regulator provides a known fluid output flow...
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8056579 |
Mass flow controller
A mass flow controller has: a flow rate sensor section that measures the flow rate of a fluid and outputs a flow rate measurement signal indicating the measurement value; a flow rate control valve...
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8057387 |
System, method and apparatus for regulating vacuum supplied to surgical tools
A system, method and apparatus for regulating vacuum applied to surgical suction devices allowing the use of a single vacuum regulator and associated canister to provide vacuum to two suction...
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8047225 |
Method for water hammerless opening of fluid passage, and method for supplying chemical solutions and device for water hammerless opening for which the method is used
The water hammerless opening device comprises an actuator operating type valve installed on the fluid passage, an electro-pneumatic conversion device to supply the 2-step actuator operating...
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8037896 |
Pressure regulation in remote zones
A pressure control system remotely controls pressure within one or more remote zones, each respectively connected to an enclosure through a conduit, by controlling flow of a fluid into and out of...
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8020574 |
Method for closing fluid passage, and water hammerless valve device and water hammerless closing device used in the method
A fluid passage is emergently-closed in a short time without causing a water hammer by an extremely simple device and operation. A water hammerless closing device includes an actuator operated...
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8015995 |
System and method for flow monitoring and control
One embodiment of the present invention can include a flow control device that comprises an inlet, an outlet in fluid communication with the inlet, a pressure sensor, which may or may not be the...
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8019481 |
Flow rate ratio control device
A flow ratio controller having: a main channel; branch channels branching from the end of the main channel; control valves respectively provided in the branch channels; a plurality of flow rate...
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8006572 |
Differential-pressure flow meter and flow-rate controller
A differential-pressure flow meter is capable of easily eliminating adhesion to an orifice of an extraneous material. The differential-pressure flow meter includes: a pair of pressure sensors...
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7975718 |
In-situ monitor of injection valve
The present invention generally provides methods and apparatus for monitoring performance of an injection valve. In one embodiment, a control signal relates to an actuator movement is monitored and...
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7975558 |
Method and apparatus for gas flow measurement
A method and apparatus for measuring gas flow are provided. In one embodiment, a calibration circuit for gas control may be utilized to verify and/or calibrate gas flows utilized for backside...
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7971604 |
Flow controller delivery of a specified-quantity of a fluid
A system and method for delivering a specified-quantity of a fluid using a flow controller based on a fluid delivery profile is described. One embodiment includes a fluid delivery profile that...
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7954508 |
Electronically controlled valve actuator in a plumbed water line within a water conditioning management system
An electronically controlled actuator in a plumbed water line within a water conditioning management system, having an at least one valve with a valve stem in a plumbed water line within the water...
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7950413 |
Electromagnetic pressure regulating valve device having an integrated pressure sensor
An electromagnetic pressure regulating valve device for regulating a hydraulic pressure including at least one pressure regulating valve which includes a solenoid part having at least one bobbin...
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7931042 |
Vacuum suction system and method of controlling the same
A vacuum suction system comprises a work conveyor table 2 having work receiving openings 5, and a table base 3 having vacuum suction channels 7 which communicate with the work receiving openings 5...
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7926509 |
Method for flow rate control of clustering fluid and device for flow rate control of clustering fluid employed in the method
Disclosed is a method of controlling the flow rate of clustering fluid using a pressure type flow rate control device in which the flow rate Q of gas passing through an orifice is computed as K=KP1...
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7918238 |
Flow controller and its regulation method
A mass flow controller arranged to perform mass flow test operation in the controller itself by incorporating a test tank. The mass flow controller is provided, in a channel (6) for feeding fluid,...
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7909052 |
Apparatus and method for controlling gas flow
A gassing system includes a gassing device, a pressure regulator in communication with the gassing device and a gas source and a PLC electrically connected to the pressure regulator. In addition,...
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7890220 |
Low overhead closed loop control system
A tool includes a chamber, a network, a sensor, a tool controller, and a pressure controller. The network carries messages to and from devices on the network. A header portion of a message...
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7890216 |
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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7890200 |
Process-related systems and methods
A process control system and method for use in controlling operation of a process in response to identification of one or more events, where each event is a condition relating to one or more...
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7878311 |
Piston with an integral electrically operated adjustment valve for a hydraulic vibration damper
A vibration damper includes a cylinder within which a piston is slidably received thereby defining compression and rebound chambers. The piston has a bore with a valve seat through which fluid...
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7878214 |
Ullage pressure regulator
A system for maintaining pressure in the liquid fuel tank of a high-speed flight vehicle, such as a hypersonic flight, scramjet powered air and space vehicle, manages tank ullage using a pressure...
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7878481 |
Method for triggering a plurality of valves, and control block having a plurality of valves
A plurality of valves are triggered so that a first valve is triggered by a first trigger signal and a second valve is triggered by a second trigger signal, the first trigger signal and the second...
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7881886 |
Methods for performing transient flow prediction and verification using discharge coefficients
A method for determining an actual gas flow rate as gas flows through a gas flow delivery system is provided. The method includes sending the gas through the gas flow delivery system into a gas...
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7871570 |
Fluidic array devices and systems, and related methods of use and manufacturing
The instant application provides a fluidic array device having an elastomeric body that provides easy fluidic control of the device. The elastomeric body may include plurality of intersecting row...
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7866337 |
Chemically inert flow controller with non-contaminating body
A flow controller including a unitary controller body with a chemically inert fluid conduit having an insertable constriction or orifice disposed within the conduit having a reduced cross-sectional...
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7861740 |
Digital flow control
A digital flow control assembly for controlling the volumetric flow rate of fluids includes a fluid flow conduit, a plurality of serially-arranged flow nodes positioned along a length of the fluid...
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7849870 |
Piezoelectric pressure control valve
A pressure control valve having a common plenum formed by two flow control valves that each utilize electrically controlled piezoelectric actuators to generate a number of possible operating states...
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7849869 |
Method for water hammerless opening of fluid passage, and method for supplying chemical solutions and device for water hammerless opening for which the method is used
The water hammerless opening device comprises an actuator operating type valve installed on the fluid passage, an electro-pneumatic conversion device to supply the 2-step actuator operating...
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7848868 |
Method and apparatus for pressure reducing valve to reduce fuel pressure in a common rail
It is a objective of the present invention to provide a control apparatus which is capable of compensating a delay time for opening a pressure reducing valve since an electronic control unit sends...
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7828008 |
Online partial stroke testing system using a modified 2004 architecture
A system and a method for partial stroke testing of a critical valve using a bypass valve includes flowing two streams of gas simultaneously through a bypass valve, opening the critical valve with...
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7823604 |
Exhaust apparatus pressure control system
A pressure control system is disclosed. The control system in one embodiment includes a main body comprising a pilot chamber wherein an intake port and a discharge port are formed, and a spool...
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7814936 |
Sound pressure level feedback control
Methods and systems are provided for predicting internal sound pressure within a flow passage, by measuring a vibration velocity response of a wall of the flow passage, for example, using...
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