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7367241 |
Differential pressure type flowmeter and differential pressure type flow controller
A differential pressure type flowmeter comprises an orifice, a detector to detect a fluid pressure P 1 on the upstream side of an orifice, a detector to detect a fluid pressure P 2 on the...
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7363824 |
Flow sensor
A flow sensor for flowing media with a cylindrical housing ( 2 ) and with a sensor element located in the housing ( 2 ), the housing ( 2 ) preferably having an outside thread ( 3 ) and being...
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7357040 |
Torus wedge flow meter
A flow meter for measuring the volume of fluid flowing through the meter includes an inner cylindrical tube through which the fluid flows and an outer cylindrical tube tending over the inner...
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7337678 |
MEMS flow sensor
A micro-electro-mechanical, micro-fluidic flow sensor ( 14 ) includes a flow separating element ( 15 ) for separating a first portion ( 24 ) of a fluid flow ( 25 ) from a second portion ( 26 ) of...
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7337677 |
Differential pressure flowmeter, flow controller, and apparatus for processing substrate
A differential pressure flowmeter comprises a tube having a circular section, a first pressure sensor for measuring a pressure of a liquid flowing into the tube, a second pressure sensor for...
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7334602 |
Apparatus for controlling flow rate of gases used in semiconductor device by differential pressure
Provided is apparatus for controlling flow rate of gases used in semiconductor device by differential pressure by generating differential pressure in a fluid path. A differential pressure...
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7331227 |
Response measurement device
A response measuring device that can be used in equipment for personal training or exercise routines. This device includes a cylinder block; a chamber formed in the cylinder block and having first...
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7325463 |
Fluid sensor assembly
A fluid sensor assembly is provided for sensing a fluid property in-line. The assembly includes a body with a port for connecting the body to a fluid line and internal passage connecting the first...
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7302862 |
Flow rate-measuring device
A flow sensor 22 is provided on a wall surface of a flow path 4 in which a fluid to be measured. A member having minimal cross-section flow path 17 which has a diameter extremely smaller than...
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7293471 |
Flow meter for measuring fluid mixtures
The present invention is directed to a flow meter that obtains the individual flow rates of gas, liquid hydrocarbons, and water in a predominantly gas-containing flowing fluid mixture. The flow...
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7284450 |
Averaging orifice primary flow element
A process flow device that includes a self-averaging orifice plate type of primary flow element for measuring, by a differential pressure process, the volumetric rate of fluid flow at a point in a...
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7281436 |
Wedge flow meter with conditioner
A primary flow measuring element comprising a cylindrical body having an axis and an interior surface defining a fluid flow path and having at least one differential pressure producing segmental...
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7263900 |
Volumetric flow metering device
A metering device for producing a precisely metered volumetric flow is provided. The metering device comprises two displacement devices that are operated in phase opposition. In this case, the...
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7261003 |
Flowmeter and method for the making thereof
A flowmeter is provided that comprises a leadframe assembly ( 140 ) and a body ( 144 ) disposed at least partially around the leadframe assembly ( 140 ). The body ( 144 ) has a flow passage...
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7234450 |
Gas density ratio detector, gas concentration detector, and fuel vapor treatment apparatus
When a gas flow producer is driven, plural kinds of gases flow into a measure-passage at respective timing. An orifice is provided in the measure-passage. The orifice has a diameter-changing...
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7219558 |
Ultra low pressure drop flow element system for measuring fluid flow rates
The present invention relates to the field of correlating a fluid flow rate by strategically measuring a differential pressure of a fluid. Embodiments of the present invention build off a simple...
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7213473 |
Sample preparation system for microfluidic applications
An apparatus that couples automated injection with flow feedback to provide nanoliter accuracy in controlling microliter volumes. The apparatus comprises generally a source of hydraulic fluid...
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7213472 |
Connecting piece for fluid lines
A connector ( 3 ) is suggested, which is capable of connecting a fluid line ( 28 ) to a fluid technology device. A connection channel runs between a device connection ( 24 ) and a line connection (...
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7201066 |
System for automatic tire inflation
An apparatus and method for measuring gas flow rates and an improved automatic vehicle tire inflation system which utilizes the inventive gas flow measurement apparatus and method. The gas flow...
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7178410 |
Clogging detector for air filter
The detector for monitoring decrease in air flow rate due to air filter clogging. It is based on combination of three essential components: the air flow sensor, a threshold detector and an...
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7178409 |
Laminar flow meter or controller
Volumetric flow meters, volumetric flow controllers, mass flow meters, and mass flow controllers using a transverse laminar flow assembly are described. The flow assembly may be constructed from a...
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7162921 |
Measuring device for measuring the volume flow or the substance properties of a gas, whose direction of flow can reverse
A device for measuring the volume flow or other substance properties of a gas, whose direction of flow can reverse. The arrangement contains a specially designed Y-piece, which is used for...
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7096738 |
In-line annular seal-based pressure device
A pressure sensor for measuring a pressure of a process fluid includes a vessel, an electrode and a diaphragm. The vessel receives the process fluid. The electrode is integral with an inner wall of...
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7089805 |
Average bidirectional flow tube
An average bidirectional flow tube, including a body having two side plates and upper and lower plates, a partition plate installed to be perpendicular to the side plates of the body so that front...
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7085643 |
Device for estimating an amount of intake air of an internal combustion engine
In a device for estimating an amount of intake air of an internal combustion engine, wherein an amount of intake air passing through the throttle valve is calculated by using of an upstream side...
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7051765 |
Balanced orifice plate
An orifice plate for use in a conduit through which fluid flows is defined by a central circular region having a radius R 0 and a ring-shaped region surrounding the central circular region. The...
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7047822 |
Devices, installations and methods for improved fluid flow measurement in a conduit
Differential pressure measurement devices, installations and methods are disclosed, the devices including a main body and retainer. The main body is characterized by a front portion having a...
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7044002 |
Method and device for monitoring the flow speed of an infusion solution
Method and device for monitoring the flow speed of an infusion solution, such as with hemofiltration or hemodiafiltration. The device has a tube for conducting an infusion solution from a source of...
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7032463 |
Respiratory flow sensor
A respiratory tract differential-pressure flow sensor, including a tube having a distal end that is insertable into a respiratory tract, an interfering body disposed within the tube proximal to the...
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6964204 |
Fluid flow measurement device
The invention is directed to a device for obtaining flow rate measurements including a sensor assembly and a housing. The sensor assembly includes a body defining a first fluid flow passage having...
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6957588 |
Fluid measuring device and method
A pressure transducer and method for measuring pressure of a fluid flow in a tube include use of a sensing tube through which the pressurized flow passes. The sensing tube deforms outward in...
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6938498 |
Hydrocarbon gas flow rate adjusting method and apparatus
An object of the present invention is to provide a hydrocarbon gas flow rate adjusting method and apparatus, which suppress deterioration of an elastic foamed body with the passage of time and...
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6935338 |
Fluid resistant airway adapter
An airway adaptor that includes a tubular body having a first gas flow passage defined therein. A protrusion extends from an interior wall of the tubular body into the gas flow passage. The...
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6923074 |
Ball valve with flow-rate gauge incorporated directly in the ball
A fluid-flow measuring ball valve includes a replaceable ball within a housing. The replaceable ball includes a flow restriction calibrated to the characteristics of the fluid. Pressure ports on...
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6920799 |
Magnetic flow meter with reference electrode
An magnetic flow meter is provided which includes a reference electrode configured to electrically couple process fluid flowing within a flowtube of the flow meter. The reference electrode is...
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6915705 |
Flow sensor and flow resistive element
A flow sensor is disclosed that measures a flow of fluid passing through a conduit and a flow resistive element for use in such a flow sensor. The flow sensor includes a housing having a main...
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6912919 |
Restriction flowmeter
A restriction flowmeter including a cylinder through whose interior a fluid to be measured flows and a pipe for forming a restriction structure penetrating the cylinder in a direction perpendicular...
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6912895 |
Coolant flow monitoring system for an engine cooling system
A flow monitor is removably connectable in serial fluid communication with a coolant conduit of an engine cooling system. By providing a flow restrictor between upstream and downstream ports, a...
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6892586 |
Measuring and controlling the flow of flowable materials
A method of determining an inlet flow rate (F inlet ) of a flowable material including passing an inlet stream of flowable material through a chamber ( 20 ) having an outlet aperture ( 100 );...
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6871666 |
Bi-directional dual chamber orifice fitting
Methods and apparatus for a bi-directional dual chamber orifice fitting comprising a body with a chamber in fluid communication with a flow bore. The fitting also comprises an orifice supported by...
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6868741 |
Device and method enabling fluid characteristic measurement utilizing fluid acceleration
Devices and methods for enabling measurement of a selected fluid characteristic in fluid flowing through a conduit. The device includes a body connected in the conduit having an accelerator section...
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6865957 |
Adaptable fluid mass flow meter device
A mass flow meter device utilizing a housing having a wall portion forming a chamber with an entrance and exit for passing fluid through the same. A body is located within the chamber and is...
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6854341 |
Flow characteristic measuring apparatus and method
A differential pressure flow rate measurement apparatus comprises:
a conduit having a flow passage for conveying a fluid flow, the conduit being adapted for connection to a downhole fluid...
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6843139 |
Flow instrument with multisensors
An instrument used to control fluid flow. The instrument has a flow restrictor between an inlet and an outlet. First and second multisensor have sensing surfaces in the inlet and outlet that sense...
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6843138 |
Method and apparatus for measuring air flow
A method and apparatus includes a multi-position valve that restricts the air flow when the valve is placed in one position. Pressure tap valves are located are the inlet and outlet ports to...
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6826966 |
Flow sensor package
A flow sensor package with a housing, a pressure sensing element, a restriction, and an elastomeric seal. The housing has a base, a cover, an inlet port, an outlet port, and first and second...
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6802225 |
Differential pressure sensor with sloped strut edges for respiratory monitoring
A differential-pressure flow sensor for airflow measurement in the presence of water condensation, for use with mechanical ventilators. The pressure-sensing ports at either end of the interfering...
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6792814 |
Flowmeter
A flowmeter is provided for measuring the flow rate of liquids, particularly liquids with solids suspended therein, or corrosive liquids, by measuring a flow without any contact between the sensing...
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6792799 |
Positive flow meter
A flow meter and electrically operable valve assembly having integral flow meters provide detection of very low water flows, along with ease of installation and compact packaging for a water supply...
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6789433 |
Purge gas sensor
A flow sensor for an analytical instrument. The flow sensor can be used to detect the flow of a fluid such as purge gas in the instrument. The sensor can measure the fluid flow at an opening of the...
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