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8518592 Fuel cell system  
There is provided a fuel cell system capable of improving the performance and operational stability of the fuel cell system by measuring the exact amount of flow of an oxidizer that is supplied to...
8418567 Fluid visual inspection device  
A fluid visual inspection device includes a fluid visual inspection portion and one set of fastening caps. The fluid visual inspection portion includes a vane holder which has a first flange and...
8408074 Riser annulus flow meter and method  
A mudline riser annulus flow meter includes a liner configured to be attached to a riser to cover a hole; a cover configured to be attached to the riser to cover the liner such that a cavity is...
8181537 Linearized torque flow sensor  
A fluid flow meter is responsive to measured torque force imposed by fluid flow over a static impeller. Exponential torque relationships imposed upon a static torque shaft by fluid flow over a...
8100023 Rotary positive displacement flowmeter  
A rotary positive displacement flowmeter of the type utilizing two displacement rotors and a blocking rotor with the blocking rotor having a single recess and the displacement rotor cylinders being...
7997150 Magnetic drive assembly for petroleum and LPG meter  
A metering system for measuring a flow of petroleum and LPG. In embodiments of the invention, a magnetic drive is used to couple a measuring chamber, such as a known oscillating piston system, to a...
7921738 Device for identifying the location of coal ropes  
An apparatus (100) operative for purposes of detecting the presence of a coal rope within a coal delivery pipe (200) is provided. The apparatus (100) includes a rod (105) that is operative to flex...
7707898 Open bore turbine flowmeter  
According to the invention, a system for determining at least one property of a fluid flow through a conduit is disclosed. The system may include a bearing, at least one blade member, and a...
7318357 Machine and method for allowing different fluid or gas flow rates in different directions in a conduit  
A machine for allowing different fluid or gas flow rates in different directions through a conduit with a freely pivotable valve element, and a valve element stop so as can provide for limited flow...
7299819 Water flow sensor alone and in combination with a method and apparatus for selectively shutting off the flow of water to a building  
Embodiments disclosed herein relate in part to water flow sensors, and also to such water flow sensors in combination with a system used to selectively shut off the flow of water through a water...
7231836 Device for monitoring an air supply flow or a volumetric air flow  
The invention relates to a device for monitoring an air supply flow or a volumetric air flow, in particular for ventilators which can also be applied for extremely low flow speeds and/or throughput...
7201068 Water cut meter for measurement of water in crude oil  
An apparatus, systems, and methods for measuring an amount of oil in a flow of fluid are provided. A housing defines an interior passage configured to pass a flow of fluid. A capacitance sensor,...
7185548 Apparatus and method for measuring flow between ends of a break in a fluid line  
An apparatus and method for measuring fluid flow in a break between closely spaced confronting ends of a fluid line including first and second angularly extending conduit sections forming a...
7127953 Target flow meters  
A target flow meter has a target with a broad face attached to the free end of a rigid stalk. A fixed end of the stalk is attached to a rigid support secured in the system to be measured with the...
7121299 Regulator valve with flow indicator for a hot-water heating system  
The valve includes an intake duct (13) for conveying water into the valve, an externally projecting tubular body (20) of a transparent with an internal cavity (21) and a flow indicator rod (40),...
7028560 Method to linearly measure gas volume flow in ducts and flow sensor  
A method to linearly measure the flow of a gas in ducts, and a gas flow sensor using such a method are disclosed. In order to obtain a linear ratio between the differential pressure and the...
7024945 Flow sensing apparatus  
A flow sensing apparatus for detecting fluid flow rate and direction is described. The flow sensing apparatus includes a flow-responsive element projecting into the fluid flow path, and a position...
7013914 Throttle valve  
The present invention relates to a throttle valve, particularly for controlling a liquid flow in a central heating or an air conditioning system, with a flow control unit having a first and a...
7007557 Flow scale having a hingedly suspended impact plate  
An impact flow scale includes a first tube, disposed substantially vertically a second tube, disposed with a downward inclination and having an inlet at an upper end thereof and a lower end of the...
6994109 Fitting for measuring and regulating the flow rate of a hydraulic medium through a pipeline  
A fitting for measuring the flow rate of a hydraulic medium through a pipeline having a cylindrical fitting housing with a main flow channel includes a flow meter device with a measuring element...
6971272 Integrated fluid sensing device  
A circuit board, which includes one or more sensors, is integrated in a fluid control device, such as a valve manifold and a base plate. The fluid control device selectively directs a fluid used to...
6945124 Measurement system  
A device and method for measuring an area such as a throat area in a vane ring for gas turbine engines. Measurement inaccuracy introduced by image size changes as a result of the position deviation...
6892571 Sensor for the measurement of flowspeeds and method for operating the same  
A sensor for measuring a flow speed of a fluid medium includes a housing with a carrier membrane disposed in the housing and being essentially in a form of a vane having a circumference and at...
6889564 Peak flow meter  
A peak flow meter for measuring a peak flow or air exhaled by a patient. The preferred peak flow meter includes a substantially hollow housing having a top portion, a bottom portion, an air inlet...
6829948 Flow meter  
An input unit for receiving a signal from an oscillator corresponds to an ultrasonic wave received by the oscillator has an input impedance significantly smaller than an impedance of an...
6769299 Integral dual technology flow sensor  
A flow sensor includes a mounting plate, bending plate, and a sensing assembly. The mounting plate is mounted to an internal surface of an air hose. The mounting plate is flexibly coupled to the...
6763732 Arrangement for measuring concentrate flow in connection with a flotation cell  
An arrangement for measuring material flow, particularly concentrate flow, in connection with a flotation cell. The arrangement comprises an elongate sensor element extending essentially over the...
6730927 Gas flow measurement device  
Devices for the measurement of volumetric flow rate of a gas in a conduit are described. A vane arrangement is subjected to airflow and is displaced I response thereto. The vane arrangement forms a...
6725733 Torque balance flow meter  
Fluid flow rate can be measured by determining the torque on a shaft used to oscillate or rotate a vane in the fluid. An intermediate gear, which links a drive gear to a gear on the vane shaft, is...
6679125 Fine particle flowmeter  
A flow meter for determining the flow rate or mass of a moving stream of fine particles comprises a guide means for guiding the material to be measured along a predetermined path having an entry...
6644132 Flow profile conditioner for pipe flow systems  
The present invention includes a flow conditioning apparatus for conditioning flow for accurate flow measurements. The flow conditioning apparatus is installed in a fluid stream to provide a flow...
6619142 Integrated fluid sensing device  
A circuit board, which includes one or more sensors, is integrated in a fluid control device, such as a valve manifold and a base plate. The fluid control device selectively directs a fluid used to...
6612166 Variable viscosity damper for vane type angle of attack sensor  
An angle of attack sensor has a vane mounted on a rotating shaft that rotates in response to angle of attack. The shaft has a rotor at one end which is in a chamber in a housing supporting the...
6575046 Air mass flow measuring device and method of use  
A flow measuring device for use with a heating, ventilation and air-conditioning (HVAC) system includes a vane being positionable in an airstream, the vane being rotatably positionable between a...
6510748 Pipe connection system  
A pipe connection system has a non-threaded, quick-pipe connection for connecting pipe in a pressurized system, for connecting piping components within a fire sprinkler system, including a flow...
6435041 Device useful for measuring the flow rate of cryogenic liquids flowing through a tube  
The present invention relates to a device useful for measuring the flow rate of cryogenic liquids flowing through a tube, which comprises two coaxial tubes integrated at both ends by means such as...
6408698 Sensors and method for measurement of flow rates and cumulative flow in ducts  
The present invention relates to a sensor for measuring the instantaneous rate of mass flow and the cumulative mass flow in steady or unsteady flows of single-phase liquids or gases in a duct. By...
6367336 Process mass flow apparatus and method for measuring the mass flow of powdered and granulated solids as well as the accumulated weight of material passed during a specified time  
A process mass flow apparatus for measuring the mass flow rate of a powdered, granulated or otherwise substantially divided process solid, seeds, grains, or similar particulate materials includes a...
6325098 Valve for regulating and measuring the flowrate of a fluid  
Valve for regulating and measuring the flowrate of a fluid through a header (1) and a bypass duct (2,2b) inside the said header, comprising means (10,10a) for shutting off the aperture (2b) of the...
6314822 Peak flow meter  
An air-flow measuring device for measuring respiratory performance includes a valve having at least one rotary blade for detecting air-flow through the device. The valve includes at least one...
6253625 Target flow meters with immersed strain gauges  
A target flow meter has a target with a broad face attached to the free end of an elastic stalk. The stalk has at least a portion with an oblong cross section. A fixed end of the stalk is attached...
6237427 Flow rate measuring system for crops supported on a conveyor  
A flow rate measuring system for conveyed material includes a conveyor including a frame and a material supporting surface moveably supported by the frame. The flow rate measuring system utilizes...
6212958 Flow sensing assembly and method  
A flow sensing assembly for detecting the presence of fluid flow includes a sensor body having a flow passage therethrough and a resilient blade having an end which is fixed relative to the sensor...
6212959 Hydration insuring system comprising liquid-flow meter  
A system for insuring proper human hydration comprises an oral-suction-activated flow meter (202) which measures and displays (292) the volume of fluid (255) withdrawn from a reservoir (258)...
6196070 Flow sensor with wide dynamic range  
An improved fluid flow measuring device having more nearly linear response characteristics over a wide range of fluid flow rates measures the force exerted on a fluid flow sensing element (21, 37,...
6181128 Magnetic beam flow sensor  
A magnetic sensor for measuring a physical property that can be translated into the flexing of a beam. The sensor includes a support extending outward from a base to a distal portion. A beam is...
6119724 Two-way valve for regulating and measuring the flow rate of a fluid  
A Two-way valve for regulating and measuring the flow rate of a fluid through a header (1) and a branched duct (2,2a) inside the header itself. The valve (10a, 10, 11, 11c) which shuts off the...
6055869 Lift force fluid flow sensor for measuring fluid flow velocities  
A fluid flow sensor uses lift forces exerted on a plate-like airfoil member to determine the velocity of a fluid flowing past the sensor. The member has a pair of spaced, low aspect ratio airfoil...
6032540 In-line, field adjustable irrigation flow indicator for high, normal and low flow rates  
An in-line flow meter for use in drip irrigation systems which provides a field adjustable, infinitely variable visual flow indication of both high and low flow rates above and below a field...
6009762 Fluid flow detector  
A system and method for determining a volume rate fluid, particularly liquid such as sewage, comprises a conduit for passage of sewage, a freely pivotable flap valve mounted at an outlet of the...
Matches 1 - 50 out of 137 1 2 3 >