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| Number | Title | Issue Date |
| 7347223 | Pipe flow stabilizer A fluid flow stabilizer for use in a flow of fluid in a conduit between a source of turbulence and a fluid control device. The stabilizer comprises a fluid conduit section having a first end with a mounting arrangement for mounting the first end to the fluid conduit... | 03/25/2008 |
| 7317260 | Wind flow estimation and tracking using tower dynamics A turbine control system for a variable speed electrical generator in a wind turbine mounted atop a support tower. The wind turbine converts wind energy into a driving torque applied to the generator. The control system includes a turbine support tower position sens... | 01/08/2008 |
| 7249503 | Tube and die interface for liquid flow sensing through the tube A thermal sensor includes a die having a surface formed to accept the outer surface of tubing; a molded plastic part located on the die surface, said molded plastic part including flexible portions having a surface adapted to engage the bottom half of the circumfere... | 07/31/2007 |
| 7238265 | Electroplating apparatus with functions of voltage detection and flow rectification The present invention provides a fountain-type electroplating apparatus with functions of voltage detection and flow rectification, comprising: an electroplating tank, a rectification device, and an overflow tank, wherein the electroplating tank is positioned inside... | 07/03/2007 |
| 7213467 | Flowmeter An electromagnetic flow meter is configured as an insert for insertion into an in-situ housing connected in a flow line. This can enable a body previously installed for use with an insert of a mechanical flow meter to be adapted for use with an insert of an electrom... | 05/08/2007 |
| 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 U-shaped assembly housing straightening vanes and a metering device. ... | 03/06/2007 |
| 7117595 | Method for manufacturing a conveying element of an axial type flow meter used for drink vendors A device is described for measuring a fluid, to be used advantageously in mixing devices for ingredients of liquid drinks. The device comprises an impeller, a diffuser upstream from the impeller and detecting means for the impeller (46). The diffuser (41 | 10/10/2006 |
| 6976393 | Pygmy current meter with magnetic switch An apparatus for measuring fluid velocity includes a generally Y-shaped yoke including a base and first and second forks, the first and second forks including through holes at ends thereof; a bucket wheel supported between the first and second forks of the yoke; a f... | 12/20/2005 |
| 6786103 | Water meters to be mounted in the pipe conduits of a nominal diameter class and method for operating such water meters The present invention relates to water meters for the installation in pipe lines of a nominal width-group and a method for operating such water meters, which operate according to the Woltmann principle. The present invention addresses the problem of avoiding the cal... | 09/07/2004 |
| 6604434 | Method and apparatus for determining the direction and rate of a rotating element The present invention provides a device for measuring both the magnitude of rotation of a rotating magnetic field as well as the direction of rotation of a rotating magnetic field. The present invention may be used to measure the magnitude and direction o... | 08/12/2003 |
| 6199434 | Compact device for metering gas at variable pressure The device for metering the volume of gas flowing in a pipe, downstream from an expander-regulator, comprises in succession a flow straightener, a velocity-measuring flowmeter, and a silent flowrate limiter. The straightener comprises a support ring in wh... | 03/13/2001 |
| 6196065 | Device metering and measuring quantities of liquid A device for metering and measuring quantities of liquid, in particular in a pump for liquid fuels, having a plurality of volume meters, an assigned valve being arranged upstream of each volume meter, and having a liquid supply which branches into individ... | 03/06/2001 |
| 6065352 | Turbine meter with a rotor having accuracy enhancing rotor blades A turbine meter used for measuring the volume of fluid flowing through a conduit includes an elongated housing having an upstream end and a downstream end and a rotor mounted within the housing. A plurality of turbine blades are mounted on the rotor at an... | 05/23/2000 |
| 5877430 | Pressure measuring system for gas flow meter A turbine gas flow meter (10) includes a meter body (12) including an inlet portion (24) having an inlet body (32) mounted therein, with an exit end (30) of the body inlet portion being defined at an internal plenum (22) of the meter body, and a removable... | 03/02/1999 |
| 5831176 | Fluid flow measurement assembly A fluid flow measurement assembly is shown and described. In a preferred embodiment, a flow conditioning section comprised of straightening vanes and a diffuser, as well as temperature probes, pressure transducers, and a metering assembly, are all provide... | 11/03/1998 |
| 5654513 | Turbine flowmeter with simple hydrodynamic axial thrust compensation means The turbine flowmeter includes an axially movable rotatable impeller wheel (1) consisting of an impeller hub (3) and vanes (4) connected to it; a first fixed hub (5) on one side of the impeller wheel; a second fixed hub (6) on another side of the impeller... | 08/05/1997 |
| 5596152 | Flow straightener for a turbine-wheel gasmeter Flow straightener for eliminating vortices in a gas stream through a flow tube. The flow straightener consists of a plate with a circular symmetric hole pattern, wherein the diameter of the holes is smaller than 0.1 times the diameter of the flow tube. Th... | 01/21/1997 |
| 5277071 | Hydrometric vane A hydrometric vane has a housing, an upstream casing and a downstream casing provided in the housing, an impeller rotatably supported in the housing and axially movable between the casings. The impeller has a hub which forms an annular chamber and extends... | 01/11/1994 |
| 5138888 | Pivotable axis turbine flowmeter An apparatus for measuring the rates of flow of fluid through a line, which is characterized by a fluid driven turbine whose axis may be pivotably varied throughout an arc from being parallel to the direction of fluid flow to a position perpendicular to t... | 08/18/1992 |
| 5109705 | Turbine rate-of-flow transducer The turbine rate-of-flow transducer incorporates a cylindrical body consecutively located wherein in the cocurrent direction there are a first flow straightener, a device for balancing an axial force of the flow, a rotor and a second flow straightener. Th... | 05/05/1992 |
| 4694681 | Measuring turbine A measuring turbine with a turbine rotor arranged in a flow channel of the measuring housing comprises a turbine rotor and an inductive pulse pickup, wherein between the wall of the housing of the flow channel and the circumference of the turbine rotor an... | 09/22/1987 |
| 4649756 | Flow sensors The disclosed apparatus for sensing the flow of liquid along a passage includes a turbine-type rotor formed of high-resistivity insulation and supported coaxially in the passage. The rotor has spiral vanes distributed about a core. A stator upstream of th... | 03/17/1987 |
| 4631967 | Automatic insertion device The automatic insertion device will insert or withdraw a piston rod into a pressurized fluid pipeline. In one embodiment, the piston rod will allow intrumentation on the exterior of the pipeline to directly sense the pressure of the fluid inside of the pi... | 12/30/1986 |
| 4608871 | Device for measuring the liquid portion of a two-phase flow of gas and liquid A device for measuring the liquid portion of a two-phase flow of gas and liquid in conveying a liquid by means of a gas comprises a tubular housing (1) and a turbine wheel (2) with axial throw-flow rotatably mounted therein, said turbine wheel being provi... | 09/02/1986 |
| 4581946 | Instrumental error compensation circuit for flow meter An instrumental error compensation circuit for a flow meter is disclosed in which a flow rate calculated from an output signal of the flow meter is identified with respect to a plurality of predetermined sections of flow rates. Flow rate compensation coef... | 04/15/1986 |
| 4523479 | Fluid flow measuring device A mass flow meter for fluids flowing through a conduit wherein the fluid passes through an axial flow driving impeller. A balancing impeller attached to the driving impeller by a shaft rotates in a damping fluid provides a linear torque versus rotational ... | 06/18/1985 |
| 4463613 | Calibratable turbine wheel gas meter with exchangeable measuring insert A calibratable turbine wheel gas meter includes a tube member having a lateral stud which carries a counter. An exchangeable measuring insert comprises an inlet member including an inlet body and an outlet member including an outlet body and is inserted i... | 08/07/1984 |
| 4459861 | Measuring turbine for high volume, high viscosity fluids A measuring turbine with a turbine rotor arranged in a flow channel of a measuring tube comprises flow rectifiers, a turbine rotor and an adjusting element capable of influencing the rotating velocity of the turbine rotor through the fluid to be measured.... | 07/17/1984 |
| 4450726 | Flow-operated measuring apparatus A measuring apparatus is disclosed which is operated by the flowing of a medium. The apparatus comprises a rotor fitted coaxially within a flow pipe, a tachometer of the rotor and a flow guide member comprising a director and a controller. By means of the... | 05/29/1984 |
| 4419052 | Turbine meter rotor An improved rotor for fluid flow meters having a rotor hub with a vane hub mounted thereon including spaced inner and outer cylindrical walls. These inner and outer cylindrical walls are provided with grooves and slot respectively that are radially aligne... | 12/06/1983 |
| 4404861 | Liquid flowmeter A flowmeter having a flow passageway with co-axial inlet and outlet openings at its opposite ends and a vaned flow measuring rotor between the openings. The rotor is mounted in low friction bearings and yet the meter is operable within the normal accuracy... | 09/20/1983 |
| 4378703 | Flowmeter In a flow meter of the type comprising a rotor consisting of a spindle 12 and bearing heads 9 and 11 cooperating with seats 5 and 6 to give support of the rotor, it has been found that the flow does not split evenly between the ends. In order to improve t... | 04/05/1983 |
| 4345480 | Rotary flow meter An impeller is rotatably mounted in a housing on the lower end of a sub which is lowered by means of a wire line into a bore hole. The fluid flow in either direction within the bore hole engages and rotates helical vanes of the impeller, which in turn rot... | 08/24/1982 |
| 4316392 | Flowmeter having a rotary body and means for calibration A flowmeter having a rotary body which has at least one helical spiral on its outer periphery and which is rotatably supported in a flow channel. A first bearing is arranged upstream of the rotary body and a second bearing is arranged downstream. A first ... | 02/23/1982 |
| 4305302 | Volumetric measurement of a gas flow A volumetric direct gas meter is driven by a servomotor and the rotational speed of the motor is regulated in response to the pressure differential between the inlet and outlet ports of the meter so that the pressure tends to zero.... | 12/15/1981 |
| 4242916 | Turbine meter A turbine meter for measuring flow rates of various fluids of different coefficients of viscosity. The turbine meter has an impeller including a cylindrical body and a plurality of vanes provided on the outer peripheral surface of the cylindrical body, a ... | 01/06/1981 |
| 4187847 | Airless intravenous fluid system An intravenous fluid therapy system includes a source of intravenous fluid which is an intravenous-fluid-filled non-vented container having deformable side walls. Pressure means substantially surrounds the side walls of the source to pressurize the intrav... | 02/12/1980 |
| 4177676 | Sensor positioning apparatus A meter mounting mechanism which is hydraulically operated is disclosed. It is particularly adapted to insert and position a meter transducer in a high pressure environment. The illustrated embodiment discloses a flange-mounted mechanism for positioning a... | 12/11/1979 |
| 4155253 | Turbine flowmeter A turbine flowmeter comprises a rotor comprising a hub rotatably supported on a shaft at an axial position of a flowmeter housing and a plurality of blades embeddedly fixed to the outer peripheral surface of said hub, means for detecting the rotation of s... | 05/22/1979 |
| 4152936 | Remotely controlled retractable insertion flowmeter An insertion flowmeter apparatus for measurement of the fluid flow in a pipeline, particularly an oil and gas pipeline, utilizes a fluid-pressure actuated piston within a cylinder to insert and retract a stem having a turbine meter at the end laterally th... | 05/08/1979 |
