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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 8136414 | Flow metering An improved flow meter, which has diagnostic capabilities due to the reading of total pressure head loss, calculation of corresponding flow rate and comparison with flow rates calculated from other differential pressures. ... | 03/20/2012 |
| 8061219 | Flow restriction insert for differential pressure measurement A flow rate device for measuring the flow rate of a fluid flowing through a wellbore is disclosed. The flow rate device includes a differential pressure conduit, a flow restrictor insert and a differential pressure measurement device. The differential pressure condu... | 11/22/2011 |
| 7987733 | Determination of density for metering a fluid flow Systems and methods are disclosed for measuring densities and flow rates of gas-liquid fluid mixtures. In the systems and methods, the fluid mixture is caused to exhibit swirling flow as it flows through a conduit that includes a constriction, a first pressure diffe... | 08/02/2011 |
| 7938023 | Wet-gas flowmeter Methods and apparatus determine phase fractions for phases within a fluid mixture flow under a wide range of flow conditions including wet-gas flow. Appropriate flow algorithms can utilize this phase fraction information with a total flow rate of the mixture to find... | 05/10/2011 |
| 7934433 | Inverse venturi meter with insert capability An insert meter can be run into an inverse venturi on wireline and make use of the existing pressure taps to allow accurate measurement of reduced flow rates that could not be accurately measured with the inverse venturi meter. The insert meter has seals and can loc... | 05/03/2011 |
| 7810401 | Apparatus and method for operation in the laminar, transition, and turbulent flow regimes An apparatus for determining fluid flow in a pipe apparatus includes a fluid nozzle in contact with the pipe having a contour without negative pressure gradients along the nozzle's surface as fluid flows through the nozzle. The apparatus includes a transit time ultr... | 10/12/2010 |
| 7730793 | Venturi flow sensor A venturi flow sensing method, system, and apparatus. A tube or chamber may be tapered from a larger to smaller diameter to create a venturi region within the tube or chamber. The venturi region causes a local increase in flow velocity. The change in velocity create... | 06/08/2010 |
| 7703338 | Steam meter A flowmeter detects a differential pressure of steam as the steam passes through a conduit with a feature shaped to produce changes in velocity and pressure of the steam. Taps used to enable detection of the differential pressure extend from a wall of the conduit up... | 04/27/2010 |
| 7658117 | Flow meter using an expanded tube section and sensitive differential pressure measurement A method and apparatus for measuring the flow rate of a fluid within tubing disposed within a downhole wellbore. The present invention provides an inverse Venturi meter inserted within tubing with an enlarged inner diameter portion. Pressure differential is measured... | 02/09/2010 |
| 7654155 | Wet-gas flowmeter Methods and apparatus determine phase fractions for phases within a fluid mixture flow under a wide range of flow conditions including wet-gas flow. Appropriate flow algorithms can utilize this phase fraction information with a total flow rate of the mixture to find... | 02/02/2010 |
| 7654156 | Distal tip of fluid velocity probe A distal tip of a fluid velocity probe generally includes at least a portion of a housing having first and second sidewalls defining a passageway therebetween, the passageway having inlet and outlet regions. The first and second sidewalls each are substantially symm... | 02/02/2010 |
| 7624652 | Method and apparatus for tomographic multiphase flow measurements A method for determining the flow rates of a fluid comprising a multi-component mixture of a gas and at least one liquid in a pipe, the method comprising the following steps: a) the multi-component mixture flow is conditioned to create a symmetrical annular gas conc... | 12/01/2009 |
| 7610818 | Flow meter for bitumen froth pipelines A method and apparatus for measuring the flow rate of bitumen froth through a pipeline is provided. A flow meter device is provided including a conduit comprising an approach section having a diameter less than the diameter of the pipeline and a venturi section havi... | 11/03/2009 |
| 7562587 | Determination of density for metering a fluid flow Systems and methods are disclosed for measuring densities and flow rates of gas-liquid fluid mixtures. In the systems and methods, the fluid mixture is caused to exhibit swirling flow as it flows through a conduit that includes a constriction, a first pressure diffe... | 07/21/2009 |
| 7472608 | Flangeless differential pressure transmitter for industrial process control systems An industrial pressure transmitter, for use in industrial process control systems, comprises a differential pressure sensor and an integrated process connector connected to the differential pressure sensor. A process fluid flow duct extends through the process conne... | 01/06/2009 |
| 7451663 | Wear-resistant flow meter tube A flow meter tube is provided having improved performance in the measurement of the flow rate of erosive material. The internal wall surface of the flow meter tube has a smooth erosion-resistant coating thereon to protect the flow meter wall from erosion by the eros... | 11/18/2008 |
| 7437951 | Method of using a differential pressure type flowmeter 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 therethrough that comprises a first channel (178)... | 10/21/2008 |
| 7434479 | Method and an arrangement for the flow monitoring of multiphase mixtures An arrangement (10) for the determination of the mass flow and of the gas/liquid ratio in a multiphase mixture during conveying includes—in the conveying direction (9)—a first venturi nozzle (5.1), a pump (1) and, after the pump, a se... | 10/14/2008 |
| 7367239 | Piezocable based sensor for measuring unsteady pressures inside a pipe A piezocable-based sensor for measuring unsteady pressures inside a pipe comprises at least one cable extending around at least a portion of a circumference of the pipe. The cable includes a first electrical conductor, a piezoelectric material disposed around the fi... | 05/06/2008 |
| 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 cylindrical tube. The outer cylindrical tube is radially spaced from the cy... | 04/15/2008 |
| 7359803 | Apparatus and method for measuring parameters of a mixture having solid particles suspended in a fluid flowing in a pipe An apparatus 10,70 and method is provided that includes a spatial array of unsteady pressure sensors 15-18 placed at predetermined axial locations X1-XN disposed axially along a pipe 14 for measuring at least one par... | 04/15/2008 |
| 7354190 | Two-stage mixing system, apparatus, and method A two-stage mixing system, apparatus, and method produces a solution including a first substance and a second substance in a predetermined ratio by first mixing the first substance with a first liquid to produce a first solution and then mixing the first solution wi... | 04/08/2008 |
| 7349831 | River assessment, monitoring and design system A method, apparatus and program product to facilitate the analysis and monitoring of stream and river conditions, with emphasis on Natural River Design. To this end, the invention uses and processes channel data to provide analysis and monitoring information and opt... | 03/25/2008 |
| 7342504 | Monitoring system and method A monitoring system includes one or more monitoring devices, positioned in sewer manholes, storm drains, etc., and a remote monitoring station that communicates wirelessly therewith. The monitoring device may be an integrated unit, including sensors, a two-way telem... | 03/11/2008 |
| 7342506 | Wireless remote monitoring system A remote monitoring system is described which enables monitoring of flow meters or other scientific instruments from a remote location using the GSM cellular phone network. The system includes a wireless modem utilizing the GSM cellular phone network, a central proc... | 03/11/2008 |
| 7335334 | Active air removal from an extracorporeal blood circuit A disposable, integrated extracorporeal blood circuit employed during cardiopulmonary bypass surgery performs gas exchange, heat transfer, and microemboli filtering functions in a way as to conserve volume, to reduce setup and change out times, to eliminate a venous... | 02/26/2008 |
| 7328624 | Probe for measuring parameters of a flowing fluid and/or multiphase mixture A probe 10,170 is provided that measures the speed of sound and/or vortical disturbances propagating in a single phase fluid flow and/or multiphase mixture to determine parameters, such as mixture quality, particle size, vapor/mass ratio, liquid/vapor ratio, ... | 02/12/2008 |
| 7320252 | Flow meter using an expanded tube section and sensitive differential pressure measurement A method and apparatus for measuring the flow rate of a fluid within tubing disposed within a downhole wellbore. The present invention provides an inverse Venturi meter inserted within tubing with an enlarged inner diameter portion. Pressure differential is measured... | 01/22/2008 |
| 7316166 | Method and system for analyzing multi-phase mixtures A method and apparatus is disclosed for identifying changes in composition in a flow containing an oil/hydrocarbon gas fluid mixture, including a measurement of the respective holdups of any two of the gas, oil and water; and measurements to determine attenuation or... | 01/08/2008 |
| 7311821 | Water circulation unit with increased throughput for swimming pools, and filter unit comprising the same A water circulation unit includes an ejector (142), a convergent, and a pipe (146) which is arranged in the extension of the convergent. The ejection axis practically merges with the symmetry axis of the convergent, the two axes forming a common axis o... | 12/25/2007 |
| 7299707 | Eccentric venturi flow meter A venturi type of primary flow element comprising a tubular body defining a flow path having open ends and walls and including in series, a converging section, a cylindrical throat section, and a diverging section, where the bottom walls of each of said sections are... | 11/27/2007 |
| 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 meter comprises a water content meter (7) that provides a signal ... | 11/13/2007 |
| 7292143 | Remote sensing and communication system A remote sensing system and method for instrumenting the entries to manhole enclosures, in order to provide a platform and means for sensing environmental parameters within and around the enclosures and wirelessly transmitting those parameters to a distant site. The... | 11/06/2007 |
| 7281415 | Non-intrusive multiphase flow meter Embodiments of the present invention generally provide methods, apparatus, and systems for determining void fractions of individual phase components of a multiphase mixture. The void fractions may be determined based on measured parameters of the mixture as a whole,... | 10/16/2007 |
| 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 wedge attached to the interior surface of the cylindrical body with hig... | 10/16/2007 |
| 7278981 | Disposable cartridge for a blood perfusion system A disposable cartridge for use in extracorporeal blood perfusions systems that have a control unit for controlling the flow of fluids. The cartridge has a housing defining a plurality of internal passageways that connect to a cardiopulmonary circuit, a cardioplegia ... | 10/09/2007 |
| 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 therethrough that comprises a first channel (178)... | 08/28/2007 |
| 7240568 | Method and apparatus for determining the gas flow rate of a gas-liquid mixture A method and apparatus are provided for determining the gas flow rate of a gas-liquid mixture which has a gas volume fraction (GVF) of at least 85% and which is conveyed along a conduit. The conduit is fitted with a differential pressure flow meter and a fluid densi... | 07/10/2007 |
| 7240730 | Use of fiber optics in deviated flows A system to determine the mixture of fluids in the deviated section of a wellbore comprising at least one distributed temperature sensor adapted to measure the temperature profile along at least two levels of a vertical axis of the deviated section. Each distributed... | 07/10/2007 |
| 7228750 | Apparatus and method for measuring fluid flow A method and apparatus for fluid flow straightening and measurement introduces a high beta nozzle or venturi in-line with existing conduit. A fluid velocity measuring device is positioned in the throat of the high beta nozzle and measurements of velocity at multiple... | 06/12/2007 |
