Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8074525 | Magnetic-inductive flowmeter A magnetic-inductive flowmeter for measuring the rate of flow of a flowing medium, having a measurement line, a magnetic field generating means for generating a magnetic field which at least partially penetrates the measurement line, and two measurement electrodes, ... | 12/13/2011 |
| 8051722 | Apparatus for measuring volume- or mass-flow of a medium in a pipeline An apparatus for measuring volume- or mass-flow of a medium in a pipeline. Included is a measuring tube, through which the medium flows in the direction of the longitudinal axis of the measuring tube; a magnet system, which is embodied in such a manner, that it prod... | 11/08/2011 |
| 8047080 | Electromagnetic flowmeter and zero point measurement method thereof An electromagnetic flowmeter for giving a magnetic field to a measurement fluid, detecting an electric signal occurring in the measurement fluid according to the magnetic field, and computing a flow quantity value based on the electric signal includes a zero point m... | 11/01/2011 |
| 8042410 | Magneto-inductive flow measuring device An apparatus for measuring volume- or mass-flow of a medium flowing through a measuring tube in the direction of the measuring tube axis, and includes: a magnet system, which produces a magnetic field passing through the measuring tube essentially transversely to th... | 10/25/2011 |
| 8037774 | State detection device A state detection device which detects parameters includes a measuring pipe, electrodes, an exciting coil that applies a magnetic field to the fluid, signal lines arranged at angle to the magnetic field such that an electromotive force is generated due to a change w... | 10/18/2011 |
| 8006569 | Magnetic flow meter A magnetic flow meter includes a first spud end, a second spud end, and a sensing area positioned between the first spud end and the second spud end. The sensing area has a wall thickness that is thinner than a thickness of the first spud end and the second spud end... | 08/30/2011 |
| 7992451 | Magnetoinductive flow meter having an electromagnet unit which includes combined magnetic flux-concentrating means A magnetoinductive flow meter has an electromagnet unit which is mounted on an outside periphery of a measuring tube. The electromagnet unit can include magnetic flux-concentrating device and electric coils for generating a magnetic field which is oriented substanti... | 08/09/2011 |
| 7971493 | Method for operation of a flow measurement device, and a flow measurement device itself The disclosure relates to a method for operation of a flow measurement device, and to a flow measurement device itself. In order in this case to record the conductivity of the medium or faults resulting from deposits by means of a measurement tube configuration in a... | 07/05/2011 |
| 7963173 | Magnetic flowmeter for measuring flow A magnetic flowmeter for measuring flow of a flow of process fluid, includes a flow tube arranged to receive the flow of process fluid therethrough. A magnetic drive coil proximate the flow tube is arranged to apply a magnetic field to the flow in response to a driv... | 06/21/2011 |
| 7950292 | Capacitive electromagnetic flowmeter In a constant current circuit, a constant current is caused to flow through a resistor, thereby causing a constant voltage to occur across the resistor. This constant voltage is then superimposed on an output signal of an operational amplifier that is to be fed back... | 05/31/2011 |
| 7950293 | Method for measuring flow rates in liquid melts The invention relates to a method for measuring flow rates in liquid melts in a temperature range above 200 DEG C. using an ultrasonic generator and to an associated ultrasonic waveguide according to the ultrasonic Doppler method. The aim of the invention is to prov... | 05/31/2011 |
| 7946184 | Electromagnetic flowmeter having temperature measurement value for correcting electrical conductivity value A magneto-inductive flow measuring device providing, in addition to flow information for a medium, also information concerning electrical conductivity of the medium. For a highly accurate determination of the electrical conductivity, the invention provides the follo... | 05/24/2011 |
| 7942067 | Method for measuring flow rate from electromagnetic pump A method achieving a small spatial restriction and capable of simply measuring with high precision a flow rate of a conductive fluid of an electromagnetic pump is provided. In particular, the method is suitable in measuring a flow amount of each electromagnetic pump... | 05/17/2011 |
| 7938019 | Sealed electrode assembly for fluid measurements A sealed electrode assembly for fluid measurements in a pressurized pipe having a wall, for providing contact between an electrode in contact with the fluid and the outside. The assembly includes a conductive bolt extending from the electrode and through the wall, a... | 05/10/2011 |
| 7938020 | High pressure magnetic flowmeter with stress resistant electrode assembly An electrode assembly comprises a housing, an electrode, a retainer and a potting material. The housing has a first end and a second end, with the electrode extending from the first end of the housing to a process flow. The retainer is positioned about the electrode... | 05/10/2011 |
| 7921733 | Magnetic flowmeter with coil ground path detection A magnetic flow meter includes a flowtube arranged to receive a flow of process fluid and a coil proximate the flowtube arranged to apply a magnetic field to the process fluid. A sense electrode is arranged to sense a voltage potential in the flowtube in response to... | 04/12/2011 |
| 7921735 | In-line measuring device with measuring tube The measuring tube of the in-line measuring device is lined internally with a liner. The liner is made of a polyurethane produced using a catalyst that contains metal-organic compounds. The metals that are brought into the liner and remain there are chemically, espe... | 04/12/2011 |
| 7921734 | System to detect poor process ground connections A magnetic flowmeter is disclosed that includes a pair of electrodes coupled to a process fluid and a diagnostic circuit coupled to the pair of electrodes to monitor a common mode signal. The diagnostic circuit is adapted to detect a poor ground connection associate... | 04/12/2011 |
| 7908932 | Magneto-inductive measuring transducer A measuring transducer including a measuring tube for conveying a fluid; a measuring electrode arrangement for registering electric voltages produced in the flowing fluid; as well as a magnetic field system situated externally on the measuring tube for producing a m... | 03/22/2011 |
| 7882749 | Method and apparatus for ascertaining volume- or mass-flow A method for ascertaining volume- or mass-flow of a magnetically conductive medium flowing through a magneto-inductive, flow-measuring device having a predetermined nominal-diameter, wherein a periodically alternating, magnetic field is caused to pass through the fl... | 02/08/2011 |
| 7878072 | Measurement device including an electrode head with an anchor formed on an outer peripheral portion A measurement device comprises: a container 1 including an aperture 6a; a lining 2 applied to an inner surface of the container 1; an electrode 3 provided in the aperture, and a spring 7 biasing the electrode 3... | 02/01/2011 |
| 7874218 | Capacitive electromagnetic flowmeter A measuring pipe obtained by applying an insulating resin lining to the inside of a nonmagnetic pipe is employed. A through hole reaching the resin lining is made in the sidewall of the nonmagnetic pipe, and a signal electrode and a guard electrode are arranged in t... | 01/25/2011 |
| 7866218 | Electromagnetic flow meter An electromagnetic flow meter is described having a pressure containing vessel or conduit through which the fluid to be metered is passed. The pressure containing vessel is formed of first and second sections which are made of respective materials having first and s... | 01/11/2011 |
| 7845238 | Measuring device A measuring device, embodied, for example, as an in-line measuring device and/or flow measuring device, serves for registering at least one measured variable of a medium, for example a medium flowing in a pipeline, and is made, at least in part, of a solid, biologic... | 12/07/2010 |
| 7836779 | Method for operating an electromagnetic flowmeter and electromagnetic flowmeter A method for operating an electromagnetic flowmeter and a flowmeter are provided. A measuring tube is provided with a coil arrangement for producing a magnetic field at right angles to the direction of flow. The direction of current flow in the coil arrangement is a... | 11/23/2010 |
| 7823461 | Magnetically inductive cross-flow sensor and method for the production thereof A flow sensor includes: A measuring tube for the conveying of an electrically conductive fluid; a magnetic circuit arrangement arranged on the measuring tube for producing and guiding a magnetic field, which induces an electric field in the flowing fluid; and measur... | 11/02/2010 |
| 7819020 | Integral flowmeter and valve assembly A flowmeter, in particular a magnetoinductive flowmeter, for measuring the flow rate of a moving medium has a measuring tube through which the medium is channeled and a flow-measuring device is positioned within the measuring tube. A valve housing is provided that i... | 10/26/2010 |
| 7798015 | Magneto-inductive flowmeter and measuring tube for such A measuring tube for a magneto-inductive flow meter is manufactured at least partially of a magnetically conductive material having a relative permeability, μr, essentially greater than one. ... | 09/21/2010 |
| 7770468 | Magnetic induction flowmeter having a plastic measuring tube A magnetic induction flowmeter has a plastic measuring tube (1), which can be inserted into a pipeline system, having at least two mutually opposite measuring electrodes (3) introduced into the wall of the measuring tube (1) in order to register... | 08/10/2010 |
| 7743671 | Fluid production computation apparatus using electromagnetic induction theory and fluid producing apparatus capable of computing fluid production A fluid production computation apparatus using the electromagnetic induction theory is disclosed. In accordance with an embodiment of the present invention, the fluid production computation apparatus includes a line through which a current flows according to fluid p... | 06/29/2010 |
| 7735379 | Electrode for magnetic flow sensor There is described a fluid flow sensor (10)for sensing a flow (F) of a fluid (120) through a region. The sensor (10) comprises a magnetic circuit (50, 60a, 60b) for applying a magnetic field (70) to the region,... | 06/15/2010 |
| 7673523 | Tubular insert for a magnetic inductive flow meter There is described a tubular insert for a magnetic inductive flowmeter, a production method for such a tubular insert and a flowmeter. The tubular insert essentially comprises an electrically-insulating material, in particular, rubber, reinforced with a metal mesh, ... | 03/09/2010 |
| 7665368 | Flow meter An electromagnetic flow meter for measuring flow rate of a fluid passing therethrough includes a conduit defining a fluid inlet, a fluid outlet and a measuring section positioned between the inlet and the outlet. The flow meter also includes a single coil for genera... | 02/23/2010 |
| 7650797 | Tubular insert for a magnetic induction flow meter There is described a tubular insert for a magnetically inductive flowmeter, a production method for said type of tubular insert and a flowmeter. The tubular insert is made of, essentially, an electrically-insulating material, in particular, rubber, which is reinforc... | 01/26/2010 |
| 7650796 | Apparatus for measuring and/or monitoring flow of a medium An apparatus for measuring and/or monitoring the flow of a medium to be measured, which is flowing through a measuring tube in the direction of the longitudinal axis of the measuring tube. The apparatus includes: A magnet arrangement which produces a magnetic field ... | 01/26/2010 |
| 7647840 | Plastic ultrasonic measurement section and corresponding measurement method The present invention relates to a plastic ultrasonic measurement section (1) used for the flow measurement of fluids. It is equipped with two ultrasonic transmitting and receiving transducers (2, 3) spaced in the fluid flow direction and is characteri... | 01/19/2010 |
| 7628080 | Magnetic flow meter providing quasi-annular flow An in-line magnetic flow meter has an electrically insulated quasi-annular voltage sensing path defined between an internal wall of a meter body and an outer wall of an axially disposed hollow tube. Although less than 100% of the fluid flow passes through the sensin... | 12/08/2009 |
| 7621188 | Flow meter An electromagnetic flow meter for measuring flow rate of a fluid passing therethrough includes a conduit defining a fluid inlet, a fluid outlet and a measuring section positioned between the inlet and the outlet. The flow meter also includes a single coil for genera... | 11/24/2009 |
| 7607358 | Flow rate determination of a gas-liquid fluid mixture Methods and systems are described for determining a flow rate of a gas-liquid fluid mixture in a conduit. In the described systems and methods, the fluid mixture is conditioned so that the liquid in the mixture is separated from the gas in the mixture. Properties of... | 10/27/2009 |
| 7587947 | Magnetic flow meter with selective electrode positioning A magnetic flow meter has an electrically insulating member extending inward from an inner wall of a flow tube and extending along a selected axial portion of the tube. At least one pair of electrodes are placed adjacent opposite sides of the insulating member at a ... | 09/15/2009 |
