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| Number | Title | Issue Date |
| 4819183 | Aircraft fuel loading management system A computer-controlled aircraft fuel loading management system is disclosed. The system measures fuel loading volumetrically using flow meter devices and gravimetrically using information relating to the density (specific gravity) of the fuel being loaded ... | 04/04/1989 |
| 4787253 | Electronic display flow meter A flow meter having electrical signal outputs and a digital display is described. A transducer uses a magnet inside the flow meter to position a ball on a resistor bar and a contact bar and, thus, generate a position signal. The position signal provides a... | 11/29/1988 |
| 4782711 | Method and apparatus for measuring mass flow A method and apparatus for determining mass flow of fluid flowing within a conduit. The conduit is oscillated periodically transverse to the flow therein, and sensors sense the movement of the conduit at discrete, spaced locations on the conduit. The sens... | 11/08/1988 |
| 4773023 | Apparatus for measuring the rate of heat dissipation Apparatus for measuring the rate of sheet dissipation from a load immersed in a flowing fluid includes an upstream and downstream transducer. These transducers are located upstream and downstream of the load for providing an upstream and downstream signal... | 09/20/1988 |
| 4770843 | Controlling fuel assembly stability in a boiling water reactor A method and apparatus for controlling the stability of a boiling water reactor using a digital computer to calculate on-line, from distributed steady state values of only power, flow, enthalpy and pressure; a stability index for selected fuel assemblies ... | 09/13/1988 |
| 4716768 | Process and apparatus for determining and influencing the flow properties of solid granular material A process and apparatus for measuring the flow rate of solid granular material in which a sample holder of variable geometry is provided with an aperture containing a shutter. The aperture is opened and the material is collected and weighed. Either the ti... | 01/05/1988 |
| 4708021 | Arrangement for contactless measurement of the velocity of a moving medium The arrangement for contactless measurement of the velocity of a moving medium comprises two transducers which furnish electrical signals into which inhomogeneities of the moving medium enter depending on their spatial position in accordance with differen... | 11/24/1987 |
| 4651286 | Electromagnetic flowmeter An electromagnetic flow meter comprising an electromagnetic flow signal generator having a pipe through which a fluid to be measured flows, an exciting coil and a pair of electrodes, an exciting circuit for supplying an exciting current whose normal value... | 03/17/1987 |
| 4597050 | Apparatus for indicating flow of solid material into an earth moving device The present invention relates to the use of a solid material flow meter which utilizes a friction pad thermally connected through a thermal path of known thermal characteristics to a heat sink. Temperature sensors are positioned along the thermal path to ... | 06/24/1986 |
| 4586144 | Piping system surveillance apparatus A piping system surveillance apparatus has a CRT for displaying a graphic pattern of a piping system. Detectors are arranged in active construction members such as a valves, and pumps of the piping system so as to directly detect the presence/absence of f... | 04/29/1986 |
| 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 |
| 4581708 | Motor vehicle performance monitoring system A portable computer based motor vehicle performance monitoring system which performs vehicle characteristic measurements and calculations. The system uses a distance sensor means, a fuel volume flow sensor means, and a fuel temperature sensor means for se... | 04/08/1986 |
| 4534003 | Optimized reaction injection molding Articles made by the reaction injection molding process obtain a reduced residence time in the mold, hence increasing the production rate, by choosing processing and material parameters according to the inventive method. This method makes use of material ... | 08/06/1985 |
| 4507974 | Method and apparatus for measuring flow Flow, and in particular nonuniform flow, as in a vascular system, is measured by applying a stochastic excitation signal to a system inlet which results in a measurable output signal at a downstream system outlet. Flow rate may be extracted by cross-corre... | 04/02/1985 |
| 4495560 | Fluctuating drive system A fluctuating drive system comprises: random generating means for generating a randomly varying physical quantity; control means for controlling the randomly varying physical quantity; amplifying means for amplifying the controlled physical quantity; and ... | 01/22/1985 |
| 4494213 | Dedicated correlator A dedicated correlator receives two noise signals from spaced centers sensing noise in a fluid flow. One of the noise signals in delayed by a variable known amount with respect to the other. The amount of correlation between the delayed and undelayed sign... | 01/15/1985 |
| 4419898 | Method and apparatus for determining the mass flow of a fluid A method of determining the mass flow of a fluid comprising measuring a plurality of parameters comprising the pressure P, the temperature T and the density .rho. of the fluid, determining the specific gravity G of the fluid from the said parameters, and ... | 12/13/1983 |
| 4414634 | Fluid flow totalizer A data totalizer for use with a fluid flow chart recorder is disclosed. The chart recorder may be for a gas well to record the flow of gas into a collection pipe and such chart recorder has a movable chart, usually a circular chart, with a first marker pe... | 11/08/1983 |
| 4408497 | Electromagnetic flowmeter for measuring ferromagnetic slurries An electromagnetic flowmeter for measuring the flow rate of a ferromagnetic slurry which is conducted through a flow tube having electrodes mounted thereon, the slurry intercepting a magnetic field to induce a signal in the electrodes which depends on flo... | 10/11/1983 |
| 4404846 | Air flow rate measuring device incorporating hot wire type air flow meter The invention relates to an air flow rate measuring device making use of a hot wire type air flow meter and adapted to measure the true intake air flow rate while compensating for the error attributable to the reversing of the air. The device includes an ... | 09/20/1983 |
| 4401620 | Method and circuit arrangement for determining the individual coolant flow rate of the fuel elements of a nuclear reactor A method for determining the transit time and flowrate of coolant traversing a cooling channel of a nuclear reactor fuel element from the effective center of the fuel element to a point where the cooland exits therefrom.... | 08/30/1983 |
| 4375667 | Personal air sampling system A thermal anemometer is employed to detect the velocity of the air flowing through a personal air sampling device. A microprocessor system is employed to periodically read the signal from the thermal anemometer and calculate the sample air flow rate. The ... | 03/01/1983 |
| 4372167 | Flowmeter system with improved loop gain A flowmeter system having circuitry defining a path for confining the flow of a fluid medium therethrough, first and second transducers disposed along said flow path for generating and receiving acoustic compression waves in the fluid medium between the t... | 02/08/1983 |
| 4372166 | Flowmeter system with digital phase shifter and calibration A flowmeter system having a device defining a path for confining the flow of a fluid medium therethrough, first and second transducers disposed along said flow path for generating and receiving acoustic compression waves in the fluid medium between the tr... | 02/08/1983 |
| 4335605 | Mass flow meter A method and apparatus for applying in rapid sequence excitation voltages of significantly different amplitude to a flow transducer having a resistive temperature sensor in circuit with a reference resistor, analyzing the resetting output signals from the... | 06/22/1982 |
| 4334543 | Method and apparatus for flow velocity determination A method of determining flow velocities by measuring the phase difference between Doppler signals derived from wave pulses and reflected by substantially the same reflector at two different times, the interval between the times being predetermined, a pair... | 06/15/1982 |
| 4295197 | Infiltration-inflow sewer line analyzer A method and means of determining inflow (undesired pipe drains to a sewer) and infiltration (sewer pipe leakage) into sewer lines by a coordinate measurement of pressure in sewer pipes at several locations, particularly measuring flow during rainfall and... | 10/13/1981 |
| 4290851 | Nuclear reactor safety system A safety system (10) for shutting down a nuclear reactor under overload conditions is provided using a series of parallel-connected computer memory type look-up tables (14a, 14b, 14c, 14d, 14e) each of which receives data on a particular reactor parameter... | 09/22/1981 |
| 4257275 | Velocity detecting apparatus Noise signals from a relatively moving object, such as those caused by eddies in a fluid or by protrusions and recesses or gradation on the surface of paper or an iron plate, are sensed at two or more points spaced in the direction of the motion. A differ... | 03/24/1981 |
| 4221127 | Flow monitoring Gravity flow of liquid in sewer pipes or similar conduits is determined in the absence of a weir, flume, or similar flow-rating device by sensing the depth of the liquid in the pipe, converting such depth to the corresponding rate of flow through the pipe... | 09/09/1980 |
| 4201083 | Velocity detecting apparatus Noise signals from a relatively moving object, such as those caused by eddies in a fluid or by protrusions and recesses or gradation on the surface of paper or an iron plate, are sensed at two or more points spaced in the direction of the motion. A differ... | 05/06/1980 |
| 4199813 | Apparatus useful in exhaust dyeing The present invention relates to a novel exhaust-dyeing process to obtain level dyeings which is characterized by the step of regulating the parameters that affect the rate of adsorption of the dye onto the substrate in order to prevent the rate of bath e... | 04/22/1980 |
| 4165640 | Data collection and reduction system for a shock suppressor valve test system A data collection and reduction system for a shock suppressor valve test system is provided. The test system includes a flow meter for generating a DC voltage signal corresponding to the velocity of fluid flowing through the flow meter and a recorder for ... | 08/28/1979 |
| 4118780 | Technique for monitoring flow rate differences in water cooling conduit A technique for monitoring the frequency difference between pulse output signals derived from a pair of flowmeters interposed respectively in the inlet and outlet lines of a flow conduit supplying cooling water to the tuyere of a blast furnace, the freque... | 10/03/1978 |
| 4106099 | Refinery and pipeline monitoring system A monitor is disclosed which indicates a series of short-term losses of fluid between any two stations along a fluid flow system such as a refinery or pipeline. The series of short-term losses relates to a chain of intervals of operation of the fluid flow... | 08/08/1978 |
| 4089219 | Bi-directional output electromagnetic flowmeter A circuit arrangement for a bi-directional output electromagnetic flowmeter including a polarity-detecting circuit arranged to detect the polarity of an input derived from the flowmeter. Means are provided to invert the input polarity and switching means ... | 05/16/1978 |
| 4028939 | System for measuring three fluctuating velocity components in a turbulently flowing fluid A system for measuring fluid velocity in a turbulently flowing fluid including a sensing apparatus for dynamically sensing the mainstream and two orthogonal cross velocity components of the fluid and a transducer operative to provide three electrical outp... | 06/14/1977 |
| 4026159 | Fluidic angular rate sensor null error compensation In a fluidic angular rate sensor in which a pair of temperature sensitive resistive elements are differentially cooled by a jet of fluid, the direction of which lags the position of the resistive elements when the rate sensor is rotated in the plane of se... | 05/31/1977 |
| 3998093 | Energy monitoring system A system for monitoring and displaying the consumption of energy by measuring the actual energy consumed and comparing the measured energy consumption with an ideal or desired energy consumption. The desired energy consumption data may be based upon actua... | 12/21/1976 |
| 3965341 | Flow rate computer A method of correcting the non-linearity of flow meters to extend their usable range, including alternate means to manually enter fluid viscosity by front panel switches or by an analog to digital converter from a temperature probe. The flow rate computer... | 06/22/1976 |
