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| Number | Title | Issue Date |
| 7200486 | Apparatus for estimating quantity of intake air for internal combustion engine An intake-air quantity estimation apparatus for an internal combustion engine, including an intake-air quantity estimation device that includes a cylinder pressure estimation device that estimates pressure within a cylinder through calculation using a model of the c... | 04/03/2007 |
| 7198450 | Unloading system for an agricultural combine An agricultural combine including an unloading system wherein an unloading conduit assembly is, in an operational set-up, rotatable or swivelable through an arc of 360° to permit grain unloading into a grain truck located at any point around the combine, whether th... | 04/03/2007 |
| 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 |
| 7036365 | Device for measuring the total pressure of a flow The invention relates to the measurement of the total pressure of a fluid flow, especially the total pressure of the airflow surrounding an aircraft. The invention proposes to replace a pitot tube with a device in which at least two fluid streams are taken off from ... | 05/02/2006 |
| 6941736 | Harvester control A control system for a grain harvester. The control system monitors the output of a grain sensor and uses the monitored value to actuate one or more relays having different energization levels. As each relay is actuated it completes a circuit, which is used to modif... | 09/13/2005 |
| 6915705 | Flow sensor and flow resistive element A flow sensor is disclosed that measures a flow of fluid passing through a conduit and a flow resistive element for use in such a flow sensor. The flow sensor includes a housing having a main channel defined therethrough. A flow resistive element is disposed in the ... | 07/12/2005 |
| 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 pattern which is capable of flow measurement. In one embodi... | 11/11/2003 |
| 5905208 | System and method measuring fluid flow in a conduit A system for measuring fluid mass flow in a conduit in which there exists a pressure differential in the fluid between at least two spaced-apart locations in the conduit. The system includes a first pressure transducer disposed in the side of the conduit ... | 05/18/1999 |
| 5886267 | System and method for bidirectional flow and controlling fluid flow in a conduit A system for measuring bidirectional flow, including backflow, of fluid in a conduit. The system utilizes a structural mechanism to create a pressure differential in the conduit. Pressure sensors are positioned upstream from the mechanism, at the mechanis... | 03/23/1999 |
| 5827977 | Device and method for measuring multi-phase fluid flow and density of fluid in a conduit having a gradual bend A system for measuring fluid flow in a conduit having a gradual bend or arc, and a straight section. The system includes pressure transducers, one or more disposed in the conduit on the outside of the arc, and one disposed in the conduit in a straight sec... | 10/27/1998 |
| 5717146 | Device and method for measuring multi-phase fluid flow in a conduit having an abrupt gradual bend A system for measuring fluid flow in a conduit having an abrupt bend. The system includes pressure transducers, one disposed in the conduit at the inside of the bend and one or more disposed in the conduit at the outside of the bend but spaced a distance ... | 02/10/1998 |
| 5456121 | Pivotable vane flowmeter with capacitive position sensor A pivotable vane flowmeter comprises at least one pivotable vane disposed pivotably about a pivot axis parallel to the the direction of fluid flow and experiencing a fluid dynamic torque created by the fluid flow, a bias spring or counter-weight providing... | 10/10/1995 |
| 5230251 | Flowmeter A flow meter for determining the flow rate of a stream of material such as a fluid stream or a stream of particles comprising a guide for guiding the material to be measured along a predetermined path and having an entry end and an exit end. A transducer ... | 07/27/1993 |
| 5044209 | Reaction force flowmeter An apparatus for measuring the momentum flow rate of fluid comprises a first conduit extending from one extremity thereof connected to an inlet leg and secured to a support, a second conduit extending from one extremity thereof connected to an outlet leg ... | 09/03/1991 |
| 5036712 | Inertia force flowmeter An apparatus for measuring flow rate of media comprises at least one protruding section of a conduit disposed in an over-hanging arrangement, a force sensor measuring the force experienced by an over-hanging portion of the protruding section of the condui... | 08/06/1991 |
| 5033313 | Inertia force flowmeter An inertia force flowmeter comprises at least one protruding conduit disposed on a curved plane in a cantilever-like arrangement, that experiences inertia force of media moving therethrough that is proportional to the mass flow rate of the media times the... | 07/23/1991 |
| 5009248 | Flowmeter In a flow meter, a detective core (5) is slidably fitted in a cylindrical chamber (3a) in a main body (2), and a fluid is introduced at a predetermined angle from inflow passageways (17) into the interior of this detective core (5), the fluid introduced i... | 04/23/1991 |
| 4986135 | Apparatus and method for measuring fluid flow and density The invention utilizes a conduit, having an input, an output, and a central region therebetween, in conjunction with a nozzle having an inlet, a restricted outlet and a thin-wall throughput region, to measure fluid flow. The nozzle inlet sealingly coopera... | 01/22/1991 |
| 4969364 | Flowmeter In a flow meter, a detective core (5) is fitted in a cylindrical chamber (3a) in a main body (2), and a fluid is introduced at a predetermined angle from inflow passageways (17) into the interior of this detective core (5), the fluid introduced into the d... | 11/13/1990 |
| 4860594 | Apparatus and method for measuring mass flow and density The invention utilizes a segment of thin wall tubing which has an inlet, an outlet and a central region therebetween to measure flow. The central region is provided with two zones of different area. The meter is provided with a means to measure the elasti... | 08/29/1989 |
| 4856347 | Method and apparatus for measuring the flow rate and velocity of a liquid in a pipeline A flow meter for determining the flow rate of a liquid or slurry flowing in a pipeline or similar conduit. The flow meter is capable of metering the flow of a multiple-phase medium such as a gas-oil combination from a sub sea oil well. The meter includes ... | 08/15/1989 |
| 4848123 | Shot peening mass flow and velocity sensing system and method Consistency in shot peening is obtained by a system which uses a force sensor to sense the reaction force from a shot peening gun in combination with a magnetic densitometer sensing coil disposed at the outlet of the nozzle of the shot peening gun. A sign... | 07/18/1989 |
| 4781070 | Flow meter Apparatus for measuring mass flow of a fluid in a conduit by which the fluid passes through a moveable chamber which establishes a constant velocity profile of the flowing fluid at the outlet opening of the chamber. Measurement of momentum force at the co... | 11/01/1988 |
| 4765190 | Flow metering device In a combine harvester having a clean grain conveyor, a clean grain weight rate metering device is provided generally at the discharge end of said conveyor. The weight rate metering device includes a sensor member disposed to be acted upon by the clean gr... | 08/23/1988 |
| 4722232 | Mass flow meter A mass flow meter in which the mass flows along a path having a bend in one sense on one side of a pivot axis and a bend in an opposite sense on the other side of the pivot axis. When the material flows through the device a force is applied to part of the... | 02/02/1988 |
| 4677859 | Flow meter A flow meter suitable for the measurement of the mass flow rate of two phase flows. The flow meter has an S-shaped flow tube located within a housing. The housing has an inlet and outlet which are in register with the inlet and outlet of the flow tube. Th... | 07/07/1987 |
| 4612814 | Flow meter and densitometer apparatus The instrument disclosed herein is designed for measuring flow rates and densities of moving fluid streams, including liquids, gases, slurries, and fluids which contain solid materials. In one embodiment of this instrument, a conduit section, which has a ... | 09/23/1986 |
| 4569232 | Reaction mass flowmeter A flowmeter particularly adapted for measuring the mass flow rate of a mixture of pulverized coal and air. An orifice flowmeter is located in a conduit carrying the mixture, and a reaction mass flowmeter is connected to the conduit either upstream or down... | 02/11/1986 |
| 4513625 | Flow meter and densitometer apparatus and method of operation The instrument disclosed herein is designed for measuring flow rates and densities of moving fluid streams, including liquids, gases, slurries, and fluids which contain solid materials. Basic components of this instrument are a dynamic leg and a static le... | 04/30/1985 |
| 4393723 | Fluid flow meter A fluid flow meter with a turbine rotationally supported within a transparent cylindrical housing and biased against its rotational response to the flow of fluid whereby flow rates are read on a circumferential scale mounted on the turbine. In an alternat... | 07/19/1983 |
| 4363991 | Drag modification piezoelectric panels Disclosed is a method and means to increase or decrease, on demand, the drag exerted by a fluid on a boundary. The boundary comprises a surface portion of a structure enclosing a moving fluid or may comprise a portion of the outer surface of an object mov... | 12/14/1982 |
| 4291584 | Stalled turbine flow meter A turbine flow meter is disclosed of the type including a turbine rotor disposed in a fluid flow passage, the turbine receiving the fluid flow to be measured and mounted so as to restrain rotary movement in reaction to the change of momentum imposed on th... | 09/29/1981 |
| 4012959 | Pressure gauge and flow meter Devices relying on the Inverse Wiedman Effect. Devices include a current conductive, magnetically anisotropic rod, through which an AC current flows. Wound about the rod is a conductive coil having output terminals. By varying the AC current, the anisotro... | 03/22/1977 |
| 3978731 | Surface acoustic wave transducer Surface acoustic waves are propagated across a thin, flexible diaphragm which is subjected to an applied external pressure. Since the wave velocity and path length vary with diaphragm deformation, the acoustic wave delay time is a function of the applied ... | 09/07/1976 |
