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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7290587 | Die thermal management through coolant flow control A system and method for thermal management of a die is disclosed wherein cooling of the die is controlled by controlling coolant flow to switch between laminar flow and turbulent flow as desired. ... | 11/06/2007 |
| 7207190 | Ejector An ejector including a nozzle 17 having a high pressure space 18 into which a high pressure coolant flows from an inlet 17a and a throttle portion 17c for reducing a passage area of the high pressure coolant from the high pr... | 04/24/2007 |
| 7144511 | Two stage nanofiltration seawater desalination system The present invention is directed to a method and apparatus for desalinating seawater utilizing a two stage seawater desalination system, a first stage including at least one high performance nanofiltration membrane to receive seawater feed pressurized by a first st... | 12/05/2006 |
| 7128092 | Separating arrangement for treatment of fluids An arrangement for separating a fluid from admixtures has at least a first and a second separation unit. The separation units are of the type using an increased pressure or pressure difference for their function and have improved performance with increased pressure.... | 10/31/2006 |
| 7077207 | Double-cone device and pump The performance of a double-cone device (1) is increased, not only by moving the gap or inlet openings (22) a short distance into the exit cone (47), but also by making the conicity θ3 (55) of the so-formed small diffuser less... | 07/18/2006 |
| 7066190 | Air-driven microfluid control device and method An air-driven microfluid control device and its method are disclosed. The control device contains an air source, a first inlet, a second inlet, a narrow sector, and an outlet. The air source is connected two the two inlets to produce an airflow. The first inlet conn... | 06/27/2006 |
| 6840280 | Flow through ultrasonic processing system These and other objects of the present invention are achieved by provision of a flow through ultrasonic system for facilitating the flow of flow-resistant materials. The system includes a supply of material and an ultrasonic horn having at least one passage extendin... | 01/11/2005 |
| 6837262 | Non tank pressurizing fast fill receiver and system for vehicles A refueling system for vehicles including a dual valve receiver connected in fluid communication with the fuel tank, and a jet sensor inside of the fuel tank and in fluid communication with the receiver. The refueling system further includes a relief valve vent in f... | 01/04/2005 |
| 6701960 | Double cone for generation of a pressure difference The lifetime of a double-cone device (21) for creating a pressure difference in a streaming fluid can be greatly increased by moving the inlet gap (5) into the exit cone (4). This results in a short so-called diffuser (22) being obtained between the gap (... | 03/09/2004 |
| 6578607 | Article comprising a diffuser with flow control features A diffuser comprises a conduit having a cross-sectional area that increases in a direction fluid flow. In one embodiment, the diffuser is used to reduce the incidence and severity of flow fluctuations that occur in an electrostatic deposition apparatus. I... | 06/17/2003 |
| 6505648 | Liquid treatment by cavitation A device (10) for treating a continuously moving liquid has a liquid inlet (12) and a liquid outlet (14) at opposite ends of a generally annular passage (16). The passage has a restriction (18) which is generally cylindrical and which, at its outlet (22) ... | 01/14/2003 |
| 6450189 | Method and device for production of components for microfabrication Atomized particles within a desired size range (e.g., 1 micron to about 5 microns) are produced from two immiscible fluids, a first fluid source containing the formulation to be atomized, and a second fluid source which is contained in a pressure chamber ... | 09/17/2002 |
| 6450203 | Sealed microfluidic devices A method of controlling flow of a driven fluid in a channel, the channel being defined by an encircling wall, the method comprising the steps of sealing the channel with a sealing fluid immiscible in the driven fluid blocking the channel at an initial pos... | 09/17/2002 |
| 6152181 | Microdevices based on surface tension and wettability that function as sensors, actuators, and other devices Microdevices based on surface tension and wettability are useful as sensors, detectors, actuators, pumps, among other applications. As sensors and detectors they can respond to numerous stimuli such as pressure, temperature, gravity, rotation, acceleratio... | 11/28/2000 |
| 5983943 | Fluidic oscillator comprising an obstacle with an improved profile The invention relates to a fluidic oscillator which is symmetrical with respective to a longitudinal symmetry plane, comprising a fluid inlet intended to form a bidimensional fluid jet which oscillates transversally with respective to the symmetry plane, ... | 11/16/1999 |
| 5771684 | Gas treatment systems Flow diverter methods and apparatus useful, for example, in adsorber systems capable of meeting the California ultra-low emission vehicle (ULEV) standard, are described, the adsorber systems incorporating a combination of a burn-off catalyst and a modifie... | 06/30/1998 |
| 5638867 | Fluidic oscillator having a wide range of flow rates, and a fluid meter including such an oscillator The invention provides a fluidic oscillator which is symmetrical about a longitudinal plane of symmetry (P), the oscillator comprising means for generating an oscillating two-dimensional fluid jet, an obstacle provided in its front portion with a cavity t... | 06/17/1997 |
| 5363704 | Fluidic oscillator and a flow meter including such an oscillator A fluidic oscillator and a flow meter including such a fluidic oscillator comprising a fluid inlet suitable for forming a two-dimensional jet: an obstacle possessing a front portion in the form of a chamber facing the inlet on the path of the jet, said ch... | 11/15/1994 |
| 5285812 | Jet level sensor for fuel tanks A jet level sensor used for controlling the liquid level in a tank such as a fuel tank. The sensor includes a nozzle and receiver supported within a bracket so that the nozzle and receiver and the associated conduits are freely rotatable with respect to t... | 02/15/1994 |
| 5129585 | Spray-forming output device for fluidic oscillators A spray-forming output device for fluidic oscillators to provide relatively wide-angle three-dimensional output spray patterns is connected to the output of a fluidic oscillator. The device comprises mutually counter-directed conduits whose entry regions ... | 07/14/1992 |
| 5111847 | Pneumatic actuator A pneumatic actuator comprises a cell through which a normally laminar flow of air passes between an inlet and an outlet to provide, in the outlet, an output pressure. The cell includes an electro-acoustic transducer, for example a piezo-electric element ... | 05/12/1992 |
| 4716935 | Fluidic rectifier A full wave fluidic rectifier which produces a direct fluidic output signal having an amplitude which increases from a very low level as the amplitude of an alternating fluidic input signal increases. In includes a nozzle for directing a fluid stream alon... | 01/05/1988 |
| 4617970 | Fluidic sensor of objects A fluidic sensor of objects comprising a body in which there are mounted an emitting nozzle connected to a feeding chamber connected to a feeding conduit, and an intake nozzle disposed in the area defined by the emitting nozzle and connected to an outlet ... | 10/21/1986 |
| 4596364 | High-flow oscillator A small, but nevertheless high-flow fluidic oscillator has a dual level body portion including an interaction chamber in a first level. An inlet plenum supplies fluid to a supply nozzle which enters directly into the inlet end of the interaction chamber t... | 06/24/1986 |
| 4532962 | Metering apparatus for dispensing precise volumes of liquid An apparatus is disclosed for dispensing a precise volume of liquid. An emitter dispenses a stream of liquid to an appropriate collector and includes an outlet restriction for generating a positive pressure in the emitter behind the outlet restriction. Li... | 08/06/1985 |
| 4522228 | Fluidic level control system A liquid level control system for controlling the flow of liquid into a reservoir, storage tank or other container. A nozzle develops a liquid flow stream therethrough, and a valve effectively opens and closes the nozzle. A fluid amplifier is associated w... | 06/11/1985 |
| 4515178 | Liquid level control device A fluid amplifier for sensing the level of a liquid in a reservoir, storage tank or other container and for generating a differential in pressure signal in response to the static presence of the liquid level at a predetermined level. An inlet develops a l... | 05/07/1985 |
| 4479515 | Fluidic control devices A fluidic flow control device includes at least three terminals with two of the terminals being connected to input nozzles opposing each other in axial alignment. An interspace is provided adjacent the point of intersection of the two streams from the noz... | 10/30/1984 |
| 4459106 | Dental apparatus A main valve and separate sensing means are mounted in a housing spaced-apart relation. The main valve is formed with a valve chamber having an inlet port and an outlet port, and the valve comprises a valve seat and a valve member cooperating therewith. T... | 07/10/1984 |
| 4345618 | Arrangement for the regulation of the height of a liquid level Arrangement for the regulation of the height of a liquid level, such arrangement being particularly suitable for the removal of condensate from the regeneration heaters of steam turbines. The arrangement includes a transmitter nozzle for forming a gas-liq... | 08/24/1982 |
| 4312373 | Internal valve An internal valve for the bottom loading of fuel tanks consists of a differential area piston acting within a chamber which is vented by a pair of pilot valves responsive to fluid level, to provide full open, throttled and closed positions of the valve au... | 01/26/1982 |
| 4224985 | Containment of pressurized fluid jets Apparatus for containing a pressurized fluid jet, for example a "blow-out" of oil, comprises a receptacle of preferably frusto-conical form for holding a body of liquid such as water, and means whereby the jet can enter the receptacle, the arrangement bei... | 09/30/1980 |
| 4211249 | Liquid level control system A liquid level control system is disclosed for use with a swimming pool or the like having a pool reservoir, a main drain or outlet, usually at the bottom of the reservoir, and an outlet located at a predetermined water maintenance level for the pool. The... | 07/08/1980 |
| 4203462 | Water level control system The solenoid operated water valve has a Venturi on its outlet which aspirates air through the pressure sensing side of a pressure switch until the water level in the washing machine reaches the end of the tube connected to the system through the selection... | 05/20/1980 |
| 4194390 | Method of and apparatus for ascertaining the state of aggregation of a medium A method of ascertaining the state of aggregation of a medium, whereby the flow of the medium is directed to a first of a series of two or more coaxially arranged nozzle means, further the initial pressure of said medium ahead of said series of nozzle mea... | 03/25/1980 |
| 4182486 | Fluidic flow sensing and control apparatus In a system to control a condition of air in a duct, there is disclosed a first nozzle for issuing a jet of fluid, a second nozzle for receiving a portion of said fluid depending upon the condition of the air in the duct, and a circuit arrangement for con... | 01/08/1980 |
| 4161188 | Jet type liquid level sensor and system A jet type liquid level sensor and its combination with a fluid pressure operated valve whose opening and closing is controlled by the sensor at predetermined liquid levels within a tank in which the sensor and valve are installed. The sensor is designed ... | 07/17/1979 |
| 4121620 | Device for simultaneous modulation and amplification of low frequency sounds A device for simultaneously modulating and amplifying low frequency sounds which comprises a tubular member having an axial bore extending a distance interiorly of the inlet end thereof and tapering to a reduced axial bore in said tubular member. A genera... | 10/24/1978 |
| 4120322 | Hydro-fluidic temperature sensor and control system A hydraulic turbulence amplifier is provided for measuring and controlling the temperature of a liquid supplied to the power nozzle of the amplifier, i.e., the working fluid. As a result of the high pressures at which the laminar-to-turbulence flow transi... | 10/17/1978 |
| 4094284 | Emission control system Exhaust gas is recirculated to an intake manifold of an engine by a shut-off valve and a fluidic amplifier for modulation in accordance with different engine parameters. The shut-off valve is normally biased to a closed position and it is opened to permit... | 06/13/1978 |
