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| Number | Title | Issue Date |
| 7832430 | Loss reduction apparatus Loss reduction apparatus for a fluid transfer system includes a fluid device. The fluid device defines a first fluid path along which a greater part of a fluid flows in a first condition, and a second fluid path along which a greater part of the fluid flows in a sec... | 11/16/2010 |
| 7404416 | Apparatus and method for creating pulsating fluid flow, and method of manufacture for the apparatus In one embodiment, the present invention provides an apparatus for creating pulsating fluid flow, including an inlet into which fluid flows and a chamber having an upstream end and a downstream end. The chamber is defined by a pair of outwardly-projecting sidewalls,... | 07/29/2008 |
| 7055541 | Method and mechanism for producing suction and periodic excitation flow A method and mechanism of producing a suction and periodic excitation flow. The method includes providing fluid flow from jet port with diameter dl at a controlled input pressure (Pin), directing the flow to a conduit with diameter d2, >d1, allowing additional fluid... | 06/06/2006 |
| 6976507 | Apparatus for creating pulsating fluid flow A fluidic oscillator is disclosed, wherein the fluidic oscillator includes a fluid source and a housing coupled to the fluid source. At least one recess is formed within the housing. An insert resides within each at least one recess; the insert provides at least one... | 12/20/2005 |
| 6904626 | Fluidic spa nozzle There is disclosed a fluidic spa tub nozzle having a fluidic oscillator with diverging sidewalls and a cooperating mode-change member for changing the mode from an oscillatory swept jet mode to a straight jet mode and positions thereinbetween. The fluidic oscillator... | 06/14/2005 |
| 6553844 | Property-independent volumetric flowmeter and sonic velocimeter A single fluidic feedback oscillator incorporates two independent time event measurement means, resulting in a highly accurate volumetric flowmeter that is independent of the properties and composition of the flowing fluid. Under certain circumstances, wh... | 04/29/2003 |
| 6457658 | Two-level nozzles with integrated or built-in filters and method A molded fluid device having a power nozzle with a width W and a coupling passage coupling a source of fluid to the power nozzle. The coupling passage is formed on one chip or insert surface and has a planar enlargement and a plurality of posts spaced acr... | 10/01/2002 |
| 6253782 | Feedback-free fluidic oscillator and method A fluidic oscillator includes a member having an oscillation inducing chamber, at least one source of fluid under pressure, at least a pair of power nozzles connected to the at least one source of fluid under pressure for projecting at least a pair of flu... | 07/03/2001 |
| 6250132 | Method and apparatus for real time gas analysis A modular apparatus for analyzing a fluid includes a disposable fluidic sensor module, a replaceable transducer module, and an expendable electronics package. The disposable fluidic sensor includes a fluidic flowmeter and a capillary structure formed in a... | 06/26/2001 |
| 6186409 | Nozzles with integrated or built-in filters and method A molded fluidic device having a power nozzle with a width W and a coupling passage coupling a source of fluid to said power nozzle. The coupling passage has a planar enlargement and a plurality of posts spaced across the enlargement, the spacing S betwee... | 02/13/2001 |
| 5906224 | Reserve fuel valve and method for making An improved, panel-mounted fuel reserve valve for a recreational vehicle fuel system. The valve body is molded plastic with a cruciform-symmetrical arrangement of throughbores defining the fuel inlets, the fuel outlet and a valve bore for receiving an int... | 05/25/1999 |
| 5820034 | Cylindrical fluidic circuit A fluidic oscillator comprises a housing having interior walls defining a cylindrical space therein, a fluidic oscillator is mounted in said cylindrical space and has an oscillating chamber having an upstream end and a downstream end. A power nozzle issue... | 10/13/1998 |
| 5749525 | Fluidic washer systems for vehicles A vehicle washer nozzle system having a source of washer liquid under pressure, a fluidic oscillator comprising a housing and a fluidic insert having a power nozzle, an oscillation chamber having an upstream end coupled to the power nozzle for issuing a j... | 05/12/1998 |
| 5626166 | Temperature control valve without moving parts The present invention relates to a temperature control valve having no mog parts. The temperature control valve has a fluid inlet and a fluid outlet. A fluidic amplifier communicates with the fluid inlet and is characterized by a first outlet port for di... | 05/06/1997 |
| 5524660 | Plate-type spray nozzle and method of use A plate-type nozzle and a method of using same to atomize a liquid are disclosed, wherein the nozzle contains at least one nozzle plate having formed on a common facial surface thereof at least one atomization chamber containing: an inlet for a liquid str... | 06/11/1996 |
| 5448969 | Fluidic burner A gas burner comprising a gas manifold feeding an array of fluidic oscillators. Each fluidic oscillator has a power nozzle connected to the gas manifold and an outlet for issuing a sweeping jet of gas to ambient. Each fluidic oscillator is spaced a predet... | 09/12/1995 |
| 5195560 | Adjustable low frequency hydrofluidic oscillator A hydrofluidic oscillator including a momentum exchange fluidic amplifier coupled to a four-way reciprocal valve. The four-way valve is connected to control flow of hydraulic fluid from a source thereof to a using apparatus. The fluidic amplifier is conne... | 03/23/1993 |
| 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 |
| 4982753 | Wafer etching, cleaning and stripping apparatus A wafer stripping, cleaning and etching apparatus includes a bowl, a table in the bowl carrying cassette of wafers, and a spray post with multiple fluid passages and ports directing fluid spray against the wafers.... | 01/08/1991 |
| 4955547 | Fluidic oscillating nozzle A fluidic oscillating nozzle that oscillates a fluid jet at high frequency by the use of fluidic amplification technology with no moving parts. The jet that issues from the nozzle is a zero-degree jet of fluid that maintains a very high energy density; ho... | 09/11/1990 |
| 4943007 | Spray generators A spray generator for producing a spray of liquid droplets of a narrow size spectrum in which a substantially uniform cyclic disturbance is imposed on fluid energing at a nozzle. Such a disturbance can be produced by a fluidic bistable oscillator or by al... | 07/24/1990 |
| 4905909 | Fluidic oscillating nozzle A fluidic oscillating nozzle that oscillates a fluid jet at high frequency by the use of fluidic amplification technology with no moving parts. The jet that issues from the nozzle is a zero-degree jet of fluid that maintains a very high energy density; ho... | 03/06/1990 |
| 4844128 | Inhanced output opto-fluidic device An enhanced output opto-fluidic device includes three plates which together bound a number of passages including an interaction passage, an inlet channel including which opens into one of such ends, and two outlet channels which open into the other end of... | 07/04/1989 |
| 4838091 | Fludic oscillator flowmeters A fluidic-oscillator type flowmeter has an inlet nozzle (1) leading into a chamber (2) with diverging side walls (3a, 3b). A splitter (8) has a blunt end opposite the inlet nozzle and defines outlet paths (4a, 4b) which lead from the chamber. The shape an... | 06/13/1989 |
| 4833880 | Fluidic set point amplifier apparatus and method, and uses thereof A fluidic set point amplifier provides an output signal which is strongly linear with respect to pressure of fluid supply, free of hysteresis, and has a zero crossing (set point) at a determined value of supply pressure. Uses of the set point amplifier in... | 05/30/1989 |
| 4774975 | Method and apparatus for providing oscillating contaminant-removal stream For removal of the contaminant deposits from a surface such as a tube sheet of a vertical tube heat exchanger, as in a nuclear steam generator, having plural spaced heat exchange tubes connected to the tube sheet, a lance is radially moved along the tube ... | 10/04/1988 |
| 4733695 | Fluidic set-point pressure sensor A modified laminar proportional amplifier with feedback for converting the absolute pressure of a pressurized fluid to a differential pressure indicating the pressure of the pressurized fluid relative to a predetermined set-point pressure. The device incl... | 03/29/1988 |
| 4678009 | Fluidic complementary gain changing circuit A fluidic complementary gain changing circuit has three laminar proportio amplifiers, one of which supplies fluid pressure streams to the other two. The latter amplifiers have substantially identical geometries and complementary gain curves at any given ... | 07/07/1987 |
| 4570675 | Pneumatic signal multiplexer An invention is disclosed in which a fluidic counter generates fluidic switching signals in response to a fluidic oscillator for sequentially activating a plurality of fluidically activated electrical switches for multiplexing a plurality of electrical co... | 02/18/1986 |
| 4565220 | Liquid metering and fluidic transducer for electronic computers The invention relates to fluidic transducers of electrical signals from an electronic computer for accurately metering flow of a liquid to a utilization device. A liquid filled hollow channel means is accelerated along the flow axis thereof to produce a f... | 01/21/1986 |
| 4562867 | Fluid oscillator There is disclosed a fluidic oscillator in which a stream of fluid is directed against a barrier member in an oscillation chamber. The barrier member serves as one wall of the oscillation chamber and in conjunction with other shaped wall surfaces of the o... | 01/07/1986 |
| 4523611 | Fluidic absolute-to-differential pressure converter A method and apparatus for converting the absolute pressure of a pressuri fluid to a differential pressure indicating the fluid pressure relative to a reference pressure. The pressurized fluid is directed asymmetrically into a laminar proportional amplif... | 06/18/1985 |
| 4508267 | Liquid oscillator device The liquid spray includes an oscillator for producing a fan spray with liquid droplets of uniform size. The oscillator is constituted by a power nozzle, a pair of side walls forming a pair of vortice spaces offset from the power nozzle, a pair of inwardly... | 04/02/1985 |
| 4508127 | Fuel mass flow measurement and control system A turbine engine fuel measuring and control system which incorporates a fluidic density sensor which is unaffected by variations in the physical characteristics of the fuel supplied to the engine.... | 04/02/1985 |
| 4482366 | Pulse-type cleaning means for filter panels The process of removing embedded particulates from the pore surfaces of an ngine air cleaner (pleated paper type) is facilitated by blowing pulses (or jets) of compressed air through the filter media in the reverse flow direction. The invention relates to ... | 11/13/1984 |
| 4373553 | Broad band flueric amplifier A broad band flueric amplifier is disclosed which comprises means to incre the deflection of the fluid jet within the amplifier at higher frequencies of oscillation of the jet. The means for increasing jet deflection comprises vanes or protrusions positi... | 02/15/1983 |
| 4291395 | Fluid oscillator A telemetry system is disclosed which utilizes a fluid feedback oscillator n conjunction with a flow restricting device in order to generate pulses in a fluid. Means are provided to turn the oscillator on or off or to vary the frequency of oscillation, the... | 09/22/1981 |
| 4276895 | Apparatus and method for temperature compensation of fluidic circuits A temperature compensation device for a fluidic circuit is disclosed. The vice comprises a high gain fluid amplifier having input and feedback resistors. The resistance to fluid flow through the input resistor is dependent upon fluid density, while the re... | 07/07/1981 |
| 4231519 | Fluidic oscillator with resonant inertance and dynamic compliance circuit The fluidic oscillator consists of a resonant fluid circuit having a fluid inertance and a dynamic fluid compliance. The inertance is a conduit interconnecting two locations of a chamber on each side of a working fluid jet issuing into one end of the cham... | 11/04/1980 |
| 4227550 | Liquid oscillator having control passages continuously communicating with ambient air In a clothes washer, liquid pulses are delivered to a bucket or tank of water to create continuously recirculating flow therein in a vertical plane. The flow carries the clothes in a tumbling action and the pulses agitate the clothes passing the pulse sou... | 10/14/1980 |
