Class 137/829 - By movable element

Subclass of Class 137 - Fluid handling
Definition: Device wherein said means is a member that can move relative
No. of patents: 38
Last issue date: 01/31/2012

Number	Title	Issue Date
8104514	Microfabricated fluidic circuit elements and applications A microfabricated fluidic unidirectional valve includes a microfabricated elastomer material having a flow through channel. The microfabricated fluidic unidirectional valve also includes an elastomer flap attached to the elastomer material in the flow through channe...	01/31/2012
7832429	Microfluidic pump and valve structures and fabrication methods Plastic microfluidic structures having a substantially rigid diaphragm that actuates between a relaxed state wherein the diaphragm sits against the surface of a substrate and an actuated state wherein the diaphragm is moved away from the substrate. As will be seen f...	11/16/2010
7021120	High resolution gas gauge proximity sensor In a gas gauge, effects due to changes in the local environment are reduced by causing a measurement nozzle and a reference nozzle to react as if they were co-located, or located at approximately the same position. This is achieved by venting the reference nozzle in...	04/04/2006
7000639	Air-distribution device based on the Coanda effect with means for imparting a circulatory motion on the flow of air not properly oriented Described herein is a Coanda-effect air distributor for distributing a flow between a number of ducts set downstream. Provided in the area that separates the initial ends of two ducts set downstream is the inlet of a recirculation duct that creates an air circulatio...	02/21/2006
7000640	Air-distribution device based on the coanda effect An air-distribution device based upon the Coanda-effect comprises two mobile elements that move in synchronism and in phase opposition for distributing an air flow into two ducts. ...	02/21/2006
6941967	Air-distribution system An air-distribution system comprises a fluid device that enables deviation of a flow of air that traverses a main duct (6S; 6D) into a first secondary duct (7S, 7C) and a second secondary duct (7C, 7D), exploiting the Coanda...	09/13/2005
6901949	One-directional microball valve for a microfluidic device A microfluidic device that includes a microball valve is provided. The microball valve is capable of preventing or interrupting fluid flow through the microfluidic device. The microfluidic device can include a substrate layer, and a microfluidic pathway that include...	06/07/2005
6817373	One-directional microball valve for a microfluidic device A microfluidic device that includes a micro ball valve is provided. The microball valve is capable of preventing or interrupting fluid flow through the microfluidic device. The microfluidic device can include a substrate layer, and a microfluidic pathway that includ...	11/16/2004
6792976	Fluid distribution device having improved deviating means A fluid distribution system comprised of an inlet duct (1) and two outlet ducts (6 and 7) including deviating means for directing the inlet flow into one or the other outlet ducts (6 and 7) composed of a mobile wall (2) suit...	09/21/2004
6192911	Venturi injector with self-adjusting port A self-adjusting venturi/mixer is disclosed. An inlet port body and outlet port body having a converging region and diverging region, respectively, are longitudinally slidably disposed with respect to each other, forming an annular injection gap that wide...	02/27/2001
5785815	Process for damping pressure pulsations and apparatus for performing the process Process for damping pressure pulsations and apparatus for performing the process. The process of this invention serves for the damping of pressure pulsations in a fluid, particularly a fiber suspension, flowing in a closed system wherein the pressure puls...	07/28/1998
5316032	Method and apparatus for laminar flow control A method and apparatus for establishing discrete zones of pressure at the surface of a perforated panel of the type typically used for laminar fluid flow control includes a first array of channel members fluidly communicating with perforations in the pane...	05/31/1994
5241991	Electro-rheological control valve An E-R hydraulic control valve that has two or more surfaces that can be moved relatively to one another to adjust a flow orifice size while maintaining a control voltage gradient across the E-R fluid and to seat one surface against the other to shut off ...	09/07/1993
5074629	Integrated variable focal length lens and its applications A variable focal length lens integrated onto a silicon wafer. A light transmitting material such as gas or liquid is entrapped in a cavity in the wafer. The cavity has a flexible, light transmitting wall. The wall provides one surface of the lens. When th...	12/24/1991
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
4718870	Marine propulsion system A marine propulsion water jet system which operates at high efficiency and automatically adjusts itself to maintain a relatively constant primary injection water velocity over a wide speed range. The propulsion system includes a fluid flow amplifier by wh...	01/12/1988
4534383	Fluidic set point pressure sensor A mechanically offset fluid amplifier for converting the absolute pressure f a pressurized fluid to a differential pressure indicating the pressure of the pressurized fluid relative to a predetermined set point pressure. The device includes two outlets sep...	08/13/1985
4467984	Angular rate sensing apparatus and methods A three-axis navigational guidance system utilizes three specially designed internal jet-type fluidic angular rate sensors which simultaneously sense the rotational rate of a guided body relative to three mutually perpendicular control axes. Fluidic outpu...	08/28/1984
4441525	Fluidic stabilization control A fluidic system for stabilizing movement of a body subject to oscillation at its natural frequency, such as a tank-mounted gun, with appropriate circuitry and controls for notch filtering control output signals at the natural frequency....	04/10/1984
4434813	Laminar proportional amplifier and laminar jet angular rate sensor with rotating splitter for null adjustment The apparatus disclosed herein is an externally adjustable flow splitter a fluid amplifier. The flow splitter is a substantial triangular plate fixedly attached to a rod rotatably mounted in the amplifier immediately adjacent to the fluid outputs to red...	03/06/1984
4434812	Fluidic gain changer A fluidic gain changer uses a fluid jet to mechanically deflect between two ets of fluidic receivers. A planar fluidic amplifier has its power jet, control jets and interaction regions bounded together to form a flexible tab than can be deflected in the th...	03/06/1984
4392621	Directional control of engine exhaust thrust vector in a STOL-type aircraft A method and apparatus for controlling the direction of the thrust vector of the engine exhaust stream in an upper surface blowing type aircraft includes ducts in the aircraft wings having rotary control valves for controlling the flow of air through the ...	07/12/1983
4388950	Fluid flow control element having movable valve and method A fluid flow control element is constituted by a fluidic amplifier having an interaction region shaped to provide side walls leading to a pair of fluid flow outlets. The fluid flow inlet for the fluidic amplifier has positioned adjacent thereto at least o...	06/21/1983
4326452	Fluid diverting assembly A fluid diverting assembly particularly suited for use as a component for a fluid exit structure of an air-conditioner, which has a passageway through which a fluid medium flows. The passageway includes a nozzle for issuing a fluid stream as the fluid med...	04/27/1982
4326559	Fluidic force transducer A fluidic accelerometer and electromagnetic transducer formed from a plurty of vertical laminations having a nozzle, a pair of outlets for receiving nozzle fluid and a flexible member as an extension of one of the laminations which forms a vertical wall ...	04/27/1982
4278110	Demand responsive flow controller A demand responsive flow controller for use in a respiration system for the administration of oxygen from a pressurized source through a cannula to a patient is disclosed. A flow path between the pressurized source and the cannula is opened and closed by ...	07/14/1981
4267856	Fluid oscillator A fluid oscillator is shown for producing pulsations in a flow of fluid. The oscillator has a housing which includes a fluid inlet channel for connection to a supply of fluid under pressure, a fluid outlet channel, and a valve chamber located between and ...	05/19/1981
4256015	Fluidic stabilization control A fluidic system for stabilizing movement of a body subject to oscillation at its natural frequency, such as a tank-mounted gun, with appropriate circuitry and controls for notch filtering control output signals at the natural frequency....	03/17/1981
4241760	Fluidic valve A fluidic valve which includes a supply nozzle for discharging a fluid po stream, and a pair of outlet channels for receiving the power stream. A rigid member is disposed inside the power nozzle so that it splits the power stream evenly and fluid exits v...	12/30/1980
4073316	Flexible flow diverter A flow device for interaction with a fluid stream to control its direction comprises a conduit system which includes a cavity in communication with an inlet for the stream and at least one outlet for the stream. Controllable flexible means co-operative wi...	02/14/1978
4061156	Transition module for a pneumatic sequencer and an associated sequencer The transition module is intended to be assembled with at least three action modules constituting a sequencer and comprises an elementary logical gate having two inputs and one output, two inputs for receiving the output signals of two predetermined actio...	12/06/1977
4027407	Jet flow alternator A jet flow alternator for reversing the flow of a confined fluid stream which includes selectively controlled tubes to cause said stream to flow in either one of two directions under pressure....	06/07/1977
4020693	Acoustic transducer for nuclear reactor monitoring A transducer to monitor a parameter and produce an acoustic signal from which the monitored parameter can be recovered. The transducer comprises a modified Galton whistle which emits a narrow band acoustic signal having a frequency dependent upon the para...	05/03/1977
4003295	Fluidic capacitor for temperature independent RC time constants in liquids A fluid capacitor for liquid use is described comprising a cylinder-pistopring arrangement where the spring constant is made to vary as the viscosity of a fluid, so that a temperature independent RC time constant can be achieved in the systems forced to ...	01/18/1977
3974755	Air outlet An air outlet through which air is supplied to the room of a building or the like which includes a plurality of blower elements arranged in at least one row, with each element being independently angularly adjustable to supply air within a range of defini...	08/17/1976
3942558	Torsional reed reference fluidic oscillator A torsional reed reference fluidic oscillator operating within 0.1% of the desired frequency over a temperature range of -65° to +165°F and an operating pressure of from 1 to 4 psi. The oscillator includes a torsional reed fluidic amplifier and fluidic ...	03/09/1976
3934603	Fluidic upstream control of the directional flow of a power jet exiting a fluidic power nozzle A fluidic device having a plenum chamber, an input port to the chamber for receiving a supply of gas, and a power nozzle contiguous with the plenum chamber for generating a power jet. Means is located upstream of the power nozzle for controlling the direc...	01/27/1976
3931833	Fluidic device A fluidic device comprising a housing having operate and release compartments separated by a passage is arranged with a pressure source for forcing a deformable moving element from either compartment into a deformation chamber connecting to the release co...	01/13/1976

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Class 137/829 - By movable element