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| Number | Title | Issue Date |
| 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 |
| 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 |
| 5109832 | Method of and apparatus for producing alternating pressure in a therapeutic device A method of and apparatus are disclosed for producing alternating pressure in a theapeutic device used to apply compressive forces to a portion of a human body to enhance venous blood flow and prevent venous thrombosis and pulmonary embolism in surgical p... | 05/05/1992 |
| 5025835 | Laminar flow acoustic sensor-amplifier A fluidic amplification device having an input, a fluid supply, a fluid sly nozzle for creating a laminar jet of fluid, an output chamber for receiving the laminar jet, control nozzles to control fluid flow through the amplification device from the fluid... | 06/25/1991 |
| 4934409 | T junction interconnected multistage fluidic gainblock A fluidic gainblock for amplifying AC pressure signals having an additional lement known as a "T" junction added to the interconnection region between the stages of an LPA gainblock. Where normally there would be direct coupling between LPA's in a staged g... | 06/19/1990 |
| 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 |
| 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 |
| 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 |
| 4722365 | Fluidic device A focused optical input signal is applied to an optically absorbent wall portion of one of two convergent supply nozzles in a fluidic device to reduce the thickness of the flow boundary layer. The boundary layer reduction deflects the combined nozzle disc... | 02/02/1988 |
| 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 |
| 4716936 | Fluidic system with noise filter for increasing operating range A fluidic system is provided in which the laminar flow operating range has een increased. The fluidic system uses stacks of laminate plates in which filter means is placed between vent and exhaust laminates for breaking up eddies and flow noise created fro... | 01/05/1988 |
| 4610274 | Fluidic device A focused optical input signal is applied to an optically absorbent wall portion of a supply nozzle 40 in a fluidic device to cause boundary layer separation of flow therein. The boundary layer separation turns the flow to achieve a desired output from th... | 09/09/1986 |
| 4606375 | Fluidic device An unfocused optical input signal is applied to an optically absorbent wall portion of an interaction region 30 in a fluidic device to effect flow impedance modulation thereat. The flow impedance modulation adjusts the velocity profile of the flow to achi... | 08/19/1986 |
| 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 |
| 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 |
| 4512371 | Photofluidic interface A photofluidic interface that transduces optical control signals into fluid ontrol pressures is provided in which an AC modulated light source is utilized to transmit control signals to a photo acoustic cell that absorbs the light energy and converts it to... | 04/23/1985 |
| 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 |
| 4246935 | Temperature-compensated laminar proportional amplifier A temperature-compensated laminar proportional amplifier having an interaon chamber laterally extended into a plurality of vented recesses and a power nozzle for issuing fluid into the interaction chamber. A linear resistor is fluidically coupled between... | 01/27/1981 |
| 4190083 | Fluidic logical pyrotechnic initiator A fluidic pyrotechnic initiator capable of initiating a fluid resonator cridge initiator upon receipt of a low pressure input signal. A monostable supersonic wall-attachment fluidic amplifier is used with a control channel to detach the supersonic jet, c... | 02/26/1980 |
| 4067329 | Tube disconnection warning device A warning device of the disconnection of a tube from another tube, for example, of a respirator canula from a patient's medical equipment comprises: a source of gas under pressure; a pneumatic switch; a filter; an adjustable pressure reducing valve; and a... | 01/10/1978 |
| 4000757 | High gain fluid amplifier A bistable fluidic amplifier having high gain is disclosed. Power fluid is upplied through an inlet port and lobe-shaped feedback cavities downstream provide an oscillating differential pressure or flow between a pair of outlets. A pair of opposed control ... | 01/04/1977 |
| 3971257 | Laminar jet linear accelerometer A laminar jet linear accelerometer includes a plenum chamber to which prerized fluid is supplied and a nozzle operatively associated with the chamber for issuing the fluid in the form of a jet. The jet is conducted into another chamber, which is vented t... | 07/27/1976 |
| 3958602 | Flueric laminar digital amplifier Described herein is a flueric laminar bi-stable amplifier. The device comses essentially a flueric amplifier having a supply nozzle, a pair of outlet nozzles, a pair of control nozzles, vent means located along the axial path of fluid flow and means for ... | 05/25/1976 |
