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| Number | Title | Issue Date |
| 8136550 | Elastic valve and microfluidic device including the same An elastic valve and a microfluidic device including the same are provided. The elastic valve includes a channel dented by external pressure so as to be elastically restituted; and a plurality of channel closing protrusions, which comprise elastomer as a material, w... | 03/20/2012 |
| 7204474 | High-pressure plug valve A plug valve has a valve body, a cage fitted within the valve body and a rotatable plug housed within a cylindrical cavity in the cage, for controlling fluid flow through the valve. The cage has first and second opposed flat side surfaces, each side surface has a po... | 04/17/2007 |
| 7168680 | Embedded control valve using electroactive material A microfluidic control valve (100) comprising a dielectric structure (105) defining at least one cavity (260) therein. An electroactive material (305), such as an electroactive polymer, is disposed in a portion of the cavity. The electroa... | 01/30/2007 |
| 6959468 | Vent adjusting apparatus A vent adjusting apparatus for opening and closing air vents of a recreational vehicle includes a handle provided with a first adapter attached to one end portion thereof. The first adapter includes a groove that has first and second bores oppositely spaced for enga... | 11/01/2005 |
| 5123435 | Laminar damper and method of airflow control A method and apparatus of controlling the flow of a fluid is disclosed which includes a frame having first and second opposite sides, a plurality of flexible hollow tubular shaped elements positioned so as to extend between the first and second sides of t... | 06/23/1992 |
| 5102228 | Apparatus and method for producing foamed materials An apparatus and method for controlling the production of foamed material in which the material and foam are delivered to a mixer (12) in predetermined relative proportions. The apparatus comprises a mixer (23) for mixing a foam solution and air together,... | 04/07/1992 |
| 4987918 | Trap for steam condensates Formed by a cylindrical body (10) provided on the upper third of the lateral surface thereof with respective cylindrical conduits (10) and (11) extending thereform, the conduit (12) being provided with a further two conduits (16b) and (16), a direct purge... | 01/29/1991 |
| 4842017 | Fluid flow control apparatus A valve is one of a plurality of similar valves set out in the form of a matrix to constitute a portion of the fuel control system of a gas turbine engine. The valve comprises a piezo-electric crystal and is deformable by the application of a potential di... | 06/27/1989 |
| 4694856 | Fluid control device particularly useful in liquid transfusion apparatus A fluid control device for a liquid transfusion line comprises an inlet connector and an outlet connector, and a flexible conduit defining two, three or more passageways extending in parallel between them to provide a plurality of parallel paths for the f... | 09/22/1987 |
| 4620564 | Device for regulating the flow rate in a tube A device for regulating the flow rate in the tube, e.g. in infusion- and transfusion assemblies. The flow rate can be regulated by twisting a portion of the tube by means of a twisting device. The tube comprises at least along the portion of its length wh... | 11/04/1986 |
| 4535811 | Air flow control apparatus An air flow control apparatus is disclosed which is characterized by essentially zero leakage in its closed position, and by minimal air resistance in its open position. The apparatus includes a housing having an interior framework which defines a plurali... | 08/20/1985 |
| 4510972 | Bow action valve A bow action valve for controlling the flow of material includes a valve body having at least one orifice and a closure plate. The closure plate is secured in front of the valve body at two opposite ends, with one end secured at a substantially fixed loca... | 04/16/1985 |
| 4457336 | Air flow control apparatus An air flow control apparatus is disclosed which is characterized by an essentially zero leakage rate in its closed position, and by minimal air resistance in its open position. The apparatus includes an orifice panel which defines a plurality of troughs ... | 07/03/1984 |
| 4414999 | Continuous flushing device A flow regulating assembly and components are provided for a catheter system. The assembly provides a regulated flow of medical fluid with an intermittent operator-controlled large-volume flushing flow. The assembly includes a flow-occluding piston recipr... | 11/15/1983 |
| 4293031 | Engine cooling system flushing apparatus and method An internal combustion engine cooling system is flushed by: (a) providing a controlled pressurized flow of flushing liquid and entrained gas bubbles, (b) and passing said flow alternately through (i) the radiator in a reverse direction, (ii) the engine coolant pass... | 10/06/1981 |
| 4182356 | Sill cock assembly A sill cock assembly is disclosed comprising a fluid outlet for location on the exterior of a wall, a fluid flow inlet adapted for location adjacent the interior of the wall, a conduit connecting the fluid inlet and the fluid outlet, a selectively operabl... | 01/08/1980 |
| 4124066 | Radiator shutter for arctic vehicles A shutter mechanism for an engine radiator comprising a series of rigid pus tubes having elastomeric sleeves secured thereto. Introduction of pressurized fluid (e.g. compress air or engine coolant) into the porous tubes pressurizes the spaces between the... | 11/07/1978 |
