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| Number | Title | Issue Date |
| 8136788 | Coupling element for connecting actuator to valve A coupling element has a first interface, which is adapted to mechanically connect the coupling element to an actuator, a second interface, which is adapted to mechanically connect the coupling element to a valve, and a deformable portion, which is shaped in such a ... | 03/20/2012 |
| 7922149 | Damper actuator assembly A damper actuator assembly comprises an actuator and an electronic fusible link (EFL) connected by at least one wire. The actuator comprises an actuator housing with actuator leads extending from the actuator housing. The actuator leads include a first quick connect... | 04/12/2011 |
| 7637475 | Solenoid A solenoid is provided which, in the preferred embodiment, has a housing having an axial opening in it. The housing has a divider mounted in the axial opening to separate the axial opening into a first segment and a second segment. Respective ones of a first pole pi... | 12/29/2009 |
| 7540469 | Microelectromechanical flow control apparatus A microelectromechanical (MEM) flow control apparatus is disclosed which includes a fluid channel formed on a substrate from a first layer of a nonconducting material (e.g. silicon nitride). A first electrode is provided on the first layer of the nonconducting mater... | 06/02/2009 |
| 7467779 | Microfluidic modulating valve A valve is provided that can selectively change the size of a flow channel in a valve in order to modulate the fluid flow through the valve. In one illustrative embodiment, the valve includes a housing that defines a cavity, with an inlet and an outlet extending int... | 12/23/2008 |
| 7441519 | Engine valve actuation system An engine valve actuation system may include an intake valve moveable between a first position that blocks a flow of fluid and a second position that allows a flow of fluid. The system may also include a cam assembly configured to move the intake valve between the f... | 10/28/2008 |
| 7437881 | Control valve for variable displacement compressor To provide a control valve for a variable displacement compressor, which is capable of stably operating in a pressure control area, and causing the compressor to quickly shift to operation with the minimum displacement. The control valve for a variable displacement ... | 10/21/2008 |
| 7430996 | Electromagnetically driven valve An electromagnetically driven valve includes a valve element, a main body, a disc, and a lower electromagnetic. The valve element includes a valve stem, and is reciprocated in the direction in which the valve stem extends. The main body is provided at a position dis... | 10/07/2008 |
| 7428887 | Electromagnetically driven valve An electromagnetically driven valve includes a valve element, a main body, a disc, and a lower electromagnet. The valve element includes a valve stem, and is reciprocated in the direction in which the valve stem extends. The main body is provided at a position dista... | 09/30/2008 |
| 7426911 | Enhanced permanent magnet electromagnetic actuator for an electronic valve actuation system of an engine A valve actuator for actuating a valve in an internal combustion engine is disclosed, wherein the valve actuator includes at least one electromagnet having a coil wound about a core, at least one permanent magnet disposed at least partially within the core, and an a... | 09/23/2008 |
| 7422191 | Bistable miniature valve A bistable minivalve includes a movable component, an actuator that is electrostatically, magnetically, or mechanically coupled to the movable component for controllably switching the movable component between open and closed states, and a casing providing structura... | 09/09/2008 |
| 7415950 | Engine valve control system and method A method of operating an engine having at least one cylinder, said cylinder including at least one electric valve actuator, said actuator including at least a coil and an armature moveable thereto, the method comprising during a non-firing state of the cylinder: hol... | 08/26/2008 |
| 7387094 | Electromagnetically driven valve An electromagnetically driven valve that is driven by the combined action of electromagnetic force and elastic force includes first and second valve elements that have valve shafts and move in reciprocating motions in the directions in which the valve shafts extend.... | 06/17/2008 |
| 7370614 | Electromagnetically driven valve An electromagnetically driven valve includes a driven valve having a stem and carrying out reciprocating motion along a direction in which the stem extends, a disc support base having an abutment surface, a disc extending from one end coupled to the stem toward the ... | 05/13/2008 |
| 7367296 | Bi-directional power electronics circuit for electromechanical valve actuator of an internal combustion engine A bi-directional dual coil half bridge converter adapted to be coupled to a dual coil actuator of a cylinder valve in an internal combustion engine is described. In one example, the converter has a first and second capacitor and a voltage source, where the converter... | 05/06/2008 |
| 7363942 | Continuous automatic control and distributor valve, with a magnetic seal A valve which is composed of: —A seal consisting of two identical ferromagnetic discs (1), which enclose another smaller-diameter disc (2) and a permanent magnet, the rims (3) of the outer discs (1) being bevelled and the three discs co... | 04/29/2008 |
| 7360750 | Piezoelectric air valve and multiple-type piezoelectric air valve The air valve includes a valve body for controlling operations to open and close the communication between an air pressure chamber and an air outlet, a piezoelectric element for generating driving force in the form of displacements, and a displacement enlarging mech... | 04/22/2008 |
| 7357369 | Damper device A damper device includes a drive part, a baffle driven by the drive part, a frame including an aperture part which is opened or closed by the baffle, and a cover member for covering a joint part provided for the drive part to prevent moisture existing outside of the... | 04/15/2008 |
| 7353787 | Electromagnetically driven valve An electromagnetically driven valve that operates by a combination of electromagnetic force and elastic force includes a valve element that has a valve shaft and that reciprocates in directions of extension of the valve shaft, and first and second oscillating member... | 04/08/2008 |
| 7347952 | Method of fabricating an ink jet printhead An ink jet printhead chip includes a wafer substrate. A CMOS drive circuitry layer is positioned on the wafer substrate. A plurality of nozzle arrangements is positioned on the wafer substrate and the CMOS drive circuitry layer. Each nozzle arrangement includes nozz... | 03/25/2008 |
| 7338029 | Compact solenoid A compact solenoid including a coil and a frame located outside the coil for constituting a magnetic circuit. The frame includes four bars extending in parallel to the axial direction of the coil and located proximate to the outer circumferential face of the coil. E... | 03/04/2008 |
| 7338475 | Electret enhanced automatic IV drip chamber shutoff An automatic stop valve formed in a container of a medical fluid administration system includes an electrical field that attracts the float and valve seat together to shut off flow from the exit port of the container when the fluid within the container is reduced to... | 03/04/2008 |
| 7328882 | Microfluidic modulating valve A valve is provided that can selectively change the size of a flow channel in a valve in order to modulate the fluid flow through the valve. In one illustrative embodiment, the valve includes a housing that defines a cavity, with an inlet and an outlet extending int... | 02/12/2008 |
| 7323140 | Moving microdroplets in a microfluidic device The present invention relates to a system and method for moving samples, such as fluid, within a microfluidic system using a plurality of gas actuators for applying pressure at different locations within the microfluidic. The system includes a substrate which forms ... | 01/29/2008 |
| 7322376 | Piezoelectric valve A piezoelectric valve has a flexural transducer accommodated in a valve housing and having a free ending cantilever operational section able to be deflected by electrical control. The operational section extends over two controlled valve openings lying on the same s... | 01/29/2008 |
| 7320338 | Microvalve package assembly A microvalve assembly that can help protect a microvalve or an assembly of microvalves from the environment. Such a microvalve assembly may be mechanically assembled, without the use of adhesives and/or other materials that might out-gas and/or otherwise reduce the ... | 01/22/2008 |
| 7320457 | Electroactive polymer devices for controlling fluid flow The invention describes devices for controlling fluid flow, such as valves. The devices may include one or more electroactive polymer transducers with an electroactive polymer that deflects in response to an application of an electric field. The electroactive polyme... | 01/22/2008 |
| 7316382 | Controlling electromotive actuators The invention relates to an electromotive actuator and a corresponding circuit in order to replace a pneumatical actuator system in a simple manner by an electric system. ... | 01/08/2008 |
| 7315440 | Circuit and method for driving a coil-armature device Methods and circuits for driving a coil-armature device are disclosed. The circuits are configured to drive the coil-armature device to a first energy level for a period of time sufficient to retract the armature to the center of the coil, and then, to drive the coi... | 01/01/2008 |
| 7311503 | Micromachined fluidic device and method for making same The fluid-flow device (100) of the invention comprises a stack (30) covered by a closure wafer (20), said stack (30) comprising a support wafer (36), a layer of insulating material (34), and a silicon layer (32). The ... | 12/25/2007 |
| 7309056 | Dual pedestal shut-off valve Integrated micro-valve is formed to control fluid flow and pressure. The valve converts supplied energy to mechanical energy through a means for energy conversion resident above a flexible wall or membrane. In one embodiment a sealed cavity contains a fluid that exp... | 12/18/2007 |
| 7305943 | Electromagnet assembly for electromechanical valve actuators An electromechanical valve actuator including an electromagnet interconnected with a housing end portion and an electric coil disposed adjacent said electromagnet. The electromagnet includes a plurality of interlocked laminae to form a laminate that is similarly int... | 12/11/2007 |
| 7305942 | Electromechanical valve actuator An electromechanical valve actuator with an armature stem guidance system that ensures that the armature stem stays aligned with the valve stem during operation. The stem guidance system may also allow for adjustment of the lash gap during assembly. ... | 12/11/2007 |
| 7302970 | Liquid delivery device A micro liquid delivery device includes a flow channel for flowing a liquid, at least two pressure-generators for generating pressures provided in the flow channel, and a variable member placed between the pressure-generators and capable of transforming between a fi... | 12/04/2007 |
| 7299818 | Integrated microvalve and method for manufacturing a microvalve An integrated microvalve has a substrate, a first function layer applied to the substrate, and a second function layer applied to the first function layer, the first function layer being designed as a diaphragm in at least one valve area, the second function layer b... | 11/27/2007 |
| 7284370 | Positioning control apparatus A positioning control apparatus includes a position detector 102 which detects the position of a positioning object 101, a target position generator 103 which generates a target position signal based on an output from the position detector, and ... | 10/23/2007 |
| 7270786 | Methods and systems for processing microfluidic samples of particle containing fluids The present invention relates to a microfluidic system for processing a cell-containing liquid. The system includes a microfabricated substrate having an enrichment channel to prepare an enriched cell sample from the cell-containing liquid. A flow through member is ... | 09/18/2007 |
| 7270093 | Internal combustion engine with electronic valve actuators and control system therefor A valve assembly for an internal combustion engine includes a stationary permanent magnet assembly having at least one permanent magnet for generating a permanent magnetic field with a radial component and a movable coil assembly having at least one coil of electric... | 09/18/2007 |
| 7263838 | Pulse tube cooler with internal MEMS flow controller A regenerative refrigeration system includes one or more control devices that utilize micro electro mechanical systems (MEMS) technology. Such MEMS devices may be small in size, on a scale such that it can be introduced into a refrigeration system, such as a cryocoo... | 09/04/2007 |
| 7264222 | Modular valve assembly A valve assembly provides a holder cantileveredly attached to a boss on an end cap to axially dispose an actuator and a poppet on an axis with a valve seat formed in the end cap. The actuator is preferably a shape memory alloy actuator. The end cap may be placed in ... | 09/04/2007 |
