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| Number | Title | Issue Date |
| 7992838 | Ball poppet valve having valve body widening in funnel shape The invention relates to a ball poppet valve, in particular an electromagnetically actuated ball poppet valve, having a valve body, an accommodating aperture disposed in the valve body for a ball poppet, and a valve bore also disposed in the valve body, a ball poppe... | 08/09/2011 |
| 7690625 | Valve comprising a magnetic control device A valve including a shutter placed in a chamber which is arranged in the valve body and whose end is provided with a seat against which a plug-forming part of the shutter is pressed in the closed position of the valve and is remote in the open position thereof. The ... | 04/06/2010 |
| 7481416 | Valve The valve comprises a closing body in a valve chamber. The valve chamber is delimited on one end by an opposing wall and on the opposite end by a piston. The piston is pressed in the direction of the opposing wall by a press-on means. In this manner, the closing bod... | 01/27/2009 |
| 7441546 | Valve apparatus A pushrod is slidably received in a slidably holding guide, which is formed separately from a valve body of a valve apparatus. A clearance is provided between an inner peripheral surface of a small diameter tube portion of the valve body and an outer peripheral surf... | 10/28/2008 |
| 7370669 | Electromagnetic valve Disclosed is an electromagnetic valve in which a force due to a working fluid from an inflow hole acting perpendicularly with respect to the axis of a shut-off valve is reduced to thereby reduce the sliding resistance of the shut-off valve. An electromagnetic valve ... | 05/13/2008 |
| 7367636 | Solenoid armature with integrated spherical soft seal An improved valve for use in a heavy vehicle pneumatic braking and parking system is disclosed. The valve includes a solenoid coil assembly, a valve seat, an armature, and a spring. The solenoid coil includes a pole piece and produces a magnetic field when energized... | 05/06/2008 |
| 7335972 | Heterogeneously integrated microsystem-on-a-chip A microsystem-on-a-chip comprises a bottom wafer of normal thickness and a series of thinned wafers can be stacked on the bottom wafer, glued and electrically interconnected. The interconnection layer comprises a compliant dielectric material, an interconnect struct... | 02/26/2008 |
| 7331565 | On/off solenoid A solenoid control valve is described wherein the valve employs a precision molded plastic valve seat member, a corresponding control valve body which includes flying buttresses for supporting and distributing loads on the control valve body, and armature vent featu... | 02/19/2008 |
| 7328688 | Fluid pumping apparatus, system, and method A fluid pumping apparatus, system, and method are disclosed in which an apparatus according to one embodiment of the invention comprises a housing, an inlet through which the fluid enters the housing, an outlet through which the fluid leaves the housing, a valve com... | 02/12/2008 |
| 7318478 | Downhole ball circulation tool A circulation tool 10 for use downhole in a well includes a housing 12 having one or more bypass ports 16 for circulation between a bore in the housing and an annulus surrounding the housing. A sleeve 68 is axially movable within the hous... | 01/15/2008 |
| 7289012 | Electromagnetic coil assembly An electromagnetic coil assembly is provided. The electromagnetic coil assembly includes a bobbin, a coil of magnet wire and a cover piece. The bobbin includes a hub, a first flange and a second flange. The hub has a longitudinal axis. The first and second flanges a... | 10/30/2007 |
| 7252282 | Armature with vent passages for vehicle actuator In a vehicle solenoid valve, the spool that holds the actuation coil is formed with a hexagonal or octagonal inner chamber in which a cylindrical armature can slide. Owing to the different cross-sectional shapes between the spool and armature, a longitudinal fluid v... | 08/07/2007 |
| 7240894 | Pulse width modulated solenoid A pulse width modulated solenoid control valve is described, wherein the valve includes a polymer fluid control body. The body includes a segmented fluid flow path for providing strength to the fluid control body assembly. Stand off ribs are provided to improve asse... | 07/10/2007 |
| 7220594 | Method and apparatus for sorting particles with a MEMS device A micromechanical particle sorting chip uses laser light directed through at least one of a reflective and refractive surface to come to a focus in an optically transparent layer. The laser light impinges on a particle of interest, causing it to fluoresce. Upon dete... | 05/22/2007 |
| 7204581 | Magnetic actuator using ferrofluid slug A magnetostatic actuator uses a ferrofluid slug confined in a cylindrical tube which is wrapped in a conducting coil. By applying a current to the coil, a magnetic field is generated inside the coil. The ferrofluid slug may be attracted to the interior of the coil b... | 04/17/2007 |
| 7195027 | Solenoid valve The present invention relates to a solenoid valve. The end of valve, which points away from the magnet core towards the magnet armature, bears against an area of a valve tappet remote from the valve seat. The valve tappet is positioned so that it can be displaced in... | 03/27/2007 |
| 7195226 | Solenoid valve with spherical armature A valve includes a valve body, a flux tube, and a winding. The body defines first and second passageways, and a circular opening is defined in the second passageway providing fluid communication between the passageways. The flux tube has a closed end, an open end, a... | 03/27/2007 |
| 7189580 | Method of pumping fluid through a microfluidic device A method is provided for pumping fluid through a channel of a microfluidic device. The channel has an input port of a predetermined radius and an output port of a predetermined radius. The channel is filled with fluid and a pressure gradient is generated between the... | 03/13/2007 |
| 7189581 | Method of obtaining a sample concentration of a solution in a microfluidic device A method is provided of obtaining a sample concentration of a solution in a microfluidic device. The microfluidic device includes a channel having a reservoir and a collection port. The channel is filled with a solution having particles therein. A reservoir drop is ... | 03/13/2007 |
| 7174892 | Regulator for underwater breathing devices Regulator for underwater breathing devices including a relatively hard material box-like body having a pipe for the connection with a mouthpiece, at least one air inlet duct and at least one opening on which-it is positioned one air exhaust valve. The regulator box-... | 02/13/2007 |
| 7172170 | Pressure control valve and method for making a pressure control valve A pressure control valve for an automatic transmission of a motor vehicle includes a valve unit (10) extruded from plastic, which is disposed coaxially to an actuator unit and serves for control of a fluid flow between a supply port (18) and a consumer... | 02/06/2007 |
| 7169251 | Method of forming nanofluidic channels A method of forming nanofluidic enclosed channels includes providing a first substrate having a layer of a first material disposed thereon. A plurality of nanoscale slots is formed along a second substrate using nanolithography, etching, or other disclosed technique... | 01/30/2007 |
| 7165574 | Solenoid valve with cylindrical valve guide for the spherical valve element at the pressure inlet A valve device including a valve chamber having an inlet port at one end and a valve seat at the other end; a valve housing containing the valve chamber; the valve chamber accommodating a spherical valve element which performs opening and closing operation to the va... | 01/23/2007 |
| 7163189 | Tapping valve of plastics material for transport and storage containers for liquids A tapping valve of plastics material for transport and storage containers for liquids, which is constructed as a flap valve or ball valve, includes a valve housing with an inlet connection connectable to an outlet connection of the liquid container and an outlet con... | 01/16/2007 |
| 7131426 | Fluid flow rate control valve, anchor for mover and fuel injection system To effectively prevent uneven wear of a moving mover 70 and to stabilize the control characteristics by a valve. Rotation force is exerted to the mover 70 by the fluid flowing from the first chamber to the second chamber, or vice versa, which are forme... | 11/07/2006 |
| 7097149 | Bistable electromagnetic valve A bistable electromagnetic valve is proposed, which is to be used in refrigerant circuits. The valve can be produced at particularly low outlay and at the same time is reliably leaktight. This is achieved, according to the invention, in that the valve chamber (7 | 08/29/2006 |
| 7079240 | Photonic crystal laser sources for chemical detection A system, method and apparatus provide the ability to detect a chemical in an analyte. To detect the chemical, the invention utilizes a laser having an open cavity. A photonic crystal lattice structure having a defect defines a suitable geometry for such a cavity. T... | 07/18/2006 |
| 7073770 | Electromagnetic valve Provided is an electromagnetic valve improved in terms of the sealing property of a shut-off valve with respect to a valve seat. An electromagnetic valve according to the present invention includes: a housing (10) having an inflow hole (11) and a disch... | 07/11/2006 |
| 7048252 | Fluid control apparatus An elastic member made of rubber which urges a coil portion toward a cover is formed into a shape such that the elastic member can be deformed by bending. A rate of change in reaction force of the elastic member with respect to an amount of deformation in a bending ... | 05/23/2006 |
| 7046093 | Dynamic phase-locked loop circuits and methods of operation thereof A phase locked loop (PLL) circuit includes a controlled oscillator circuit that is operative to generate an output clock signal responsive to an oscillator control signal according to a plurality of selectable transfer functions, and an oscillator control signal gen... | 05/16/2006 |
| 6998948 | Hollow plunger with guide integrated to bobbin assembly An actuator suitable for use with a fluid flow control valve includes a frame, a bobbin, a coil and a plunger assembly. The frame is generally cylindrical and has a longitudinal axis. The bobbin, which is wound with the coil, includes a central cavity. The plunger a... | 02/14/2006 |
| 6974118 | Automatic flush actuation apparatus An automatic flush actuation apparatus, which is incorporated with a flushing system having a water inlet, a water outlet, and a water chamber communicating therebetween, that includes a valve member being moved by a flush lever for releasing the water pressure with... | 12/13/2005 |
| 6974117 | Proportional valve actuating apparatus A valve actuating apparatus for providing proportional control of a fluid flow that includes a housing having a valve body with an inlet port and an outlet port. In one embodiment, the valve actuating apparatus also has a valve assembly including an armature, a mova... | 12/13/2005 |
| 6957656 | Proportional solenoid valve and control method therefor In a proportional solenoid valve, a cylindrical valve seat member includes an input/output-side passage provided between an input port and a drain port and between an output port and the drain port, a seat portion provided in an end portion of the input/output-side ... | 10/25/2005 |
| 6955337 | Pneumatic module A pneumatic module includes an actuator assembly and a manifold. The actuator assembly includes a main body having a bore, an armature, overmolded primary and secondary plates, a coil and a frame. The manifold includes a valve seat, a control port and a supply port.... | 10/18/2005 |
| 6953183 | Proportional solenoid valve In a proportional solenoid valve, a solenoid main body includes a coil, a valve seat member having a seat portion, a valve element that is displaced in accordance with a current applied to the coil so as to be brought into and out of contact with the seat portion, a... | 10/11/2005 |
| 6927656 | Electromagnetic actuator and method for manufacturing electromagnetic actuator, and control valve for variable displacement compressor using electromagnetic actuator An electromagnetic actuator includes a cylinder, a stationary core and a movable core arranged in the cylinder, and a coil located about the cylinder. The movable core moves in the cylinder in accordance with an electromagnetic force, which is generated between the ... | 08/09/2005 |
| 6916004 | Electromagnetic valve An electromagnetic valve for opening and closing a fluid flow passage by operating a plunger under a magnetic force of a solenoid. The valve comprises a valve head provided at one of opposite ends of the plunger, and a fixed valve seat including an orifice providing... | 07/12/2005 |
| 6904934 | Proportional pressure adjustment valve A proportional pressure adjustment valve is described which comprises one valve part with inlet and outlet openings (4) and at least one closing mechanism (7) for control of a valve (12), the same as a magnet part having one magnet core, one mag... | 06/14/2005 |
| 6899314 | Bistable electromagnetic valve A bistable electromagnetic valve is proposed, which is to be used in refrigerant circuits. The valve can be produced at particularly low outlay and at the same time is reliably leaktight. This is achieved, according to the invention, in that the valve chamber (7 | 05/31/2005 |
