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7484720 |
Temperature compensating valve assembly
A temperature compensating valve assembly comprising a bimetallic spring, an O-ring, a body and a cap. The cap has at least one nib to provide compression on the bimetallic spring. The bimetallic...
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7484528 |
Valve
A valve is provided with a valve housing encompassing a pressure chamber and possessing at least two valve ports which open into the pressure chamber, whereby, in the pressure chamber at least one...
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7478792 |
Microvalve having magnetic wax plug and flux control method using magnetic wax
Provided is a microvalve having a magnetic wax plug which includes a micro fluidic structure having an inlet portion and an outlet portion, a magnetic wax plug provided at a predetermined section...
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7454916 |
System for controlling cryogenic fluid flow rate and Joule-Thomson effect cooler comprising same
A cryogenic fluid flow control system. This cryogenic fluid flow control system utilizes a first element forming a fluid inlet channel and an outlet passage that can be selectively blocked off by a...
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7438030 |
Actuator operated microvalves
An actuator operated microvalve and the method of making same is disclosed and claimed. The microvalve comprises a SiC housing which includes a first lower portion and a second upper portion. The...
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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...
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7422192 |
Valve for fluids having a diaphragm shutter controlled by shape memory means acting also as defrosting means
Described herein is a valve for fluids, liquids or dusts, which can be used to particular advantage for controlling openings for passage of cooling air in refrigerating apparatuses or the like. The...
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7407113 |
Products and process that act as a safety valve to prevent scalding
A thermostatic valve incorporated within a plumbing system for regulating the flow of fluid. The thermostatic valve includes two valve assemblies operatively cooperating to preclude the flow of...
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7395825 |
Method and device for activating an element made of a shape memory alloy
A simple and cost-effective method is provided, according to which a positive temperature component (PTC) element directly controls the element made of a shape memory alloy. A simple and cost...
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7367359 |
Proportional micromechanical valve
The present invention provides a proportional microvalve having a first, second and third layer, and having high aspect ratio geometries. The first layer defines a cavity with inlet and outlet...
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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...
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7350762 |
Flow control assemblies having integrally formed shape memory alloy actuators
In one embodiment of the present invention, a shape memory alloy (“SMA”)-actuated flow controller comprises a number of grille members, each having a long axis and being slideable relative to...
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7331563 |
Valve with compact actuating mechanism
The present invention relates to a valve having a base body with a passage opening, a movable valve member for closing and opening the passage opening and an actuating mechanism for moving the...
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7316227 |
Temperature-controlled PCV valve
A positive crankcase ventilation valve includes a flow restrictor movable in an orifice to vary flow of fumes from an engine crankcase to an intake manifold in a vehicle. The valve also includes a...
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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...
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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...
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7198248 |
Valve for fluids, liquids or powder material having a diaphragm shutter controlled by shape memory means
A valve for gases, liquids or powdery material, comprises a diaphragm shutter element having a central part and a peripheral edge connected, respectively, to a central support and to a peripheral...
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7192001 |
Thermopneumatic microvalve
A microvalve device includes a semiconductor-based valve housing that defines a flow passage, and a valve face disposed within the valve housing and in fluid communication with the flow passage....
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7182101 |
Device for controlling the flow of a fluid in one or more conduits in an electrical appliance, particularly in a dishwasher machine
A device for controlling the-flow of a fluid in one or more conduits in an electrical appliance, particularly in a dishwasher machine, comprises at least a control member, movable between two or...
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7175772 |
Small scale actuators and methods for their formation and use
An actuator assembly and method for making and using an actuator assembly. In one embodiment, the assembly includes an actuator body having an actuator channel with a first region and a second...
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7140391 |
Multiway valve
A multiway valve contains a housing having several inlets and outlets and a chamber. Several seats are provided and each is respectively associated with one inlet or one outlet. A closure element...
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7114913 |
Lubricant-cooled gas compressor
In a lubricant-cooled gas compressor ( 10 ) the temperature of separated lubricant returned to the air-side ( 11 ) is monitored by a thermostatically controlled restrictor valve ( 22 ) which...
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7104517 |
Polymer valves
The invention relates to a method of controlling flow of liquids in a micro channel structure. It comprises providing in said micro channel structure plugs ( 34 ) of polymer material in said...
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7093817 |
Flow control assemblies having integrally formed shape memory alloy actuators
In one embodiment of the present invention, a shape memory alloy (“SMA”)-actuated flow controller comprises a number of grille members, each having a long axis and being slideable relative to...
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7055793 |
Valve with compact actuating mechanism
The present invention relates to a valve having a base body with a passage opening, a movable valve member for closing and opening the passage opening and an actuating mechanism for moving the...
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7040349 |
Piezo-electric actuated multi-valve manifold
An apparatus controls flow of a fluid from at least one inlet port to at least one outlet port. A support has a rigid, non-flexible portion, at least one pivotable relatively rigid, non-flexible,...
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7025323 |
Low power integrated pumping and valving arrays for microfluidic systems
Low power integrated pumping and valving arrays which provide a revolutionary approach for performing pumping and valving approach for performing pumping and valving operations in microfabricated...
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7025324 |
Gating apparatus and method of manufacture
A gating apparatus for controlling the gap between two surfaces that includes an upper structure having a polished central region portion, an elastically deformable fulcrum structure, and an...
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7011288 |
Microelectromechanical device with perpendicular motion
A microelectromechanical device wherein the displacement of an electrothermally compliant actuator is perpendicular to a mounting substrate allowing in a first embodiment a fluid control valve to...
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6994115 |
Thermally actuated microvalve device
A microvalve having a generally planar plate valve body defining a chamber and a plate valve member movable in the chamber about a pivot axis that is perpendicular to the valve body to control the...
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6988672 |
Valves
A temperature sensitive valve ( 10 ) includes a body ( 11 ) affording a passageway ( 12 ) for fluid, a valve member ( 15 ) which is moveable relative to the body ( 11 ) between first and second...
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6981687 |
Bubble-actuated valve with latching
A bubble-actuated valve with latching may be utilized to regulate fluid flow in any number of applications, including the controlled delivery of drugs or other bioactive agents or compounds. The...
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6955187 |
Zinc-air battery control valve
A zinc-air battery and control valve for controlling air flow to energize the battery. Telescoping inner and outer valve sleeves each have a plurality of openings that when aligned communicate air...
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6945276 |
Valve with unilaterally constrained piezoelectric bending element as actuating device
Valve with a displaceable actuating device that controls the movements of at least one actual sealing element for opening and closing, and the actuating device is loaded with an elastic element...
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6926246 |
Method of setting and actuating a multi-stable micro valve and adjustable micro valve
A micro valve and a method for setting or actuating a micro valve for use in fluidic applications includes cooling an array of actuating members made of Shape Memory Alloy (SMA) material. The SMA...
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6883326 |
One-shot electro-pneumatic actuator
A one-shot, electro-pneumatic actuator apparatus for quickly supplying a pressurized fluid to an external device upon the actuation of an external control signal. The actuator includes a housing...
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6883774 |
Microelectromechanical high pressure gas microvalve
A microvalve and a method of forming a microvalve. The microvalve comprises first and second layers, a diaphragm member and a switching means. The first and second layers are secured together to...
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6845962 |
Thermally actuated microvalve device
A microvalve device for controlling fluid flow in a fluid circuit. The microvalve device comprises a body having a cavity formed therein. The body further has first and second pilot ports placed in...
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6840257 |
Proportional valve with shape memory alloy actuator
A proportional valve is disclosed for controlling the outlet pressure of a fluid flowing therethrough. The valve comprises a valve body having an inlet port and an outlet port for the fluid. The...
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6791233 |
Semiconductor device
A flexible area 2 is joined at one end via a thermal insulation area 7 to a semiconductor substrate 3 which becomes a frame and at an opposite end to a moving element 5 . The thermal...
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6764020 |
Thermostat apparatus for use with temperature control system
A thermostat apparatus is provided. The thermostat apparatus comprises a thermostat and a positioner for establishing different operating temperatures for thermostat.
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6761420 |
Proportional micromechanical device
The present invention provides a proportional microvalve having a first, second and third layer, and having high aspect ratio geometries. The first layer defines a cavity with inlet and outlet...
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6742760 |
Flow control device
Devices for controlling the flow of fluid through plastic tubes, such as tubes which are part of a disposable blood donation tubing set are disclosed. The device has a clamp adapted for attachment...
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6729599 |
Liquid microvalve
A valve for the control of fluid flow in microsize systems, such as for transfer of small samples of blood for processing. An actuator beam comprised of a microribbon formed of a shape memory alloy...
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6722632 |
Thermally operated valve containing liquid and filler for automatically modulating the flow of fluids
A valve for automatically modulating fluid flow includes a flexible flow adjustment member having a variable diameter passage therethrough and an outer surface and a shell surrounding at least a...
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6708945 |
Flow rate control valve
A flow rate control valve includes a second substrate having a flexible thin film and interposed between a first substrate having a heating mechanism and a third substrate having a sealing section....
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6705585 |
Multi-purpose valve
A multi-purpose valve includes, a band of a thermodynamic metal alloy with shape memory, with a memorised shape and a transition temperature which lies in the range for the normal body temperature...
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6695061 |
Downhole tool actuating apparatus and method that utilizes a gas absorptive material
An actuator uses a gas absorptive material to produce displacement of a member of the actuator. In a described embodiment, an actuator includes a metal hydride powder. When the powder absorbs...
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6691977 |
Shape memory alloy fuel injector
An actuator for controlling the flow of a fluid stream through a valve comprising a shape memory alloy element that positions a valve element to a first position when said SMA element is in an...
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6684904 |
Variable pressure valve apparatus
A valve can varied in operating pressure and stopped in opening and closing by an efficiently movable actuator due to feeding of electric power without malfunction due to disturbance of magnetism,...
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