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Patent Searching and Data


Matches 651 - 700 out of 6,303

Document Document Title
WO2002073184A3
A novel gas injection valve for injecting discrete charges of gas into a mobile phase or carrier stream is provided. Injection valves of the invention comprise a plurality of microvalves capable of receiving gas at different pressures an...  
WO/2002/103227A1
A diaphragm which is made from an alloy composition having a Young's modulus of 40 GPa to 90 GPa. The diaphragm allows the manufacture of a diaphragm valve exhibiting a widened range of control with respect to a flow rate of a fluid. The...  
WO/2002/103230A1
A pinch valve, comprising a cylinder body, a tubular handle screwed into the cylinder body, a lock nut screwed onto the tubular handle between the handle and the cylinder body, a connection bar with a spring retainer at a bottom end slid...  
WO/2002/101269A2
A vacuum demand valve (10) is capable of delivering a flowable material. The valve (10) has a housing (11) having a proximal end (14), a distal end (16), an intermediate segment (18) therebetween defining a passageway (24) wherein the fl...  
WO/2002/099324A1
A four−way valve, comprising a body having a main flow passage, a valve chamber, and a pair of branch flow passages and a cylinder body having a piston inserted therein, wherein the valve chamber is allowed to communicate with the main...  
WO2002081934A9
A pneumatic valve for use in laminated plastic microfluidic structures. This zero or low dead volume valve allows flow through microfluidic channels for use in mixing, dilution, particulate suspension and other techniques necessary for f...  
WO/2002/087409A2
Indwelling catheter (60) having an upper distal end (66) having a portion that can expand within a bladder type spaces without having to be inflated. An embodiment allows for at least one slit on an upper side of the catheter tube (60) a...  
WO2001069111A8
The present invention relates to an apparatus (1) for tapping of water, which comprises a valve device (4) with an inlet (19), connected to a water source, as well as an outlet (21) and a seat (29), positioned there between and actuated ...  
WO2002041994A3
An assay device in which to carry out a fluid-phase chemical assay, comprising means for supporting a test substrate, a sample chamber for receiving a fluid sample and at least one fluid control device for controlling the movement of flu...  
WO/2002/081934A2
A pneumatic valve for use in laminated plastic microfluidic structures. This zero or low dead volume valve allows flow through microfluidic channels for use in mixing, dilution, particulate suspension and other techniques necessary for f...  
WO/2002/082057A2
A microcytometer which combines lysing and cytometry into a unified system that achieves blood lysis and white blood cell count in a single device. The device focuses the white cells into a thin ribbon which is then focused into a single...  
WO/2002/081085A2
Microfluidic devices and methods for performing a microfluidic process are presented. A microfluidic device conforms with a standard well plate format. The device includes a well plate comprising a plate and an array of wells formed on o...  
WO/2002/078765A2
Programmable methods and apparatus for providing flow control in valves. In a preferred embodiment flow control occurs by pressing opposite sides of a very flexible tube section (3) together to selectively, and programmably, closing and ...  
WO/2002/079640A1
The invention relates to an electromagnetically actuated valve comprising a valve longitudinal axis (3), an electromagnetic circuit (1, 2), a displaceable actuating member (25), which co-operates with a fixed valve seat (23) to open and ...  
WO/2002/075187A1
An apparatus for squeezing pipes, comprising a first jaw having a first squeezing surface and a second jaw having a second squeezing surface. The first jaw and the second jaw are interconnected for relative displacement at proximal ends ...  
WO/2002/075188A1
An integral sterile access/GMP valve (10) having a main outlet (32) and a sampling outlet (34).  
WO/2002/073073A1
An intercept valve for fluids, comprising a tubular element (2) made of a deformable material, which internally defines a passage provided with an inlet (3) and an outlet (4) for a fluid to be intercepted. The tubular element (2) is hous...  
WO/2002/073184A2
A novel gas injection valve for injecting discrete charges of gas into a mobile phase or carrier stream is provided. Injection valves of the invention comprise a plurality of microvalves capable of receiving gas at different pressures an...  
WO/2002/070932A2
A microvalve for regulating a flow of fluid is provided. The microvalve (201) has a first plate (205), a second plate (215), a sealing membrane (217), a spacer membrane (219), a third plate (227), an actuation membrane (229) and a piston...  
WO2002033296A3
A valve assembly (10) is described comprising a valve body (12) and a manifold body (14) that overlays the valve body (12). In its simplest form,a pair of ports (22, 24) opens to the upper surface of the valve body (12) adjacent one anot...  
WO/2002/068849A1
A microactuator device (12) includes a base (20) with at least one electrode pad (24) and a permeation membrane (18). Permeation membrane (18) is typically a water-permeable membrane that is able to deform by applying an electric charge ...  
WO/2002/068850A1
An ctuator base (16), bobbin (14), and pole piece (24) form a pocket for an armature (30) that a flexible membrane (40) encloses to form an armature chamber filled with an incompressible fluid. The membrana (40) protects the armature (30...  
WO/2002/066876A1
A valve body for a valve includes a body (3) having an internal cavity (13) formed therein. An inlet passage (27) and an outlet passage (31) are formed in the body (3). ________________________ The inlet passage (27) has an inlet opening...  
WO/2002/065003A2
A plurality of embodiments of a flexible, discrete valve seat according to the present invention are provided for use in a high-purity valve. In one embodiment, the valve seat is retained in contact with a sealing surface on the valve bo...  
WO/2002/058772A1
A breath actuated dispenser there-shown has a generally L-shaped hollow body (1) with a mouthpiece (2). An aerosol drug can (3) is mounted in the body. The can has a dispensing spout (4), which engages a receptor moulding (5) incorporati...  
WO2001001025A9
A method of fabricating an elastomeric structure, comprising : forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending alo...  
WO/2002/057669A1
Disclosed is a diaphragm valve. When a chamber is expanded by fluid supply into a pipe-shaped button, a valve stem is slightly moved upward by a rod and a shaft to open an outlet of an orifice. Fluid received in a space between a cap and...  
WO2001071226A3
A microvalve device for controlling fluid flow in a fluid circuit (10). The microvalve device comprises a body (12) having a cavity formed therein. The body further has first (20) and second (22) pilot ports placed in fluid communication...  
WO/2002/046648A1
A pinch valve, comprising an elastic tube body (1), a cylinder body (4) having a cylinder part (2) and a cylinder cover (3), a piston (11) in slidable contact with the inner peripheral surface of the cylinder body, a pressing element (15...  
WO/2002/043615A2
A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending alon...  
WO/2002/041994A2
An assay device in which to carry out a fluid-phase chemical assay, comprising means for supporting a test substrate, a sample chamber for receiving a fluid sample and at least one fluid control device for controlling the movement of flu...  
WO/2002/042671A2
A valve device (10, 100) and a method for operating at least two valves (28A and 28B), or 128A and 128B) is actuated by an actuator (25, 27; 25', 27') and arranged for controlling fluid flow in at least two separate fluid lines (12A, 12B...  
WO/2002/038992A1
The invention concerns a safety valve comprising a body (2) traversed by an actuating rod (1) in translation relative to the body (2), wherein the rod passes through a bellows (3) comprising two metal walls, the bellows being fixed at ea...  
WO/2002/036485A1
A valve integrally associated with a microfluidic transport assembly useful for regulating the flow of a liquid sample through an analytical instrument, and method for manufacturing the same are disclosed. The valve includes first and se...  
WO/2002/036998A2
A pinch valve (10) for pinching closed a tube (18) is comprised of a linear actuator (12) connected pivotally a pointer (16). The linear actuator is parallel to the tube and the end of the pointer that engages the tube is made to follow ...  
WO/2002/035121A1
The invention concerns a fluid dispensing device, comprising a pump (50) and a dispensing head, including a body (1) defining a product discharge channel (2) terminated by a dispensing orifice (3), a rigid insert forming said pump outlet...  
WO/2002/033296A2
A valve assembly (10) is described comprising a valve body (12) and a manifold body (14) that overlays the valve body (12). In its simplest form,a pair of ports (22, 24) opens to the upper surface of the valve body (12) adjacent one anot...  
WO/2002/025146A1
The invention relates to a valve for closing liquid channels, especially for using in disposable cartridges for extracorporeal circuits. Said valve (2) comprises a valve body having a pressure channel (4) and a seal bonnet (6) which can ...  
WO/2002/025392A1
The invention relates to a pressure regulator having a closing member (4) that controls a pressurized fluid inlet (2) and on which a valve spring (7) that is disposed in a spring cup (8) is supported. The spring cup (8) consists of a jac...  
WO/2002/017994A1
An anti-free flow device (16) is disclosed for a fluid administration system (10) having a tube assembly (12) engageable with a pump (14) with one end of the tube assembly (12) connected to a source of fluid (46) and the other end in flu...  
WO2001073327A3
A sanitary diaphragm valve (10) is provided that includes a generally dome shaped diaphragm (E) having a central boss that can be connected to or driven by a valve actuator (D). The diaphragm includes an outer peripheral edge and a relat...  
WO/2002/014720A1
An inline process valve assembly (11) having a valve body (12) having a through bore (13)of circular cross-section forming a flow passage extending through the valve body (12) along a longitudinal axis and having a lower arcuate surface ...  
WO/2002/010624A1
A diaphragm valve (22) includes upper inlets (36,38), outlet (46) and a weir (28).  
WO/2002/004848A1
The invention relates to a valve (21) for a fluid or gaseous medium, with a displaceable valve body (8), by means of which the clear flow cross-section is adjustable. The valve (21), viewed in the direction of flow, comprises a pressure ...  
WO/2002/004850A1
A flow control valve capable of increasing a delivery flow rate gradually with a simple structure, comprising a flowout port (26) to deliver a pressure fluid to the outside, a valve disc (3) having a pressing part (31) to arbitrarily ope...  
WO/2002/004849A1
A pinch valve, comprising a main body (18) having an elastic tube body (1) stored therein, a cylinder main body (6) having a first cylinder part (3) positioned on the inside upper side of the main body and a second cylinder part (4) dive...  
WO/2002/002424A1
A dispenser (10) for flowable, viscous material (52) is provided which includes a reservoir (50) for the material (52) with an elongated, synthetic resin deformable outlet tube (80) presenting an outlet end (82) coupled to the reservoir ...  
WO/2002/000291A1
A valve arrangement is described for providing clinical nutrition. The valve arrangement is suitable for use with a rotary peristaltic pump and is capable of allowing flow of fluid in a first direction and capable of preventing flow of f...  
WO/2001/098693A1
The invention provides a valve (100) comprising, a housing (61) having an enclosed internal cavity (66), an aperture (68) formed in a wall of the housing providing communication with the enclosed internal cavity, a valve seat (72) surrou...  
WO2001066916A3
The improved hydraulic membrane valve for regulating fluid flow rate comprises a semiconical deflector (2) having an open flat top face (3) with a perimeter in the form of an isosceles triangle and a section equivalent to that of the pas...  

Matches 651 - 700 out of 6,303