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Patent Searching and Data


Matches 651 - 700 out of 5,809

Document Document Title
WO/1993/016308A1
A valve comprising a housing (2) with an inlet (4) and an outlet (6) and between the inlet and outlet a conduit (8) providing passage through the valve, which conduit is closed at a flexible closing section, the closing section consists ...  
WO/1993/010385A1
The object of the invention is to allow the smallest doses of substances to be supplied and shut off over a variable period of time in a very reliable manner and with stable operation. The new micromechanical valve essentially has three ...  
WO/1993/006877A1
An easy operating, durable closure device (2) for controlling the closure of a passageway in for example valves and the like used in medical applications. The device includes a cam surface (3) arranged about the circumference of a resili...  
WO/1993/001433A1
A valve arrangement has a valve housing (4) with a valve chamber (12) formed therein, which has an outlet (13) and an inlet (23) which is adapted to be connected to a pressure-medium source (1). A control valve (10, 26) is adapted, when ...  
WO/1992/020942A1
A fluid control valve arrangement includes a plurality of clusters or pairs of holes extending from one face to the other of a central block (11). The valves (20) comprise a plurality of deformable blisters (12a) formed in a resilient me...  
WO/1992/015825A1
A radiator valve comprises a housing (1) on which are arranged a pipe union (11) for connection to the radiator and a screw socket (13) for receiving the first closure piece (4), which is arranged on a hollow valve spindle (3). The first...  
WO/1992/009835A1
A diaphragm valve (1) comprises a valve body (2) defining a diaphragm opening (4) and a valve seat (9); a valve bonnet (5) secured to the valve body; a diaphragm (7) closing the diaphragm opening, the peripheral zone (10) of the diaphrag...  
WO/1992/003676A1
The pinch valve (10) described has an approximately tubular housing (12) running along its longitudinal axis, with an elastic hose (32) in the housing and moulded fittings at each of the two ends of the housing (12) to fix the ends of th...  
WO/1992/000476A1
A valve comprises a valve body (2) defining a through passage (3), a branch passage (7), and an aperture (11) in the wall of the through passage. A closure member (12) is movable between a first position in which the closure member seals...  
WO/1991/019922A1
A valve arrangement comprises a valve housing (4) which has a valve chamber (7, 13, 15) with an outlet (9, 10, 11, 12) and an inlet (16) which is adapted to be connected to a pressure-medium source (25), and a valve opening communicating...  
WO/1991/019097A1
A flap valve arrangement for one-way control of the flow of fluid in between an upstream chamber (15) and a downstream chamber (16), and particularly an inlet valve in a piston-type positive-displacement pump, has wall parts which define...  
WO/1991/019124A1
An adjustable control valve for flow regulation of gas or liquid has a controlled hose clamp device, preferably with two clamping members (K1, K2) disposed on respective sides of a hose (A) for adjustable compression of the hose and ther...  
WO/1991/019096A1
A fluid valve device for on-off control of fluid flow through a passage extending between two fluid ports (12, 15) and including a valve seat (17A) comprises a hollow valve member (21) which is movable into and out of sealing engagement ...  
WO/1991/019098A1
A positive-displacement pump, particularly a liquid metering or batching pump, includes a fluid inlet (13, 15), a pump chamber (16A, 16B) of variable volume, an outlet (14) through which fluid leaves the pump chamber, a driven ejection m...  
WO/1991/019123A1
A valve apparatus (1) comprises at least one valve device having a chamber (4), an inlet (5) to and an outlet (6) from the chamber. A movable member (7) in the chamber is arranged to displace a membrane (9), such that this is rolled agai...  
WO/1991/017375A1
An angularly shaped inflatable bladder assembly (10) adaptable to use as a damper or shut-off means for control of fluid flow in fluid flow systems and more specifically for control of air flow in air conditioning systems. The angularly ...  
WO/1991/016562A1
A flow control and pressure reducing valve has a valve body (250) with an inlet chamber (256) and outlet chamber (257) separated by a partition plate (258). A plurality of passages (265) are formed in the valve body spaced circumferentia...  
WO/1991/008409A1
Inflatable diaphragm valve comprising an inner diaphragm (11) forming a seal and an outer diaphragm (13) surrounding the inner diaphragm and enable to move outwardly under inflation. Inflation, possibly associated with a lifting motion, ...  
WO/1991/002169A1
A microvalve composed of multiple layers bonded together is distinguished by the fact that all layers are structured only from one side. Prior to bonding of a new layer to the preceding layer, the new layer is homogeneous or unstructured...  
WO/1991/000970A1
A hose clamp (50) for a hose (18), inside which a different pressure prevails from that of its environment, and having two arms (28, 30) between which said hose (18) may be squeezed with different forces and thus the hose cross-section m...  
WO/1991/000460A1
The present weir valve includes a weir disposed along a flow passage. A port at the other side of the weir is open to the flow passage when the diaphragm is lifted off the weir.  
WO/1990/015947A1
An inflatable valve member (B) includes a valve body (10) received in a fluid line (A) and defining a generally annular flow passage (C) therewith. A flexible member (100) disposed on the valve body (10) is selectively inflated to open a...  
WO/1990/014539A1
A diaphragm valve (2) comprising valve seats (11, 12) describing a sector of a sphere providing a complete closure of the inlet (13) and the outlet (14), when the diaphragm (16) assumes the shape of a spherical segment. The valve permits...  
WO/1990/012972A1
In a sampling valve comprising a stretchable hollow valve plug (10) mounted on the front end of an axially displaceable valve stem (7, 8), the plug is provided on its inner surface with a bead (14) projecting into a groove (15) in the st...  
WO/1990/010810A1
Through valve for monitoring or mechanically sealing the passage of pressurized fluid in a pipe. According to the invention, the device consists in compressing a rubber joint (1) with a seal (2) whose end is hemispheric. An outer sheath ...  
WO/1990/007073A1
A solenoid-operated pinch valve including a housing and a molded body coupled thereto by a snap-on connection. A solenoid coil assembly (70) is seated within the housing (32), a plunger (118) is accommodated within the solenoid (70) for ...  
WO/1990/003532A1
A diaphragm valve (A, A') includes a valve body (B, B') adapted to receive a replaceable diaphragm subassembly (C, C'). The diaphragm valve (A, A') includes alternative actuator structures (300, 360). The first actuator arrangement inclu...  
WO/1990/002290A1
For the purpose of providing a sealing stopper in a tube (11) which is to be closed-of to the flow of fluid therethrough there is used a bladder (10) which is introduced into the tube and inflated with air into tight abutment with the in...  
WO/1990/000652A1
A closure device for drainpipes has an elastic inflatable body (1) and can be actuated with only one hand, since the inflatable body completely encloses a pressurized gas container (2) to be connected to its pressurized gaz inlet (10). T...  
WO/1989/011787A2
Control valves are known which incorporate moisture sensitive material to control the flow of fluid through the valve. Described herein is a control valve (1) which incorporates a moisture sensitive material (4) in contact with and respo...  
WO/1989/012267A1
A back pressure regulator of the diaphragm type. A metal diaphragm is held in a cavity formed by opposed faces of top and bottom portions of the unit. The opposed faces are tapered so that the depth of the cavity is greatest in the centr...  
WO/1989/009477A1
A micromechanical device comprises an element whose position can be varied consisting of a bimaterial system and which can be placed and maintained in a predetermined position. The instantaneous position of the element is determined by m...  
WO/1989/005417A1
A valve is disclosed comprising a first body portion (2) having a first surface (16), a second body portion (4) having a second surface (51) facing the first surface, a flexible sheet (8) positoned between the first and second surfaces, ...  
WO/1989/001241A1
In a membrane valve fluid flow control device (10) which includes a pair of superimposed surfaces (42, 42') wherein the membrane (20) is interposed between the surfaces under compression and further serves as a seal. A raised rib portion...  
WO/1988/004386A1
Method and device for mounting a body for use as a blocking or sensoring means in a conduit containing fluid. An installation unit is mounted on the conduit at that place, where the mounting of said body is desired, whereby sealing is es...  
WO/1987/002438A1
A device to be filled with fluid under pressure includes a plurality of low pressure segments (17), ports (14) and a low pressure compartment (13) interconnecting the segments, and a high pressure compartment (11) arranged such that fill...  
WO/1986/007625A1
A molded flexible conduit (2) and a make-before-break pinch valve including a slidably movable pressure member (46) spring biased normally against said conduit in closed condition of the valve, said conduit (20) including a pair of elong...  
WO/1986/003571A1
A flexible tubing occluding device (10) for releasably occluding flexible tubing (16). The tubing occluding device (10) includes housing (14) that is adapted to receive the tubing (16) and defines a tubing occluding surface against which...  
WO/1986/003276A1
An occluder valve (10) for closing off the flow of fluid in a flexible plastic tube includes linearly movable pinch member (24) coupled to a rotatable shaft through a nut. The shaft is coupled to an electric motor (44) through an electri...  
WO/1986/001493A1
A pneumatic valve mechanism, especially for controlling the movement of paper, comprises a mouthpiece (47) which defines an air intake (58), a bellows (10) coupled to the mouthpiece, a passage (42, 44) connecting the interior of the bell...  
WO/1985/002000A1
Opening and closing element for an S-shaped fluid flow line, used for flowing any fluid or solid (powdery, granular) material and adaptable to any form of package or installation containing fluids, characterized in that its shape consist...  
WO/1985/001786A1
The valve comprises a flexible membrane (3) forming a tight wall between a controlled chamber (8) and the inside of a conduit (1). According to the invention the conduit (1) is provided with a side opening (2) having a contour of which t...  
WO/1984/002965A1
Nozzle closing device comprised of a main duct (2) traversed perpendicularly by a flexible pipe (6) which may be inflated with compressed air to obturate the pulverization liquid passageway. The device may be comprised of two generally o...  
WO/1984/002564A1
A slide clamp (10) for flexible medical tubing (14) that includes a slot (18) having receiving (20) and crimping portions (22). A stabilizer (24) projects into the receiving portion (20) so that the slide clamp (10) may be kept at any se...  
WO/1983/002987A1
A valve comprises rolling diaphragm (7) supported at its outer periphery by an annular support member (8) within which the diaphragm rolls in response to inlet pressure so as to uncover an outlet opening (20) in the support member, there...  
WO/1982/004471A1
A tidal outfall valve comprises a chamber having an inlet (6) and an oulet (8). One wall of the chamber comprises a diaphragm (10) which can move into contact with a seat (9) to isolate the outlet from the inlet. A weight (18) provided o...  
WO/1982/001924A1
Valves (1) including an apertured body (2) allowing the passage of fluid may be sealed by a resilient closure (8) actuated by actuating means (28) so as to roll a portion of the closure (8) over the aperture (7).  
WO/1982/001384A1
Radiant energy (7) is used in conjunction with a boron phosphide semiconducting electrode (2) to at least partially power an electrolytic cell (1) in the generation of hydrogen (8), utilizing a bromide, preferably hydrogen bromide, as th...  
WO/1981/002770A1
Heretofore, prior tubing clamps have failed to overcome flow rate fluctuations attributed to cold flow and/or external stretching forces causing them to be unsatisfactorily unreliably for failing to maintain a prescribed flow rate. This ...  
WO/1981/002096A1
The discharge valve comprises a casing communicating with a cuff to be placed around the arm and with the manometer (1), casing which, in its portion intended to form the seat (25) of the air outlet, is covered with a washer (2) of elast...  

Matches 651 - 700 out of 5,809