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WO/2001/043798A1 |
A pump used to infuse a fluid into a patient is controlled in accordance with an algorithm that enables a microprocessor (17) to monitor and adjust each pump cycle to compensate for a differential pressure between the pump's inlet and ou...
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WO/2001/040646A2 |
A system for dispensing and filtering fluid is disclosed, in which the fluid flow path is substantially vertical from the fluid inlet (12) through fluid dispense (168). Substantially all wetted surfaces are of a non-contaminating materia...
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WO/2001/033133A1 |
Arrangement in a lubricant pump (1) comprising a housing (6) equipped with outlets (9) and lubricant chamber (2). An electrical arrangement (19) is adapted to drive an axially displaceable piston (12) in an axial cylindrical bore in the ...
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WO/2001/030421A2 |
A piston comprises a first member (1404) and a second member (1201). The first member (1404) has an external proximate side and an external distal side. The external proximate side is adapted to contact the fluid and is made of a materia...
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WO/2001/021525A1 |
A precision dispensing pump (10) for dispensing fluids and method of dispensing for use in semiconductor packaging and/or semiconductor assembly. The precision dispensing pump (10) employs a working fluid displacement drive (40) for volu...
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WO/2001/018396A1 |
Programmable, fluid pressure actuated blood processing systems (10) and methods are used in association with a blood separation device (18). The systems and methods employ a cassette (28), which contains several preformed, pneumatically ...
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WO/2001/018394A1 |
A flexible apparatus for metering agricultural chemicals in a wet blade chemical distribution system consists of a modular peristaltic pump delivery apparatus (24) having an impeller (38) and a mounting bore (30) in a computer-controlled...
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WO/2001/017604A1 |
Blood processing systems (10) and related methods place first (PP1) and second (PP2) fluid actuated pump stations in in-line communication between a source and a destination. The systems and methods apply fluid pressure pump strokes to t...
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WO/2001/017607A1 |
Blood processing systems and methods employ on-line mixing of a replacement fluid, e.g., saline, as a blood component, e.g., red blood cells or plasma, is being returned to a blood donor.
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WO/2001/007354A2 |
The system includes a pump (1) with a removable pump module (10) with at least one displacement piston (80) and at least one piston valve (81). A motor (14 & 22) and base assembly provides the supporting components of the pump, which can...
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WO/2001/004584A1 |
The invention relates to a dosing device with a novel valve body (32) that comprises two force-operated valves (33, 34) and/or a novel pump body (31) that comprises bellows (23) that receive and convey a hydraulic medium (41). The invent...
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WO/2001/002100A1 |
The invention concerns a pre-compression spray pump for dispensing measured amounts of a fluid product, comprising a piston (1) integral with an actuating rod (2) and sliding in a pump body (3) comprising a pump chamber (10) defined betw...
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WO/2000/078377A1 |
The invention relates to a mechanically operated liquid pump, in particular, for medicinal or physiologically nutritional liquids. According to the invention, the pump has the following features: a pouch (1) for receiving the liquid (2),...
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WO/2000/064570A1 |
An apparatus and method are described for customising a cosmetic product, to a customer, at the point of sale. The apparatus includes a program for receiving external information on at least one of the customer's skin properties and conv...
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WO/2000/061945A1 |
The object of the invention is a pumping method and arrangement, in which at least two chamber pumps (A, B) are operated in order to achieve a constant output flow. In the pumping procedure and arrangement in question, the entry chamber ...
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WO/2000/056465A1 |
The invention concerns a pump comprising a cylindro-conical body (1) defining a metering chamber (10) closed in its bottom part by an inlet valve (11) and at its top part by a mobile piston (2) co-operating with plastic return means (3) ...
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WO/2000/047894A1 |
A constant volume suction and discharge device which can be used in a dispensing device and an automatic analyzer and is simple in structure, less in number of parts, high in reliability and accuracy, and low in cost, comprising a motor ...
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WO/2000/047895A1 |
A hydraulic machine comprising the following: an envelope (2); a differential piston (15) consisting of two parts (15a,15b) which have a different diameter and are able to move in two corresponding chambers (7,6); hydraulic switching mea...
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WO/2000/045963A1 |
The invention concerns a dispenser for chemically unstable products resulting from a mixture of at least two liquid and/or pasty constituents, comprising an external housing (1) containing at least two environmentally sealed sections (11...
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WO/2000/044420A1 |
An intravascular administration set (14) includes an axially actuated reciprocating pump head (98) having a pump head inlet (110) and a pump head outlet (112). An inlet tube (96) has a first end attached to the pump head inlet (110) and ...
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WO/2000/041816A1 |
The present invention relates to a dispensing device (1) for a fluid (10), the dispensing device (1) comprising a reservoir (11), a shaft (12), a back seal (13), a damper (14), a piston (151) and a one-way valve (16), the back seal (13) ...
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WO/2000/039460A1 |
The invention relates to a fuel metering pump (1) of prior art comprising a solenoid coil (2), an anchor (3), a delivery piston (4) and spring-loadedalves. According to the invention, the spring-loaded valves are embodied as an electrica...
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WO/2000/031416A1 |
A pump controller and pump controlling method for dispensing a precise amount of low viscosity fluid are provided in which the problems of double dispenses and stuttered dispenses are avoided. In particular, the timing of the valves and ...
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WO/2000/025844A1 |
An improved pump is provided for controlled delivery of fluids wherein the pump includes a reservoir and a movable piston. A plunger slide is in removable contact with the movable piston. A motor is operably coupled to a drive member, su...
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WO/2000/025852A1 |
A method and apparatus for a connection interface between a reservoir or syringe, infusion set tubing, and an infusion pump is provided. A base is provided which is adapted to receive a reservoir. The base has a base engagement member, s...
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WO/2000/023712A1 |
A dispensing pump (10) includes first and second sleeve assemblies (11, 12). Each sleeve assembly includes a rotary valve (17) having an input and output position and a longitudinally displaceable piston (15, 16) that moves between a fir...
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WO/2000/022298A2 |
A diaphragm metering pump (20) has an electromagnetic drive comprising a coil (28) and a movable armature (30). A shaft (40) connects the drive to the diaphragm (46). The electronic control consists of a pulser circuit (64) with the micr...
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WO/2000/017459A1 |
A proportioning pumping system injects an injection fluid (A) into a pressurized conduit (C) flowing with a working fluid (B) at a constant proportion of injection fluid (A) to working fluid (B) regardless of changes in flow rate or pres...
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WO/2000/009270A1 |
Disclosed is a dosage dispenser for dosing at least two constituents that are conveyed from a receiving compartment allocated thereto via a respective pump unit (12a, 12b). The mixture ratio is adjusted via a transmission element (38), w...
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WO/2000/008336A2 |
A pump includes a housing (12), an enlarged block (32), an inlet fluid conduit (28), an outlet fluid conduit (38) and a flexible diaphragm (46). The housing defines a chamber (14) having an inlet (16) and a spaced apart outlet (18). The ...
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WO/1999/063217A1 |
The invention relates to a pumping device comprising a pump assembly (4) which is configured as a reciprocating piston pump. The pump displaces fluid by means of a reciprocating piston (6, 7). The inventive pumping device also comprises ...
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WO/1999/055468A2 |
The invention relates to a dosing dispenser (1) for multicomponent mixtures in which the components are accommodated in cartridges (14). A pump (18) is assigned to each cartridge (14). Said pump dips with the pump base thereof into an in...
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WO1998031935A9 |
A liquid pumping apparatus for pumping liquids, more specifically a linear peristaltic pump apparatus. The apparatus consists of a high durometer compressible elastomeric liquid flow tube (12), an infeed valve assembly (26), an outfeed v...
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WO/1999/019628A1 |
A dispensing unit for a fluid dispensing machine comprises at least an inlet duct (35) and an outlet duct (36) for fluid products, connected to a variable-volume pumping chamber (30) comprising at least one flexible wall (30a). Two non r...
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WO/1999/017019A1 |
A pumping device for feeding and metering liquids, in particular medical liquids, such as dialysis liquids, has a piston unit comprising a driving device and a piston, as well as a membrane unit comprising a membrane and a first chamber ...
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WO/1999/007462A1 |
The invention relates to a machine for filling the edge joints of insulating glass panes with a semiliquid to paste-like sealing compound. Said sealing compound consists of a main constituent and a secondary constituent which are differe...
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WO/1998/055199A1 |
A fluid delivery method and apparatus implementing active phasing to actively restore the substantially exact mechanical positions of driven components in a delivery system in order to precisely reproduce the mechanical signature and hyd...
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WO/1998/053777A1 |
An apparatus and method are disclosed that utilize piezoelectric materials as part of a delivery system capable of the rapidly repetitive dispensing of a fluid to an intended target site. In a particular embodiment, the apparatus contemp...
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WO/1998/053208A1 |
The invention relates to a solution for sealing the piston-cylinder unit (1, 2) of reciprocating diaphragm pumps which ensures that said piston-cylinder unit (1, 2) is permanently and reliably sealed while being simple to assemble. To th...
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WO/1998/040309A1 |
A condiment dispensing apparatus for dispensing condiments from a bag-in-box type container (108). There is a high durometer compressible elastomeric liquid flow tube (14), an infeed and outfeed thereto and therefrom, and a movable anvil...
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WO/1998/035888A1 |
The present invention relates to an aerosol dispensing apparatus, more particularly to aerosol dispensing valves (5) incorporating a controlled metered dispensing function wherein the metering chamber (7) holding the next aerosolized dos...
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WO/1998/028539A1 |
The invention relates to a method for enhancing the dosing precision of a dosing pump which is driven by an asynchronous motor via an excentric gear. The supply voltage of the motor is cut off approximately half a cycle time before a des...
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WO/1997/035659A1 |
Instead of a discontinuous mixing process for mixing two or more materials for a paint-spraying plant, the invention proposes a continuous mixing and conveying process including the relevant device. To this end, use is made of individual...
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WO/1997/033090A1 |
A metering pump (P) including a motor compartment (1) with a drive piston (2) movable within a drive chamber (3) having an inlet (4) and an outlet (5) for a main liquid, as well as control means (D) for controlling the movement of the pi...
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WO/1997/032128A1 |
The invention relates to a pump system for providing and maintaining a controlled outflow, comprising a couple of piston pump units (1a, 1b), having at least two cylinders (2a, 2b, 2c, 2d) each with a piston (3a, 3b, 3c, 3d) slidably arr...
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WO/1997/024529A1 |
A fluid delivery apparatus comprising two or more delivery syringes (17), each delivery syringe comprising a syringe housing (18) defining a tube with a passage having a fluid outlet, and a syringe plunger arranged to slide axially withi...
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WO/1997/003290A1 |
A membrane dosing pump (1) has a rotary driving motor (3) electrically connected to control electronics (4). The motor is controlled in such a way that at the beginning and end of each dosing operation the driven membrane preferably alwa...
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WO/1996/015370A1 |
The invention concerns a pump (10) for metering liquids out of a tank (18) into a delivery line (11), the pump having, fitted on the output side, an air-purge device (12) which is designed to separate off gas, in particular air, entraine...
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WO/1996/010697A1 |
A positive displacement pump for dispensing metered quantities of fluid. A piston (19') is located for reciprocating movement in a piston chamber (15) with movement in at least one direction being under the action of an applied fluid pre...
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WO/1996/005428A1 |
A direct action fluid motor (10) and injection pump (12) which injects small quantities of a secondary fluid into a primary fluid stream. A housing (14) having an inlet (18) and an outlet (20) connected to a primary fluid conduit. The ho...
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