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Document Title |
JP2009097516A |
To provide a syringe pump capable of adjusting the movement of a piston more precisely.The syringe pump to move the piston for sucking and discharging a liquid in a constant quantity is configured with a linear actuator to work by using ...
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JP4259981B2 |
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JP2009516805A |
The volume-metering pump device comprises a pump member associated with a manifold member comprising a body containing a manifold chamber having ports providing connections with the pump member, with an admission duct connected to a feed...
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JP4255701B2 |
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JP4250713B2 |
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JP4230081B2 |
To provide a multiple plunger pump without pulsation. Multiple plunger pumps 3a, 3b are formed in such a constitution that valveless suction ports 14 and delivery ports 15 connected to a cylinder chamber are disposed relatively opposed t...
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JP2009030442A |
To suitably generate a mixed fluid by a plurality of kinds of fluids, without complicating a constitution and operation.Chemical pumps 10A and 10B have a pump room 13 for filling chemicals, and a bellows partition member 12 capable of va...
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JP4224106B2 |
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JP2009502448A |
A mechanical liquid pump (1), especially for medical or nutritionally physiological liquids, comprises a housing (2), a closeable access for supplying the liquid, an elastic element for storing and dispensing the liquid, and an outlet. T...
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JP4214770B2 |
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JP2009013957A |
To provide a liquid feeding device capable of always feeding liquid of constant flow rate by reducing instability of liquid feeding caused by accuracy of processing of a cam, accuracy of phase of cams, and accuracy of processing of a sec...
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JP4206308B2 |
The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate with high accuracy and in discharging bubbles at startup. At startup, a first plunger feeds solvent at a large flow ...
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JP2008546520A |
A cartridge for selectively dispensing an additive to water that includes a housing, a bladder disposed within the housing, and a pump connected to the housing and in fluid communication with the bladder. The bladder is configured to con...
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JP4203138B2 |
It is sought to accurately control the discharge rate of a pump according to the frequency of a current pulse output applied to an electromagnetic coil. The pump comprises an electromagnetic solenoid 13, a plunger 18 driven thereby, a ch...
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JP4184605B2 |
A proportioning dispenser for proportioning at least two components which are each supplied via a pump unit from an associated accommodating compartment is disclosed. The adjustment of the mixing ratio is effected via a transmission memb...
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JP4171299B2 |
The methods serves for activating an electric motor of a metering pump with which the fluid quantity (Vnom) to be delivered is set by an external impulse trigger, wherein a predetermined delivery quantity (Vnom) is allocated to each impu...
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JP4166570B2 |
A micropump provided with a cylindrical body ( 1 ) containing a measuring chamber ( 10 ) defined by a piston ( 2 ) and communicating firstly with a tank via an inlet orifice ( 10 a) provided with an inlet valve, and secondly with the out...
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JP4164029B2 |
A continuous operation metering valve, based on true volumetric positive displacement technology, uses an innovative dual rack and drive pinion design that enables the valve (34) to dispense from one meter chamber (32) while the other me...
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JP2008215978A |
To provide a liquid feed pump capable of keeping a mass flow rate constant, and a liquid chromatograph using it.The liquid feed pump 40 is equipped with a pump head 20 having a pump chamber 21 with which an inflow passage for permitting ...
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JP4150556B2 |
To provide a metering syringe pump capable of reciprocating a piston by converting rotary motion to linear motion without using a gear and reducing the manufacturing cost. In a metering syringe pump provided with a syringe 206 and a pist...
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JP4149822B2 |
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JP4148313B2 |
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JP4145650B2 |
A metering device for the conveyance of small substance quantities out of a reservoir into an application space by a diaphragm micropump that can be used, in particular, for the conveyance of small doses of gases includes the diaphragm m...
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JP4142163B2 |
The present invention is a pumping system which mixes liquids with a well-controlled proportioning and flow rate. The pumping system according to the invention comprises a liquid mixing device (MX) placed upstream from a pump (P). The li...
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JP4136477B2 |
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JP4135780B2 |
An apparatus for injecting constant quantitative chemicals which is capable of injecting a chemical solution into ultra pure water without generating particulate contamination, and furthermore, the injection interval of the chemical solu...
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JP4122254B2 |
An automated fluid formulating system for use in small scale laboratory operations. The system utilizes a computer to provide precise control over the measurement of ingredients and the entire formulating process. The novel feature of th...
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JP4119128B2 |
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JP2008151011A |
To provide a pump apparatus that is simple in constitution and easy to control, and in addition, is free of pulsating flow, and discharges a very small amount of liquid from a vessel.The pump apparatus includes a vessel body (20) into wh...
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JP4108330B2 |
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JP4103395B2 |
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JP2008132333A |
To improve a control of delivering a cardioplegic solution at a low flow, and prevent blood in a cardioplegia delivery line from being damaged by its peristaltic motion.A cardioplegia system 10 for delivering the cardioplegic solution to...
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JP4096109B2 |
To provide a pumping device for pumping up liquid stored in a vessel by elevating or lowering a follow plate by an elevating device to measure amount of pumping accurately and inexpensively without receiving restrictions in property and ...
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JP4095719B2 |
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JP2008517214A |
A projection which integrally extends from an elastomeric head (5) to form a partition (41), is pressed against a valve seat, when negative pressure is generated in a pumping chamber (17) formed by inner wall of the elastomeric head and ...
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JP2008088949A |
To provide a positive displacement pump capable of increasing discharge flow with high frequency of volume change of a pump chamber and high proportionality of discharge flow in the positive displacement pump comprising the pump chamber,...
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JP4060273B2 |
A dosing pump is provided comprising a working membrane defining a working area, and a pump drive for creating an oscillating movement of the working membrane. The direction of the pump drive can be inverted and the displacement element ...
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JP2008025515A |
To provide a plunger pump type liquid delivery device excellent in flexibility of delivery quantity adjustment and capable of extending product life.Two motors of a servo motor 14 for rotation and a servo motor for reciprocation are used...
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JP2008501518A |
An airless dispensing pump for liquid products including a push button with a spray nozzle which communicates with a network of channels that is provided locally on the wall of an internal truncated-cone-shaped bore, and a housing. An up...
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JP4036431B2 |
A method and a device for accurate delivery, dripping and ejection in the form of flying droplets are provided. ?>A liquid material delivering method wherein a liquid material is pressurized by a plunger sliding while closely contactin...
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JP4037040B2 |
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JP2008002453A |
To provide a mixing pump device which can prevent a variation in the concentration of the liquid flowing out of respective outflow paths when allowing a liquid mixed in a pump chamber to flow out of a plurality of outflow paths, and a fu...
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JP2008002454A |
To provide a mixing pump device which can prevent a variation in the concentration of the liquid flowing out of respective outflow paths when allowing a liquid mixed in a pump chamber to flow out of a plurality of outflow paths, and a fu...
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JP4025646B2 |
A piston carrier (46) supports an elongated, slender piston rod (12) for reciprocation in a pump cylinder (30) to pump fluid into and out of the cylinder (30). The piston rod (12) is made of a material such as sapphire or zircon and has ...
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JP2007327449A |
To accurately restrain reduction in a delivery quantity in the initial stage of a delivery period caused by looseness of a mechanical system, in a non-pulsation pump using a reciprocating pump. The reduction in the delivery quantity in t...
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JP4024639B2 |
A chemical pump includes a pressure chamber, a partition member for dividing the pressure chamber into a cleaning pressure chamber and a discharging pressure chamber, a filter part disposed on the primary side of the discharging pressure...
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JP2007536464A |
The invention relates to a metering pump (1), especially for lubricants, and to a method for the long-term lubrication of a lubrication point (16) preferably over several years. Said metering pump (1) is provided with at least one meteri...
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JP2007291857A |
To provide a metering pump device highly accurately performing metering discharge, even when pressure difference is generated between both sides of an outflow-side valve. In the metering pump device 1, two reciprocating pump devices 10A,...
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JP3136809U |
To provide a piston at a low cost because it can be formed by a single member without requiring a sealing component such as an O-ring. A disk-shaped piston 1 is provided in which a protrusion ring 3 having a diameter slightly larger than...
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JP2007292008A |
To provide a plunger pump with a stroke adjuster capable of simplifying a stroke adjustment mechanism for mechanically controlling operation and reducing the cost in view of that an electric control circuit is expensive and failure is ca...
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