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WO/1995/030089A1 |
A single-piston, multimode fluid displacement pump comprising an elongated chamber, a piston reciprocally mounted within the chamber, a driving mechanism axially aligned with the chamber and piston for accurately positioning the piston w...
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WO/1995/024556A1 |
A first component of a fluid material is pressed out of a cartridge (C) which can be emplied by means of a press (P). The main component flows through a feeding line (8) to a discharge line (11), driving two rotors (31) mounted in the do...
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WO/1995/019932A1 |
The invention concerns a process and a device for the combined conveyance and volume measuring of liquids. The conveyance is performed by imparting an overpressure or, respectively, a negative pressure to the liquid by means of a pressur...
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WO/1995/014634A1 |
A fluid-driven proportioning pump (10) for dispensing precise volumes of at least two different fluids (X, Y, Z). A drive cylinder (72) is divided into first and second drive fluid chambers (166, 168) by a drive piston (140) that is prop...
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WO/1994/013956A1 |
Metering pumps for the metered feed of liquids are fitted with an intake valve (8) built into an intake line from an intake container, a pump chamber (5) downstream of it with a pumping component (6) altering its displacement volume, a p...
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WO/1994/011710A1 |
The invention relates to a method and equipment for quantitatively dosing small amounts of liquid, especially in clinical or other similar wet-chemical analyzers. The dosing employs a liquid space (1) the volume of which can be changed a...
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WO/1994/004257A1 |
Apparatus (10) for delivering a metered quantity of additive liquid from a container (12) to a carrier liquid such as water supplied by pipe (16) comprises a fluid motor (18) driven by the flow of carrier liquid and a peristaltic pump (2...
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WO/1993/022556A1 |
The dosing arrangement comprises two first pumps (1, 2) and (1, 2') for a liquid medium B whose pistons (1, 1') are mutually connected by a piston rod (12), and two other pumps (3, 4) and (3', 4') for a liquid medium A which are position...
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WO/1993/010352A1 |
A mixing pump for liquids comprised of a pressure fluid driven two-chamber pumping unit (4, 9, 7) and a two-chamber feeding unit (6.14.15) for supply of an additive, which is to be mixed, in both of which the chambers are separated from ...
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WO/1992/014930A1 |
The current invention detects malfunctions in a variable flow delivery pump. These malfunctions prevent the pump from sustaining inherently high accuracy and/or cause damages to the pump. The invention detects the malfunctions without co...
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WO/1992/000455A1 |
An adjustable rotor and a radial piston machine which may utilize an adjustable rotor. The rotor has a primary eccentric (2) rotatable with a shaft (1) and a secondary eccentric (3) adjustable in position relative to the primary eccentri...
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WO/1991/019099A1 |
An apparatus for delivering measured liquid volumes comprises a dosing piston pump (13) having an outlet (53/54) for the measured liquid volumes, and a liquid accumulating device (12) including an accumulator chamber (17) having an inlet...
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WO/1990/015249A1 |
A variable displacement pump (3) comprises a piston (4) reciprocable within a cylinder (2), a displaceable inlet valve (5) adapted to control admission of lower pressure hydraulic fluid (9) to the swept volume area (10) of the piston (4)...
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WO/1990/012960A1 |
A pump and metering apparatus, comprising a frame supporting a liquid container with a movable plunger therein for discharging respectively drawing in liquid, the plunger being connected to a runner means (17), which by a nut portion (16...
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WO/1988/009006A1 |
A liquid additive injection pump has a hydraulic motor comprising a differential piston assembly reciprocable in a housing under the urging of a primary liquid into which an additive is to be injected. The piston assembly (30, 224) inclu...
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WO/1988/007712A1 |
Apparatus for providing a standard fluid flow comprising a closed chamber (10), a fluid aperture (12) for fluid to pass out of said closed chamber (10), a piston means (17), the outer diameter of the part of the piston means (17) which e...
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WO/1987/004586A1 |
The device for injecting a fluid into a network comprises storage and supply means (1, 2) for the fluid to be injected, an injector (11) and a proportioning unit (7) to obtain a constant injection ratio. The injector (11) comprises two h...
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WO/1987/002422A1 |
A metering device comprising a body (11) supporting and enclosing a bladder (13) which has an inlet and an outlet each controlled by a non-return valve (19 and 21), the body (11) is formed with an opening (22) and supports an operator (2...
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WO/1985/003555A1 |
An apparatus for use in the application of a binding composition consisting of two components has two pumps (2 and 3) of different capacities. One pump (2) is connected with a source (20) of one component and the other pump (3) is connec...
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WO/1985/001993A1 |
A metering pump comprises a drive unit (1) and a pump head (11), into and from which fluid which is to be metered can be sucked from an input line via a first non-return valve (17) or can be expelled to an output line (20) via a second n...
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WO/1983/003447A1 |
A dosing pump (1) allows to dose with accuracy a medium intended to be dosed in relation to time or a flow rate. The dosing pump (1) utilizes a predelivery obtained by a diaphragm (11) and a piston and cylinder pump for the dosing. The c...
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WO/1982/001222A1 |
A device comprising reservoirs (1, 2) for a base and a hardener respectively, feeding (3, 4) and dosing pumps (5, 6), a mixing chamber (7) and an executing member (9). The stability of the pressure of feeding the components is ensured by...
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JP7469752B2 |
To provide a metering pump which can dispense a prescribed quantity of fluid which is scooped up from a supply source so as to be reproducible in the fluid.A metering pump comprises: a chamber having a proximal part and a distal part; a ...
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JP2024512896A |
The present invention relates to a proportional discharge method and a pump associated therewith, the pump comprising a member (16) suitable for performing alternating motion and causing alternating translational motion when supplied to ...
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JP2024035196A |
An object of the present invention is to provide an in-line pump assembly that efficiently eliminates step loss and constantly and accurately supplies fluid. An in-line pump assembly for delivering fluid. The pump assembly includes a pum...
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JP7427371B2 |
To provide an injection oiler that enables a small amount of dosing with a small error fluctuation.An injection oiler (1) has: a cavity (4) for receiving a defined amount of lubricant; a dosing piston (6) which is designed to eject the l...
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JP7416546B2 |
A grease quantification device, comprising a grease injection mechanism and a quantitative adjustment mechanism. The grease injection mechanism comprises a cavity body (11), a piston assembly slidably disposed inside the cavity body (11)...
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JP7411661B2 |
A pump for a fluid product having a pump body held in place by a valve holder fastened in the pump body; a piston sliding around a rod, provided with an inner axial channel axially closed on the lower side of the rod and communicating wi...
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JP7382483B2 |
The present invention relates to a metering pump for a metering device, the metering pump being connectable to a storage container. The metering pump thereby comprises a non-return valve which has sealing elements on the base-side, which...
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JP2023154331A |
To provide a sample discharge system, a sample discharge device, a sample discharge method with an easy discharge operation of a sample, and a method for producing an artificial tissue.In a sample discharge system comprising a sample dis...
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JP7357179B2 |
This liquid supply device causes a tube diaphragm 15 serving as a first flexible member to expand to introduce a liquid into a pump chamber 16, and causes the tube diaphragm 15 to contract to discharge the liquid in the pump chamber 16 t...
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JP2023097137A |
To improve the durability of a seal member.In an air pump 10, when a piston 26 is moved to a rear side, an O-ring 38 is moved to the rear side by a front plate 32 of the piston 26. The front plate 32 is provided with a passing hole 32A, ...
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JP2023097138A |
To reduce negative pressure on one side by a piston in a cylinder.In an air pump 10, when a piston body 26 is moved to a rear side, an O-ring 38 is moved to a rear side by a front plate 32 of the piston body 26. A suction hole 24 of a cy...
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JP7280276B2 |
A positive displacement pump, including at least a cylinder, provided with at least an entrance aperture and at least an exit aperture for the liquid and a plunger, mobile inside the cylinder by means of a first actuator and configured t...
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JP2023047669A |
To provide a syringe pump that can clean a cylinder without being limited by the position of an extruding piston.A cleaning liquid supply port Pt (su) and a cleaning liquid discharge port Pt (ex) are formed at positions in a peripheral s...
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JP7249069B1 |
A liquid supply device is provided that prevents air from entering the interior when liquid is introduced into the interior, thereby reducing waste of the liquid. A liquid supply device (10) includes a pump main body (11) having a pump c...
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JP2023006146A |
To provide a stationary washing pump capable of preventing a valve from twisting and falling when the valve is in operation.A stationary washing pump 1 includes: a first housing 10 connected to a tank that stores liquid and/or compositio...
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JP2022190932A |
To provide a reciprocating pump that allows an amount of wear of a wear ring to be evaluated more easily and accurately, and a wear detection method for the reciprocating pump.A reciprocating pump comprises a piston body having a cylindr...
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JP7193664B2 |
Disclosed is a liquid pumping device, comprising a first component (21), a second component (22) and a third component (8), wherein the second component moves relative to the first component in a fixed manner; a medium inlet (12) and a m...
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JP7183088B2 |
According to one embodiment, a pump includes a first chamber configured to store a first fluid. The pump includes a second chamber configured to store a second fluid, the second chamber being positioned on a side of the first chamber. Vo...
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JP2022161316A |
To provide a piston pump facilitating downsizing.A pump is equipped with a cylinder, a cam member, a convex surface portion, a piston base portion, a cam energizing member, and a piston. The cylinder has a pump chamber that is blocked at...
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JP2022161631A |
To suppress an amount of a liquid discharged by air bleeding operation.A liquid discharge device includes a pump 5 for transferring a liquid L between a tank 3 for storing the liquid L and a nozzle 4, pump operation parts 21 and 31 for c...
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JP7155487B2 |
In a displacement metering pump, comprising a cylinder housing, which has a product inlet and a product outlet and in which a sealed displacement piston can be moved back and forth, the cylinder housing, with a piston rod seal fixedly in...
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JP2022542893A |
A rotary pump (4000) for a fluid metering system is provided. The rotary pump reciprocates and is reversed by a signal from a limit switch (4506) biased by an actuator arm (4508) on the rotary sleeve (4500) of the pump system. Rotary pum...
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JP2022542402A |
The present invention relates to an angle adjustment mechanism for pumps and motors, comprising a base and a linear actuator. The base has an upper portion attached to the motor, a lower portion attached to the pump, and a hinge for pivo...
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JP2022139673A |
To provide a grease supply device capable of supplying a small amount of grease required for lubrication as needed, and capable of restraining scattering of the grease as much as possible.A grease supply device 100 of the present inventi...
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JP2022131907A |
To arbitrarily intermittently rotate an impeller.A speed governor comprises: a rotation shaft part 61 that rotates around a rotation axis C2 based on power transmitted from the outside, and rotates at a rotation speed corresponding to th...
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JP2022131906A |
To appropriately change a rotation speed of a rotation shaft part to adjust the speed to an arbitrary rotation speed, without being affected by, for example, intensity of power to be transmitted.A speed governor 63 comprises: a rotation ...
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JP2022108165A |
To provide a flow rate adjustment mechanism suitable for transferring liquid by a necessary quantity, and having both safety and operability, a quantitative pump and a liquid charging system.A flow rate adjustment mechanism of a quantita...
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JP2022533075A |
To provide a method for assembling a fluid discharge pump which discharges a fluid at a higher pressure than before. A piston (1) fixed to an operating rod (2), a pump body (3) having a pump chamber (5), and an outlet valve component tha...
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