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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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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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JP7026359B2 |
To provide an ink dispenser that is able to accurately perform color matching with an inexpensive and simple structure.Each of a plurality of discharge units 40 arranged above a table 20 for each color is provided with: a plurality of in...
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JP2022018059A |
To provide a dispenser effective in both reducing the size and accelerating the dispensing.A dispenser 1 comprises: a plunger 100; a guide block 200 which guides the plunger 100 so that the plunger advances/retreats along an axial line L...
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JP7007305B2 |
A method of operating a pump can include advancing a stepper motor one or more additional steps in a first direction after detecting a first change in a limit sensor state corresponding to a piston reaching an end of its travel in a firs...
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JP2022502591A |
Two pistons driven by a cam belonging to an external rotor that draw liquid into the pump chamber during the piston filling stroke and then draw liquid from the pump chamber during the piston discharge stroke, at least one outlet. Outflo...
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JP6976683B2 |
A mini lead screw pump (2) monitors the rotation of a lead screw (22) by using a magnetoresistive sensor (28) and an MCU (50), and uses feedback to control the rotation direction and speed of the lead screw (22) through a motor controlle...
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JP6967818B2 |
A liquid injection apparatus (1) includes: a first measuring unit (10a) including a first measuring space (13a) inside a first cylinder (11a) and a first piston (12a) moving in the first measuring space (13a); a second measuring unit (10...
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JP6952636B2 |
A non-pulsating pump comprises a plurality of reciprocating pumps, each of them having: a hydraulic chamber (22,42) into which a portion of a reciprocating plunger (26,46) is inserted, and a fluid chamber (25,45) separated from the hydra...
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JP6946333B2 |
A proportional metering pump includes a hydraulic machine, a metering mechanism provided with a nozzle, and a unit for attaching the nozzle to the pipe for access to the cavity inside the hydraulic machine, including a securing ring moun...
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JP6921855B2 |
A metering mechanism includes a body mounted in a sleeve covering the top and an adjustment nut covering the bottom, the adjustment nut threaded to the sleeve, the screw connection then causing rotation of the adjustment nut with respect...
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JP2021105361A |
To provide a container which can discharge foam having an excellent quality such as persistence and appearance of the foam quality.In a foam discharging container, a cap is attached to an opening of a container containing foamable liquid...
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JP6908316B1 |
To provide a dispenser effective for achieving both miniaturization and high speed of dispense. A dispenser 1 includes a plunger 100, a guide block 200 that guides the plunger 100 so as to move forward / backward along an axis L1, and a ...
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JP6903678B2 |
A microfluidic mixing device comprising two bellows pumps (105, 115), microfluidic cartridges comprising the same and methods for use of the same are provided. The disclosed device enables efficient mixing of samples at the microfluidic ...
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JP6899132B2 |
To provide a syringe pump device capable of continuously sending the flow of a fluid at a fixed rate regardless of high pressure or low pressure.A syringe pump device comprises: check valves 2a, 2b provided corresponding to a fluid pipe ...
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JP6892017B2 |
A fluid supply system (1) includes: a centrifugal pump (2); a starting pump (4) that is connected to the centrifugal pump (2) in series, is provided downstream of the centrifugal pump (2), and has a discharge flow rate less than that of ...
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JP6882276B2 |
A hydraulic machine includes: a casing; a differential piston having an upper ring and a lower base, sliding reciprocally in the casing and a cylindrical housing inside the envelope, separating two chambers of the casing; a hydraulic swi...
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JP6830522B2 |
A spray system includes a fluid source, a sprayer, a pump cylinder, a plunger, a pump motor, first and second inlet and outlet valves, a plurality of valve seals, a seal lubricant reservoir, and gravity fed seal lubricant lines. The pump...
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JP6824997B2 |
The invention provides a pump for dispensing a plurality of fluids at predetermined volumes to a common location and a method of using the pump to deliver such plurality of fluids. The pump comprises one or more first syringe units, each...
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JP2021008886A |
To provide a high-pressure pump, in particular, a pump for pumping a concentrated, highly viscous material such as mastic.A positive displacement pump for pumping a fluid mastic comprises a plurality of cylinders, each of which has a pis...
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JP6809616B2 |
A plunger pump includes, independently of a pump head, a pressure detection apparatus independently having a sensor part for detecting a fluid pressure, and the pump head and the pressure detection apparatus are detachably mounted with a...
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JP6797451B1 |
To provide a dispenser effective for increasing the speed of dispensing. A dispenser 1 includes a plunger 100, a guide block 200 that guides the plunger 100 so as to move forward / backward along an axis L1, and a dispenser that discharg...
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JP6793990B1 |
To provide a dispenser effective for achieving both miniaturization and high speed of dispense. A dispenser 1 includes a plunger 100, a guide block 200 that guides the plunger 100 so as to move forward / backward along an axis L1, and a ...
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JP6794427B2 |
Disclosed is a monitored proportional metering device including a liquid metering pump having an inlet, an outlet, a suction nozzle, and a mechanism for adjusting the flow in the nozzle. The metering device is also includes a detection a...
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JP6780780B2 |
A liquid feeding device includes a primary plunger pump; a secondary plunger pump connected downstream; a check valve provided between the primary plunger pump and the secondary plunger pump; a primary pressure sensor that detects a pres...
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JP6761833B2 |
To provide a technique capable of accurately monitoring a small amount of discharge amount, in a device that performs discharge with an air cylinder operating at constant pressure.A discharge amount controller employs a configuration hav...
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JP2020528119A |
To provide a liquid pumping device capable of quantifying a liquid by a concave groove and preferably controlling an output accuracy. A liquid pumping device includes a first part (21), a second part (22) and a third part (8), and the se...
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JP6660926B2 |
To prevent liquid discharge from being made unstable by containing air bubbles in a liquid that fills a filling chamber in a syringe pump.In a syringe pump, a liquid T filling a filling chamber 10 between one-side bottom wall 7 of a cyli...
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JP2020505592A |
The present disclosure generally relates to methods and devices for providing a pressurized solvent stream in a chromatography system. In one embodiment, at least one conversion valve is in fluid communication with at least one solvent s...
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JP6644712B2 |
Backlash in a precision system such as a pumping system can be reduced or eliminated with an anti-backlash device that has a first nut coupled to and fixed in relation to a piston. The first nut and a second nut may engage with a lead sc...
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JP6570846B2 |
[Problems] To provide a driving method for a metering pump, a driving apparatus for a metering pump, a vaporizer and an anesthesia apparatus which are capable of suppressing a pulsation in the metering pump, and lowering the costs and re...
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JP6563913B2 |
A diaphragm pump having a body including a suction connection and a discharge connection, a suction valve and a discharge valve; a control chamber in which the diaphragm is disposed, and a working chamber located on the side of the diaph...
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JP6543648B2 |
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JP6543646B2 |
Backlash in a precision system such as a pumping system can be reduced or eliminated with an anti-backlash device that has a first nut coupled to and fixed in relation to a piston. The first nut and a second nut may engage with a lead sc...
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JP6509703B2 |
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JP6486387B2 |
A device (1) for monitoring the operation of a dosage dispenser (2) which includes a suction pipe (5) suitable for being plunged into the liquid additive (3) contained in a container (6), the monitoring device including elements for dete...
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JP6443564B2 |
A liquid feeding apparatus includes: a plurality of plunger pumps fluidly connected in series or in parallel between a suction flow path and a discharge flow path; and a control unit configured to control an operation of the plunger pump...
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JP6439881B2 |
A liquid feeding apparatus has a primary side pump and a secondary side pump, and an outlet part of the primary side pump and an inlet part of the secondary side pump are connected to each other via a check valve. A temporary side pump p...
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JP6422114B2 |
To provide a cylinder capable of properly cleaning a part on which cleaning may be insufficient, such as a part of an O-ring disposed between a piston head and a cylinder body, and a corner (angular portion) positioned at an outer side o...
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JP6396274B2 |
This liquid supply device 10a has a first liquid flow path 21 and a second liquid flow path 22 that connect a suction port 13 and a discharge port 14. The first liquid flow path 21 is provided with a first pump 25 and the second liquid f...
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JP6392481B1 |
To provide a plunger pump and a fixed quantity discharge device which perform fixed quantity discharge with high accuracy. A plunger pump 20 includes a pump main body 24 having a pump chamber 25 formed therein and a plunger that moves fo...
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JP6368608B2 |
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JP2018099654A |
To provide a liquid supply system using a syringe pump, in which a liquid filling amount is accurate, and which avoids overflow of an ejection amount of a liquid ejected from an ejection unit at an initial operation.A liquid supply syste...
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JP6339072B2 |
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JP6334683B2 |
The invention is a fluid dispensing device suited to be connected, by means of a connection element (220), to a container (C) holding the fluid that can be dispensed from the inside to the outside of the container through an actuator ele...
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JP6313827B2 |
This non-pulsating pump (100) has a rotary cam (15) which converts a rotary motion of a servomotor (11) into a reciprocating motion and through which first and second pumps (20, 40) are driven with a phase difference of 180°, and includ...
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JP6311892B2 |
A foam pump including a housing and a piston that reciprocates within the housing is disclosed herein. The piston has a hollow portion and an orifice through the wall of the piston. A first seal located proximate the upper end of the pis...
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JP6305480B2 |
A non-pulsation pump (100) is provided with: a cam mechanism (16) that converts the rotational motion of a shared motor (11) into reciprocal motion having a prescribed phase difference; a plurality of cross heads (28, 48) that make recip...
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JP2018505992A |
A positive displacement pump for pumping a fluid mastic comprises a plurality of cylinders, each having pistons arranged to reciprocate within the cylinder. The piston moves in the first direction to pull the fluid into the cylinder and ...
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JP2018503503A |
The two-component feeding system consists of a first pump that feeds the first component, a second pump that feeds the second component, a motor, and the motor is connected to the first and second pumps to form the first pump. It also ha...
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