公开(公告)号：US12078157B2

公开(公告)日：2024-09-03

申请号：US17562214

申请日：2021-12-27

申请人： Hamilton Sundstrand Corporation

发明人： Weishun Willaim Ni ,  Edward W. Goy ,  Benjamin T. Harder ,  Mark W. Shoemaker

IPC分类号： F04B1/328 ,  F02C9/30 ,  F04B49/06 ,  F04B13/00

CPC分类号： F04B1/328 ,  F02C9/30 ,  F04B49/06 ,  F04B13/00 ,  F04B2201/12051 ,  F04B2205/02 ,  F04B2205/05

摘要： A variable displacement piston pump, having: a housing, a pivot assembly to pivot between minimal and maximum pivot angles; a pump cover defining an actuator bore with an actuator piston, an actuator arm extending from the actuator piston to the pivot assembly; and an electronic control unit (ECU) coupled to the pump, the ECU having: a pump controller, a linear variable differential transducer (LVDT) coupled to the pump controller and the actuator piston, and an electrohydraulic solenoid valve (EHSV) coupled to the pump controller, the ECU is configured to: determine a pivot differential for the pivot assembly between a target pivot angle and a current pivot angle; determine a position differential for the actuator piston, corresponding to the pivot differential of the pivot assembly; control the EHSV to move the actuator piston by the position differential; and determine, from the LVDT, that the actuator piston moved by the position differential.

公开(公告)号：US12044179B2

公开(公告)日：2024-07-23

申请号：US17176372

申请日：2021-02-16

申请人： IHI Corporation

发明人： Seiei Masuda

IPC分类号： F04B13/00 ,  F02C7/236 ,  F04B23/14 ,  F04B53/10

CPC分类号： F02C7/236 ,  F04B13/00 ,  F04B23/14 ,  F04B53/10

摘要： A fluid supply system includes: a centrifugal pump; a starting pump that is connected to the centrifugal pump in series, is provided downstream of the centrifugal pump, and has a discharge flow rate less than that of the centrifugal pump; a measuring valve that is provided downstream of the centrifugal pump and the starting pump, measures an amount of fluid discharged from the centrifugal pump or the starting pump, and discharges the fluid to a downstream each time the fluid reaches a predetermined flow amount; a differential pressure valve that is provided downstream of the centrifugal pump and the starting pump, and is driven based on a differential pressure between an upstream pressure and a downstream pressure of the measuring valve; and a flow rate control valve that is provided downstream of the centrifugal pump and upstream of the differential pressure valve and has a valve opening speed that is set slower than that of the differential pressure valve.

公开(公告)号：US12006927B2

公开(公告)日：2024-06-11

申请号：US17829219

申请日：2022-05-31

申请人： World Club Supply Corporation

发明人： Philip D. Lowance

IPC分类号： F04B17/04 ,  A47K5/12 ,  A47K5/16 ,  B05B11/10 ,  F04B13/00 ,  F04B23/02 ,  F04B49/10 ,  F04B53/10

CPC分类号： F04B17/046 ,  A47K5/1204 ,  A47K5/1205 ,  A47K5/1207 ,  A47K5/1217 ,  A47K5/16 ,  B05B11/1001 ,  B05B11/1015 ,  B05B11/1046 ,  B05B11/1047 ,  F04B13/00 ,  F04B17/04 ,  F04B17/042 ,  F04B23/028 ,  F04B49/10 ,  F04B53/1002 ,  A47K2005/1218 ,  F04B2207/70

摘要： Automatic electric actuation of the pumping mechanism of a liquid dispenser apparatus is provided by configuring a hollow tube to cooperate with an electromagnetically driven actuator and further configuring the hollow tube to inter-fit with a stem of a liquid dispensing pump. Actuation of the actuator may, for example, drive the pump stem downwardly to cause a pumping action. Suitable actuators include, for example, solenoids, voice coil actuators and stepping motors.

公开(公告)号：US20240158219A1

公开(公告)日：2024-05-16

申请号：US18284427

申请日：2022-04-07

申请人： FLUID METERING, INC.

发明人： Richard Hill ,  Nicolas Mercier

IPC分类号： B67D7/08 ,  B05B1/02 ,  B05B1/08 ,  B67D7/30 ,  F04B13/00 ,  F04B17/03 ,  F04B49/20

CPC分类号： B67D7/08 ,  B05B1/02 ,  B05B1/08 ,  B67D7/30 ,  F04B13/00 ,  F04B17/03 ,  F04B49/20

摘要： A system and method for dispensing fluid including a pump having a stepper motor operably connected to a pump head. The pump head has an inlet and an outlet. The inlet is adapted to be in fluid communication to a fluid reservoir. A controller is operably connected to the motor. The controller drives the motor wherein a speed and an acceleration of the stepper motor is selected to overcome adhesion between the dispense tip and the dispensed fluid. A dispense tip formed of a hydrophobic material is in fluid communication with the outlet of the pump head.

公开(公告)号：US11976953B2

公开(公告)日：2024-05-07

申请号：US17371583

申请日：2021-07-09

申请人： OP-Hygiene IP GmbH

发明人： Heiner Ophardt ,  Andrew Jones ,  John Garry

IPC分类号： A47K5/12 ,  F04B13/00 ,  F04B17/00 ,  G01F11/02

CPC分类号： G01F11/023 ,  A47K5/12 ,  F04B13/00 ,  F04B17/00

摘要： A fluid dispenser having a pump mechanism that dispenses a dose of fluid when a movable pump member of the pump mechanism is moved between an extended position and a retracted position. A pump engagement body engages with the movable pump member for effecting movement of the movable pump member. A first cam surface and a second cam surface are connected to the pump engagement body, at least one of the first cam surface and the second cam surface comprising an adjustable cam surface whose location relative to the pump engagement body is selectively adjustable. A camming body engages with the first cam surface and the second cam surface to effect movement of the pump engagement body, and a dose adjustment mechanism allows the location of the adjustable cam surface relative to the pump engagement body to be selected.

公开(公告)号：US11905191B1

公开(公告)日：2024-02-20

申请号：US17577295

申请日：2022-01-17

申请人： AquaStar Pool Products, Inc.

发明人： Olaf Mjelde

IPC分类号： C02F1/78 ,  A61L2/20 ,  A61L2/26 ,  C01B13/11 ,  F04B13/00 ,  F04B7/02 ,  C02F1/00 ,  B01F23/232 ,  B01F25/312 ,  C02F103/42 ,  A61L101/02 ,  B01F23/237 ,  B01F101/00

CPC分类号： C02F1/78 ,  A61L2/202 ,  A61L2/26 ,  B01F23/232 ,  B01F25/312 ,  C01B13/115 ,  C02F1/001 ,  F04B7/0266 ,  F04B13/00 ,  A61L2101/02 ,  A61L2202/11 ,  B01F23/237613 ,  B01F2101/305 ,  C01B2201/14 ,  C01B2201/62 ,  C02F2103/42 ,  C02F2201/005 ,  C02F2201/782 ,  C02F2303/04

摘要： An ozone injector device comprising a housing, a corona tube disposed within the housing and configured to generate ozone, a check-valve having a first end removably coupled to the water passageway and a second end configured to receive ozone, the second end having a cavity with a movable float contained therein, an ozone inlet fitting removably coupled to the second end of the check-valve, the ozone inlet being in fluid communication with the corona tube via a corona discharge tube such that ozone entering the water passageway through the ozone inlet must pass through the check valve, and a spring-loaded clearing piston positioned to move into and out of the water passageway directly opposite the ozone inlet, the clearing piston being biased upwards, and configured to prevent flow of ozone into the water passageway.

公开(公告)号：US20240009383A1

公开(公告)日：2024-01-11

申请号：US17860506

申请日：2022-07-08

申请人： Becton, Dickinson and Company

发明人： David James Coleman ,  Steve Beguin ,  Elaine Huggard ,  Katie Fisher

IPC分类号： F04B13/00 ,  F04B49/06

CPC分类号： F04B13/00 ,  F04B49/065 ,  F04B7/06

摘要： A metering pump for a medical injector includes a housing, a sleeve at least partially received within the housing, a piston at least partially received within the sleeve, and an interlock. The piston has a first position where the chamber has a first volume and a second position where the chamber has a second volume, with the first volume larger than the second volume. The sleeve has a first rotational position where an inlet is in fluid communication with the chamber, a second rotational position where an outlet is in fluid communication with the chamber, and a third rotational position where the inlet and outlet are isolated from the chamber. The interlock includes an elastomeric member and a protrusion, where engagement between the elastomeric member and the protrusion is configured to restrict movement of the sleeve until the sleeve overcomes a predetermined torque value.

公开(公告)号：US20240003342A1

公开(公告)日：2024-01-04

申请号：US18251948

申请日：2021-11-15

申请人： MICRO ELECTROCHEMICAL TECHNOLOGIES S.L.

发明人： Alberto Emanuel QUINTERO GAMEZ ,  Alberto Bernaldo DE QUIRÓS SANZ ,  Beatriz ORAÁ POBLETE

IPC分类号： F04B43/04 ,  F04B7/02 ,  F04B13/00 ,  F04B19/00 ,  F04B23/04 ,  F04B49/06

CPC分类号： F04B43/046 ,  F04B7/02 ,  F04B13/00 ,  F04B19/006 ,  F04B23/04 ,  F04B49/06

摘要： A microfluidic flow rate control device for controlling a flow rate of a fluid flowing through a microfluidic conduit includes an inlet terminal for fluid input and an outlet terminal for fluid output, and a microfluidic conduit communicating the inlet terminal with the outlet terminal. The control device also includes; pumps for pumping the fluid through the conduit at a particular flow rate, valves for adjusting the flow rate of the fluid modifying their passageways, and a flow sensor for measuring the flow rate within the conduit and a controller for receiving the measured flow rate, comparing it with a predefined flow rate and instructing the pumps and/or the valves to modify their pumping powers and passageways of the valves, respectively, based on the result of the comparison. The microfluidic conduit, the pumps, the flow sensor and the valves may be arranged inside the protective housing.

公开(公告)号：US11644019B2

公开(公告)日：2023-05-09

申请号：US16541092

申请日：2019-08-14

申请人： Clay L. Hammond

发明人： Clay L. Hammond

IPC分类号： G01F1/00 ,  F04B23/02 ,  F16L25/06 ,  F16L41/08 ,  F04B51/00 ,  F04B49/02 ,  F04B13/00 ,  G01F25/00

CPC分类号： F04B13/00 ,  F04B23/02 ,  F04B49/02 ,  F04B51/00 ,  F16L25/06 ,  F16L41/08 ,  G01F1/007 ,  G01F25/0092

摘要： A chemical delivery system connects to a chemical tank and includes a union connected to the tank outlet and providing an antirotation feature, in addition to threads, to prevent rotation of the assembly in response to asymmetric loads. A measuring tube alternately receives liquid from the tank and is isolated from the tank. While isolated from the tank, liquid is withdrawn from the tube by a pump under conditions allowing the pump to be calibrated. The assembly is cantilevered from the tank outlet and is of reduced length and weight producing a device which is not prone to overstress the tank outlet.

公开(公告)号：US20180252208A1

公开(公告)日：2018-09-06

申请号：US15911865

申请日：2018-03-05

申请人： BIO-TEK INSTRUMENTS, INC.

发明人： Christopher MANY ,  Brad LARSON ,  Byron SMITH ,  Brian STRUHAMMER

IPC分类号： F04B43/12 ,  B05B1/14 ,  B08B3/02 ,  B08B11/02 ,  G01N35/10

CPC分类号： F04B43/1253 ,  B01L3/5085 ,  B01L9/523 ,  B01L13/02 ,  B01L2300/0829 ,  B05B1/14 ,  B08B3/02 ,  B08B11/02 ,  F04B13/00 ,  F04B23/06 ,  G01N35/1002 ,  G01N35/1004 ,  G01N35/1009 ,  G01N2035/0437 ,  G01N2035/1023

摘要： An autoclaving microplate washing system for cells and non-adhering three-dimensional (3D) cell cultures includes one or more peristaltic pumps for controlling the dispensing of washing fluid and the evacuation of fluid from microwells, and means for independently controlling the relative positions between microwells of the microplate and cleaning dispense pipes and evacuation aspiration pipes.