公开(公告)号：US12127897B2

公开(公告)日：2024-10-29

申请号：US17197844

申请日：2021-03-10

申请人： Nicefeel Medical Device Technology Co., Ltd.

发明人： Qing Zhang ,  Xiaowen Liu ,  Jinfeng Li ,  Xinquan Liu ,  Gang Zhou ,  Gang Wang

IPC分类号： A61C17/02 ,  A61C1/00 ,  F04B19/04 ,  F04B53/14

CPC分类号： A61C1/0092 ,  A61C17/0202 ,  F04B19/04 ,  F04B53/147

摘要： The present disclosure relates to a water pumping device for a water flosser, which includes a mounting base, a transmission assembly, a connecting member, and a piston. The transmission assembly includes a first transmission member. The connecting member is disposed in the mounting base in a reciprocally movable manner in a first direction. The first transmission member is rotatable about a first rotation axis perpendicular to the first direction, and in mating connection with the connecting member. The first transmission member is eccentrically disposed with respect to the first rotation axis. During a rotation of the first transmission member about the first rotation axis, the first transmission member reciprocates in the first direction, so as to drive the connecting member to reciprocate in the first direction. The reciprocation of the connecting member in the first direction can drive the piston to reciprocate in the first direction.

公开(公告)号：US20240328510A1

公开(公告)日：2024-10-03

申请号：US18604404

申请日：2024-03-13

申请人： KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)

发明人： Hirotaka ITO ,  Yuya MURATA ,  Takumi KITAYAMA ,  Naofumi KANEI

IPC分类号： F16J9/12 ,  F04B53/14

CPC分类号： F16J9/12 ,  F04B53/143

摘要： A piston ring is a piston ring for use in an oil-free-type reciprocating compressor for compressing hydrogen gas, the piston ring containing thermoplastic polyimide as a main component and carbon fiber and/or graphite as an additive, and having a tensile strength of 90 MPa or more and a bending strength of 150 MPa or more.

公开(公告)号：US12098713B2

公开(公告)日：2024-09-24

申请号：US17349529

申请日：2021-06-16

申请人： ZHEJIANG Z&Z INDUSTRIAL CO., LTD.

发明人： Jianyi Huang

IPC分类号： F04B37/14 ,  B05B11/10 ,  F04B53/14 ,  F04B53/16

CPC分类号： F04B37/14 ,  B05B11/1069 ,  F04B53/14 ,  F04B53/162 ,  B05B11/1023 ,  B05B11/1077

摘要： A vacuum pump including: a pump body that includes an elastic sleeve; a valve stem; a valve pin that is surrounded by the valve stem with an end of the valve pin snap fitted to the valve stem; a piston that surrounds the valve pin and that is located inside of the pump body and sealed against the pump body; a plug; a ring that surrounds the pump body and the plug; a head cap that surrounds the valve stem and that is configured to move within a cavity of the ring; and a spring disposed between the valve stem and the stepped groove of the plug at a position radially outward of the valve stem.

公开(公告)号：US12098711B2

公开(公告)日：2024-09-24

申请号：US17048132

申请日：2019-04-18

申请人： sera GmbH

发明人： Stephan Hillebrand ,  Patrick Zeisberg ,  Nils Friedrich

IPC分类号： F04B9/111 ,  F04B1/124 ,  F04B9/117 ,  F04B53/14 ,  F04B53/16

CPC分类号： F04B1/124 ,  F04B9/111 ,  F04B9/1178 ,  F04B53/14 ,  F04B53/162

摘要： A compressor device for compressing a gas in at least one compression chamber in at least one compression cylinder is disclosed. In each of at least two drive cylinders, at least one drive piston is disposed, said at least one drive piston dividing each of the at least two drive cylinders into two drive chambers. The at least one first and second drive chamber, by way of a hydraulic fluid, are able to be periodically impinged with a fluid pressure in order for the respective drive piston to be moved. Each of the remaining drive chambers in the at least two drive cylinders, by way of a connection piece, are connected in a non-positive locking manner by a fluid. The movement of the drive pistons by way of at least one mechanical connection means is able to be transmitted to at least one compression piston.

公开(公告)号：US12060875B2

公开(公告)日：2024-08-13

申请号：US17522896

申请日：2021-11-09

申请人： PDC MACHINES INC.

发明人： Guy Babbitt ,  Chris Turner ,  Bryce Whitehill ,  Michael Sprengel ,  Noah Schaich ,  Kyle Palmiscno ,  Alex Beckerman ,  Kareem Afzal ,  Carl T. Johnson

IPC分类号： F04B45/053 ,  F04B39/02 ,  F04B39/06 ,  F04B39/16 ,  F04B43/073 ,  F04B45/04 ,  F04B49/22 ,  F04B53/06 ,  F04B53/14 ,  F04B53/08

CPC分类号： F04B45/053 ,  F04B39/02 ,  F04B39/06 ,  F04B39/16 ,  F04B43/073 ,  F04B45/043 ,  F04B45/0533 ,  F04B45/0536 ,  F04B49/22 ,  F04B53/06 ,  F04B53/14 ,  F04B53/08 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2205/05

摘要： Devices and methods for operating a diaphragm compressor. Embodiments of the present disclosure comprise an oil piston being driven to pressurize work oil against the diaphragm of the compressor. In embodiments, an injection pump provides a supplemental flow of work oil in the region of pressurized fluid, and such pump may be part of an actively controlled system. In embodiments, a pressure relief valve vents an overpump flow of work oil, and such valve may be variable. Embodiments provide feedback and control mechanisms, including control of the injection pump and the relief valve.

公开(公告)号：US20240263625A1

公开(公告)日：2024-08-08

申请号：US18422538

申请日：2024-01-25

申请人： Attollo Engineering, LLC

发明人： Andreas Fiedler

IPC分类号： F04B17/03 ,  F04B53/14 ,  F04B53/16 ,  F16C17/04 ,  F25B31/02 ,  H02K33/18

CPC分类号： F04B17/03 ,  F04B53/14 ,  F04B53/16 ,  F16C17/04 ,  F25B31/023 ,  H02K33/18 ,  F04B2203/04 ,  F16C2360/42

摘要： A linear motor includes a piston cylinder having a first diameter and extending along a first cylindrical axis. The piston cylinder includes a first side wall. A piston is disposed within the piston cylinder and the piston is movable along the first cylindrical axis within the piston cylinder. The linear motor includes a bearing cylinder having a second diameter and extending along a second cylindrical axis. The bearing cylinder includes a second side wall. A bearing is disposed within the bearing cylinder, and the bearing is movable along the second cylindrical axis within the piston cylinder. A linkage mechanically couples the piston to the bearing. A motor stator generates an electromagnetic field. A ferromagnetic feature interacts with the electromagnetic field generated by the motor stator to impart linear force on the piston. The second diameter is greater than the first diameter.

公开(公告)号：US12055135B2

公开(公告)日：2024-08-06

申请号：US17983389

申请日：2022-11-08

申请人： PDC MACHINES, INC.

发明人： Chris Turner ,  Guy Babbitt ,  Alex Beckerman ,  Bryce Whitehill ,  Garrett Casassa

IPC分类号： F04B45/053 ,  F04B43/073 ,  F04B45/04 ,  F04B49/22 ,  F04B53/06 ,  F04B53/14

CPC分类号： F04B45/0533 ,  F04B43/073 ,  F04B45/043 ,  F04B45/053 ,  F04B45/0536 ,  F04B49/22 ,  F04B53/06 ,  F04B53/14 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2205/05

摘要： Devices and methods for operating a diaphragm compressor system provide high output pressure and high throughput. In some force coupled embodiments, pressures on an actuator piston are balanced by high-pressure recovery or medium-pressure shuffling arrangements. In some embodiments, modular diaphragm compressors are stacked with a clamping mechanism pressing the compressor modules together. In embodiments, multiple stacks are provided as stages of a pressurization process. In embodiments, a main stage valve controls one or more pressure circuits for one or more hydraulic actuators of compressor modules. In embodiments, orifices configured for damping are incorporated to control actuator piston movement within a compressor module.

公开(公告)号：US20240247647A1

公开(公告)日：2024-07-25

申请号：US18158074

申请日：2023-01-23

申请人： DANA ITALIA S.R.L.

发明人： Michelangelo MARINI ,  Matteo DALLAPICCOLA ,  Pier Paolo RINALDI

IPC分类号： F04B9/04 ,  F04B53/14 ,  F04B53/16

CPC分类号： F04B9/042 ,  F04B53/14 ,  F04B53/162 ,  F16H57/0436

摘要： Methods and systems for a mechanically driven pump are provided. The mechanically driven pump may apply a piston simultaneously to operate as a guillotine blocking valve and a component to transfer motive force. A spring may apply a force to the piston to oppose a force that is applied to the piston via a cam lobe. The mechanically driven pump exhibits a differential pressure at a calibrated orifice during two working phases of the pump (expansion and compression), which provides for a non-zero volumetric efficiency of the mechanically driven pump.

公开(公告)号：US12042627B2

公开(公告)日：2024-07-23

申请号：US17478530

申请日：2021-09-17

申请人： Tandem Diabetes Care, Inc.

发明人： Paul M. DiPerna ,  Michael J. Rosinko ,  Geoffrey A. Kruse ,  Thomas R. Ulrich ,  Christopher Dabrow ,  Mark Williamson ,  Brian Bureson ,  Kathryn Rieger

IPC分类号： A61M5/172 ,  A61M5/14 ,  A61M5/142 ,  A61M5/315 ,  F04B43/113 ,  F04B53/14 ,  F16J15/32 ,  F16J15/56 ,  G16H40/63 ,  A61M5/168 ,  G06F3/0488

CPC分类号： A61M5/172 ,  A61M5/1413 ,  A61M5/14244 ,  A61M5/14248 ,  A61M5/1723 ,  A61M5/31513 ,  F04B43/113 ,  F04B53/143 ,  F16J15/32 ,  F16J15/56 ,  G16H40/63 ,  A61M2005/14268 ,  A61M5/16804 ,  A61M2205/3389 ,  A61M2205/50 ,  A61M2205/505 ,  A61M2205/52 ,  A61M2230/201 ,  A61M2230/63 ,  G06F3/0488

摘要： Embodiments are directed to portable infusion devices, systems, and methods of using the same for dispensing materials. In some cases, the devices, systems and methods may be used for infusing a material such as medicament, e.g., insulin, into a body in need thereof.

公开(公告)号：US20240240714A1

公开(公告)日：2024-07-18

申请号：US18155680

申请日：2023-01-17

申请人： Hamilton Sundstrand Corporation

发明人： Jecee Jarman ,  Zachary Allen Ray Le Duc ,  John E. Holowczak

IPC分类号： F16J9/26 ,  F04B1/2035 ,  F04B53/14 ,  F16J9/12

CPC分类号： F16J9/26 ,  F04B1/2035 ,  F04B53/14 ,  F16J9/12

摘要： In accordance with at least one aspect of this disclosure, a pump system for an aircraft includes, a cylinder barrel configured to rotate within a pump housing of a pump, and a plurality of pistons seated within a respective bore defined in the cylinder barrel. Each piston further includes a piston ring disposed at an end thereof configured to form a hydrodynamic seal with an inner surface of the respective bore. Each respective piston ring is of silicon nitride. In embodiments, the piston ring can include a chamfer on at least a leading edge of the piston ring. In embodiments, the piston ring can include a cut therethrough configured to allow for thermal expansion of the piston ring.