公开(公告)号：US20250067255A1

公开(公告)日：2025-02-27

申请号：US18454596

申请日：2023-08-23

Applicant: Caterpillar Inc.

Inventor： Ron L. SALE ,  Curtis J. GRAHAM ,  Luis A. VAZQUEZ

IPC: F04B1/2035 ,  B23P6/02

Abstract: A cylinder block for a fluid pump includes a cylindrical body having a hub bore and a plurality of cylinder bores arranged about the hub bore, a hub insert disposed in the hub bore, and an anti-rotation body configured to prevent rotation of the hub insert relative to the cylindrical body. The cylindrical body and the hub insert together define a channel in which the anti-rotation body is inserted.

公开(公告)号：US20250067155A1

公开(公告)日：2025-02-27

申请号：US18810019

申请日：2024-08-20

Applicant: FORUM US, INC.

Inventor： Joel Hugo GUTIERREZ, III ,  Jason SMITH ,  Jared Michael OEHRING

IPC: E21B43/26 ,  F04B23/06

Abstract: A new and improved long stroke pump system used for wellbore hydraulic fracturing operations. The pump system comprises a power system, a drive system, and a frac fluid pumping assembly. The frac fluid pumping assembly comprises one or more pairs of hydraulic cylinders that are mechanically decoupled from each other but are hydraulically coupled to each other.

公开(公告)号：US20250066194A1

公开(公告)日：2025-02-27

申请号：US18814278

申请日：2024-08-23

Applicant: Ohmium International, Inc.

Inventor： Arne Ballantine ,  Tom Miller ,  Rasool Aghatehrani ,  Chockkalingam Karuppaiah

IPC: C01B3/56 ,  B01D53/04 ,  B01D53/26 ,  B01J20/34 ,  F04B35/04 ,  F04B37/18

Abstract: Systems and methods for regenerating dryers in processes for producing hydrogen are described. The systems and methods include regenerating the dryers either with hydrogen produced during the process or with an inert gas, such as nitrogen. The systems and methods increase utilization of hydrogen produced in the process and overall efficiency.

公开(公告)号：US20250066143A1

公开(公告)日：2025-02-27

申请号：US18724161

申请日：2023-02-03

Applicant: Weir Minerals Netherlands B.V.

Inventor： Johannes Stroeken ,  Frank Ummenthun

IPC: B65G53/52 ,  F04B53/16 ,  F04F13/00

Abstract: A distribution manifold for a pressure exchange chamber pumping system having a plurality of pressure exchange chambers arranged in parallel. The distribution manifold includes: a hollow manifold body defining a distribution chamber: an inlet leading into the body and connectable in flow communication with a medium supply: and a plurality of spaced apart outlets opening operatively upwardly out of the body. each outlet being connectable in flow communication with a medium inlet valve of a pressure exchange chamber.

公开(公告)号：US12234817B2

公开(公告)日：2025-02-25

申请号：US18302633

申请日：2023-04-18

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Ahmad Hamad Alharbi

IPC: F04B49/12 ,  F04B13/00

Abstract: A system includes a metering positive displacement pump including a body, a stroke adjustment shaft and a stroke adjustment knob, the stroke adjustment knob operable to translate axially with respect to the body to set a stroke length of the metering positive displacement pump. The system further includes a limiter having a hollow body with an axial slot defined across the hollow body, the limiter having a predetermined length corresponding to a minimum permissible stroke length of the metering positive displacement pump, wherein the limiter is installed over the stroke adjustment shaft of the metering positive displacement pump, and wherein axial translation of the stroke adjustment knob towards the body of the metering positive displacement pump is limited by the limiter to prevent setting the stroke length below the minimum permissible stroke length.

公开(公告)号：US20250060300A1

公开(公告)日：2025-02-20

申请号：US18938138

申请日：2024-11-05

Applicant: Beckman Coulter, Inc.

Inventor： Yong Qin CHEN

IPC: G01N15/1434 ,  F04B11/00 ,  G01N15/10 ,  G01N15/14 ,  G01N35/10 ,  G02B6/26 ,  G02B6/293 ,  G02B21/04 ,  G02B21/36 ,  G02B27/00

Abstract: The disclosed flow cytometer includes a wavelength division multiplexer (WDM). The WDM includes an extended light source providing light that forms an object, a collimating optical element that captures light from the extended light source and projects a magnified image of the object as a first light beam, and a first focusing optical element configured to focus the first light beam to a size smaller than the object of the extended light source to a first semiconductor detector. The disclosed flow cytometer further includes a composite microscope objective to direct light emitted by a particle in a flow channel in a viewing zone of the composite microscope to the extended light source, a fluidic system and a peristaltic pump configured to supply liquid sheath and liquid sample to the flow channel, and a laser diode system to illuminate the particle in the flow channel.

公开(公告)号：US12228127B2

公开(公告)日：2025-02-18

申请号：US18538373

申请日：2023-12-13

Applicant: Halliburton Energy Services, Inc.

Inventor： Justin Lee Hurst ,  David Mark Stribling

IPC: F04B7/02 ,  F04B53/10 ,  F04B53/12

Abstract: A pump fluid end having a reciprocating element a discharge valve assembly, a suction valve assembly, and a suction valve stop. The reciprocating element is disposed at least partially within a reciprocating element bore of the pump fluid end. The suction valve assembly is coupled with a front end of the reciprocating element. The suction valve stop is positioned within the reciprocating element bore such that the suction valve stop contacts and applies a closing force to the suction valve assembly when the suction valve assembly is stuck open at the end of a discharge stroke of the reciprocating element.

公开(公告)号：US12228118B2

公开(公告)日：2025-02-18

申请号：US17812900

申请日：2022-07-15

Applicant: Obotics Inc.

Inventor： Bruce Murison

IPC: F04B17/04 ,  A41B9/04 ,  A41C1/14 ,  A41C5/00 ,  A61H9/00 ,  A61H19/00 ,  A61H23/00 ,  A61H23/02 ,  A61H23/04 ,  F04B3/00 ,  F04B11/00 ,  F04B53/10 ,  F04B53/18

Abstract: A device for use by an individual for sexual pleasure varying in form, i.e. shape, during its use and allowing for the user to select multiple variations of form either discretely or in combination and for these dynamic variations to be controllable simultaneously and interchangeably while being transparent to the normal use of the device, including the ability to insert, withdraw, rotate, and actuate the variable features manually or remotely. According to embodiments of the invention localized and global variations of devices are implemented using fluidics and electromagnetic pumps/valves wherein a fluid is employed such that controlling the pressure of the fluid results in the movement of an element within the device or the expansion/contraction of an element within the device.

公开(公告)号：US20250052455A1

公开(公告)日：2025-02-13

申请号：US18796508

申请日：2024-08-07

Applicant: BITZER Kuehlmaschinenbau GmbH

Inventor： Axel Friedrich ,  Andreas Becker ,  Dirk Mannewitz

IPC: F25B31/02 ,  F04B15/08 ,  F04B53/00 ,  F04B53/16

Abstract: In order to make a refrigerant compressor unit as light and compact as possible so that it can be used as a transcritical CO2 compressor, it is proposed that the cylinder head is manufactured from a cast material comprising iron and that the housing sleeve, the compressor housing portion and a cylinder housing block, which accommodates the cylinders, as well as the motor housing portion form a single-piece part, in particular made of lightweight material.

公开(公告)号：US20250050017A1

公开(公告)日：2025-02-13

申请号：US18891541

申请日：2024-09-20

Applicant: Tandem Diabetes Care, Inc.

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

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

Abstract: 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.