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    Microvalve having a reduced size and improved electrical performance
    14.
    发明授权
    Microvalve having a reduced size and improved electrical performance 有权
    微型阀具有减小的尺寸和改善的电性能

    公开(公告)号：US09505608B2

    公开(公告)日：2016-11-29

    申请号：US14713332

    申请日：2015-05-15

    Applicant: DunAn Microstaq, Inc.

    Inventor： Parthiban Arunasalam ,  Chen Yang ,  E. Nelson Fuller ,  Joe A. Ojeda, Sr. ,  Gengxun Kara Gurley

    IPC: F16K11/065 ,  B81B7/00 ,  F16K99/00

    CPC classification number: B81B7/0061 ,  B81B2201/054 ,  B81B2203/0307 ,  B81B2203/0315 ,  F16K99/0011 ,  F16K99/0028 ,  F16K99/0044 ,  F16K2099/008

    Abstract: A microvalve includes a displaceable member having an elongated arm portion, a plurality of actuator ribs connected through a central spine to the elongated arm portion, and a hinge portion. Each of the actuator ribs has a first portion and a second portion, the first portions each having an end connected to the central spine, the second portions each having an end connected to the central spine. A channel is formed in the plate. A plurality of elongated openings is formed in the plate and define the actuator ribs, each elongated opening having longitudinally extending side edges. One of the elongated openings separates each rib in the second portion of ribs from an adjacent rib or the plate. The channel and a longitudinally extending side edge of one of the elongated openings separate the second portion of the actuator ribs from the plate and define an electrical isolation region.

    Abstract translation: 微型阀包括具有细长臂部分的可移动构件，通过中心脊连接到细长臂部分的多个致动器肋和铰链部分。 每个致动器肋具有第一部分和第二部分，第一部分各自具有连接到中心脊的端部，第二部分各自具有连接到中心脊部的端部。 在板中形成通道。 多个细长开口形成在板中并限定致动器肋，每个细长开口具有纵向延伸的侧边缘。 一个细长的开口将肋的第二部分中的每个肋与相邻的肋或板分开。 一个细长开口的通道和纵向延伸的侧边缘将致动器肋的第二部分与板分隔开并限定电隔离区。

    Two port mems silicon flow control valve
    15.
    发明授权
    Two port mems silicon flow control valve 有权

    公开(公告)号：US11353140B2

    公开(公告)日：2022-06-07

    申请号：US16775402

    申请日：2020-01-29

    Applicant: DunAn Microstaq, Inc.

    Inventor： E. Nelson Fuller ,  Parthiban Arunasalam ,  Chen Yang ,  Joe A. Ojeda

    IPC: F16K99/00

    Abstract: A microvalve includes a first plate having a surface defining an actuator cavity. A second plate has a surface that abuts the surface of the first plate and includes a displaceable member that is disposed within the actuator cavity for movement between a closed position, wherein the displaceable member prevents fluid communication through the microvalve, and an opened position, wherein the displaceable member does not prevent fluid communication through the microvalve. An actuator is connected to the displaceable member. The displaceable member includes a sealing portion having a plurality of elongated control arms extending inwardly from one end thereof, wherein the control arms are configured as a valve closing members for each of a plurality of fluid flow openings in the first plate.

    TWO PORT MEMS SILICON FLOW CONTROL VALVE
    16.
    发明申请
    TWO PORT MEMS SILICON FLOW CONTROL VALVE 审中-公开

    公开(公告)号：US20200240547A1

    公开(公告)日：2020-07-30

    申请号：US16775402

    申请日：2020-01-29

    Applicant: DunAn Microstaq, Inc.

    Inventor： E. Nelson Fuller ,  Parthiban Arunasalam ,  Chen Yang ,  Joe A. Ojeda

    IPC: F16K99/00

    Abstract: A microvalve includes a first plate having a surface defining an actuator cavity. A second plate has a surface that abuts the surface of the first plate and includes a displaceable member that is disposed within the actuator cavity for movement between a closed position, wherein the displaceable member prevents fluid communication through the microvalve, and an opened position, wherein the displaceable member does not prevent fluid communication through the microvalve. An actuator is connected to the displaceable member. The displaceable member includes a sealing portion having a plurality of elongated control arms extending inwardly from one end thereof, wherein the control arms are configured as a valve closing members for each of a plurality of fluid flow openings in the first plate.

    Metering device for a metered dose inhaler
    17.
    发明授权
    Metering device for a metered dose inhaler 有权

    公开(公告)号：US10556072B2

    公开(公告)日：2020-02-11

    申请号：US15658861

    申请日：2017-07-25

    Applicant: DunAn Microstaq, Inc.

    Inventor： E. Nelson Fuller ,  Parthiban Arunasalam ,  Joseph L. Nguyen ,  Joe A. Ojeda ,  Wayne C. Long

    IPC: A61M16/00 ,  A61M15/00 ,  A61M16/20 ,  A61M39/22 ,  F16K99/00

    Abstract: An improved aerosol dispensing apparatus includes an aerosol container, a discharge piece, an actuator, a flow control canister valve assembly attached to the aerosol container, a battery, and an electronically controlled flow control valve electronically connected to the battery and in fluid communication with the flow control canister valve assembly. The aerosol container and the attached flow control canister valve assembly are further attached to the actuator and the actuator is mounted for slidable movement within the discharge piece. The flow control canister valve assembly is movable between an open position wherein a volume of an aerosol formulation is directed from the aerosol container through the flow control canister valve assembly to the electronically controlled flow control valve, and a closed position wherein the aerosol formulation is not permitted to flow through the flow control canister valve assembly to the electronically controlled flow control valve.

    EXPANSION VALVE
    19.
    发明申请
    EXPANSION VALVE 审中-公开

    公开(公告)号：US20190078819A1

    公开(公告)日：2019-03-14

    申请号：US16184620

    申请日：2018-11-08

    Applicant: DunAn Microstaq, Inc.

    Inventor： E. Nelson Fuller ,  Parthiban Arunasalam ,  Joe A. Ojeda ,  Gengxun K. Gurley ,  Chen Yang ,  Jennifer O'Keefe

    IPC: F25B41/06

    CPC classification number: F25B41/062 ,  F25B2341/06 ,  F25B2600/2513

    Abstract: A spool assembly configured for use in a two-stage proportional control valve in a fluid system includes a substantially cylindrical sleeve having an axially extending sleeve bore extending from an open first end to an open second end. A spool includes a spool bore that extends from an open first axial end to a closed second axial end and is slidably mounted within the sleeve bore. The spool further includes a first circumferentially extending groove defining a fluid flow path, a second circumferentially extending groove formed near a first end thereof, a third circumferentially extending groove formed near the second axial end thereof, a circumferentially extending pressure groove formed therein between the second axial end and the third circumferentially extending groove, and first, second, and third transverse fluid passageways formed through a side wall of the spool.

    MEMS based solenoid valve
    20.
    发明授权
    MEMS based solenoid valve 有权

    公开(公告)号：US10190702B2

    公开(公告)日：2019-01-29

    申请号：US15451615

    申请日：2017-03-07

    Applicant: DunAn Microstaq, Inc.

    Inventor： E. Nelson Fuller ,  Parthiban Arunasalam ,  Joe A. Ojeda ,  Chen Yang

    IPC: F16K99/00 ,  F16K31/02 ,  F16K31/08

    Abstract: The electronically switchable MEMS valve includes a housing formed from soft magnetic material and defining a fluid flow path therethrough. A magnetic field generating member is mounted within the housing and connected to a source of electrical power. A MEMS valve portion is mounted within the magnetic field generating member, has a valve closing member movably mounted therein, and defines a portion of the fluid flow path therethrough. The valve closing element is movable between a closed position wherein the fluid flow path is blocked, and an open position wherein the fluid flow path is not blocked. When an electric current is removed from the magnetic field generating member, the valve closing element is configured to move to and remain in the one of the closed position and the open position to which the valve closing element is the closest when the electric current is removed.

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