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公开(公告)号：US10948102B2
公开(公告)日：2021-03-16
申请号：US16253382
申请日：2019-01-22
Applicant: DunAn Microstaq, Inc.
Inventor： E. Nelson Fuller , Parthiban Arunasalam , Joe A. Ojeda
Abstract: A two-stage fluid control valve includes a first stage electronically switchable, bi-stable two-port valve movable between an open position and a leak-free closed position, and a second stage microvalve configured to control the flow of fluid through a fluid outlet of the two-stage fluid control valve when the first stage electronically switchable, bi-stable two-port valve is in the open position. The electronically switchable, bi-stable two-port valve is disposed between the second stage microvalve and a fluid inlet of the two-stage fluid control valve.
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公开(公告)号：US10760702B2
公开(公告)日：2020-09-01
申请号：US16236913
申请日：2018-12-31
Applicant: DunAn Microstaq, Inc.
Inventor： E. Nelson Fuller , Parthiban Arunasalam , Kevin C. Sinkar , Dhaman K. Besarla , Gengxun K. Gurley , Joe A. Ojeda , Chen Yang
Abstract: An electronically switchable, bi-stable two-port valve includes a sleeve, a first pole piece having air flow passages formed therethrough and a first wire-wound coil mounted therein and connected to a source of electrical power, a second pole piece having air flow passages formed therethrough and a second wire-wound coil mounted therein and connected to the source of electrical power, and a permanent magnet defining an armature and movably mounted between the first and second pole pieces. The first pole piece is mounted in a first end of the sleeve and the second pole piece is mounted in a second end of the sleeve.
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公开(公告)号：US20180214646A1
公开(公告)日：2018-08-02
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
CPC classification number: A61M15/009 , A61M15/002 , A61M16/202 , A61M39/22 , A61M2039/226 , A61M2205/0244 , A61M2205/3334 , A61M2205/8206 , F16K99/0005 , F16K99/0042
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.
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公开(公告)号：US10189706B2
公开(公告)日：2019-01-29
申请号：US15686343
申请日：2017-08-25
Applicant: DunAn Microstaq, Inc.
Inventor： Wayne C. Long , Joe A. Ojeda , Gengxun K. Gurley , Joseph L. Nguyen
Abstract: A method of attaching a MEMS die to a surface includes centering and rotationally aligning a solder perform on a solder surface of a body, centering and rotationally aligning a MEMS die on the solder preform, and heating the solder perform in a reflow process until the solder is molten and surface tension of the molten solder moves the MEMS die to a position where the surface tensions balance, and the MEMS die is centered on, and rotationally aligned with, the solder surface of the body.
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公开(公告)号：US10760836B2
公开(公告)日：2020-09-01
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
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.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10544040B2
公开(公告)日：2020-01-28
申请号：US15909431
申请日：2018-03-01
Applicant: DunAn Microstaq, Inc.
Inventor： Wayne C. Long , Joe A. Ojeda , Joseph L. Nguyen
Abstract: A method of attaching a MEMS die to a mounting surface includes coating an inside surface of a pressure port of a fluid inlet member with a layer of solder mask, the fluid inlet member having a first axial end, a second axial end, and a port opening of the pressure port formed in the second axial end of the fluid inlet member. A solder preform is disposed on the mounting surface of the fluid inlet member and a MEMS die is disposed on the solder preform. The solder preform is heated in a re-flow operation to attach the MEMS die to the mounting surface, wherein the solder mask within the pressure port prevents molten solder from entering the pressure port during the re-flow operation.
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公开(公告)号：US20190092629A1
公开(公告)日：2019-03-28
申请号：US16204130
申请日：2018-11-29
Applicant: DunAn Microstaq, Inc.
Inventor： Wayne C. Long , Joe A. Ojeda , Gengxun K. Gurley , Joseph L. Nguyen
IPC: B81C1/00 , B23K1/00 , B23K35/02 , B81C3/00 , B23K101/36
Abstract: A method of attaching a MEMS die to a surface includes centering and rotationally aligning a solder perform on a solder surface of a body, centering and rotationally aligning a MEMS die on the solder preform, and heating the solder perform in a reflow process until the solder is molten and surface tension of the molten solder moves the MEMS die to a position where the surface tensions balance, and the MEMS die is centered on, and rotationally aligned with, the solder surface of the body.
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公开(公告)号：US10145594B2
公开(公告)日：2018-12-04
申请号：US15399792
申请日：2017-01-06
Applicant: DunAn Microstaq, Inc.
Inventor： E. Nelson Fuller , Parthiban Arunasalam , Joe A. Ojeda , Gengxun K. Gurley , Chen Yang , Jennifer O'Keefe
IPC: F25B41/06
Abstract: A two-stage proportional control valve configured for use in a fluid system includes a valve body having a longitudinally extending valve body bore formed therethrough. A first stage microvalve is mounted within the valve body bore, and a second stage spool assembly is mounted within the valve body bore downstream of the microvalve. The second stage spool assembly includes a sleeve and a spool slidably mounted within the sleeve.
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9.发明申请公开(公告)号：US20180319656A1
公开(公告)日：2018-11-08
申请号：US15909431
申请日：2018-03-01
Applicant: DunAn Microstaq, Inc.
Inventor： Wayne C. Long , Joe A. Ojeda , Joseph L. Nguyen
Abstract: A method of attaching a MEMS die to a mounting surface includes coating an inside surface of a pressure port of a fluid inlet member with a layer of solder mask, the fluid inlet member having a first axial end, a second axial end, and a port opening of the pressure port formed in the second axial end of the fluid inlet member. A solder preform is disposed on the mounting surface of the fluid inlet member and a MEMS die is disposed on the solder preform. The solder preform is heated in a re-flow operation to attach the MEMS die to the mounting surface, wherein the solder mask within the pressure port prevents molten solder from entering the pressure port during the re-flow operation.
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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.
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