HIGH-PRESSURE PRE-COMPRESSION PUMP

    公开(公告)号:US20220235760A1

    公开(公告)日:2022-07-28

    申请号:US17610591

    申请日:2020-05-11

    Inventor: Ludovic PETIT

    Abstract: The invention relates to a pump comprising a piston (1) which slides in a body (3) having a chamber (5) defined between an inlet valve (11) and an outlet valve (12), comprising an outlet valve element sliding during actuation in a sealed manner in the chamber (5), which comprises passage means (40) such that, at the end of the actuation, said outlet valve element (39) cooperates in a non-sealing manner with said passage means (40) in order to open said outlet valve (12), said inlet valve (11) comprising an inlet valve element (10) which slides after closure of the inlet valve (11) in a sleeve (9) of the body (3) having a reduced diameter and containing a spring (20) bearing on said inlet valve element (10) and on a bottom of said sleeve (9), said spring (20) returning the piston (1) into its rest position, said sleeve (9) having an inner diameter of less than 4.2 mm, said spring (20) having a force of at least 20 N, so that said pump delivers said fluid product at a pressure (P) of at least 15 bars.

    DEVICE FOR DISPENSING A FLUID PRODUCT
    2.
    发明申请

    公开(公告)号:US20190176175A1

    公开(公告)日:2019-06-13

    申请号:US16098199

    申请日:2017-05-02

    Inventor: Ludovic PETIT

    Abstract: A fluid dispenser device comprising a body (10) that supports, in stationary manner, a reservoir (20) containing fluid, a dispenser head (30) being assembled on said body (10) so as to be axially movable relative to said reservoir (20), said dispenser head (30) being provided with a dispenser orifice (31), said dispenser head (30) including a proximal bearing surface (35) that, during actuation, receives at least one, and typically two, of the user's fingers, and said body (10) including a distal bearing surface (15) that, during actuation, is suitable for receiving one of the user's fingers, and typically the thumb, said device including a removable actuator member (40) that is fastened in removable manner on said body (10) at said distal bearing surface (15), said removable actuator member (40) having a radial dimension that is greater than the radial dimension of said bearing surface (15).

    NASAL DELIVERY ASSEMBLY FOR A FLUID PRODUCT AND METHOD FOR ACTUATING THE ASSEMBLY

    公开(公告)号:US20190001088A1

    公开(公告)日:2019-01-03

    申请号:US16064711

    申请日:2017-01-06

    Inventor: Ludovic PETIT

    Abstract: A nasal fluid dispenser assembly (100) having a first reservoir (110) of fluid, a metering pump (120) mounted on the first reservoir (110) and including a piston (121); a compressed gas flow generator system; a nasal endpiece (150) having a connection portion (151) fastened to the outlets of the pump and valve (140), a fluid chamber (153) that receives the dose of fluid and the flow of compressed gas, and a nasal insertion element (152 that extends longitudinally along an axis (B) and contains a dispenser channel (154) connected to the fluid chamber and has a dispenser orifice (155). The axis (B) forms an angle (α) relative to the longitudinal axis (A). The dose of fluid is dispensed into the fluid chamber and then expelled under pressure by the flow of compressed gas out from the fluid chamber through the dispenser channel (154) the dispenser orifice (155).

    FLUID INJECTION DEVICE
    4.
    发明申请

    公开(公告)号:US20210162130A1

    公开(公告)日:2021-06-03

    申请号:US17108693

    申请日:2020-12-01

    Inventor: Ludovic PETIT

    Abstract: A fluid injection device including a syringe with a body (1), a piston (3), and a needle (2) with an injection tip (20); a piston rod (5); and a sleeve (10) around the syringe and axially movable between a non-projecting position in which said sleeve (10) does not cover the injection tip (20) and a projecting position. The sleeve (10) urged, while in said non-projecting position, towards its projecting position by a spring (30). The sleeve (10) has an inner portion (11) extending inside the body, and an outer portion (12) extending outside the body (1), the inner portion (11) including a radially-deformable tab (110) snap-fastened in a window (6) of the body (1), blocking the sleeve in its non-projecting position. A hollow member (40) co-operates, after injection, with the radially-deformable tab (110), so that after the fluid is injected, the sleeve is moved automatically towards its projecting position.

    DEVICE FOR DISPENSING A FLUID PRODUCT
    5.
    发明申请

    公开(公告)号:US20170136477A1

    公开(公告)日:2017-05-18

    申请号:US15323448

    申请日:2015-07-02

    Abstract: A fluid dispenser device with a body (1), and an axially movable dispenser head (2). The body receives a reservoir (10) having a tube (11) with a proximal axial opening (12) closed by a stopper (20) and adapted to slide in leaktight manner in the tube (11). The dispenser head includes a cannula (4) connected at one end to the dispenser orifice (3), and provided at its other end with a perforating tip (5) for perforating the stopper. The cannula is inserted into a cannula support (9) secured to the dispenser head and including a borehole with an inside diameter equal to, or a little greater than, the outside diameter of the cannula. The distal end of the cannula support (9) has a projection extending inwards and an inside diameter equal to, or a little less than, the outside diameter of the cannula.

    METERING VALVE AND DEVICE FOR DISPENSING A FLUID PRODUCT COMPRISING SUCH A VALVE
    6.
    发明申请
    METERING VALVE AND DEVICE FOR DISPENSING A FLUID PRODUCT COMPRISING SUCH A VALVE 审中-公开
    用于分配包含这种阀的流体产品的计量阀和装置

    公开(公告)号:US20160084385A1

    公开(公告)日:2016-03-24

    申请号:US14890974

    申请日:2014-06-02

    CPC classification number: F16K3/0218 B65D83/54

    Abstract: A fluid dispenser valve including a valve body extending along a longitudinal axis between a first axial end and a second axial end, the valve body containing a metering chamber; and a valve member that slides axially in the valve body between a rest position and a dispensing position, for selectively dispensing the contents of the metering chamber. The metering chamber is connected, in the valve member rest position, to a fluid reservoir, to fill the metering chamber by gravity when the valve is upsidedown with the metering chamber below the reservoir while the valve member is in the rest position, and to empty the metering chamber by gravity when the valve is upright. The valve body includes a first hole and a second hole, to fill and to empty the metering chamber, the first hole being axially offset along the longitudinal axis relative to the at second hole.

    Abstract translation: 一种流体分配阀,包括在第一轴向端和第二轴向端之间沿着纵向轴线延伸的阀体,所述阀体包含计量室; 以及阀构件,其在所述阀体中在静止位置和分配位置之间轴向滑动,用于选择性地分配所述计量室的内容物。 计量室在阀构件静止位置被连接到流体储存器,当阀被置于储存器下方的计量室的同时,当阀构件处于静止位置时,通过重力将计量室填充到计量室中,并且空 当阀门直立时,重力计量室。 阀体包括第一孔和第二孔,以填充和排空计量室,第一孔沿纵向轴线相对于第二孔轴向偏移。

    IMPROVED PRECOMPRESSION PUMP
    7.
    发明申请
    IMPROVED PRECOMPRESSION PUMP 有权
    改进的预防泵

    公开(公告)号:US20160008833A1

    公开(公告)日:2016-01-14

    申请号:US14762268

    申请日:2014-02-13

    Inventor: Ludovic PETIT

    CPC classification number: B05B11/3023 B05B11/3039 B05B11/3052 B05B11/3073

    Abstract: A fluid dispenser pump having a piston secured to an actuator rod that slides in a pump body that includes a pump chamber defined between an inlet valve and an outlet valve. The outlet valve has an outlet valve member, wherein, during actuation, the outlet valve member slides in leaktight manner in the pump body, the pump body including a passage formed by at least a pump body portion of greater inside diameter, so that, at the end of actuation of the pump, the outlet valve member co-operates in non-leaktight manner with the passage so as to open the outlet valve, so as to enable the fluid contained in the pump chamber to be expelled.

    Abstract translation: 一种流体分配器泵,其具有固定到致动器杆的活塞,所述活塞杆在泵体内滑动,所述泵体包括限定在入口阀和出口阀之间的泵室。 出口阀具有出口阀构件,其中在致动期间,出口阀构件在泵体中以密封的方式滑动,泵体包括至少由较大内径的泵体部分形成的通道,使得在 泵的致动结束时,出口阀构件与通道以非密封方式协作以便打开出口阀,从而能够排出容纳在泵室中的流体。

    METERING VALVE WITH IMPROVED METERING CHAMBER

    公开(公告)号:US20250074692A1

    公开(公告)日:2025-03-06

    申请号:US18726939

    申请日:2023-01-04

    Abstract: Metering valve for dispensing a fluid product, having a valve body containing a metering chamber, the metering chamber defined by a chamber insert and two O-rings, a valve stem seal and a chamber seal. The chamber insert has a cylindrical wall, an upper edge that cooperates with the valve stem seal and a lower edge that cooperates with the chamber seal, a valve stem sliding axially in the valve body between a rest position and a dispensing position, to selectively dispense the contents of said metering chamber. The said valve stem is urged towards its rest position by a spring that cooperates, on the one hand, with the valve body and on the other hand with the valve stem. The upper edge of the chamber insert has an opening connecting the metering chamber to an external volume arranged outside the chamber insert, between the valve body and the cylindrical wall.

    NASAL POWDER DELIVERY DEVICE
    9.
    发明申请

    公开(公告)号:US20220362491A1

    公开(公告)日:2022-11-17

    申请号:US17625439

    申请日:2020-07-09

    Abstract: A nasal delivery device for a powder, having a reservoir, a delivery head and an air discharge system generating a flow of compressed air. The air discharge system has an air chamber, formed by a hollow axial cylinder, and a piston that sealingly slides in the air chamber to compress the air. The hollow axial cylinder has a radial shoulder connecting a first cylinder portion and a second cylinder portion. Before actuation, the piston is at the first cylinder portions and, during actuation, the piston sealingly cooperates with the second cylinder portion. The radial shoulder defines a profile that the piston overcomes at start of actuation. The piston has an upper lip and a lower lip, a skirt around the hollow axial cylinder with a lower flange projecting radially inward. The skirt has a profile radially projecting towards the inside, cooperating before actuation with the lower lip of the piston.

    DEVICE FOR DISPENSING A FLUID PRODUCT
    10.
    发明申请

    公开(公告)号:US20200316326A1

    公开(公告)日:2020-10-08

    申请号:US16955972

    申请日:2018-12-18

    Inventor: Ludovic PETIT

    Abstract: A fluid dispenser device having a reservoir (10) containing fluid; a dispenser head (20) provided with a dispenser orifice (21); and a piston (45; 70) for dispensing at least a portion of the fluid through the dispenser orifice (21). The reservoir (10) is closed in leaktight manner by a closure element (25) before actuation. The device includes a passage (40) for connecting the reservoir (10) to the dispenser orifice (21) during actuation, the passage (40) including a hollow sleeve (41) that is stationary relative to the dispenser head (20), for sliding around the closure element (25) during actuation, so as to open the passage (40).

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