Crossover prevention valve
    1.
    发明授权

    公开(公告)号:US11857994B1

    公开(公告)日:2024-01-02

    申请号:US16866008

    申请日:2020-05-04

    CPC classification number: B05B7/1254 B05B7/0408

    Abstract: A crossover prevention valve for use in a multi-component fluid mixing and dispensing system includes a valve body defining at least two fluid passageways having respective one-way check valves at their outlet ends. A forward end of the valve body cooperates with an interior surface of a dispensing nozzle to define a mixing chamber for chemically reactive fluids prior to discharging the mixed fluids out of the dispensing nozzle. The crossover prevention valve does not permit reverse flow, thereby preventing clogs due to undesired intrusion of one reactant into the flow path of another reactant. Solidified reactants left in the mixing chamber are easily removed from the valve body, permitting the valve body to be reused even after sitting for extended periods.

    Prophylaxis paste holder ring and method of manufacture
    2.
    发明授权
    Prophylaxis paste holder ring and method of manufacture 失效
    预防膏夹环和制造方法

    公开(公告)号:US6164965A

    公开(公告)日:2000-12-26

    申请号:US457962

    申请日:1999-12-09

    CPC classification number: A61C19/006

    Abstract: Providing a finger ring retainer for a container of prophylaxis dental paste from elongated formable material segments, each segment having two end portions and a central portion, the two end portions having arcuate configurations greater than 180.degree. in extent so that one end portion can be fitted onto a human finger and the second end portion can be fitted onto a container of dental paste, the central portion being bent at an approximately 45.degree. apex angle sufficient to create a pair of doubled over layers of said central portion extending generally normal to each other in substantially parallel planes.

    Abstract translation: 为细长可成形材料段预防牙膏的容器提供指环保持器,每个段具有两个端部和一个中心部分,两个端部具有大于180度的弓形结构,从而使一个端部可以安装 在人的手指上并且第二端部可以装配到牙膏的容器上,中心部分以大约45°的顶角弯曲,足以形成大致垂直于彼此延伸的所述中心部分的一对加倍的层 在大致平行的平面上。

    Biodegradable dental floss container
    4.
    发明授权
    Biodegradable dental floss container 失效
    可生物降解牙线容器

    公开(公告)号:US5190200A

    公开(公告)日:1993-03-02

    申请号:US813199

    申请日:1991-12-23

    Abstract: An integral recyclable dental floss package/container/dispenser, and a blank therefor, having an integral structure of one-piece, biodegradable material, preferably paperboard, there being a hang tab integral with extending upwardly from, and separable from, the back panel. The top closure has an inner panel extending rearwardly from the fornt panel, having a floss dispensing orifice and cutter, and an outer top cover panel extending forwardly from the rear wall.

    Abstract translation: 整体可回收的牙线包装/容器/分配器及其空白件,其具有一体式可生物降解的材料,优选纸板的整体结构,其具有从背板向上延伸并且可从后面板分离的整体式悬挂片。 顶盖具有从面板向后延伸的内板,具有牙线分配孔和切割器,以及从后壁向前延伸的外顶盖板。

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