Combination spray apparatus
    5.
    发明授权
    Combination spray apparatus 失效
    组合式喷雾装置

    公开(公告)号:US06378789B1

    公开(公告)日:2002-04-30

    申请号:US09585849

    申请日:2000-06-01

    IPC分类号: B05B730

    摘要: A combination spray apparatus which allows for the selection of several different flowable materials to be sprayed from a single unit and at the site of the unit itself. In the preferred manner, the spray apparatus includes a trigger nozzle as well as the selection of two different materials to be sprayed through a second barrel portion. An eductor it utilized to draw selected materials into a spray stream. The combination spray apparatus is operable with water pressures which are customary to most cities and industries.

    摘要翻译: 一种组合喷雾装置,其允许从单个单元和单元本身的位置喷射几种不同的可流动材料。 在优选的方式中,喷射装置包括触发喷嘴以及通过第二筒部分喷射的两种不同材料的选择。 用于将选定材料吸入喷雾流中的喷射器。 组合喷雾装置可与大多数城市和工业中常规的水压一起操作。

    Back flow prevention device
    6.
    发明授权
    Back flow prevention device 失效
    防回流装置

    公开(公告)号:US5678592A

    公开(公告)日:1997-10-21

    申请号:US624848

    申请日:1996-03-26

    IPC分类号: E03C1/10 F16K24/04

    摘要: Disclosed is an improved device (10) for preventing back flow of possibly-contaminated water into a potable water system. The device (10) includes first, second and third nozzles (33, 35, 37) in series flow relationship, and an air gap (49) between the first and second nozzles (33, 35). In the improvement, the air gap (49) is a primary air gap and the device (10) includes a secondary air gap (19) fixed with respect to the second nozzle (35). In a more specific aspect of the new device (10), the second and third nozzles (35, 37) are in a tubular housing (41) and the device (10) includes a containment bowl (21) around the housing (41). The secondary air gap (19) includes an aperture (53) in the housing wall (55) and such aperture (53) opens to the containment bowl (21). Other aspects of the new device (10 involve particular nozzle configurations and relationships and a restrictor (103) inhibiting back flow.

    摘要翻译: 公开了一种改进的装置(10),用于防止可能受污染的水回流到饮用水系统中。 该装置(10)包括串联流动关系的第一,第二和第三喷嘴(33,35,37)和在第一和第二喷嘴(33,35)之间的气隙(49)。 在此改进中,气隙(49)是主气隙,并且装置(10)包括相对于第二喷嘴(35)固定的二次气隙(​​19)。 在新装置(10)的更具体的方面,第二和第三喷嘴(35,37)处于管状壳体(41)中,并且装置(10)包括围绕壳体(41)的容纳碗(21) 。 二次气隙(​​19)在壳体壁(55)中包括孔(53),并且该孔(53)通向容纳碗(21)。 新设备的其他方面(10涉及特定的喷嘴配置和关系以及限制器(103))抑制回流。

    Non-educting back flow prevention device
    7.
    发明授权
    Non-educting back flow prevention device 失效
    非排水回流防止装置

    公开(公告)号:US6098651A

    公开(公告)日:2000-08-08

    申请号:US852244

    申请日:1997-05-06

    IPC分类号: E03C1/10 F16K24/04

    CPC分类号: E03C1/102 E03C1/104

    摘要: Disclosed is a non-educting device (10) for preventing back flow of contaminated water into a potable water system. The device (10) includes first and second nozzles (33, 35) in series flow relationship to one another, an air gap (49) between the first and second nozzles (33, 35) and a water inlet (27). In the improvement, the inlet (27) is the sole liquid inlet of the device (10) and the first nozzle (33) is between the air gap (49) and the inlet (27). Such nozzle (33) includes a tapered portion having an axial length (AL) and a circular discharge opening (59). The ratio of the axial length (AL) to the diameter of the opening (59) is in the range of 0.7 to 1.1. Other features involve a unique containment bowl (21) and a secondary air gap (19) in liquid flow relationship to the containment bowl (21).

    摘要翻译: 公开了一种用于防止受污染的水回流到饮用水系统中的非喷射装置(10)。 装置(10)包括彼此串联流动的第一和第二喷嘴(33,35),第一和第二喷嘴(33,35)之间的空气间隙(49)和进水口(27)。 在改进中,入口(27)是装置(10)的唯一液体入口,并且第一喷嘴(33)在气隙(49)和入口(27)之间。 这种喷嘴(33)包括具有轴向长度(AL)和圆形排出口(59)的锥形部分。 轴向长度(AL)与开口(59)的直径的比率在0.7至1.1的范围内。 其他特征涉及与容纳碗(21)相关的液体流动的独特的容纳碗(21)和二次气隙(​​19)。

    Mixing eductor
    8.
    发明授权
    Mixing eductor 失效
    混合喷射器

    公开(公告)号:US06279598B1

    公开(公告)日:2001-08-28

    申请号:US09315241

    申请日:1999-05-20

    IPC分类号: E03C110

    摘要: Disclosed is an improved mixing eductor (10) of the type wherein the primary liquid (17), e.g., water, is in a main stream (201) flowing in a downstream direction. A venturi tube (51) is in the eductor (10) and has an annular sharp edge (131) in the main stream (201), thereby dividing such stream (201) into a primary stream (179) and a secondary stream (181) around the primary stream (179). The eductor (10) has an air gap (103) and a flow guide (47) downstream thereof. In a specific embodiment, the flow guide (47) is annular around the venturi tube (51) and the tube (51) and the guide (47) are in spaced telescoped relationship. Several embodiments of the eductor (10) and a new method for mixing liquids are disclosed.

    摘要翻译: 公开了一种改进的混合喷射器(10),其中主要液体(17)例如水在主流体(201)中沿着下游方向流动。 文丘里管(51)在喷射器(10)中并且在主流(201)中具有环形锋利边缘(131),从而将该流(201)分成主流(179)和次流(181) )围绕主流(179)。 喷射器(10)在其下游具有气隙(103)和流动引导件(47)。 在具体实施例中,流动引导件(47)围绕文丘里管(51)环绕,管(51)和引导件(47)处于间隔的伸缩关系。 公开了喷射器(10)的几个实施例和用于混合液体的新方法。

    Mixing eductor
    9.
    发明授权
    Mixing eductor 失效
    混合喷射器

    公开(公告)号:US5927338A

    公开(公告)日:1999-07-27

    申请号:US803488

    申请日:1997-02-20

    IPC分类号: B01F5/04 E03C1/046 E03B5/00

    摘要: Disclosed is an improved mixing eductor (10) of the type wherein the primary liquid (17), e.g., water, is in a main stream (201) flowing in a downstream direction. A venturi tube (51) is in the eductor (10) and has an annular sharp edge (131) in the main stream (201), thereby dividing such stream (201) into a primary stream (179) and a secondary stream (181) around the primary stream (179). The eductor (10) has an air gap (103) and a flow guide (47) downstream thereof. In a specific embodiment, the flow guide (47) is annular around the venturi tube (51) and the tube (51) and the guide (47) are in spaced telescoped relationship. Several embodiments of the eductor (10) and a new method for mixing liquids are disclosed.

    摘要翻译: 公开了一种改进的混合喷射器(10),其中主要液体(17)例如水在主流体(201)中沿着下游方向流动。 文丘里管(51)在喷射器(10)中并且在主流(201)中具有环形锋利边缘(131),从而将该流(201)分成主流(179)和次流(181) )围绕主流(179)。 喷射器(10)在其下游具有气隙(103)和流动引导件(47)。 在具体实施例中,流动引导件(47)围绕文丘里管(51)环绕,管(51)和引导件(47)处于间隔的伸缩关系。 公开了喷射器(10)的几个实施例和用于混合液体的新方法。