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13 条记录 (耗时 0.027 秒)

    Static foam generating apparatus and method
    1.
    发明授权
    Static foam generating apparatus and method 失效
    静电泡沫发生装置及方法

    公开(公告)号：US06422734B1

    公开(公告)日：2002-07-23

    申请号：US09427982

    申请日：1999-10-27

    申请人： Gopalakrishnan Sethuraman ,  Ronald S. Finkelstein ,  Larry W. Kingston ,  Robert C. Mitchell ,  W. Roy Burke

    发明人： Gopalakrishnan Sethuraman ,  Ronald S. Finkelstein ,  Larry W. Kingston ,  Robert C. Mitchell ,  W. Roy Burke

    IPC分类号： B01F506

    CPC分类号： B28C5/02 ,  B01F5/0406 ,  B01F5/0682 ,  B01F5/0688 ,  B28C5/386 ,  Y10S261/26

    摘要： A static foam generating apparatus including a pipe having an inner diameter, an axis, an input end, and an output end is disclosed. A plurality of perforated discs are disposed in the pipe, the discs positioned parallel to each other and perpendicular to the pipe axis. A plurality of spacer rings are disposed within the pipe, a spacer ring separating each perforated disc from each adjacent perforated disc. Additionally, a method for generating foam including the steps of providing a static foam generating apparatus including a pipe having an inner diameter, an axis, an input end, and an output end, supplying feed water to the pipe, supplying surfactant to the pipe, and supplying air to the pipe is disclosed.

    摘要翻译： 公开了一种包括具有内径，轴，输入端和输出端的管的静态泡沫产生装置。 多个穿孔盘设置在管中，盘彼此平行并垂直于管轴。 多个间隔环设置在管内，间隔环将每个穿孔盘与每个相邻的穿孔盘分开。 另外，一种用于产生泡沫的方法，包括以下步骤：提供一种包括具有内径，轴线，输入端和输出端的管的静态泡沫发生装置，向管供给给水，向管供应表面活性剂， 并且公开了向管道供给空气。

    Method of producing calcium sulfate alpha-hemihydrate
    2.
    发明授权
    Method of producing calcium sulfate alpha-hemihydrate 失效
    生产硫酸钙α-半水合物的方法

    公开(公告)号：US06652825B2

    公开(公告)日：2003-11-25

    申请号：US09846728

    申请日：2001-05-01

    申请人： Gopalakrishnan Sethuraman ,  Claudette Brown ,  Ronald S. Finkelstein

    发明人： Gopalakrishnan Sethuraman ,  Claudette Brown ,  Ronald S. Finkelstein

    IPC分类号： C01B1796

    CPC分类号： C04B11/032 ,  C04B11/024 ,  C04B40/0014

    摘要： A method of producing calcium sulfate &agr;-hemihydrate is disclosed, including the steps of exposing a mixture including a calcium sulfate form selected from the group consisting of calcium sulfate dihydrate, calcium sulfate &bgr;-hemihydrate, water-soluble calcium sulfate anhydrite, and mixtures thereof, water, and a crystallization catalyst, to microwave radiation to produce calcium sulfate &agr;-hemihydrate; and separating at least a portion of the calcium sulfate &agr;-hemihydrate to provide a solid comprising calcium sulfate &agr;-hemihydrate and a filtrate and/or remainder that can be recycled to provide at least one of a calcium sulfate form, water, a crystallization catalyst, a crystal habit modifier, and a surfactant for use in production of additional &agr;-hemihydrate.

    摘要翻译： 公开了一种生产硫酸钙α-半水合物的方法，包括以下步骤：将包含选自二水合硫酸钙，β-硫酸钙半水合物，水溶性硫酸钙无水石膏及其混合物的硫酸钙形式的混合物 ，水和结晶催化剂，以微波辐射产生硫酸钙α-半水合物; 并分离至少一部分硫酸钙α半水合物以提供包含硫酸钙α-半水合物和滤液和/或余量的固体，所述固体可以再循环以提供至少一种硫酸钙形式，水，结晶催化剂 ，水晶习性调节剂和用于生产另外的α-半水合物的表面活性剂。

    Method of providing void space in gypsum wallboard and in a gypsum core composition
    6.
    发明授权
    Method of providing void space in gypsum wallboard and in a gypsum core composition 有权
    在石膏墙板和石膏芯组合物中提供空隙的方法

    公开(公告)号：US06706128B2

    公开(公告)日：2004-03-16

    申请号：US09887284

    申请日：2001-06-22

    申请人： Gopalakrishnan Sethuraman

    发明人： Gopalakrishnan Sethuraman

    IPC分类号： B01F1700

    CPC分类号： C04B24/16 ,  C04B28/14 ,  C04B38/10 ,  C04B24/32 ,  C04B38/106

    摘要： The invention provides a method of providing void spaces in gypsum wallboard and in a gypsum core composition such that the weight of the gypsum product is reduced without deleteriously affecting its mechanical properties. More specifically, the invention provides a method of providing void spaces in a gypsum wallboard comprising the step of adding air bubbles having different relative stabilities to a gypsum slurry, wherein the less stable air bubbles are sufficiently unstable such that they coalesce on contact with each other in the slurry to form larger air bubbles, and the weight ratio of the less stable air bubbles to the more stable air bubbles initially added to the slurry is such that there are a sufficient number of more stable air bubbles to prevent a majority of the less stable air bubbles from becoming large enough to rupture before the slurry sets sufficiently to prevent the slurry from filling void spaces left by ruptured bubbles. The method further includes the steps of mixing the air bubble-containing gypsum slurry to distribute the air bubbles throughout the slurry to form a core composition of gypsum wallboard, depositing the core composition on a cover sheet, and, applying a second cover sheet over the core composition to form a gypsum wallboard.

    摘要翻译： 本发明提供了一种在石膏墙板和石膏芯组合物中提供空隙的方法，使得石膏制品的重量减少而不会有害地影响其机械性能。 更具体地，本发明提供了一种在石膏墙板中提供空隙的方法，包括向石膏浆添加具有不同相对稳定性的气泡的步骤，其中较不稳定的气泡足够不稳定，使得它们在彼此接触时聚结 在浆料中形成较大的气泡，并且较不稳定的气泡与最初添加到浆料中的更稳定的气泡的重量比使得存在足够数量的更稳定的气泡以防止大部分较少的气泡 稳定的气泡在浆料充分设定之前变得足够大以破裂，以防止浆料填充由破裂气泡留下的空隙空间。 该方法还包括以下步骤：将含气泡的石膏浆料混合以在整个浆料中分配气泡，以形成石膏墙板的芯组合物，将芯组合物沉积在覆盖片上，以及将第二覆盖片涂覆在 核心组成，形成石膏墙板。