Adsorption of sebum
    1.
    发明授权
    Adsorption of sebum 失效
    皮脂吸附

    公开(公告)号:US4000317A

    公开(公告)日:1976-12-28

    申请号:US466937

    申请日:1974-05-06

    摘要: Sebum, the oily material secreted by the sebaceous glands, especially on the human face, is adsorbed by a thin layer of a pyrogenic colloidal silica of spherical shape and very small particle size. The pyrogenic colloidal silica has a high capacity for adsorbing the sebum and preventing it from exerting its oily effects on the skin. Free flow of sebum from the sebaceous gland is allowed but even in the cases of persons whose sebaceous glands are overactive, the skin is not excessively oily, due to the adsorption effects of the pyrogenic colloidal silica. The appearance of the facial skin of a user is improved, the surface of the skin is less apt to support harmful bacterial and fungal growth and, if make-ups containing dyes or pigments are employed, they are less apt to undergo color changes, due to the effects of oil thereon.Compositions that may be employed to apply the pyrogenic colloidal silica to the skin are non-oily, aqueous, alcoholic or aqueous alcoholic suspensions of the pyrogenic colloidal silica in certain ranges of concentrations thereof, which may include minor proportions of non-oily adjuvants, such as thickeners, solvents, emollients, pH modifiers, bactericides, drying agents and exfoliants.By use of a small amount of such a composition, sebum adsorption can be effected over daytime periods of from 4 to 12 hours, with no re-application required and the pyrogenic colloidal silica composition can be used in such small quantities as to be essentially invisible on the skin. Heavier applications may be employed overnight, when unobtrusiveness of the product is not as important.

    摘要翻译: 皮脂,由皮脂腺特别是人脸分泌的油状物质被球形和非常小粒径的热解胶体二氧化硅的薄层吸附。 热解胶体二氧化硅具有高的吸附皮脂的能力并防止其对皮肤的油性作用。 允许皮脂从皮脂腺自由流动,但即使在皮脂腺过度活动的人的情况下,由于热解胶体二氧化硅的吸附作用,皮肤也不会过度油腻。 使用者的面部皮肤的外观得到改善,皮肤表面不易于支持有害的细菌和真菌生长,并且如果使用含有染料或颜料的化妆品,则它们不太容易发生颜色变化,因为 对油的影响。

    System and method for controlling a variable speed compressor during stopping
    2.
    发明申请
    System and method for controlling a variable speed compressor during stopping 有权
    停止期间控制变速压缩机的系统和方法

    公开(公告)号:US20060193728A1

    公开(公告)日:2006-08-31

    申请号:US11362460

    申请日:2006-02-24

    IPC分类号: F04B49/00

    摘要: A compressor system operable to shutdown in response to a shutdown signal. The compressor system includes a compression device operable between a first speed and a second speed to produce a flow of compressed fluid at a pressure. A blowdown valve is movable between a closed position and an open position in which at least a portion of the flow of compressed fluid passes through the blowdown valve to reduce the pressure of the flow of compressed fluid. A sensor is positioned to measure the pressure and a controller is operable to move the blowdown valve to the open position and set the speed of the compression device to a low set point speed in response to the shutdown signal.

    摘要翻译: 一种压缩机系统,其可操作以响应于关闭信号而关闭。 压缩机系统包括可在第一速度和第二速度之间操作以在压力下产生压缩流体流的压缩装置。 排污阀可以在关闭位置和打开位置之间移动,在该位置中,压缩流体流的至少一部分通过排污阀,以减小压缩流体流的压力。 定位传感器以测量压力,并且控制器可操作以响应于关闭信号将排污阀移动到打开位置并将压缩装置的速度设定到低设定点速度。