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    In vivo dermal absorption method and system for laboratory animals
    1.
    发明授权
    In vivo dermal absorption method and system for laboratory animals 失效
    实验室动物体内皮肤吸收方法和系统

    公开(公告)号：US4582055A

    公开(公告)日：1986-04-15

    申请号：US612776

    申请日：1984-05-22

    申请人： James N. McDougal ,  Michael L. Gargas ,  Robert A. Strohaver ,  Gary W. Jepson ,  Kenneth R. Thimling ,  Mark A. Williams

    发明人： James N. McDougal ,  Michael L. Gargas ,  Robert A. Strohaver ,  Gary W. Jepson ,  Kenneth R. Thimling ,  Mark A. Williams

    IPC分类号： A61D7/04 ,  A61M16/00

    CPC分类号： A61D7/04

    摘要： A method and system for in vivo dermal absorption testing of a laboratory animal uses a mask and harness for protecting the respiratory tract of the animal when the animal housed within a sealed chamber with a hazardous test vapor introduced in the chamber. Because of the difficulty of getting a good seal with a protective mask on a laboratory animal, this system is designed with an air leak from inside the mask into the chamber. To ensure that the test vapor does not infiltrate the mask nor leak from the chamber, the vapor is maintained at a negative pressure within the chamber as compared to the external atmospheric pressure and air is supplied to the mask for the animal to breathe at a positive pressure and at a greater rate than that needed by the animal.

    摘要翻译： 实验室动物的体内皮肤吸收测试的方法和系统使用面罩和线束来保护动物的呼吸道，当动物被容纳在具有引入室内的危险测试蒸气的密封室中时。 由于在实验室动物上难以用防护面罩获得良好的密封，因此该系统设计为具有从面罩内部进入腔室的空气泄漏。 为了确保测试蒸汽不会渗透到面罩中，也不会从室泄漏，与外部大气压力相比，蒸气在室内保持在负压，空气被供给到面罩中，以使动物呼吸为阳性 压力和比动物需要的更大的速度。

    Interface system for garment barrier
    3.
    发明授权
    Interface system for garment barrier 有权
    服装屏障接口系统

    公开(公告)号：US08112820B2

    公开(公告)日：2012-02-14

    申请号：US11522489

    申请日：2006-09-14

    申请人： Matthew A. Johnson ,  Mark A. Williams

    发明人： Matthew A. Johnson ,  Mark A. Williams

    IPC分类号： A41D19/00

    CPC分类号： A41D19/0089 ,  A41D13/0005

    摘要： A protective sealing system with a barrier seal between two articles of apparel is provided. The system has at least two elastomeric cuffs securable to a sealing support oriented between wearer of garment and both the first cuff and the second elastomeric cuff to expand said cuffs providing a double barrier seal.

    摘要翻译： 提供了一种在两件服装之间具有屏障密封的保护性密封系统。 该系统具有至少两个可固定到衣服穿戴者与第一箍和第二弹性箍之间的密封支撑的弹性箍，以扩展所述袖口以提供双重屏障密封。

    Duct cleaning device
    4.
    发明授权
    Duct cleaning device 失效
    管道清洗装置

    公开(公告)号：US5802667A

    公开(公告)日：1998-09-08

    申请号：US711220

    申请日：1996-09-09

    申请人： Mark A. Williams

    发明人： Mark A. Williams

    IPC分类号： A46B13/02 ,  B08B9/04 ,  B08B9/045 ,  F23J3/02 ,  F28G3/04 ,  A47L5/38

    CPC分类号： F28G3/04 ,  A46B13/02 ,  B08B9/0436 ,  B08B9/045 ,  F23J3/026

    摘要： A duct cleaning device, including a flexible conduit with a first, inlet end and a second, outlet end. An end cap with a central hole is attached to the first end; a connector adapted for coupling the device to a vacuum hose (or the inlet of a vacuum cleaner) is attached to the second end. A flexible, radially-projecting brush is attached to the exterior of the conduit, extending helically about the conduit; a plurality of throughholes (some of which carry flexible, radially-projecting tubes) are positioned near the brush. In operation, the device is connected to a source of vacuum. The first end is rotated while being moved into (or removed from) a duct, while the brush sweeps the interior surface of the duct to dislodge particulates of house dust and other contaminants from the surface. The particulates are swept into the conduit through the hole in the end cap and the throughholes in the conduit. The conduit and the brush are flexible, so the device can readily traverse offsets and bends in duct systems without damaging flexible plastic or fiberglass ducts.

    摘要翻译： 管道清洁装置，包括具有第一入口端和第二出口端的柔性管道。 具有中心孔的端盖连接到第一端; 适于将设备耦合到真空软管（或真空吸尘器的入口）的连接器附接到第二端。 柔性的径向伸出的刷子附接到导管的外部，螺旋地围绕导管延伸; 多个通孔（其中一些带有柔性的径向突出的管）位于刷子附近。 在操作中，该装置连接到真空源。 第一端在被移动（或从管道中移除）的同时旋转，同时刷子扫过管道的内表面以从表面移除房屋灰尘和其它污染物的微粒。 颗粒通过端盖中的孔和管道中的通孔扫入导管。 导管和刷子是柔性的，因此该装置可以容易地在管道系统中横穿偏移和弯曲而不损坏柔性塑料或玻璃纤维导管。