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    • 5. 发明授权
    • Flexible tubing structure
    • 柔性管结构
    • US3566002A
    • 1971-02-23
    • US3566002D
    • 1968-04-12
    • KENARD D BROWN
    • BROWN KENARD D
    • F16L11/115F16L11/127F16L11/12
    • F16L11/115F16L11/127
    • A flexible tubing for various industrial purposes including the transmission of fluids under pressure and the protection of the circular cross section from distortion due to external forces, both lateral and longitudinal. The tubing comprises a thin-walled central tube of smooth material, and a strip or ribbon of thin flexible material of high tensile strength wrapped longitudinally about the tube with its edges overlapping; the strip is held in tight face engagement with the tube and the overlapping edges with each other by a helical reinforcing wire having a plastic coating and wrapped securely about the tubing with adjacent turns in engagement with one another. The wrapping conforms closely to the tube does not tend to spring away therefrom and thus holds the strip securely in engagement with the tube during bending thereof. A second elongated strip with overlapping edges and a second helical wrapping may be provided for further reinforcement and by making the strips of electrical conducting material or providing conducting layers on the strips the wires and strips may be used as conductors in an electric signalling system to assure detection of damage to the tubing.
    • 10. 发明授权
    • Liquid sweeping system employing helical conveyor method and apparatus
    • 采用螺旋输送机方法和装置的液体扫描系统
    • US3618768A
    • 1971-11-09
    • US3618768D
    • 1970-05-08
    • KENARD D BROWN
    • BROWN KENARD D
    • E02B15/04B01D21/06
    • E02B15/105Y10S210/923
    • A method and system for removing light fluid such as oil from heavy fluids such as water comprises an extended length of open screw conveyor constructed of material such that it will float on water. The conveyor may comprise a helical fin having a central bead or core about which stranded cables are wound, the stranded cables may be of steel wire or plastic and when the conveyor is required to float on water, plastic materials are employed for all parts of the conveyor. The conveyor is connected to two spaced motor vessels one end being pivotally connected to one of the vessels for free rotation and the other end passing up into the other vessel through a surrounding conduit and being rotated by a motor mounted on the other vessel. A reservoir is provided in the other vessel to collect the liquid. During operation the cable is rotated in a direction to draw the liquid toward the reservoir vessel and the two vessels are moved forward to sweep an area covered with oil or other lighter fluid. In another embodiment the flexible helical drive member is housed in a flexible tubing having a longitudinal opening for admitting the lighter liquid from the surface of the body of heavy liquid, the entire assembly thus formed floats on the body of liquid.