Electric handhole/pullbox access cover
    1.
    发明授权
    Electric handhole/pullbox access cover 失效
    电动手孔/拉杆箱检修盖

    公开(公告)号:US07361834B1

    公开(公告)日:2008-04-22

    申请号:US11672128

    申请日:2007-02-07

    CPC classification number: H02G9/10 H02G3/14 H02G9/02

    Abstract: A lightweight plastic cover for an electric handhole or pullbox having a plurality of vertical channels in a circular array at a radius about halfway from the center to the circumference. The channels allow the cover to bend when a large weight is applied and to rebound when the weight is removed. The cover may also have a second circle of vertical channels for strength nearer the center and horizontal channels crossing the center for added strength. The cover has a metal plate attached in the center for finding the cover with a metal detector and may also have a GPS device for locating it. The electric handhole or pullbox may have an open bottom portion with a ledge around the circumference for helping to set and maintain the electric handhole or pullbox at a desired depth. The cover may have extendable handles for ease of holding.

    Abstract translation: 一种用于电动手孔或拉杆的轻质塑料盖,其具有圆形阵列中的多个垂直通道,半径约为中心至圆周的半径。 通道允许盖子在施加较大的重量时弯曲并且当重量被移除时回弹。 盖子还可以具有第二个垂直通道,用于靠近中心的水平通道,并且横穿中心以增加强度。 该盖具有附接在中心的金属板,用金属检测器找到盖,并且还可以具有用于定位盖的GPS装置。 电动手孔或牵引箱可以具有敞开的底部部分,其周边具有凸缘,用于帮助将电动手孔或拉杆设置并保持在期望的深度。 盖可以具有可伸长的手柄以便于握持。

    Preparation of latices
    3.
    发明授权
    Preparation of latices 失效
    制作胶乳

    公开(公告)号:US4812550A

    公开(公告)日:1989-03-14

    申请号:US31976

    申请日:1987-03-30

    CPC classification number: D21H19/50 C08F289/00

    Abstract: Continuous ultrasonic irradiation during the free radical aqueous graft or over copolymerization of an unsaturated monomer on a protein provides a latex of reduced viscosity and increased solids content.

    Abstract translation: 在自由基水性接枝物中的连续超声波照射或不均匀单体在蛋白质上的过度共聚反应提供了粘度降低和固体含量增加的胶乳。

    Method for making latices
    7.
    发明授权
    Method for making latices 失效
    制作胶乳的方法

    公开(公告)号:US4806610A

    公开(公告)日:1989-02-21

    申请号:US49893

    申请日:1987-05-15

    CPC classification number: D21H19/50 C08F289/00

    Abstract: Continuous homogenization during the free radical aqueous graft or over copolymerization of an unsaturated monomer on a protein provides a latex of reduced viscosity.

    Abstract translation: 在自由基水性接枝物中的连续匀化或不饱和单体在蛋白质上的过度共聚反应提供了降低粘度的胶乳。

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