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20 条记录 (耗时 0.012 秒)

    Vacuum pickup apparatus
    1.
    发明授权
    Vacuum pickup apparatus 失效
    真空吸盘装置

    公开(公告)号：US3618297A

    公开(公告)日：1971-11-09

    申请号：US3618297D

    申请日：1969-07-22

    申请人： JET LINE PRODUCTS INC

    发明人： HAMRICK JAMES C

    IPC分类号： A47L7/00 ,  B01D50/00

    CPC分类号： A47L7/0047 ,  Y10S55/03

    摘要： A VACUUM PICKUP APPARATUS IN WHICH A STREAM OF AIR AND ENTRAINED MATERIAL FLOWING INTO AN EXPANSION AND MATERIAL COLLECTION CHAMBER STRIKES A CONCAVE SURFACE FLOW OBSTRUCTION AND IS DIVIDED INTO TWO PORTIONS DIRECTED ON OPPOSITELY TURNING COURSES OF FLOW FOR DISSIPATION OF THE KINETIC ENERGY OF THE INFLOWNG AIR AND ENTRAINED MATERIAL BY IMPINGEMENT OF THE PORTIONS FIRST AGAINST THE OBSTRUCTION AND THEN AGAINST EACH OTHER WITHIN THE CHAMBER. THE CAPACITY OF THE MATERIAL COLLECTION CHAMBER MAY BE VARIED BY SELECTIVE ARRANGEMENT AND INTERCONNECTION OF THREE HOUSING MEMBERS INCLUDED IN THE VACUUM PICKUP APPARATUS.

    Fish tape
    7.
    发明授权
    Fish tape 失效
    鱼带

    公开(公告)号：US3858848A

    公开(公告)日：1975-01-07

    申请号：US35480573

    申请日：1973-04-26

    申请人： JET LINE PRODUCTS INC

    发明人： MACFETRICH ROBERT H

    IPC分类号： H02G1/08 ,  E21C29/16

    CPC分类号： H02G1/081 ,  Y10T279/17863 ,  Y10T403/4354 ,  Y10T403/4908 ,  Y10T403/4924

    摘要： The present invention provides a fish tape for drawing electric wires into conduits and the like The body of the fish tape comprises a unitary sheath or jacket of plastic, such as polyethylene, extruded onto a small diameter central core of fine stranded polyester fibers. The core has great strength in tension but lacks the necessary resistance to erosion, the necessary stiffness characteristics and resistance to external influences and stresses to constitute a fish tape. The sheath provides wear resisting and anti-friction qualities which the core of itself lacks, and provides along with the core a selected or predetermined degree of stiffness or controlled flexibility for threading the tape through a conduit. The means employed on one end-to apply tension for pulling the tape and attached conductoris provided by an integral loop which in case of breakage or other injury is renewable. The loop is integral with one end of the tape. A means for renewably bonding a head or pulling eye to the front end of the composite body of the tape is provided by a small diameter coupling which has an eye at the forward end of the tape for hitching thereto the conductor to be pulled through the conduit. Both the connection of the pulling eye to the front end of the body of the tape and the connection of the loop to the rear end of the body of the tape are renewable with simple tools and simple manipulation. This makes possible a long useful life, not possessed to the same degree by any known non-metallic fish tape.

    摘要翻译： 本发明提供了一种用于将电线拉入导管等的鱼带。鱼带的主体包括一整体的鞘或聚乙烯塑料夹套，挤压到小直径的细绞聚酯纤维的中心芯上。 该芯具有很强的张力，但缺乏必要的抗侵蚀性，必要的刚度特性和抵抗外部影响和应力构成鱼带。 护套提供了耐磨性和抗摩擦性质，其本身的芯部缺乏，并且与芯一起提供了选定的或预定的刚度或受控的柔性，用于将带穿过导管。 在一端采用的方法 - 拉伸带子和连接的导体施加张力 - 由整体回路提供，在断裂或其他损伤的情况下可再生。 环路与磁带的一端是一体的。 一种用于将头部或拉眼可再生地粘合到带的复合体的前端的装置由小直径联接器提供，该小直径联接器在带的前端具有眼睛，用于与其相连以将导体拉动通过导管 。 牵引眼与带的主体的前端的连接以及环与带的主体的后端的连接都可以用简单的工具和简单的操作来再现。 这使得可能长的使用寿命，通过任何已知的非金属鱼带不具有相同的程度。