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    • 1. 发明授权
    • Method and apparatus for screening guttering
    • 筛选方法和装置
    • US06938379B2
    • 2005-09-06
    • US10104253
    • 2002-03-22
    • Paul Anthony Groom
    • Paul Anthony Groom
    • E04D13/076E04D13/00
    • E04D13/076
    • A sheet mesh of plastics material for application to roof guttering to prevent the entry of unwanted materials into the guttering. In use the mesh is affixed along one edge to the roof and along the opposite edge (46) to the top outside edge of the guttering. The mesh comprises a first array of parallel strands (42) aligned in a first direction integrally moulded with a second array of parallel strands (44) aligned substantially at right angles to the first array. The strands (44) in the second array are made from a stiffer material than that from which the strands in the first array (42) are made. The mesh is preferably manufactured as a co-extrusion of LDPE-rich and HDPE-rich materials.
    • 适用于屋顶沟槽的塑料材料板材,以防止不需要的材料进入排水沟。 在使用中,网格沿着一个边缘固定到屋顶,并沿着相对边缘(46)固定到排水沟的顶部外边缘。 所述网状物包括平行线股(42)的第一阵列,所述平行线股(42)与第一方向对齐,所述第一方向与第二阵列的平行股线(44)整体模制,所述平行股线基本上与所述第一阵列成直 第二阵列中的股线(44)由比第一阵列(42)中的股线制成的更硬的材料制成。 该网优选地制造为富含LDPE的富含HDPE的材料的共挤出物。
    • 4. 发明授权
    • Screening of guttering
    • 筛选排水
    • US06393770B1
    • 2002-05-28
    • US09711872
    • 2000-11-13
    • Paul Anthony Groom
    • Paul Anthony Groom
    • E04D1300
    • E04D13/076
    • A screen applied to overlay a guttering (14) on an outside edge of a roof of a building to prevent the entry of unwanted materials such as leaves into the guttering. The screen has a panel (15) of mesh affixed along one of its edges to the roof and along the opposite edge to the top outside edge of the guttering (14). The mesh is formed of moulded plastics material and comprises a top face (38) and a bottom face (40), a first array of longitudinal strands aligned in the direction of the edge of the panel, and a second array of lateral strands, integrally moulded with and aligned at right angles to the first array. The arrays define mesh apertures therebetween extending from said top face to said bottom face. The thickness of the longitudinal strands extends for substantially the full thickness of the mesh while the thickness of the lateral strands extends along their full length, from said top face to less than 80% of the thickness of the mesh. The lateral strands are spaced closer to each other than are the longitudinal strands and the apertures have an oval shape with their longer axis parallel to the lateral strands.
    • 一种应用于在建筑物屋顶的外侧边缘上覆盖沟槽(14)的屏幕,以防止诸如叶子之类的不需要的材料进入沟槽。 屏幕具有一个网格面板(15),其沿其一个边缘固定到屋顶,并且沿着与沟槽(14)的顶部外边缘相对的边缘。 网格由模制塑料材料形成,包括顶面(38)和底面(40),沿面板边缘方向排列的纵向股线的第一阵列和横向股线的第二阵列 与第一阵列成直角并成对准。 阵列限定了从所述顶面延伸到所述底面的网孔。 纵向股线的厚度基本上延伸到网格的整个厚度,同时横向股线的厚度沿其全长从所述顶面延伸到小于网的厚度的80%。 横向股线比纵向股线更靠近彼此间隔开,并且所述开口具有椭圆形形状,其长轴平行于侧向股线。