| 摘要 |
1278776 Separators for membrane packs WILLIAM BOBY & CO Ltd 11 June 1969 [5 July 1968] 32281/68 Heading B1X [Also in Division C7] A separator unit for a membrane pack comprises a piece of sheet material in the form of a mesh 11 and a gasket 12 which is of a material embedded in the peripheral area of the mesh. The mesh 11 may be an extruded mesh, a woven material, a corrugated and perforated plastics sheet, an expanded plastics sheet, or a sintered sheet of metal, glass or plastics particles. The gasket material may be of polyurethane, pitch rubber &c. and may be applied to the mesh by immersion, pouring or coating and allowed to set following the application of pressure. Port pieces 15, 16 are located in holes 20, 22 cut in the unit and are set into the gasket. Further holes 19, 21 are also formed. A strip of material (23), Fig. 2 (not shown) may be applied to the mesh to control the extent of penetration by the gasketforming material. |
