公开(公告)号：EP1034339A1

公开(公告)日：2000-09-13

申请号：EP98958431.3

申请日：1998-11-26

申请人： Elofsson, Birger

发明人： Elofsson, Birger

IPC分类号： E03F5/16

CPC分类号： E03F5/16

摘要： Filter cassette (1) adapted to be sealingly mounted against the inner wall of a well or a well cover so as to extend radially across the cross section of the well, comprising a ring-shaped space to be filled or refilled with an absorbing or active additive and a lid (5) extended radially from the area of the inner wall of the well towards a central hole (7), and an opened bottom (11), the filter cassette having a capacity to receive water streaming down that increases gradually in the radial direction mentioned and comprising a lid with a top surface, as seen in a radial direction from the periphery to the centre of the lid, which rises gradually over a horizontal plane on which the lid rests.

公开(公告)号：EP0769087A1

公开(公告)日：1997-04-23

申请号：EP95926084.0

申请日：1995-07-12

申请人： Elofsson, Birger

发明人： Elofsson, Birger

IPC分类号： C02F1 ,  E03F5

CPC分类号： C02F1/66 ,  E03F5/18

摘要： A cassette device is disclosed for contribution of neutralizing material into, for example, a surface water flow. The cassette is then intended to be inserted into existing surface water ducts or wells, and comprises an outer, circular, slightly conical wall (2) and an inner circular wall (1) forming a space (5) between the outer and inner circular walls. The space (5) is to be filled with neutralizing material like lime, crushed lime-stone and/or crushed dolomite and/or the like. The cassette is further provided with refill openings (3) to form an exchangeable reusable cassette. Additionally the cassette exhibits inlet orifices (7a) at the inner stepped wall (1) which lead into the space (5), while an outlet from the space (5) takes place through holes (7b) at a bottom rim or ring between the outer and inner walls, whereby the device additionally has a large central opening to handle large flows of fluid.

公开(公告)号：EP0769087B1

公开(公告)日：2002-02-27

申请号：EP95926084.5

申请日：1995-07-12

申请人： Elofsson, Birger

发明人： Elofsson, Birger

IPC分类号： E03F5/18 ,  C02F1/66

CPC分类号： C02F1/66 ,  E03F5/18

摘要： A cassette device is disclosed for contribution of neutralizing material into, for example, a surface water flow. The cassette is then intended to be inserted into existing surface water ducts or wells, and comprises an outer, circular, slightly conical wall (2) and an inner circular wall (1) forming a space (5) between the outer and inner circular walls. The space (5) is to be filled with neutralizing material like lime, crushed lime-stone and/or crushed dolomite and/or the like. The cassette is further provided with refill openings (3) to form an exchangeable reusable cassette. Additionally the cassette exhibits inlet orifices (7a) at the inner stepped wall (1) which lead into the space (5), while an outlet from the space (5) takes place through holes (7b) at a bottom rim or ring between the outer and inner walls, whereby the device additionally has a large central opening to handle large flows of fluid.

摘要翻译： 公开了一种用于将中和材料贡献到例如地表水流中的盒装置。 然后将盒子插入现有的地表水导管或井中，并且包括在外部圆形壁和内部圆形壁之间形成空间（5）的外部圆形略圆锥形壁（2）和内部圆形壁（1） 。 空间（5）应填充有中和材料，如石灰，碎石灰石和/或粉碎的白云石和/或类似物。 该盒还设置有补充开口（3）以形成可更换的可重复使用的盒。 此外，盒子在通向空间（5）的内部阶梯壁（1）处具有入口孔（7a），而空间（5）的出口通过孔（7b）在底部边缘或环 外壁和内壁，由此该装置另外具有大的中央开口以处理大流量的流体。