Method for manufacturing a sector-shaped filter element
The method involves forming a metal corrugated sheet (1), such that one end side (3) is stretched out wider than other end side (2). Several longitudinal edges (4) are provided in metal corrugated sheet. The ribs are made to diverge from the short end side in a fan structure towards the wider end si...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | The method involves forming a metal corrugated sheet (1), such that one end side (3) is stretched out wider than other end side (2). Several longitudinal edges (4) are provided in metal corrugated sheet. The ribs are made to diverge from the short end side in a fan structure towards the wider end side. The shaped sheet is held in a frame having identical longitudinal sides (9c), and a short frame section (9a) and a longer end frame section (9b). An independent claim is included for sector-shaped filter unit. |
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