Method and a machine for manufacturing multi-tube filters

Details Method and a machine for manufacturing multi-tube filters Method and a machine for manufacturing multi-tube filters

B - Operations, Transporting

23

P

26/160

B23P 15/00 (2006.01) B01D 46/02 (2006.01)

Patent

CA 1095223

Abstract of the Disclosure A method and a machine for manufacturing multi-tube filters. The filter is manufactured from a continuous material web which is folded in zigzag, one layer upon the other, the length of the respective layer corresponding to the desired length of the filter tubes. During the folding of each layer, said layer is joined to the layer below by parallel, lengthwise seams, whereby rows of contiguous filter tubes are formed and neighboring rows of filter tubes are joined together. The seams that delimit the respective tubes in a row of filter tubes are positioned in alignment with the corresponding seams in all the other rows of filter tubes and the seams that join together neighbouring rows are positioned right between said tube-forming seams. The interconnected layers form, when the filter unit is extended in a direction at right angles to the layers, a filter unit comprising a plurality of tubes that are essentially square in cross-section.

312670

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