Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With bending – folding – winding – or wrapping means
Patent
1978-09-27
1981-01-20
Dixon, Jr., William R.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With bending, folding, winding, or wrapping means
156204, 156227, 156290, 156553, 156581, B31F 134, B32B 3100
Patent
active
042460611
ABSTRACT:
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 neighboring 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.
REFERENCES:
patent: 2610934 (1952-09-01), Steele
patent: 2993525 (1961-07-01), Lincoln
patent: 3770549 (1973-11-01), Carbone
patent: 4081305 (1978-03-01), Patin
Dixon Jr. William R.
Nordifa Industritextillier AB
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