Method of making irrigation conduits

Details Method of making irrigation conduits Method of making irrigation conduits

1975-12-15

1976-11-02

Drummond, Douglas J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156271, 156272, 156290, 156302, 61 12, B32B 3100, B29C 1902

Patent

active

039895726

ABSTRACT:
A method for making irrigation conduits comprises the steps of perforating a first sheet of plastic film by repetitively forming rows of holes in the cross-machine direction, positioning a fabric strip over the holes, positioning a second sheet of plastic film under the first, sealing the fabric strips and the sheets of plastic film together by forming a plurality of fused seals running in the machine direction, and slitting the seals lengthwise to separate the resulting conduits.

REFERENCES:
patent: 3269278 (1966-08-01), Olstad
patent: 3594261 (1971-07-01), Broerman
patent: 3790744 (1974-02-01), Bowen
patent: 3830067 (1974-08-01), Osborn

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