Permeable flexible plastic tubing

Details Permeable flexible plastic tubing Permeable flexible plastic tubing

1973-04-23

1976-02-24

Queisser, Richard C.

Pipes and tubular conduits

Miscellaneous

61 12, 138125, 239145, F16L 1112, E02B 1300

Patent

active

039398757

ABSTRACT:
Flexible tubing, particularly suitable for irrigation purposes, consists of a plurality of superposed, elongated, flexible strips, heat sealed along their longitudinal edges and is substantially flat when empty. At least one of said strips is thermoplastic and at least one has a permeable, fibrous structure and is preferably formed from a non-woven fabric such as spun-bonded polyethylene fiber.

REFERENCES:
patent: 31614 (1861-03-01), Mayall
patent: 1989427 (1935-01-01), Robey
patent: 2522346 (1950-09-01), Carson et al.
patent: 2807505 (1957-09-01), Weitzel
patent: 3080124 (1963-03-01), Rathmann
patent: 3362862 (1968-01-01), King
patent: 3442740 (1969-05-01), David
patent: 3468130 (1969-09-01), Gibson
patent: 3538912 (1970-11-01), Becker
patent: 3698195 (1972-10-01), Chapin
patent: 3830067 (1974-08-01), Osborn et al.

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