Apparatus and method for producing flexible plastic tubing

Details Apparatus and method for producing flexible plastic tubing Apparatus and method for producing flexible plastic tubing

1975-07-11

1977-08-23

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156428, 156429, B31C 100

Patent

active

040438562

ABSTRACT:
An improved apparatus for producing a flexible plastic corrugated tubing includes a pair of relatively short, slender rotating mandrels extending substantially parallel to one another and separated along a vertical plane and around which a continuous ribbon of molten plastic is spirally wrapped to form the tubing. In another embodiment, a plurality of elongated rollers spaced apart axially form a tunnel therebetween through which the tubing is directed from the mandrel at least one of the rollers being rotatably driven to drive the tubing through the tunnel.

REFERENCES:
patent: 2321738 (1943-06-01), Farny
patent: 2516864 (1950-08-01), Gilmore et al.
patent: 2994104 (1961-08-01), Mittag
patent: 3173822 (1965-03-01), Rigaut
patent: 3271064 (1966-09-01), Hall
patent: 3706624 (1972-12-01), Rinker
patent: 3740294 (1973-06-01), Wienand et al.
patent: 3793938 (1974-02-01), Haass
patent: 3890181 (1975-06-01), Stent et al.
patent: 3910808 (1975-10-01), Steward

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