Method and apparatus for making continuous lengths of resin tube

Details Method and apparatus for making continuous lengths of resin tube Method and apparatus for making continuous lengths of resin tube

1972-11-24

1976-03-09

Drummond, Douglas J.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

156244, 156500, 425113, B29D 2304

Patent

active

039432246

ABSTRACT:
Method and apparatus for making resin tubes or pipes, the apparatus comprising a supporting structure having a cylindrical surface and a carrier strip mounted thereon and fed in a plurality of adjacent helical turns to provide a moving cylindrical surface on which the resin articles are formed. Friction reducing means is associated with the interface between the cylindrical supporting surface and the inner surface of the helical turns of the carrier strip. Provision is also made for forming articles by extruding resin material onto the moving cylindrical surface provided by the helical turns of the carrier strip.

REFERENCES:
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patent: 3155559 (1964-11-01), Hall
patent: 3271064 (1966-09-01), Hall
patent: 3399095 (1968-08-01), Hyland, Jr.
patent: 3464879 (1969-09-01), Poulsen
patent: 3486196 (1969-12-01), Klenk et al.
patent: 3533883 (1970-10-01), Gartaganis et al.
patent: 3548724 (1970-12-01), Hall
patent: 3616072 (1971-10-01), Bostrom
patent: 3625791 (1971-12-01), Lee et al.
patent: 3655489 (1972-04-01), Poulsen
patent: 3679521 (1972-07-01), Poulsen
patent: 3684607 (1972-08-01), Morris et al.
patent: 3749624 (1973-07-01), Lee et al.
patent: R25457 (1963-10-01), Lewis et al.

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