Method for blow molding

Details Method for blow molding Method for blow molding

1978-03-14

1980-09-23

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264521, 264535, 425526, B29C 1707

Patent

active

042242630

ABSTRACT:
Method and apparatus for blow molding plastic articles from preformed parisons by reheating the parisons and then stretching and blowing them. The parisons are conveyed in series to a plurality of fixed heating stations at which the parisons are fixedly positioned for heating, the parisons being rotated for uniform heating. The heating is enhanced by blowing air under pressure through a tunnel enclosing the successive heating stations. Finally, the parison is stretched and blown at a blow station in a blow mold of unique design.

REFERENCES:
patent: 2792593 (1957-05-01), Hardgrove, Jr.
patent: 3003409 (1961-10-01), Mills
patent: 3283046 (1966-11-01), Dewitt et al.
patent: 3761550 (1973-09-01), Seefluth
patent: 3787170 (1974-01-01), Gilbert
patent: 3972127 (1976-08-01), Hoshi et al.
patent: 3975618 (1976-08-01), Goos et al.
patent: 4079104 (1978-03-01), Dickson et al.

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