Apparatus for blow molding

Details Apparatus for blow molding Apparatus for blow molding

1979-01-09

1980-11-18

Silbaugh, Jan H.

Plastic article or earthenware shaping or treating: apparatus

Means applying electrical or wave energy directly to work

Radiated energy

425526, B29C 1707

Patent

active

042342970

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: 3972127 (1976-08-01), Hoshi et al.
patent: 3975618 (1976-08-01), Goos et al.
patent: 4076071 (1978-02-01), Rosenkranz et al.
patent: 4079104 (1978-03-01), Dickson et al.

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