Mold for producing extra thin walled plastic containers

Details Mold for producing extra thin walled plastic containers Mold for producing extra thin walled plastic containers

1979-06-25

1981-06-09

Silbaugh, Jan H.

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

With heating or cooling means

264520, 264536, 425522, 425806, B29C 1707

Patent

active

042722330

ABSTRACT:
In the manufacture of extra thin walled plastic containers the tail flash formed during the molding operation is spaced from the container proper by molding one or more standoff projections into the flash. This maintains the tail flash in an appropriate relationship relative to the container until it can be severed by a shearing mechanism. The projections are formed in the tail flash by providing male and female projection elements in the mold. In the absence of such standoffs, the tail flash will come in contact with the container while still sufficiently hot enough to adhere thereto.

REFERENCES:
patent: 3499071 (1970-03-01), Hurst
patent: 3687593 (1972-08-01), Gilbert
patent: 3692453 (1972-09-01), Quigg
patent: 3758654 (1973-09-01), Martino

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