Method for manufacturing a plastic container with non-coring pen

Details Method for manufacturing a plastic container with non-coring pen Method for manufacturing a plastic container with non-coring pen

1981-10-13

1983-12-06

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

215 1C, 264525, 264537, 425525, B29C 1707

Patent

active

044193238

ABSTRACT:
A plastic blow-molded container is disclosed having a penetrable wall portion or site which is sufficiently thin to permit piercing by a needle, spike or the like without coring or fragmenting, and a thicker recessed wall portion adjacent to the penetrable portion. The penetrable portion is formed during the blow-molding process by expanding the plastic parison over a projection in the mold cavity and into an adjacent recess in the cavity. The thin penetrable portion of the container is formed within the mold recess and the thicker recessed portion of the container is formed by the mold projection.

REFERENCES:
patent: 3343699 (1967-09-01), Nicko
patent: 3851029 (1974-11-01), Cornett et al.
patent: 3977555 (1976-08-01), Larson
patent: 4113129 (1978-09-01), Cambio, Jr.
patent: 4172534 (1979-10-01), Cambio
patent: 4178976 (1979-12-01), Weiler et al.
patent: 4234095 (1980-11-01), Safianoff

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