One piece safety cap molding apparatus and method

Details One piece safety cap molding apparatus and method One piece safety cap molding apparatus and method

1989-09-05

1991-10-01

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264334, 425438, 425DIG58, 249 63, 249 68, 249144, B29C 3348

Patent

active

050531824

ABSTRACT:
An apparatus for molding a cap (16) including a base portion (18) and peripheral skirt (20) extending axially from and about the base portion (18) includes an outer surface forming mold (44) for forming an outer surface of the base portion (18) and the peripheral skirt (20) and an inner surface forming mold (46) seatable within the outer surface forming mold (44) for forming an inner surface of the base portion (18) and the peripheral skirt (20). The outer surface forming mold (44) is retractable from seated engagement with inner surface forming mold (46) for exposing the molded cap (16) therebetween. The inner surface forming mold (46) includes a core portion (52) and lug forming mold portions (54) disposed radially peripherally thereabout, the lug forming mold portions (54) being able to project axially from and retract radially inwardly relative to the central core portions (52) for releasing and ejecting the molded cap (16) from the inner surface forming mold (46).

REFERENCES:
patent: 3618170 (1971-11-01), Owens
patent: 4019711 (1977-04-01), Altenhof et al.

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