Metal mold for molding hollow article having inwardly tapered si

Details Metal mold for molding hollow article having inwardly tapered si Metal mold for molding hollow article having inwardly tapered si

1981-02-24

1982-12-07

Flint, Jr., J. Howard

Static molds

Container-type molding device

And an inner removable core to form recess or opening

249 63, 249178, 249184, 249180, 425438, 425441, 425577, 425403, 425DIG5, 425DIG58, B29C 106, B29C 116

Patent

active

043622917

ABSTRACT:
In a metal mold for molding a hollow product having inwardly tapered side wall with a stationary die plate for forming a bottom portion of the product, a core, and a cavity plate surrounding the core, the core has a truncated pyramid shape and first and second slide cores are provided between the core and the cavity plate. The core and slide cores are constructed such that at the time of opening the mold both slide cores are moved inwardly in an interlocked relation with retractive movement of the core thus leaving one end of the molded product for enabling removal thereof.

REFERENCES:
patent: 2676372 (1954-04-01), Venner et al.
patent: 3339242 (1967-09-01), Lamb
patent: 3373460 (1968-03-01), Ladney
patent: 3865529 (1975-02-01), Guzzo
patent: 3905740 (1975-09-01), Lovejoy
patent: 4019711 (1977-04-01), Altenhof et al.
patent: 4286766 (1981-09-01), Von Holdt

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