Internally locked core centering mold assembly

Details Internally locked core centering mold assembly Internally locked core centering mold assembly

1979-12-31

1981-07-14

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

Mold having movable core or movable pin

425468, 425DIG5, B29C 106, B29F 1022

Patent

active

042784174

ABSTRACT:
A mold assembly is described for molding smooth-bottomed battery cases in which the necessary compression locking of the free ends of the elongated cantilever mounted cores is achieved by providing transverse locking pins which are carried within, and actuated to extend from, the interior of the cores themselves. Since no locking pins extend from the cavity, the interior surface of the base wall of the battery case is formed relatively smooth and flat.

REFERENCES:
patent: 2301338 (1942-11-01), Smith
patent: 2542263 (1951-02-01), Schultz
patent: 2822578 (1958-02-01), Lobell
patent: 3060509 (1962-10-01), McCubbins
patent: 3473197 (1969-10-01), Wilds et al.
patent: 3564468 (1971-02-01), Darnell
patent: 3767156 (1973-10-01), Sullivan et al.

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