Apparatus for making a partitioned container

Details Apparatus for making a partitioned container Apparatus for making a partitioned container

1973-08-30

1976-08-31

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Dough divider type including trap chamber

Rotating trap chamber pickup

249107, 425441, B29F 100, B29F 114

Patent

active

039778215

ABSTRACT:
Apparatus is disclosed for injection molding a partitioned container having four sidewalls, an open top and a closed bottom. Thermoplastic material from a primary sprue flows through a runner system to inlet gates disposed to open into the mold cavity in a generally common plane lying at about the open top of the container to be molded and along opposed container sidewalls intermediate adjacent partition walls. Two mold structures are disclosed. A preferred mold comprises four block members defining, in a closed position, a hollow cavity corresponding to the exterior container dimensions but movable outwardly to an open position. A plurality of spaced core members are movable into and out of the hollow cavity to, respectively, define the container mold and permit ejection of the molded container therefrom. Other apparatus features are disclosed.

REFERENCES:
patent: 1865464 (1932-07-01), Geyer
patent: 2789313 (1957-04-01), Knowles
patent: 2799435 (1957-07-01), Abplanalp
patent: 3309451 (1967-03-01), Holtzman
patent: 3473197 (1969-10-01), Wilds et al.
patent: 3509603 (1970-05-01), Halsall
patent: 3564660 (1971-02-01), Darnell
patent: 3568973 (1971-03-01), Rau et al.
patent: 3585690 (1971-06-01), Tucker

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