End closure for stackable frozen food containers

Details End closure for stackable frozen food containers End closure for stackable frozen food containers

1981-03-30

1982-12-14

Lowrance, George E.

Special receptacle or package

Structural features for vertical stacking, i.e., similar...

Closure structure specified for stacking

206509, 220 66, 229 55, 229 56, B65D 2102, B65D 314

Patent

active

043634044

ABSTRACT:
An end closure member is disclosed for closing the bottom of an institutional-size composite container for frozen liquid or fluent materials (such as eggs removed from the shell), characterized in that the end closure member includes a center panel portion, an annular rim portion, and a vertical intermediate tubular portion that connects the center panel portion with, and at a lower elevation than, the rim portion, whereby during the subsequent freezing of the product within the container, the freezing progresses upwardly from the central panel portion, thereby relieving stress on the connection between the bottom end member and the composite body wall. The bottom end closure member includes a stacking rib adapted for insertion within a corresponding stacking recess contained within the container upper closure member.

REFERENCES:
patent: 2012213 (1935-08-01), Young
patent: 2290749 (1942-07-01), Hildebrandt
patent: 2350312 (1944-05-01), Hatch
patent: 3288342 (1966-11-01), Tinker
patent: 3409167 (1968-11-01), Blanchard
patent: 3429475 (1969-02-01), Scholtz
patent: 3492773 (1970-02-01), Bergstrom
patent: 3933298 (1976-01-01), Elderbrock
patent: 3954178 (1976-05-01), Mason
patent: 4051954 (1977-10-01), Smith

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