Special receptacle or package – Structural features for nesting identical receptacles or... – Having defined means to limit extent of nesting
Patent
1973-04-16
1976-07-27
Lowrance, George E.
Special receptacle or package
Structural features for nesting identical receptacles or...
Having defined means to limit extent of nesting
206520, 229 15B, B65D 2102, B65D 116
Patent
active
039714713
ABSTRACT:
A closely nestable one-piece cup molded from expanded or expandable beads of polystyrene, the cup sidewall having a major portion which extends from a point which is spaced no further from the larger, open end of the cup than the desired stacking space between like cups in a stack thereof and which gradually increases in its thickness and in its angle, relative to the vertical central axis of the cup, as it proceeds inwardly and downwardly toward the bottom of the cup. Also, a mold having spaced apart complementally-shaped concave and convex molding surfaces on molding members that are reciprocatable, relative to one another, into and out of closely spaced apart molding relationship to mold such a cup from expandable or expanded beads.
REFERENCES:
patent: 2805790 (1957-10-01), Smucker
patent: 2988258 (1961-06-01), Witzke
patent: 3298893 (1967-01-01), Allen
patent: 3363820 (1968-01-01), Schilling
patent: 3375954 (1968-04-01), Honkanen
patent: 3485412 (1969-12-01), Hawley
patent: 3820684 (1974-06-01), Harrison
Birchall David R.
Holler Edward J.
Lowrance George E.
Owens--Illinois, Inc.
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