Special receptacle or package – Structural features for nesting identical receptacles or... – Having defined means to limit extent of nesting
Patent
1976-05-06
1980-04-15
Lowrance, George E.
Special receptacle or package
Structural features for nesting identical receptacles or...
Having defined means to limit extent of nesting
229 15B, 229 48T, B65D 2102
Patent
active
041979486
ABSTRACT:
A fabricated cup or nestable container having a unitary sidewall formed from a double-ended sheet of a heat-shrinkable thermoplastic material, the inner suface of which is adapted to contact a liquid product to be contained in said container. The ends of the sheet are joined to one another forming a liquid-tight seam extending from the top to the bottom of said container. An open mouth at the top is defined by the upper portion of the sidewall. The container sidewall tapers inwardly and downwardly from the open mouth for a major portion of the height of said container. The thickness of the sidewall increases continuously and progressively over this major portion from a lesser thickness at the top thereof to a greater thickness at the bottom thereof. The density of the sidewall continuously and progressively decreases over this major portion from a greater density at the top thereof to a lesser density at the bottom thereof. A separate bottom closure may be joined in a liquid-tight manner to the lower end of the container sidewall to form a two-piece container. Alternately, a bottom closure may be formed from an integral extension of the sidewall by shrinking and sealing the extension to produce a one-piece cup.
REFERENCES:
patent: 2969901 (1961-01-01), Behrens
patent: 3027044 (1962-03-01), Winstead
patent: 3104045 (1963-09-01), Bruschini
patent: 3322318 (1967-05-01), Felton
patent: 3363820 (1968-01-01), Schilling
patent: 3375954 (1968-02-01), Honkanen
patent: 3468467 (1969-09-01), Amberg
patent: 3664568 (1972-05-01), MacDaniel
patent: 3703255 (1972-11-01), Wade
patent: 3820684 (1974-06-01), Harrison
patent: 3836063 (1974-09-01), Sutch
patent: 3931378 (1976-01-01), Goehring
patent: 3931380 (1976-01-01), Behuakici
Amberg Stephen W.
Doherty Thomas E.
Click M. E.
Lowrance George E.
Mensing Harold F.
Owens--Illinois, Inc.
Wilson D. H.
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