Special receptacle or package – Structural features for nesting identical receptacles or... – Having defined means to limit extent of nesting
Patent
1987-03-06
1989-04-04
Lowrance, George E.
Special receptacle or package
Structural features for nesting identical receptacles or...
Having defined means to limit extent of nesting
206499, 206508, 220380, B65D 2102, B65D 8562
Patent
active
048178012
ABSTRACT:
A two-piece package for paper baking cups of conventional manufacture includes a plastic container having a base provided by a planar annular section with outer circumference and a recessed, circular inner portion and a shaped sidewall extending generally axially from the base outer circumference. The planar annular section which is at least 1/8 and preferably about 1/4 inch in radial width strengthens the base. The sidewall includes a first frustoconical portion having a height 80% or less and preferably 2/3 or less than the nominal height of paper baking cups received in the container. The sidewall further includes a circumferential lip at the mouth. A cover is provided with a plurality of regularly spaced indentations which are sharply radiused to mechanically engage with the lip of the container. Both the container and cover are provided with denesting structures for automated handling.
REFERENCES:
patent: D125058 (1941-02-01), Ratner
patent: D206358 (1966-11-01), Griese
patent: D214749 (1969-07-01), Ferrara
patent: D247548 (1978-03-01), Crary
patent: 2350950 (1944-06-01), Wiley
patent: 3094240 (1963-06-01), Wanderen
patent: 3353708 (1967-11-01), Davis
patent: 3362575 (1968-09-01), Fotos
patent: 3520441 (1970-07-01), Fitzergerald
patent: 3648888 (1972-03-01), Cheladze
patent: 3724710 (1973-04-01), Davis
patent: 3967731 (1976-07-01), Boduch
patent: 4275815 (1981-06-01), Davis
patent: 4421244 (1983-12-01), Van Melle
Baking cup container, Fluted Paper Products DRW C-5722; and Baking cup container, Fluted Paper Products DRW C-5723.
Libbey Glassware brochure (12PP) 7/73, L-2140.
One photograph of two prior art plastic packaging containers for baking cups.
Lowrance George E.
Reynolds Metals Company
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