B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 43/02 (2006.01)
Patent
CA 2127310
ABSTRACT OF THE DISCLOSURE A beverage cup lid is disclosed that comprises a circular closure panel, circumscribed by a side wall that terminates in a resilient, restricted diameteredge for capturing a brim of a beverage cup, and a frustro-conical skirt connected around the restricted diameter edge for increasing the hoop strength of the edge, and an extended diameter flange circumscribing the free edge of the skirt for further increasing the hoop strength of the restricted diameter edge such that the edge retains the brim with a force of at least 1 pound. The invention is particularly applicable to beverage cup lids formed by a plastic web machine that applies heat to only those areas that are deformed into structural components on the lid (such as the side wall, restricted diameter edge, and skirt), and which consequently results in some, amount of wall thinning in the skirt, and hence some reduction in the hoop strength that the skirt gives to the restricted diameter edge that retains the cup brim. The radial extent of the flange is large enough to increase the hoop strength, and hence retaining force of the restricted diameter edge by between .5 and 1.0 pounds.
Rush Jonathan E.
Toczek Thomas R.
Dixie Consumer Products Llc
Ridout & Maybee Llp
LandOfFree
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