Beverage cup lid having an annular flange extension for increase

Details Beverage cup lid having an annular flange extension for increase Beverage cup lid having an annular flange extension for increase

1993-08-04

1995-10-24

Elkins, Gary E.

Receptacles

Closures

Removable closure retained by ductile in situ deformation

220709, 220711, B65D 4146

Patent

active

054602866

ABSTRACT:
A beverage cup lid is disclosed that comprises a circular closure panel, circumscribed by a side wall that terminates in a resilient, restricted diameter edge 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 0.5 and 1.0 pounds.

REFERENCES:
patent: 3447714 (1969-06-01), Elliot
patent: 4079857 (1987-03-01), Crisci
patent: 4090660 (1978-05-01), Schram et al.
patent: 4322015 (1982-03-01), Bailey
patent: 4705172 (1987-11-01), Gage
patent: 4877151 (1989-10-01), Rush et al.
patent: 5147065 (1992-09-01), Rush et al.
patent: 5183172 (1993-02-01), Boller

Affiliated with

Also associated with

Rating

Beverage cup lid having an annular flange extension for increase does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Beverage cup lid having an annular flange extension for increase, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beverage cup lid having an annular flange extension for increase will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1881410