Envelopes – wrappers – and paperboard boxes – Paperboard box – Including a polygonal – nonrectangular wall
Patent
1996-11-12
1999-03-02
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Including a polygonal, nonrectangular wall
2291032, 229122, 229906, 229938, B65D 542
Patent
active
058759565
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a pack for cylindrical, hamburger-type sandwiches. More generally, it relates to a pack for any rather compact food presented in a cylindrical shape and intended to be eaten in the pack.
The hamburger being the most popular cylindrical sandwich, the descriptions shall be based on the application to the wrapping of hamburgers, as the wrapping of hamburgers is a delicate operation, inasmuch as it deals with a soft, open and layered sandwich, with dripping sauces and greasy debris which can fall and soil the consumer's clothing if the hamburger is not systematically supported from beneath in its pack during the entire consumption time.
There are two principal known types of hamburger packs-one is a hinged box in the shape of double trays, generally of square cross section, with a snap-in locking system. Currently, for environmental reasons these packs are preferably made of a light-weight flat or micro-flute paperboard; these trays are preformed in an automatic gluing operation.
The hamburger is placed flat in the lower tray, and the consumer must bring it upright, requiring that he delicately slide the index and/or second finger of one hand between the hamburger and the bottom of the lower tray to lift the hamburger with his thumb, in a very uncomfortable gesture, just as uncomfortable as holding the same lower tray with the other hand to protect against spots during consumption, while the upper tray hinged on the lower tray may hit his face during the eating process.
Moreover, children tend to eat the sandwich outside the tray, thereby frequently soiling their clothing.
Other packs are merely very thin rectangular sheets of paper which are wrapped around the hamburger in the manner any flat cylindrical object is wrapped, by tucking the extending edges of the folded paper under the wrapped item.
In addition, there is a very thin, longitudinally pleated wrap, where the pleats are secured at the end by lateral seals, the paper having a polyethylene coating serving as a hot-melt glue to allow it to be sealed.
This manual pack is very difficult to adjust, it is rather unattractive once in place, and has not met with the expected success.
According to another method described in U.S. Pat. No. 4,189,054, a cylindrical box for the packing of round sandwiches consists of two half-shells, each surrounding the sandwich over half of its perimeter, and connected to each other along a single hinge parallel to the generatrix of the cylinder. In the closed position, each shell comes into edge-to-edge contact with the other. During the filling operation, the sandwich is placed upright into the lower shell, and the upper shell is lowered on the lower shell.
During consumption, the sandwich is held in the lower shell which can either be torn along its radius, or folded outward laterally along the hinge in the generatrix of the cylinder. This pack is produced by polyurethane foam molding and has several disadvantages. Since the peripheral and lateral walls are perpendicular to each other and molded, the packs are not stackable; the sandwich is too ensconced at the bottom of one shell while the other shell hits the consumer's face, which is most uncomfortable, particularly during the end phase of consumption as the radial tear-out of the half-shell as well as the lateral tear-out features provided to access the last portion of the sandwich with the mouth are awkward and require a strong pull on the pack which may suddenly give way and possibly dislocate the sandwich, and cause food scraps to shower on the consumer or his neighbors.
To our knowledge, this pack has never actually been used for these reasons.
Differently, U.S. Pat. No. 4,494,785 relates to a precut and prepleated flexible paper napkin destined to partially cover a cylindrical sandwich allowing it to be held in one's fingers without them touching the food. It consists of a strip partially surrounding the periphery of the sandwich and of two series of parallel two-by-two flaps designed to fit between the
REFERENCES:
patent: 2950853 (1960-08-01), Weiss
patent: 3391782 (1968-07-01), Kaspar
patent: 3581708 (1971-06-01), Beck et al.
patent: 3738564 (1973-06-01), Persson
patent: 4137333 (1979-01-01), Daswick
patent: 4428525 (1984-01-01), Brauner
Boshinski Thomas A.
Elkins Gary E.
The Mead Corporation
LandOfFree
Package for cylindrical sandwich and the like does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Package for cylindrical sandwich and the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Package for cylindrical sandwich and the like will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-415042