Envelopes – wrappers – and paperboard boxes – Paperboard box – Lifting or suspending element
Reexamination Certificate
1999-08-04
2001-05-29
Shoap, Allan N. (Department: 3727)
Envelopes, wrappers, and paperboard boxes
Paperboard box
Lifting or suspending element
C229S155000, C229S158000, C229S150000
Reexamination Certificate
active
06237840
ABSTRACT:
FIELD OF INVENTION
The present invention relates to fiberboard containers, and more particularly to fiberboard containers having hand holes extending through their tops.
BACKGROUND OF THE INVENTION
Fiberboard containers are used with a wide variety of articles. With many articles, it is extremely convenient to have one or more handles on the top of a container. When a handle is located on the container top, a person may carry the container, and articles in the container, with one hand while maintaining the other hand free. However, one handle on the top of a container is often required to support heavy articles that traditionally may have been supported by a box having two handles. As a result, the top handle of a fiberboard container may break, thereby inconveniencing a person carrying the container, and if the container is actually dropped, articles inside the container may be damaged.
Attempts to solve the problem of handle breakage have taken different forms. For example, fiberboard containers have been manufactured having handles made from alternative materials other than fiberboard. Also, alternative materials and extra fiberboard have been used to reinforce the handles. Although these attempts have met with reasonable success, they typically increase the complexity of container manufacture, and require more and different material.
SUMMARY OF INVENTION
The invention is directed to a fiberboard blank for making a container which may be constructed from corrugated cardboard. The blank includes a first side panel foldably connected to a first upper flap, a second side panel foldably connected to a second upper flap, a third side panel foldably connected to a third upper flap and a fourth side panel. The first upper flap has a first slot and a first hand hole. The second upper flap has a second hand hole and a first projection. The third upper flap has a second slot and a third hand hole. The first, second, third and fourth panels are foldably connected to each other in an order that allows adjacent panels to be folded at substantially right angles to one another such that the first and third panels oppose each other and the second and fourth panels oppose each other. The first and third upper flaps may be folded to overlap each other and align the first hand hole with the third hand hole and the first slot with the second slot. The second upper flap may be folded over such that the second hand hole aligns with the first and third hand holes and the first projection is received in the first and second slots.
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Berelsman Timothy N.
Grabowski Joseph W.
Wiegand Wesley D.
Mai Tri M.
Prestolite Corporation
Rader & Fishman & Grauer, PLLC
Shoap Allan N.
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