Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Reexamination Certificate
1999-10-26
2001-06-26
Shoap, Allan N. (Department: 3727)
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
C229S137000, C229S005800, C053S376600, C206S459100, C116S205000
Reexamination Certificate
active
06250543
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to containers of the gabled roof type having a top seal rib for use in packaging aging milk or the like, and a top sealing device for such containers.
Containers of the type mentioned are already known which bear a spout identifying mark printed on a side face of the top seal rib at one end portion thereof providing a spout.
Visually handicapped people are unable to read the mark on the container and therefore fail to recognize which end of the rib provides the spout.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a container of the gabled roof type having a top seal rib which enables even a visually handicapped person to readily recognize which end of the rib provides a spout, and a top sealing device adapted to readily form a spout identifying mark.
The present invention provides a container of the gabled roof type having a top seal rib and a spout identifying mark formed on a side face of the rib at an end portion thereof providing a spout, the container being characterized in that the mark comprises cavities and/or protrusions which are tactually perceivable.
The mark on the container of the invention is in the form of cavities and/or protrusions which are tactually perceivable, and can therefore be recognized tactually by a visually handicapped person, readily indicating to the person which end portion of the rib provides the spout.
The invention provides a top sealing device for containers which comprises a pair of sealing jaws, at least one of the sealing jaws having a sealing face provided with mark-forming recesses and/or projections.
The top sealing device of the invention is adapted to form the top seal rib and the mark at the same time. Accordingly, the mark can be formed easily without entailing a cost increase.
REFERENCES:
patent: 4946041 (1990-08-01), Poole
patent: 5501394 (1996-03-01), Eno
patent: 5503327 (1996-04-01), Barnes
patent: 5564621 (1996-10-01), Writt
Saijo Yoshihiro
Ueda Michio
Ueda Shigeru
Armstrong Westerman Hattori McLeland & Naughton LLP
Mai Tri M.
Shikoku Kakoki Co., Ltd
Shoap Allan N.
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