Envelopes – wrappers – and paperboard boxes – Paperboard box – Having means to facilitate opening the box by severing box...
Patent
1994-07-13
1996-02-27
Shoap, Allan N.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Having means to facilitate opening the box by severing box...
229210, B65D 574
Patent
active
054942160
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a container, manufactured from foldable material and provided on an edge line with a pouring spout, wherein the pouring spout is formed by: line from a first point on the edge line; line from a first point on the edge line; line from a second point on the edge line and which terminates at the first cutting line; line from a second point on the edge line and which terminates at the second cutting line; point of the first cutting line; end point of the second cutting line; the fourth score line and the edge line is greater than the distance between the end point of the first score line on the first cutting line respectively the end point of the second score line on the second cutting line and the edge line.
Such a container is known from U.S. Pat. No. 3,404,828.
The third score line, the first cutting line and the edge line enclose a first pressing surface, while the fourth score line, the second cutting line and the edge line enclose a second pressing surface. By pressing inward both pressing surfaces, for instance by means of the thumb, the end points of the cutting line are moved apart so that both spout surfaces are capable of moving back to their original position.
This step has the result that when the pressing surfaces are moved back the top edge hereof drags with it the bottom edge of the spout surfaces so that the closing operation takes place.
Experience has learned that the closure of this prior art container is not always satisfactorily, and that the score lines wear out quickly.
The aim of the invention is to alleviate the problems encountered by the prior art. This aim is reached in that at least one point on the third score line being on a substantial distance from the first score line lies in the extension of the first score line and that at least one point on the fourth score line being on a substantial distance from the second score line lies in the extension of the second score line.
The fact that the imaginary extensions from the first and the second score lines terminate the third respectively the fourth score lines on a substantial distance from the cutting lines, implies that the pressing surfaces enclosed by the edge line, the cutting lines and the third, respectively the fourth score line have a certain width over this substantial distance.
Consequently these pressing surfaces may exert a spreading force on the termination points of the cutting lines which is sufficient to allow the surfaces to move back though their dead point to the original closed position. According to another preferred embodiment the greatest distance between the third score line, respectively the fourth score line and the edge line is greater than the distance between the intersection point of the first cutting line and the third score line, respectively the second cutting line and the fourth score line.
These steps have the result that when both pressing surfaces are depressed they automatically return to their starting position.
Other attractive preferred embodiments are elucidated in the appended sub-claims.
The invention will now be elucidated with reference to the annexed figures, in which:
FIG. 1 shows a perspective view of a container which is provided with a pouring spout according to the present invention;
FIG. 2 shows a perspective detail view of the pouring spout depicted in FIG. 1 in the opened position;
FIG. 3 shows a detail view corresponding with FIG. 2 during depressing of the pressing surfaces;
FIG. 4 is a perspective view of a second embodiment of the container with a pouring spout according to the invention;
FIG. 5 is a perspective detail view of a second embodiment of the present invention;
FIG. 6 is a top view of a blank from which the container of FIG. 1 can be manufactured;
FIG. 7 is a detail view of a blank according to a third embodiment; and
FIG. 8 shows a detail view of a blank of a fourth embodiment;
FIG. 9 shows a detail view of a blank of a fifth embodiment;
FIG. 10 is a detail view of a blank of a sixth embodiment;
FIG. 11 shows a detail view of a blank of
REFERENCES:
patent: 1679237 (1928-07-01), Birnbaum
patent: 2338260 (1944-01-01), Ringler
patent: 2509289 (1950-05-01), Dunning
patent: 2818207 (1957-12-01), Wilson
patent: 2842302 (1958-07-01), Ryder
patent: 3131847 (1964-05-01), Desmond
patent: 3262627 (1966-07-01), Kersh et al.
patent: 3404828 (1968-10-01), Whipperman
patent: 3692227 (1972-09-01), Hennessey et al.
patent: 4356951 (1982-11-01), Sharp
McDonald Christopher J.
Shoap Allan N.
LandOfFree
Box with pouring spout does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Box with pouring spout, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Box with pouring spout will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1673544