| WO2000068102A1 | 2000-11-16 | |||
| WO2005042363A1 | 2005-05-12 |
| FR1592382A | 1970-05-11 | |||
| FR907889A | 1946-03-25 | |||
| GB2324519A | 1998-10-28 | |||
| GB1159802A | 1969-07-30 | |||
| US4742915A | 1988-05-10 | |||
| GB1290267A | 1972-09-27 |
| Claims
1. Any continuous sheet of material (without connections) in which perforation lines are impressed, which may be folded along these lines and thus create a double-wall container (which may contain liquids and other small-particle materials - such as powders) with three walls at least (each of which is double), which is held in a built position (in which it is ready to contain materials), only by means of the mutual pressures of its walls and of the various folds and surfaces of the sheet.
2. Any continuous sheet of material (without connections) in which perforation lines are impressed, which may be folded along these lines and thus create a double-wall container (which may contain liquids and other small-particle materials - such as powders) with three walls at least (each of which is double), which is held in a built position (in which it is ready to contain materials), by means of the mutual pressures of its walls and of the various folds and surfaces of the sheet only, but also with other means of attachment and tightening (such as: paste, welding, paper clip, tying by thread, stapler etc.).
3. Any receptacle of which the bottom circumference is different in size from the circumference of its upper rim, which may be built from a continuous sheet of material (without connections), in the manner described in any of the above claims, separately.
4. Any receptacle, as described in any of the above claims, separately, to which a holding handle is attached.
5. Any receptacle, as described in any of the above claims, separately, to which a lid is attached.
6. Any receptacle, as described in any of the above claims, separately, which contains at least one opening in at least one of its walls (such as: ventilation pinhole, slot etc.).
7. Any receptacle, as described in any of the above claims, separately, which contains at least one opening in its bottom (such as: a hole for draining liquids).
8. Any receptacle, as described in any of the above claims, separately, which contains at least one opening in its lid (such as: an evaporation aperture). |
NON-LEAKABLE FOLDABLE POLYGONAL CONTAINER
Technical Fie
Foldable paper and cardboard cups
Background Art
Until today several inventions have been registered which offer various ways of folding food cups, which required gluing the parts of the cups parts prior to using them. The main difficulty with these cups was to manufacture them in a commercially and financially feasible manner since the gluing process required complicated manufacture process which made it pricy. The present invention, on the other hand, does not require using any gluing process and therefore - it considerably simplifies the manufacture process and makes it cheaper. The nearest invention to the present one is Israeli Patent Application No. 187643 which presents a cup with only three walls none of which is double, and which may be manufactured without the need of any gluing process either.
Disclosure of Invention
A container made of a flat, continuous sheet (without connections), of thin material (for instance - paper coated with liquid-sealing material), in which perforation lines are impressed, that if the sheet is folded according to their length - a multifunction polygon cup of three or more double- walls may be formed, in various sizes and forms, the resistance of which, while built, is achievable only by means of the mutual pressure of the sheet folds (namely: without any stapling or adhesive means for the purpose of stabilizing the container in its built position).
In comparison to the aforesaid Israeli Patent Application No. 187643, the present invention has two unique advantages:
1) It may have more walls and therefore it broadens the possibilities of use in the container as well as the ease of use thereof; for instance, it is easier to hold a cup with five or more walls, mix liquids therein and also drink therefrom — comparing to a three-wall cup.
2) The manner of folding the sheet from which the vessel is made is different and allows the formation of a stronger vessel which is more resistant to the pressure of its contents - mainly due to its double walls.
Brief Description of Figures
Fig. 1 : a five-wall cup in a pre-use stage (spread out position)
Fig. 2: a five- wall cup with lappets in a pre-use stage (spread out position)
Fig. 3: a four- wall cup with lappets in a pre-use stage (spread out position)
Fig. 4: a three- wall cup in a pre-use stage (spread out position)
Best Mode for Carrying out the Invention
In a pre-use stage, the sheet is spread out - as seen in Fig. 1. Folding the sheet, until it becomes a container, is made as follows: in a continuous, anti clock-wise movement (it may also be done entirely clock-wise), each pair of adjacent triangles (b and bl) is folded along their joint side and is tightened by finger-pinch (so that they become one triangle); this pair is then immediately inserted into the inner part of the formed container and attached by means of finger pressing to the inner part of the adjacent wall (A), and immediately afterwards said tightened pair of triangles is wrapped by the wing (Al) which is adjacent to the same wall, from the direction of its upper part, in a movement similar to that of closing a book. This sequence of actions is to be repeated a number of times identical to the number of the container's walls, until its final shape is formed. At the end of this sequence of actions, the container is built and then it is affixed in its current position by the following means: a) only by means of the mutual
pressure that its various parts and surfaces apply to each other (this may be achieved, for instance, when the circumference of the container's rim is slightly smaller than the circumference of its bottom); b) by way of said mutual pressure and in addition - by way of tightening the various parts of the container with various tightening accessories (such as: stapler, welding, gluing etc.).
A slightly more complex yet structurally stronger version is presented in Fig. 2. This Figure presents a sheet the folding process of which is nearly identical to the one described above, in Fig. 1, with one difference: in addition to the sheet folds described in Fig. 1, there is another fold of the lappets of the wings (marked as Al), lappets which are marked as C, in such a manner that these lappets are pressed and attached to the bottom (marked as D) of the formed cup, and then the mutual pressure which is formed and continues to exist between the lappets and themselves and between the lappets (which are being pressed outwards) and the walls (marked as A) assists in the fixation of the cup in its built state.
While Figures No.l and 2 above present a five- wall cup, cups may also be formed from flat, continuous sheets in which perforation lines are impressed, with three walls (as demonstrated in Fig. 4), four walls (as demonstrated in Fig. 3) or more than five walls, according to the same folding principles described herein.
Industrial Applicability
The manufacture process of the cup is very simple and it comprises of impressing perforation lines on a sheet of material (for instance, cardboard sheet) and cutting it by means of a mould fitted into an industrial presser.
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