LU86094A1 - CAN OPENER FOR USE WITH BOXES WITH AN OPENING RING - Google Patents

Description

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CAN OPENER FOR USE WITH BOXES WITH AN OPENING RING

The present invention relates to a can opener which can be used with boxes provided with an opening ring.

Many manufacturers currently use cylindrical boxes for packaging a wide variety of products. Some of these boxes, in particular those used for packaging beer, lemonade or sparkling water, are provided with a device which allows them to be opened by hand, without having to use any tool, said device consisting of a small ring fixed at a single point on the lid of the box and causing, when lifted, the separation of a part 15 of the lid which is integral with it and which is delimited by a line of least resistance. This system is convenient but it presents, for some people, handling problems; moreover, it requires the application of a relatively large force to lift said ring.

The present invention aims to remedy these drawbacks by proposing the use of a can opener specially designed for the indicated use. The can opener of the invention, which can be used with boxes provided with an opening ring, consists of a small slightly curved lever comprising, at its lower part relative to its concavity, a median boss which must be placed from the rear against the upper cover of the lid of the box to be opened and an end tab located 'du =, side opposite the handle, to be placed beforehand, during use, in the ring d opening of the box in order to lift it.

The use of such a lever makes it possible to easily open, without applying a large force, the boxes with your opening ring. The length of the lever actually determines the force to be applied to open the box and the curvature of the lever determines

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fc- 2 the extent to which the box will be opened.

To use the can opener, first place the tongue in the ring of the box, slide the can opener backwards until the boss 05 comes up against the edge of the cover from the box, then light pressure is applied to the end of the lever. This pressure is enough to open the box almost completely; only a small strip remains attached to the box, which strip can moreover be easily separated by hand.

This can opener can be made of metal or plastic.

A variant of the device consists in the fact that the tongue used to lift the opening ring 15 from the box has two parts, an upper part and a lower part, which form a sort of clamp in which the opening ring is tight. This avoids the loss of the cover in cases where it is completely separated from the box.

Another variant of the device of the invention consists in that the slightly curved lever has several bosses in order to allow the utensil to be used to open boxes having different diameters. The choice of boss to be used will depend on the diameter of the box to be opened.

We will now describe an embodiment of the invention with reference to the accompanying drawing sheets in which: - Figure I shows a side view of the opener, box of the invention, - Figure II shows an eri plan view, taken from the top, of the same can opener, - Figure III shows a plan view, taken from the bottom, of the same can opener and 35 - Figure IV shows the same can opener applied to a box to open.

bans these figures, the reference 1 designates the lan 3 „* · to slide in the ring 4 of the box to open, reference 2 the boss and reference 3 the lever handle. Figures I and IV show the slight curvature of the lever - When in use, slide the tongue 05 into the ring 4, slide the lever backwards until the boss 2 comes up against the rim of the cover of the box, then a pressure is exerted on the handle 3. The ring 4 of the box is thus lifted and the application of additional pressure causes the opening of the box.

As indicated, variants may provide a tongue in two parts and / or a plurality of bosses in order to adapt the utensil to the opening of boxes of different diameters.

It goes without saying that other minor variants can be made in the production of the can opener of the invention without going beyond the scope of this patent.

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Claims (3)

4. · 1. Can opener usable with. boxes provided with an opening ring characterized in that it consists of a small slightly curved lever comprising, at its lower part with respect to its concavity, a median boss which must be placed from the rear against the upper edge of the lid of the box to be opened and an end tab located on the side opposite the handle, to be placed beforehand, during use, in the opening ring of the box in order to lift the one -this. 2. Can opener according to claim 1 characterized in that the tongue for lifting the opening ring of the box has two parts, an upper part and a lower part, which form a sort of clamp in which the opening ring is tight. 3. Can opener according to one of claims 1 or 2 characterized in that the curved lever has • 20 several bosses to allow the use of the utensil to open boxes having different diameters. "·" "