BAG-SEALING DEVICE

Abstract

Mechanical elastic device designed for the closing and opening of bags manufactured from flexible material an indefinite number of times via the pressure exerted by this piece (through taking the form of a Fermat's spiral) on the area of contact with the bag inserted into the same.

Its method of operation consists of positioning the part of the bag we wish to fasten inside the closed area of the spiral and then aligning the two hooks which the piece has on its surface until they lock together, this produces a reduction in the interior space of the spiral and, as a result, this part of the bag is tightened to remain hermetically sealed.

To open it one simply has to release the joined hooks with an external force, the spiral will then return to its relaxed position and we can extract the bag from the device.

Claims

1. Bag-sealing device characterized by taking the form of a Fermat's spiral (FIG. 1), having an appendage curved towards the center of the spiral on the tip of the inside branch of the open end of the spiral (1) and including on the tip of the outside branch of the open end of the spiral (2) a first hook (3) and a second hook (4) which locks together with the previous one and is located on the outside surface of the said branch on the closed part of the spiral.

2. Bag-sealing device as recited in claim 1, characterized by being made of a material which has the mechanical property of changing shape in an elastic manner (resilience).

3. Bag-sealing device as recited in claim 1 in which, for the purpose of adjusting the pressure exerted on the bag positioned inside it, the form described is modified by the following procedure: the more the length of the outside branch of the open end of the spiral (2) is reduced the greater the pressure on the bag. When the aforementioned length is increased the pressure on the bag is reduced.

4. Bag-sealing device in which the act of closing (FIG. 2) consists of both hooks (1) (2) locking together through the action of a pressure exerted on the spiral after the bag has been introduced into the interior of the same (3) and the act of opening the bag also consists of the action of pressing on the spiral to unlock the hooks.

5. Bag-sealing device as recited in claim 1, characterized by the resulting shape of the device when the hooks are locked together providing a smooth form which permits the positioning of tape over the same, for the purpose of making the manipulation of the bag more difficult and protecting its content.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings illustrating the explanation of the invention are included in the following figures:

[0028] FIG. 1: A top view of the bag fastening device in the state prior to its use, without a bag yet being inserted.

[0029] FIG. 2: A top view of the bag fastening device in the state in which the hooks have joined and with the bag now inside.

[0030] FIG. 3: A perspective view of an example of the hook for the device.

PREFERRED EMBODIMENT OF THE INVENTION

[0031] The explanation of the invention and the observation of the drawings in the figures present a preferred embodiment of the invention, describing the elements which comprise the device in a sufficient manner and the manner of operation of the same.