Self-extracting cap

Abstract

The invention relates to a self-extracting stopper which can be accommodated inside the neck of the bottle, and which does not require a corkscrew or any other tool for the extraction thereof, formed by an assembly of parts preferably made of a plastic material and which, once assembled, permit a bottle or container to be stoppered. The face of the drum (8) and the surface of revolution of the flexible cylinder (4) can also carry marks that are engraved or in shallow relief. In this way, the assembly of the self-extracting stopper is formed by six elements and a cork cover (1), a nut (2), a flexible cylinder (5), a drum (8), a screw (12) and a wing nut (15), all of which are disposed and assembled according to their axial geometry, and which permit a method and process to be provided whereby bottles and/or containers can be stoppered or opened manually or automatically, and said self-extracting stopper being reusable.

Claims

1. A self-extracting cap for opening and closing a bottle or container comprising: a cork cover sealed on a nut, a flexible cylinder positioned between the nut and a drum, the drum has a central hole for a screw to get through, a wing nut slidably received over the screw, the screw rotates by turning and fastening of the wing nut, the nut has fins attached to a neck of the nut; the flexible cylinder has an axial inner hole and on both sides for the nut and drum wings fittings to prevent the nut from rotating when introducing the screw; the drum has anti-rotation fittings on a first side and a drum guide neck on a second side, wings being incorporated radially on the drum guide neck; the screw has a first section of grooves and a second section of a flat and cylindrical male an end of the cylindrical male ends in a square head; the square head having a screw square hole, the male screw including a tread area aligned with the drum hole to prevent the male screw from getting through the drum hole; and the wing nut has wing nut fins, a squared wing nut fitting and a tab run inside and along an axis to withdraw the wing nut from the bottle or container, wherein turning of the wing nut aspirates the flexible cylinder when pressed between the nut and the drum to expand the flexible cylinder towards walls of the bottle or container for putting pressure on the walls of the bottle or container closing a neck of the bottle or container.

2. The self-extracting cap in accordance with claim 1, wherein the cork cover is perforated on a central part wherein oxygen can get inside the bottle or container.

3. The self-extracting cap according to claim 1, wherein the screw is screwed onto the nut by turning the screw to the right and by means of the wing nut, the square wing nut fitting rotates the screw on the square head of the screw.

4. The self-extracting cap according to claim 1, wherein the wing nut slides on the screw to at least two positions: a first position having the wing nut lowered to a height of the cylindrical male in a transport position of the bottle or container and a second position sliding to the wing nut to a top so that the wing nut fins are outside the neck and rotate out of the neck so the bottle or container can be opened by decompressing the flexible cylinder by turning the screw counter-clockwise.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) In order to understand the range of features and advantages of the purpose of the invention, the model, application and brief includes a drawing that complements the description of a preferred mode of execution that will be carried out next, the content of which is not limiting but merely illustrative.

(2) FIG. 1 shows the entire set, and the inner lines of the parts in the hidden devices are shown using slides.

(3) FIG. 1 (1) CORK COVER (2) NUT (3) FIN (4) NECK OF THE NUT (5) FLEXIBLE CYLINDER (6) DRUM GUIDE NECK (7) DRUM WINGS FITTINGS (8) DRUM (9) ANTI-ROTATION FITTING (10) DRUM HOLE (11) TREAD AREA OF THE MALE SCREW (12) SCREW (13) GROOVES (14) MALE (15) WING NUT (16) SQUARE HEAD (17) WING NUT FIN (18) SQUARED WING NUT FITTING (19) SCREW SQUARE HOLE (20) WING NUT TAB

DESCRIPTION OF PREFERRED MODE OF EXECUTION

(4) FIG. 1. The self-extracting cap is sealed on the side touching the liquid, with a cork cover (1) welded to the nut (2) which has radially distributed anti-rotation fins (3) resting on the neck of the nut (4).

(5) The flexible cylinder (5) has holes for the nut (2) fins (3) to prevent the nut from rotating when introducing the screw (12).

(6) The flexible cylinder (5) is axially perforated to allow the drum guide neck (6) and its wings into the drum wings' fittings (7).

(7) The drum (8) has two opposing anti-rotation fittings (9) to prevent the drum (8) from rotating when the flexible cylinder (5) expands inside the bottleneck.

(8) In turn, the drum (8) has a central hole, drum hole (10) for the screw to get through (12) and around the drum hole (10) there is a tread area, tread area of the male screw (14) where it rests and the whole screw does not get through, (12) thus causing the nut (2) to compress the flexible cylinder (5).

(9) The screw (12) in turn has grooves in its coils, (13) and on the series of coils, a cylindrical male (14) which ends in a hollow square head (16) with screw square hollow (19).

(10) The wing nut (15) equipped with protrusions, fins of the wing nut (17) upon which to rest the fingers: thumb and index and make it turn, has a square shaped hollow inside it, as a squared wing nut fitting (18) for the square head (16) of the screw, which extends along the entire wing nut (15).