FR2610297A1 - SHUT OFF CAP WITH PROTECTED DEGASS VALVE - Google Patents

Abstract

STOPPING PLUG WITH PROTECTED DEGASING VALVE. CLOSING CAP INCLUDING A DEGAZING VALVE 3 ARRANGED IN A BOWL 5, WITHDRAWAL FROM THE UPPER EDGE 17 OF THE PLUG, CHARACTERIZED IN THAT BOTTOM 5 AT THE BOTTOM OF WHICH THE VALVE 3 IS LOCATED, IS CLOSED IN THE UPPER PART BY A COVER 16 CONSTITUTING WITH THE BOWL 5 A CHAMBER 18 COMMUNICATING WITH THE EXTERIOR BY A VENT 19. THIS INVENTION IS INTERESTED BY MANUFACTURERS OF CONTAINERS AND CONTAINERS, ESPECIALLY IN PLASTICS.

Description

The present invention relates to a

  shutter valve including a release valve

  protected for use in containers, contain-

or similar.

  Many containers, especially in the food industry, must be equipped with an orifice

  degassing due to the increase in pressure

  by the fermentation or decomposition of the

duit content.

  It is known, on plastic barrels

  that, the use of self-closing plugs

  joints equipped with a degassing valve whose

  general shapes recall those of a mushroom.

  To protect the valve against impacts and various mechanical obstacles, it is necessary to

  set back so that its top does not

  not pass from the top surface plane of the cap.

  The valve is thus placed in a low position

  in a hollow of facade made for this purpose.

  This position, called a bowl, allows around the

  cork, the accumulation of water from

  atmospheric pauses in the case of receptacles staying outside. This water, stagnant around the cap, can enter the barrel by the degassing valve during a depression caused, for example,

  by the cold or by jolts of pressure.

  This mixture of water contaminated with the contents of the container, drum, container or other, is to be avoided in

  because of the possible deterioration of the content.

  In addition, in the case of a liquid food

  contamination or defilement thus introduced

  picking makes it unfit for consumption.

  The object of the invention is to remedy this problem.

  is suitable by proposing a cap whose degassing valve is protected, by an added operculum, the entry of a liquid accumulated in the bottom of the

bowl where is the valve.

  For this purpose, the closure cap according to the invention is characterized in that it comprises a degassing valve disposed in a bowl, set back from the upper edge of the plug, characterized in that the valve is protected by a operculum completely closing the upper edge delimiting a chamber communicating with the outside

  by a vent for the gas outlet.

  The shutter thus produced makes it possible to completely avoid accumulation and entry of contaminated water at the degassing valve. It also offers sufficient mechanical protection for the

degassing valve.

  Technical characteristics and others

  advantages are recorded in the following description,

  carried out as a non-restrictive example on several

  the embodiments of the invention with reference to the accompanying drawings in which 2C - Figure 1 is a longitudinal sectional view of the closure cap with cap clipped on the front edge of the plug and side vent formed in the body of the operculum; Figure 2 is a longitudinal sectional view of the closure cap with cap clipped on the side surface of the cap body and side vent formed in the body of the lid; - Figure 3 is a longitudinal sectional view of the closure cap with seal secured by welding or gluing on the front edge of the plug and side vent formed in the body of the lid; - Figures 4 and 5 are plan and side views of the seal with side vent formed in the body of the lid; - Figure 6 is a longitudinal sectional view of the plug with side vent formed in the body of the lid and enlarged on the vent; FIG. 7 is a longitudinal sectional view with lateral vent formed in the body of the plug and

enlargement on the vent.

  A selfjointing stopper 1 whose body 2

  closes any container, barrel or container,

  sede a degassing valve 3 passing through the bottom 4 of a bowl 5 shaped in the front face of the plug so as to ensure its protection back

  relative to the frontal plane 6 of the cap.

  The body 7 of the degassing valve 3 has the general shape of a mushroom capable, under the effect of an internal pressure, of upward movement of the openings 8 and 9, ensuring the

  passing from the inside of the container to the outside.

  The degassing valve 3 is forced down by its flared lower end 10 in a passage 11 provided in the center of the bowl 5. The vertical movements through this passage are made along its foot 12 and are limited upwards by his

lower end flared.

  The side walls 13 and 14 and the wall 15 of the bottom 4 of the bowl 5 are molded of a single

piece in the body of the cap.

  According to the present invention, the valve is protected from the various mechanical shocks and from the inlet of an external liquid, for example water, by a lid 16 attached to the frontal plane 6 of the plug.

against his superior song 17.

  To prevent the accumulation of gas in the chamber 18 formed by the bowl and the cap, there is provided a vent 19 which ensures the passage of degassing for the evacuation of occluded gases formed within the

matter or liquid contained.

  This vent is preferably disposed laterally including radial formed in the cap or in the body of the plug so as to prevent the entry through this passage of the runoff water along the surfaces. As shown more particularly in Figures 4, 5 and 6, the vent 19 is in the form of a groove or a radial groove 20 over a length greater than the thickness of the cap opposite the level of the upper edge , so as to open inside and ensure the evacuation passage or

  exhaust gas between the bowl 5 and the outside

laughing.

  Of course, the same effect is obtained by a radial vent in the form of a groove formed in the body of the cap on its upper edge, for example in the form of a radial groove 21 (Figure 7).

  The operculum 16 is a disk of plastic material

  tick secured to or fixed on the upper edge 17 of the cap. Its upper face 22 may be slightly

  curved to prevent stagnation of water.

  The solidarity or the fixation of the opera-

  16 on the upper edge 17 of the cap can be carried out either directly on the surface, or by engaging a peripheral protrusion clipping 23

  perpendicular to its plane in a complete groove

  appropriate correspondence 24 (Figure 1), or by a clipping on the upper part 25 of the

  side surface 26 of the cap (Figure 2).

  In this version, the opercula has a peripheral shoulder 27 downwards, comprising a

  transverse clipping projection 28 appropriate, s'-

  gaging in a corresponding groove 29.

  It is also possible to envisage a flat, circular operculum 16, with dimensions of the front face of the cap, secured to the upper edge 17 by

  welding, gluing or any other means (Figure 3).

- 5 -

  Other direct variants and modifications

  of secondary order are possible, without

  out of the scope of the present invention.

- 6 -

Claims (9)

  1. Shut-off cap for container, drum,   container or the like, comprising a ventilation valve   ge (3) disposed in a bowl (5), recessed by   relative to the upper edge (17) of the plug,   characterized in that the bowl (5) at the bottom of which   the valve (3) is arranged, is closed in part   upper part by a cover (16) constituting with the cuvet-   te (5) a chamber (18) communicating with the outside by a vent (19).   2. Blanking cap according to the claim   1, characterized in that the lid (16) is attached to the upper end of the plug or soliderized to upper edge (17) of the plug.   3. Blanking cap according to the claims   1 and 2, characterized in that the cap (16) has at its periphery a clipping peripheral projection adapted to engage in a groove or a groove.   4. Blanking cap according to the claim   3, characterized in that the clipping projection (23) is perpendicular to the plane of the cap (16) engaging in a complementary groove (24)   provided in the upper edge (17) of the plug.   5. Blanking cap according to the claim   characterized in that the clipping projection (28) is transverse to a downwardly directed peripheral shoulder (27) which the cap has at its periphery so as to engage a corresponding groove (29) provided on the upper portion   (25) of the lateral surface (26) of the cap.   6. Blanking cap according to any one   that of the preceding claims characterized in that   that the vent (19) is a radial passage in the form a groove or groove. -7-   7. Blanking cap according to the claim   6 characterized in that the groove constituting the passage of the vent (19) is in the body of the cap in his upper song (17).   8. Blanking cap according to claim 6 characterized in that the groove constituting the   passage of the vent (19) is in the body of the opera-   (16) next to the top edge of the stopper.   9. Blanking cap according to the claims   previously characterized in that the face   top of the lid is curved.