US2918187A - Safety stopper for liquid-carrying and-the like containers - Google Patents

Description

Dec. 22, 1959 M. RIFFET ET AL SAFETY STOPPER FOR LIQUID-CARRYING AND THE LIKE CONTAINERS Filed March 17, 1958 2 Sheets-Sheet 1 INVENTORS ATTORNEY 2 Sheets-Sheet 2 Dec. 22,1959 M. RIFFET ETAL SAFETY STOPPER FOR LIQUID-CARRYING AND THE LIKE CONTAINERS Filed March 17, 1958 v 1 MI W/ Q United States Patent G SAFETY STOPPER FOR LIQUID-CARRYING AND THE LIKE CONTAINERS Marcel Rilfet, Lyon, and Ren Gabriel Marie Damidot, Caluire, France, assignors to Proplastex, Chauifailles (Sadne-dz-Loire), France, a company of France Application March 17, 1958, Serial No. 721,836

Claims priority, application France March 21, 1957 17 Claims, (Cl. 21521) Our invention has for its object a safety stopper for liquid-carrying containers, chiefly bottles; said stopper allows emptying the contents of the containers while preventing any subsequent refilling by the operator unless he destroys in a readily apparent manner said stopper whereby the fraudulent tampering is made undisputable.

This result is obtained through the combination of various parts housed inside a body and including:

A valve designed for the control of the throughput of a liquid out of the container while preventing any refilling, whatever may be the position of the container, said valve being associated with deflecting means such as stationary baffle plates or movable closing members preventing anyone from acting on the valve and disturbing its operation;

Means for securing the stopper body to the container constituted by a skirt opposing any removal of the body of the stopper off the neck of the container without a fully apparent destruction of said securing means or of the stopper body.

Furthermore, auxiliary means such as safety caps, covers, notched walls engaging the neck and the securing skirt, may be associated with the above described arrangement, so as to satisfy special requirements.

We have illustrated in elevational view, by way of example, and by no means in a limiting sense, various embodiments of the invention so as to allow the object of our invention to be readily understood. In said drawmgs:

Figs. 1 and 2 are longitudinal sectional views of the arrangement including a plug or stopper secured through an independent skirt over a container, the valve being shown in its centered and in an eccentric location in said Figs. 1 and 2 respectively.

Fig. 3 is a similar view of the container in its dispensing position.

Figs. 4 and 5 are longitudinal sectional views showing a safety lid rigid with the securing skirt in Fig. 4 and with the body of the stopper in Fig. 5.

Figs. 6 and 7 are longitudinal sectional views showing two embodiments of the stopper positioned inside the neck of a bottle.

Fig. 8 is a longitudinal sectional view of the complete stopper, the body of which forms the skirt.

Figs. 9 and 10 are respectively a front elevational view and a longitudinal sectional view through line 101t3 of Fig. 9, showing a skirt surrounding the neck of the container and provided with a port through which a control element is visible.

Fig. 11 is a partial longitudinal sectional view showing a fluidtight packing inserted between the inner wall of the neck and the outer wall of the lower end of the safety stopper.

Fig. 12 is a view showing a stopper held in position by a metal skirt.

In Fig. 1, 2 designates the support of the seat of the valve, which support is fitted inside the neck of the bottle or the like container 3. The valve 4 rests over the upper surface of said support which forms its seat. The valve is provided with a tail piece 5 the diameter of which is smaller than that of the port 6 in the support 2 through which the liquid contained in the bottle may flow out. Said valve carries also an upper projection 7 the part played by which will appear hereinafter.

The lower section of the support 2 has a diameter corresponding to the inner diameter of the neck 3 so that it prevents any liquid from passing between the outer wall 8. of the support and the neck. If required, a suitable fluidtight packing may be fitted between said wall 8 and the neck 3 so as to obtain perfect fluidtightness. Over the support 2 are positioned removable deflecting means 9 the part played by which consists in simultaneously guiding and limiting the movement of the valve 4 when the bottle is shifted and also in concealing the valve 4. Said deflecting means 9 include chiefly a cap 10 resting on radial fins as shown at 11. It may include in an auxiliary manner further inner fins 1212a, upper fins 13-13a and an outwardly directed flange 14.

Over the deflecting means 9 is mounted a movable auxiliary closing disc 15 resting freely over the radial fins 11 and over the flange 14, if any.

The deflecting means 9 include furthermore one or more projections such as 16 in the shape of frustoconical annuli adapted to prevent anyone from reaching from the outside the valve 4. A stopper body 17 encloses the arrangement described hereinabove constituted by the deflecting cap 10 and its auxiliaries. Said body 17 includes a dome-shaped section with a port 18 used for dispensing the contents of the bottle, said port being closed when desired by a cover 19, for instance a screwed cover. On its lower surface, said cover may include fins 20 adapted to engage the gaps between the upper fins 1313a on the deflecting cap 10.

The arrangement which has thus been described is held against the opening of the bottle, which has been previously filled, by a skirt 21 capping the body 17. Said skirt 21 is provided in its lower section with annular projections 22 forming a serrated inner surface directed in a manner such as will prevent the removal of the skirt from the neck 3 capped by it. However, and with a view to furthering its insertion, the diameter of the lower end of said skirt is larger than the diameter of its upper section. The neck 3 is provided with outer annular grooves, the outline of which mates that of the skirt and ensures a perfect engagement of the latter.

The body 17 and the skirt 21 are made of a suitably chosen material of a low elasticity so as to allow the fitting of the skirt 21 through suitable implements opening yieldingly said skirt.

In contradistinction, the dismantling is impossible since no tool can be introduced after the fitting of the skirt 2 between the latter and the neck 3 without damaging the skirt 21, said damaging showing in an apparent manner that the bottle has been tampered with.

Obviously, the skirt 21 of Fig. 1 might be less high and extend less in a downward direction as illustrated in Fig. 2 whenever the bottle does not allow the securing of the stopper in the manner described. In such a case, the body 17 is fitted to the neck 3 through other means such as an independent skirt 32 as illustrated in Fig. 2. Said skirt may be made of any suitable material such as metal or plastic material for instance.

All the parts described hitherto may be made of various materials such as metal, ceramic ware, glass, plastic material or the like.

The shape of the valve should preferably always be somewhat similar to that disclosed; in other words, it should form a very flat spherical cap, said shape being advantageous inasmuch as it provides an outer oblique surface preventing any mechanical normally on it.

The tail-end of the valve may be made of any material differentfrom that of the valve 4 or it may be hollow, or again it may enclose a recess filled with a heavy material so as to further the return movement of the valve onto its seat under the action of gravity.

The diameter of the valve 4 is such that the opening 6 through which the liquid flows out is always completely closed when the valve rests on its seat whatever may be its eccentric location. This eccentricity is furthermore limited by the limited shifting of the tail-piece 5 and by the presence of the fins 11.

The operation of the safety stopper described is as follows: When the bottle or the like container stands vertically on its lower end, the valve 4 closes perfectly the opening 6 and opposes any introduction of liquid. If the bottle is set aslant, the'lower surface of the valve remains in contact with the upper surface of the support 2 until the moment at which, as illustrated in Fig. 3; the vertical line passing through the center of gravity of the valve crosses the vertical line passing through the bearing point 4a of the valve periphery engaging the fins 11. The rocking of the valve which is then obtained allows the flowing out of the liquid through the opening 6, through the gaps between the fins 11 and finally through the port 18. Said flow is not disturbed by the annular movable closing disc 15 which occupies then the position illustrated at 15a in Fig. 3 into which it is readily urged by the action of gravity and by the hydrodynamic pressure of the liquid.

Obviously, the slope of the bottle for which the rocking of the valve 4 is obtained depends on the position of'the center of gravity of the valve with reference to its bearing point and it may be obtained for the desired slope through a suitable selection of such parameters, for instance by making the tail-piece 5 of the flap valve 4 more or less heavy.

It should be remarked that it is impossible to refill the bottle in its sloping position since, although its valve is sufficientlv open, the air contained in the bottle cannot escape and also since the hydrodynamic pressure urges the valve 4 into its closed position.

The presence of the deflecting means 9 including the cap 10, of annular projections such as 16 and of the closing disc 15 prevents reaching the valve 4 with any article such as a wire with a view to raising or to holding in its raised position the valve 4 in order to fraudulently introduce liquid into the bottle. ter of fact, the actual presence of the closing disc 15 prevents such an introduction. The cap 10 covers the direct access to the valve starting from the opening 18. The wire or the like article cannot therefore enter the arrangement and, even if it were to pass beyond the hindrance formed by the closing disc 15, it would be stopped by the annular projection 16. It is impossible to pass through this protecting system and furthermore the receding shape given to the outer surface of the valve 4 would deflect any tool and such a tool would in no case be capable of engaging the gap between the lower surface of the valve and its seat.

The combined action of the upper rod of the valve 4, of the inner fins 12-12a, of the cap 10, of the upper fins 13-1311 on said cap and of the fins 20 on the cover 19 (Fig. 1) leads to allowing the valve 4 to leave its seat whenever the bottle carries a liquid, of a sirupy nature for instance, which has a tendency to make the valve adhere to its seat. As a matter of fact, the rotation of the cover 19 has for its result to drive into rotation the cap 10 and more generally the complete deflecting means 9 through action of the fins 20 rigid with the cover19 on the fins 13 rigidwith the inner cap 10. The rotation of the cap 10 has in its turn for its result to shift and, consequently, to release the valve 4 through part from acting As a mataction of the inner fins 12 rigid with the cap 10 on the upper projection 7 of the valve 4. It should be remarked that the valve 4 is practically always eccentrically positioned, as illustrated in Fig. 2 by reason of the precedingly described dispensing step.

It is important to remark that, if the bottle or container contains a liquid which has no tendency to make the valve adhere to its seat, such as an alcohol for in stance, it is possible to cut out the parts serving for the release of the flap valve through rotation thereof, to wit the fins 12, 13 and 20, together with the upper rod 7 rigid with the valve, which makes the arrangement simpler and consequently cheaper.

The skirt 21 (Fig. 1) or the skirt 32 (Fig. 2) ensures inviolability since it prevents removing the stopper from the container. As disclosed hereinabove, such skirts can be positioned only through special means and, consequently, by reason of their shape and of the material forming them, they cannot be drawn out without tearing which shows out in a highly apparent manner any fraudulent tampering. From this standpoint, the shape illustrated in Fig. 1 appears to be preferable by reason of the further difficulties opposing the removal of the stopper by the serrated outline of the skirt which is directed to further the insertion of the latter and to oppose a maximum resistance to its removal.

The skirt 21 or 32 is of a particular interest for receiving and holding in position a label, a seal and in particular a governmental seal certifying inspection and payment of any duty required. The carrier for said label or seal is preferably positioned in an area of the skirt which would be subjected to maximum damage in the case of a tentative dismantling. The area carrying the seal may furthermore be purposely weakened so as to yield upon any abnormal stress being applied to it.

The upper section of the skirt 21 (Figs. 4 and 5)" may, if required, incorporate a small lid 24 rigid with the skirt and guaranteeing reliably for the user that the contents of the bottle are the authentic original contents. Said small lid is cut out for the first dispensing of the contents, the cutting out being defined preferably by a groove 25. In the case of an independent skirt such as 32 being used, the lid 26 may be rigid with the body 17 as shown in Fig. 5. The lid is then housed inside the outer cover 19.

Obviously, the arrangements such as the fins 12, 13, 20 may be replaced by any member leading to the same result such as rotary projections driving the valve into rotation, or else by grooves, rods sliding inside cooperating recesses, and generally speaking any known means for driving parts into rotation and adapted to provide the desired effect, without unduly widening thereby the scope of the invention as defined in the accompanying claims. It is even possible to form the parts such as the valve 4 and its seat out of any materialopposing its adherence or to coat them with such a material opposing adherence. I

In the modified embodiment illustrated in Fig. 6, the body 48 of the safety stopper is entirely housed inside the neck 3 of the bottle. It may also be rigid with its securing skirt 49 and its cover 51 may be provided along its inner surface with a tubular projection 52 the outer wall of which is threaded as shown at 53 so as to be screwed inside the tapped bore 54 of the body 48. a

In Fig. 7, the body 56 of the stopper is provided with. a chimney-shaped extension 57 the outer wall of which is adapted to carry the cover 58 screwed over it.

According to a further embodiment illustrated in Fig. 8, the body 41 of the stopper is reinforced by extending its lower end as provided by a skirt 42 which replaces the independent skirt used in the preceding embodiments for capping said body and securing it to the neck 3 of the bottle, 1

In order to avoid during transportation the unscrewing of the cover 43, the transverse wall 44 of the stopper body (Fig. 8) or of the independent skirt, if any, capping the stopper is provided at one or more points or throughout its periphery with a yielding element 45 folded into hookshape inwardly and adapted to recede under the pressure exerted by the flange 46 of the cover 43 so that said element engages the flange during the screwing of the cover or is released upon unscrewing. It is also possible to provide, as illustrated in Figs. 9 and 10, a gate cut in the side wall of the skirt 6?. and the edges 61 of which serve for the direct securing of a control label 64 which is set in position before introducing the neck 65 inside the skirt 62.

With a view to improving fluidtightness, there may be inserted between the lower end 2 of the body of the stopper and the inner wall of the neck 3, a fiuidtight annular packing 31 which may include an inner skirt 38 which may in fact be folded over itself as illustrated in Fig. 11. Said skirt forms a yielding and elastic packing which makes up for the clearance between the inner diameter of the neck 3 and the outer diameter of the lower end 2 of the stopper body.

Lastly, when the stopper has been fitted in a tamperproof manner over a bottle, its securing may be ensured by a metal skirt or strip 33 (Fig. 12) set, on the one hand, over the enlarged end 34 of the neck 35 and, on the other hand, over the shoulder 36 formed by the dome-shaped section of the stopper body or the upper edge of the neck. If the stopper lies inside the latter, the skirt 33 includes in the making a tongue 37 the outline of which is continued by two lines of reduced resistance 38 extending along two generating lines of said skirt or else along helical lines over the periphery of the latter. Said tongue associated with such lines of a reduced resistance allows an easy tearing off of the skirt with a view to removing the safety stopper.

What I claim is:

1. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially with reference to the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a seat facing the opening of the body into the atmosphere, a flat valve slidingly resting on said seat, deflecting means fitted inside the hollow body between the seat and the opening facing the atmosphere, including a cap, guiding means carrying said cap, fitted inside the hollow body and holding the cap coaxially over the seat, a flat annular member resting loosely on the periphery of the cap, a slightly frusto-conical annulus carried along the outer periphery of the guiding means, coaxially with and at a lower level than the cap and forming with the flat annular member a bafile preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body and a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and preventing removal of the body off the container otherwise than through tearing of the skirt.

2. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially with reference to the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a dome shaped section provided with a seat facing the opening of the body into the atmosphere, a flat valve slidingly resting on said seat, deflecting means including radial fins extending inside the dome-shaped section between the seat and the opening facing the atmosphere and defining between their inner ends a free axial opening, forming underneath them a compartment in which the valve is shiftable between its normal position of rest on its seat and a released position occupied by it upon sufficient sloping of the container to allow passage of liquid between said valve and its seat, said deflecting means including furthermore a cap rigid with said fins and extending coaxially in the hollow body, a flat annular member resting loosely on the periphery of the cap, a slightly frusto-conical annulus carried along the outer periphery of the fins, coaxially with and at a lower level than the cap and forming with the flat annular member a bathe preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body and a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and preventing removal of the body off the container otherwise than through tearing of the skirt.

3. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially with reference to the opening of the container and provided with co axial openings registering with the outer atmosphere and with the opening in the container and including a domeshaped section provided with a seat facing the opening of the body into the atmosphere, a flat valve slidingly resting on said seat, loose deflecting means including radial fins extending freely in the dome-shaped section between the seat and the opening facing the atmosphere and defining between their inner ends a free axial opening, forming underneath them a compartment in which the valve is shiftable between its normal position of rest on its seat and a released position occupied by it upon sutficient sloping of the container to allow passage of liquid between said valve and its seat, a cap lying inside the dome-shaped section of the 'body and resting rigidly on said fins to close the openings defined by the latter, radial fins carried by the upper surface of said cap and engaging the inner periphery of the domeshaped section and lower radial fins rigid with the abovementioned cap, a flat annular member resting loosely on the periphery of the cap, a slightly frusto-conical annulus carried along the outer periphery of the fins, coaxially with and at a lower level than the cap and forming with the flat annular member a bafile preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body and a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and preventing removal of the body off the container otherwise than through tearing of the skirt.

4. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially with reference to the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a domeshaped section provided with a seat facing the opening of the body into the atmosphere, a flat valve slidingly resting on said seat, deflecting means including radial fins extending inside the dome-shaped section between the seat and the opening facing the atmosphere, defining between their inner ends a free axial opening and forming underneath them a compartment in which the valve is shiftable between its normal position of rest on its seat and a released position occupied by it upon sufficient sloping of the container to allow passage of liquid between said valve and its seat, a cap lying loosely inside the dome-shaped section of the body and carried rigidly on said fins to close the opening defined by the latter, radial fins carried by the upper surface of said cap and engaging the inner periphery of the dome-shaped section and lower radial fins on the cap registering with the first-mentioned radial fins inside said section, an annular disc adapted to move freely in an axial direction and resting over the upper edges of the fins carrying the cap to close the gaps between said fins, an annular flange extending along the inner periphery of said dome-shaped section and forming a battle with the above-mentioned cap and disc, preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body and a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and preventing removal of the body off the container otherwise than through tearing of the skirt.

5. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially with reference to the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a domeshaped section provided with a seat facing the opening of the body into the atmosphere, a fiat valve slidingly resting on said seat, deflecting means including radial fins extending inside the dome-shaped section between the seat and the opening facing the atmosphere, defining between their inner ends a free axial opening and forming underneath them a compartment in which the valve is shiftable between its normal position of rest on its seat and a released position occupied by it upon sufficient sloping of the container to allow passage of liquid between said valve and its seat, a rod rigid with the upper surface of the valve and extending inside the opening defined by the inner edges of the first-mentioned fins, an annular flange rigid with the inner periphery of said dome-shaped section and preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body and a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and preventing removal of the body off the container otherwise than through tearing of the skirt.

6. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially with reference to the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a domeshaped section provided with a seat facing the opening of the body into the amtosphere, a flat valve slidingly resting on said seat, deflecting means including radial fins extending inside the dome-shaped section between the seat and the opening facing the atmosphere and defining between their inner ends a free axial opening, forming underneath them a compartment in which the valve is shiftable between its normal position of rest on its seat and a released position occupied by it upon sufiicient sloping of the container to allow passage of liquid between said valve and its seat, a cap lying inside the dome-shaped section of the body and resting on said fins to close the opening defined by the latter, radial fins carried by the upper surface of said cap and engaging the inner periphery of the dome-shaped section and lower radial fins on the cap extending in the gaps between the first-mentioned radial fins inside said section, an annular flange extending along the inner periphery of said dome-shaped section a flat annular member resting on the periphery of the cap and forming with the flange a baflie, preventing the introduction of any implement through the opening of the body into contact with the valve, 21 cover threadedly engaging the opening of the body, fins rigid with the inside of the cover and extending into the dome-shaped section of the body and between the inner sections of the fins carried by the cap whereby rotation of the screwed cover produces through the successive series of fins a rotation of the cap, and an angular shifting of the valve on its seat and a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and preventing removal of the body off the container otherwise than through tearing of the skirt.

7. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially with reference to the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a domeshaped section provided with a seat facing the opening of the body into the atmosphere, a flat valve slidingly resting on said seat, deflecting means including radial fins extending. inside the dome-shaped section between the seat and the opening facing the atmosphere and defining between their inner ends a free axial opening, forming underneath them a compartment in which the valve is shiftable between its normal position of rest on its seat and a released position occupied by it upon suflicient sloping of the container to allow passage of liquid between said valve and its seat, a cap lying inside the dome-shaped section of the body and resting on said fins to close the opening defined by the latter, radial fins carried by the upper surface of said cap and engaging the inner periphery of the dome-shaped section and lower radial fins on the cap extending in the gaps between the first-mentioned radial fins inside said section, a frusto-conical flange fitted along the outer periphery of the fins, a flat annular member resting on the periphery of the cap and forming with the flange a baflie preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body, a chimneyshaped extension for the body beyond its opening into the atmosphere, said extension lying within the cover and being engaged by the upper fins on the cap and a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and preventing removal of the body off the container otherwise than through tearing of the skirt.

8. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially with reference to the opening of the container and provided, with coaxial openings registering with the outer atmosphere and with the opening in the container and including a seat facing the opening of the body into the atmosphere, a tubular sleeve rigid with said body round its second opening and engaging the neck of the container, an annular fiuidtight packing fitted between the outer wall of the body and of its sleeve, on the one hand, and the inner wall and the upper edge of the container opening, on the other hand, a flat valve slidingly resting on said seat, deflecting means fitted inside the hollow body between the seat and the opening facing the atmosphere, including a cap, guiding means carrying said cap, fitted inside the hollow body and holding the cap coaxially over the seat, a flat annular member resting loosely on the periphery of the cap, a slightly frusto-conical annulus carried along the outer periphery of the guiding means, coaxially with and at a lower level than the cap and forming with the flat annular member a baflie preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body and a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and preventing removal of the body off the container otherwise than through tearing of the skirt.

9. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially inside the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a seat facing the opening of the body into the atmosphere, a flat valve slidingly resting on said seat, deflecting means fitted inside the hollow body between the seat and the opening facing the atmosphere, including a cap, guiding means carrying said cap, fitted inside the hollow body and holding the cap coaxially over the seat, a flat annular member resting loosely on the periphery of the cap, a slightly frusto-confcal annulus carried along the outer periphery of the guiding means, coaxially with and at a lower level than the cap and forming with the fiat annular member a battle preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body and a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and enclosing fluid tightly the outer surface of the body together with a part of the outer surface of the container neck to seal said body on the container.

10. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially inside the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a domeshaped section provided with a seat facing the opening of the body into the atmosphere, a flat valve slidingly resting on said seat, deflecting means including radial fins extending inside the dome-shaped section between the seat and the opening facing the atmosphere and defining between their inner ends a free axial opening, forming underneath them a compartment in which the valve is shiftable between its normal position of rest on its seat and a released position occupied by it upon sufiicient sloping of the container to allow passage of liquid between said valve and its seat, a cap lying inside the dome-shaped section of the body and carried by said fins to close the opening defined by the latter, radial fins carried by the upper surface of said cap, engaging the inner periphery of the dome-shaped section and lower radial fins on the cap extending in the gaps between the first-mentioned radial fins inside said section, a frusto-conical flange fitted along the outer periphery of the fins, a flat annular member resting in the periphery of the cap and forming with the flange a baflle preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body and a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and preventing removal of the body off the container otherwise than through tearing of the skirt, said skirt scaling in a tamperproof manner the stopper body positioned inside the opening of the container and enclosing the outer surface of the domeshaped section of said body together with a part of the outer surface of the container neck.

11. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially with reference to the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a domeshaped section provided with a seat facing the opening of the body into the atmosphere, a flat valve slidingly resting on said seat, deflecting means including radial fins extending inside the dome-shaped section between the seat and the opening facing the atmosphere, defining between their ends a free axial opening and forming underneath them a compartment in which the valve is shiftable between its normal position of rest on its seat and a released position occupied by it upon sufficient sloping of the container to allow passage of liquid between said valve and its seat, a cap lying inside the dome-shaped section of the body and resting on said fins to close the openings defined by the latter, radial fins carried by the upper surface of said cap and engaging the inner periphery of the dome-shaped section and lower radial fins on the cap extending in the gaps between the first-mentioned radial fins inside said section, a fru-sto-conical flange fitted along the outer periphery of the fins, a flat annular member resting in the periphery of the cap and forming with the flange a bafl le preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body, a chimney-shaped extension for the body beyond its opening into the atmosphere, said extension lying within the cover and being engaged by the upper fins on the cap, a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and preventing removal of the body off the container otherwise than through tearing of the skirt and a lid closing the upper end of the chimney-shaped extension, rigid with the skirt in the making and detachable from the latter.

12. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially inside the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a domeshaped section provided with a seat facing the opening of the body into the atmosphere, a flat valve slidingly resting on said seat, deflecting means including radial fins extending inside the dome-shaped section between the seat and the opening facing the atmosphere and defining between their inner ends a free axial opening, forming underneath them a compartment in which the valve is shiftable between its normal position of rest on its seat and a released position occupied by it upon sulficient sloping of the container to allow passage of liquid between said valve and its seat, a cap lying inside the dome-shaped section of the body and resting on said fins to close the opening defined by the latter, radial fins carried by the upper surface of said cap, engaging the inner periphery of the dome-shaped section and lower radial fins on the cap extending in the gaps between the first-mentioned radial fins inside said section, a frustoconical flange fitted along the outer periphery of the fins, a flat annular member resting in the periphery of the cap and forming with the flange a baffie preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body and a skirt sealing in a tamperproof manner the stopper body positioned inside the opening of the container, forming a unit with the dome-shaped section of the body and enclosing a part of the outer surface of the container neck.

13. A safety stopper for a liquid-carrying bottle and the like container including a neck provided with an opening and with outer peripheral grooves the upper edges of which are substantially perpendicular to the axis of the neck, comprising a hollow body fitted coaxially inside the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a seat facing the opening of the body into the atmosphere, a flat valve slidingly resting on said seat, deflecting means fitted inside the hollow body between the seat and the opening facing the atmosphere, including a cap, guiding means carrying said cap, fitted inside the hollow body and holding the cap coaxially over the seat, a flat annular member resting loosely on the periphery of the cap, a slightly frusto-conical annulus carried along the outer periphery of the guiding means, coaxially with and at a lower level than the cap and forming with the fiat annular member a baffle preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body and a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and including along its inner wall annular projections the upper edges of which are substantially perpendicular to the skirt axis and match the shape of the grooves in the neck to be held securely thereinwithout any possible removal after first insertion.

14. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially with reference to the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a seat facing the opening of the body into the atmosphere, said body being fitted inside the container neck and including a flange extending over the upper edge of said neck, a flat valve slidingly resting on said seat, deflecting means fitted inside the hollow body between the seat and the opening facing the atmosphere, including a cap, guiding means carrying said cap, fitted inside the hollow body and holding the cap coaxially over the seat, a flat annular member resting loosely on the periphery of the cap, a slightly frusto-conical annulus carried along the outer periphery of the guiding means, coaxially with and at a lower level than the cap and forming with the flat annular member a bafile preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body and a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and fitted tightly round the container neck, forming a unit with the flange of the body and with the body itself to prevent removal of the body otherwise than through a tearing of the skirt.

15. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially with reference to the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a seat facing the opening of the body into the atmosphere, a flat valve slidingly resting on said seat, deflecting means fitted inside the hollow body between the seat and the opening facing the atmosphere, including a cap, guiding means carrying said cap, fitted inside the hollow body and holding the cap coaxially over the seat, a flat annular member resting loosely on the periphery of the cap, a slightly frusto-conical annulus carried along the outer periphery of the guiding means, coaxially with and at a lower level than the cap and forming with the flat annular member a battle preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body, the lower end of the cover including an inwardly extending flange, a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and preventing removal of the body off the container otherwise than through tearing of the skirt, and projecting means rigid with the outer surface of the skirt and adapted to yieldingly engage and hold fast the outer flange on the cover.

' 16. A safety stopper for a liquid-carrying bottle and the like container, provided with an opening in its neck, comprising a hollow body fitted coaxially with reference to the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a seat facing the opening of the body into the atmosphere, a flat valve slidingly resting on said seat, deflecting means fitted inside the hollow body between the seat and the opening facing the atmosphere, including a cap, guiding means carrying said cap, fitted inside the hollow body and holding thecap coaxially over the seat, a flat annular member resting loosely on the periphery of the cap, a slightly frusto-conical annulus carried along the outer periphery of the guiding means, coaxially with and at a lower level than the cap and forming with the flat annular member a baflle preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body, a threaded tubular extension on the inner surface of the cover threadedly engaging the outer end of the body coaxially with the opening of the latter facing the atmosphere and a skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and preventing removal of the body off the container otherwise than through tearing of the skirt.

17. A safety stopper for a liquid-carrying bottle and the like container, provided with an outer peripheral flange round its opening, comprising a hollow body fitted coaxially with reference to the opening of the container and provided with coaxial openings registering with the outer atmosphere and with the opening in the container and including a dome-shaped section provided with a seat facing the opening of the body into the atmosphere, a flat valve slidingly resting on said seat, deflecting means including radial fins extending inside the dome-shaped section between the seat and the opening facing the atmosphere and defining between their inner ends a free axial opening, forming underneath them a compartment in which the valve is shiftable between its normal position of rest on its seat and a released position occupied by it upon suflicient sloping of the container to allow passage of liquid between said valve and its seat, an annular flange extending along the inner periphery of said dome-shaped section, a flat annular member resting on the periphery of the cap and forming with the flange a bafile, preventing the introduction of any implement through the opening of the body into contact with the valve, a cover threadedly engaging the opening of the body and a metal skirt fitted permanently over adjacent surfaces of the body and of the container on the outside of the location of the cover and preventing removal of the body off the container otherwise than through tearing of the skirt, said metal skirt bearing on the domeshaped section of the body and on the outer peripheral end of the flange on the container, and means for carrying any desired inscription on said skirt and means for tearing said skirt off.

References Cited in the file of this patent UNITED STATES PATENTS 607,923 Fairhurst July 26, 1898 2,326,340 Dummer Aug. 10, 1943 FOREIGN PATENTS 703,736 Great Britain Dec. 20, 1951

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