CZ2003992A3 - Bottle cap, especially PET bottles, equipped with a valve for easy pouring of liquids - Google Patents

Abstract

The cap (2) is formed by a nut (2.1) screwed onto the neck bottles (1) and having a thread (2.9) on one side of the seat (2.8) for the valve (2.3) and the other side of the ring for the spring (2.4) for gripping the circular movement of the sleeve (2.2) against the nut (2.1). On the circumference of the nut (2.1) one or more grooves (6) for the projection (2.5) of the sleeve (2.2). The groove (6) is formed by the mounting groove (6.1), screw groove (6.2), straight groove (6.3) and a stop (6.4). The sleeve (2.2) is pushed onto the nut (2.1), which has a central hole for the valve stem (2.3) and holes for a liquid outlet, a shoulder for the spring (2.4) and a notch (2.7) for its positioning. The projection (2.5) fits into the groove (6) and permits direct or bolt movement of sleeve (2.2) against nut (2.1). Between the nut (2.1) and the collar (2.2) there is a spring (2.4) s biasing such that it is in any position of the bottle (1) valve (2.3) closed. The valve is fixed in the sleeve (2.2) (2.3), which passes into the nut (2.1) and sits tightly on the seat what (2 · 8)

Description

Bottle cap, especially PET bottles, fitted with a valve for easy pouring of liquids

Technical field

The invention relates to bottle caps, in particular PET bottles, which are provided with a valve which enables the mechanical opening and re-closing of the cap for the purpose of pouring liquid.

BACKGROUND OF THE INVENTION

Presently, various valve closures are known, in particular in the cosmetics field, used for example for liquid soaps, whose liquid dosing operates on the principle of a pump. These dispensing closures are not useful for dispensing larger quantities of fluids.

In the case of a variety of drinking water, mainly filled into carbonated (CO 2) PET bottles, presently preferred valve caps are used to dispense such that the carbon dioxide released from the fluid exerts a pressure inside the bottle that acts on the liquid in the bottle. With this pressure, the fluid is forced out of the bottle through the tube with the valve open.

Valve caps used for carbonated liquid-containing cylinders and operating on the basis of the pressure generated by releasing carbon dioxide from the fluid exhibit a reduction in pressure when the fluid is drained, which must be increased by shaking. With a small amount of liquid in the bottle, it can no longer be displaced and remains in the bottle. Shaking significantly reduces the saturation of the fluid.

Also known are closures with cylinder valves which operate in a similar manner. Cylinder closures for cylinders are not applicable to cylinders of other designs which are or may be pressurized.

SUMMARY OF THE INVENTION

These drawbacks are largely overcome by the bottle cap, particularly PET bottle, provided with an easy liquid pour valve according to the invention.

The bottle cap fitted with a valve consists of a nut that is screwed onto the neck of the PET bottle. The nut has a valve seat formed on one side of the thread, and on the other side of the thread a ring ring and a notch are formed to receive the circular movement of the sleeve against the nut. At the periphery of the nut there is one or more shaped grooves in which the projection of the sleeve moves.

The formed groove consists of a mounting groove, a screw groove, a straight groove and a stop. On the nut there is a sleeve which has a central hole for the valve stem and fluid outlets, a shoulder for the spring and a notch for its positioning, as well as a projection which fits into the shaped groove in the nut and allows direct or screw movement of the sleeve against the nut.

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A bias spring is inserted between the nut and the sleeve so that the valve is closed at any position of the bottle.

The sleeve is firmly attached to the valve, which passes into the nut and abuts the seat, which seals.

On the surface, the sleeve is preferably grafted for easy gripping when screwed onto the bottle and opening the valve for draining the bottle contents.

For the convenience of using the bottle, the bottle can be inserted into a special stand, which preferably consists of a base and a support arm provided with an opening in the upper part, into which the sleeve of the bottle cap fits. For holding the bottle ¹ , any holder having an opening for the bottle cap sleeve is sufficient.

Carbonated (CO2) beverages, especially in 1.5 and 2.0 liter PET bottles, can easily be poured into glasses using the present invention. The conventional bottle cap is replaced by a valve cap according to the invention which allows two pouring methods.

1. pouring method: Place the bottle with the valve in a special stand upside down, place a glass under the bottle and by pushing on the bottom of the bottle the valve will be opened and the contents of the bottle will leak out. By breaking the pressure to the bottom of the bottle, the valve closes. The bottle can be removed from the stand and placed, for example, in the refrigerator.

2. Pouring method: Grab the bottle and bend over the glass, we can turn upside down to the vertical position, turn the sleeve by hand to open the valve, close the valve by releasing the sleeve, which returns to the starting position and closes the valve,

For non-carbonated cylinders, the valve cap is fitted with a suction hose for air supply above the liquid. Pouring is carried out in a similar way as for carbonated PET bottles.

Main advantages of the invention

1. The bottle is still closed and the contents do not leak when inverted

2. Bottles containing carbonated CO2 are not replenished with ambient air and thus do not impair the quality of the contents

3. Easy operation even for children, eliminating the problem of the weight of a full bottle during handling

4. Easy Valve Cleaning - Rinsing under a jet of water

5. Two uses,

a) in a rack - especially at home, in a cottage, in a restaurant

b) without stand - especially when traveling in the car and outdoors

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Overview of the drawings

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be explained in more detail with reference to the drawing in which:

- Fig. 1 PET bottle with a closure provided with a valve according to the invention, wherein the PET bottle is inserted upside down in a rack and a glass is placed underneath

2 shows the same assembly as in FIG. 1, except that the valve closure is provided with a suction tube;

Fig. 3 shows a cross-section through a valve-cap without a suction tube

Fig. 4 then shows a detail of the formed groove

DETAILED DESCRIPTION OF THE INVENTION

Example 1 - PET bottle cap provided with a valve for easy pouring of carbonated carbonate liquids according to Figs. 1, 3 and 4.

The valve cap 2 with valve 2.3 is formed by a nut 2.1 which is screwed onto the neck of the PET bottle 1.

The nut 2.1 has on one side of the thread 2.9 a seat 2.8 for the valve 2.3, and on the other side of the thread 2.9 a circular ring is formed for the spring 2.4 and a notch 2.6 for gripping the circular movement of the sleeve 2.2 opposite the nut 2.1. At the periphery of the nut 2.1 there is one or more shaped grooves 6 in which the projection 2.5 of the sleeve 2.2 moves.

The formed groove 6 consists of a mounting groove 6.1, a screw base 6.2, a straight groove 6.3 and a stop 6.4. On the nut 2.1 there is a sleeve 2.2 having a central bore for the valve stem and a fluid outlet opening, a shoulder for the spring 2.4 and a notch 2.7 for its abutment, a projection 2.5 which fits into the formed groove 6 in the nut 2.1 and allows straight or screw movement of the sleeve 2.2 against the nut 2.1.

Between the nut 2.1 and the sleeve 2.2 a spring 2.4 is inserted with a bias so that in any position of the bottle 1 the valve 2.3 is closed.

In the sleeve 2.2, the valve 2.3 is fixed, which passes into the nut 2.1 and bears on the seat 2.8 which it seals.

On the surface, the sleeve 2.2 is screwed in for easy attachment when screwed onto the bottle 1 and when the valve 2.3 is opened for draining the bottle contents.

Example 2 - PET bottle cap fitted with a valve for easy pouring of non-carbonated liquids according to Fig. 2.

This example is the same as Example 1 except that the valve 2 with valve 2.3 is supplemented with a suction hose 5 for supplying air above the liquid.

Claims (4)

Bottle closure, in particular PET bottles, provided with a valve for easy pouring of fluids, characterized in that it comprises a nut (2.1) having a valve seat (2.8) formed on one side of the thread (2.9) and on the other side the thread (2.9) is formed by an annular ring for the spring (2.4) and a notch (2.6) for movable mounting of the sleeve (2.2), furthermore, on the periphery of the nut (2.1) is one or more shaped grooves (6) (2.2), on the nut (2.1) there is a slipped sleeve (2.2) having a central hole for the valve stem (2.3) and openings for the liquid outlet, further a shoulder for the spring (2.4) and a notch (2.7) for its positioning, A spring (2.4) is inserted between the nut (2.1) and the sleeve (2.2) and the valve (2.3) is fixed in the sleeve (2.2) and passes into the nut (2.1) and engages the seat (2.8) which seals. Bottle closure according to claim 1, characterized in that the shaped groove (6) is formed by a mounting groove (6.1), a screw groove (6.2), a straight groove (6.3) and a stop (6.4). Bottle closure according to claim 1 or 2, characterized by a suction hose (5) for supplying air above the liquid. Bottle closure according to one of Claims 1 to 3, characterized in that the sleeve (2.2) is screwed onto the surface.