Patent SI-22164-A (SI)
Title: Valve manufactured simultaneously with or subsequently to plastic bottle
Inventor: MINIC RADOVAN
IPC: B65D39/00
Filed: 2005-12-07
Abstract: The subject of invention is a valve, manufactured simultaneously with or subsequently to a plastic bottle, which can be made of plastic dosed for the plastic bottle, or the dose of the plastic comes extra for it from its side of the plastic bottle whose part it makes. In the first manner, a possibility exists to spread out the plastic for the half of a ball mantle by rotation into the ball mantle. In this manner, it can be manufactured subsequently onto the already made plastic bottle. There remains still                                        a possibility to attach a separately manufactured valve to the mantle of a plastic bottle neck. The valve consists of the ball mantle which lies to the half in the plastic bottle neck and is joined with it along the half of the common perimeter. Under this joint, the ball mantle is separated or disunited in a manner that the lower half of the ball mantle is completely free to make a half-turn around the central axis of the ball, when the ball mantle is ready to be coated from both separated sides for a                                           quarter of the ball mantle. So the edge of the ball mantle, which is free and lies close to the joint of the ball with the plastic bottle neck, can be turned around the central axis for a half-turn, to coat, in this way, the lower quarter of the ball mantle on the side of the open edge over another stiff lower quarter of the ball mantle, which is to be found along the half-perimeter together with the stiff half of the upper half of the ball mantle, and the free edge of the ball mantle can be clamped into a                                       half-ring of the edge of the mantle of the plastic bottle neck, where it has not been joined with the mantle of the valve ball yet. In the same manner, the upper half of the ball mantle can be coated on the other lower side in the case of change of functions, which is required by the position of outflow openings located on one of the halves of the ball mantle and by the appropriate shape of a functional edge element, which can be a groove in the one case or a grooved cover of the exterior half-ring of the                                        edge of the mantle of the plastic bottle neck in the other case. The thin mantle of the quarter of the ball to be coated is bent up upwards around the perimeter of the outflow openings and the stiff quarter of the thick ball mantle is rounded inwards, so that when coating the mantle, the openings sit down conformably, neutralizing in this way the forces of positive pressure of a gas within the plastic bottle in all respects, both the strength and the sealing ones. In addition, the said groove is serving                                          alternately as a groove to lead the liquid, flown through the valve, back into the plastic bottle, or as a cover which is caught against the edge of the mantle of the plastic bottle neck to produce a closed position of the valve and covers completely the folded or tipped-down half of the ball mantle with openings. The valve is thus appropriate for all kinds of plastic bottles which are blown and applied for liquids, and is more economical for production and installation, more practical, safe and sparing                                          with the overflown liquid than the so far known solutions. The limitation of this valve is the single use of the plastic bottle, i.e. the consumption of the original liquid from the plastic bottle.