Pouring closure for the neck of a canister or any container for controlled multi-sided pouring
This pouring closure permits controlled multi-side pouring by means of a canister spout. The pouring closure consists of a spout attachment ( 2 ), which forms a channel ( 14 ), which is reduced in size with respect to the spout and an upper outer edge of which forms a protruding drop lip ( 11 ). A closure cover ( 1 ), which acts as a jet former, forms a pipe ( 4 ), which extends downward and which fits into a channel ( 14 ) on the spout attachment ( 2 ) in a sealing manner. The pipe ( 4 ) extending downward has a lateral window ( 5 ), which extends at least around 90° of the pipe circumference. The remaining pipe circumference is doubled-walled. The interior thus formed leads toward the outside in the axial direction at the lower end of the pipe ( 4 ) as an air channel ( 7 ), and the air channel ( 7 ) likewise leads toward the outside only in the upper region of the window ( 5 ) laterally on both sides of the window. Thus, pouring can occur over each point of the drop lip ( 11 ) with a jet that always remains constant and with sufficient pressure equalization in the canister during the entire pouring process.
1. A pouring closure for the neck of a canister, container or tube, comprising a neck attachment ( 2 ) and an associated closure cap ( 1 ) as a jet former, wherein a tube ( 4 ) having a circumference and located on the closure cap ( 1 ) extends downward and sealingly into a tubular channel ( 14 ) arranged in the interior of the neck attachment ( 2 ) and which tube ( 4 ) comprises a window ( 5 ) as a pouring mouth, which window ( 5 ) extends at least around a part of the circumference of tube ( 4 ) and wherein the closure cap ( 1 ) is axially extendable within the neck attachment ( 2 ) until the window ( 5 ) lies above an upper edge of the neck attachment ( 2 ) whereby the window ( 5 ) serves as the pouring mouth and jet former, and the pouring closure is closed when the closure cap ( 1 ) is fully inserted down into the neck attachment ( 2 ) which causes the window ( 5 ) to seal against an inner wall of the tubular channel ( 14 ) wherein the window ( 5 ) in the tube ( 4 ) extends around a circumferential area of between at least 90° and 180° of the circumference of the tube ( 4 ), while the remainder of the circumference of tube ( 4 ) is double-walled, so that either in this remaining circumference of tube ( 4 ) or within or outside of channel ( 14 ), arranged coaxially or parallel beside channel ( 14 ), at least one air channel ( 7 ) is formed which opens outwards at a lower end of tube ( 4 ) and opens outwards laterally on a right side, or a left side, or both sides of window ( 5 ), so that a controlled multi-side pouring out of liquid and at the same time corresponding intake of air into the canister is possible over the entire circumference of window ( 5 ), that is over the left side of the window ( 5 ) or over the right side of the window ( 5 ) and over any section in between.
2. The pouring closure for the neck of a canister or container according to claim 1 , characterized in that the at least one air channel ( 7 ) is formed in the remaining tube circumference of the tube ( 4 ), wherein the remaining tube circumference is double-walled apart from the window ( 5 ), and wherein the tube ( 4 ) forms a further tube wall ( 6 ) in its interior, wherein the intermediate space between the two tube's ( 4 ) walls opens outwards in the axial direction as a ventilation channel ( 7 ) at the lower end of the tube ( 4 ), and only opens outwards laterally on both sides in the upper region of the window ( 5 ), so that controlled multi-side pouring is possible.
3. The pouring closure for the neck of a canister or container according to claim 1 , characterized in that the channel ( 14 ) on the neck attachment ( 2 ) on its upper end is forming an outer edge which forms a drip lip ( 11 ), wherein this outer edge forms a sharp radial projection, under which the neck attachment ( 2 ) is tapered ( 12 ) through a wall extending obliquely downwards, while a shoulder ( 13 ) is formed at the lower end of the taper ( 12 ).
4. The pouring closure for the neck of a canister or container according to claim 1 , characterized in that the neck attachment ( 2 ) forms a cap with an internal thread ( 15 ) for attachment to the canister neck.
5. The pouring closure for the neck of a canister or container according to claim 1 , characterized in that the neck attachment ( 2 ) forms a cap with a latching means on its inner side, for snapping engagement with the canister neck.
6. The pouring closure for the neck of a canister or container according to claim 5 , characterized in that the latching means on the inner side of the cap consist of a groove extending along the circumferential line for snapping over a circumferential bead or edge projecting outward on the canister neck.
7. The pouring closure for the neck of a canister or container according to claim 1 , further including a drip lip ( 11 ) on neck attachment ( 2 ), characterized in that the closure cap ( 1 ) has an external thread ( 8 ) on its downwardly-extending tube ( 4 ) that may be brought into engagement with at least two guide ribs ( 18 ) on the inner wall of the channel ( 14 ) at the neck attachment ( 2 ), so that the closure cap ( 1 ) may be rotated 180° from a sealing position to a pouring position, whereby a liquid jet is pourable through window ( 5 ) in tube ( 4 ) and above the drip lip ( 11 ) on the neck attachment ( 2 ).
8. The pouring closure for the neck of a canister or container according to claim 5 , further including a drip lip ( 11 ) on neck attachment ( 2 ), characterized in that the closure cap ( 1 ) comprises an axial guide rib or a guide groove on tube ( 4 ), which may be brought into engagement with at least one matching guide groove or guide rib on the inner wall of the channel ( 14 ) of neck attachment ( 2 ), so that the closure cap may be brought into the pouring position by lifting it from a sealing or closed position to an open position in which a liquid jet may be poured through the window ( 5 ) in tube ( 4 ) over the drip lip ( 11 ), whereby pouring is enabled in all directions between the two sides of the pouring closure that are offset by 90°, wherein the pouring closure may engage with tube ( 4 ) in both the open and closed positions, in correspondence with the latching means on the tube ( 4 ) of the closure cap ( 1 ) and the channel ( 14 ) of the neck attachment ( 2 ).
9. Pouring closure for the neck of a canister or container according to claim 1 , characterized in that the closure cap ( 1 ) comprises at least one downwardly-projecting clamping cone ( 16 ) on a breakable tamper-proof plate ( 10 ) in the region outside its downwardly extending tube ( 4 ), wherein the at least one clamping cone ( 16 ) may engage in the locked position of the closure cap ( 1 ) in a snap-in hole ( 19 ) serving as a detent hole on the neck attachment ( 2 ), wherein, following this clamping, the closure cap ( 1 ) may only be brought out of the closed position by the breaking of at least one material bridge ( 9 ) serving as a defined breaking point on the plate ( 10 ).
10. Pouring closure for the neck of a canister or container according to claim 1 , characterized in that the closure cap ( 1 ) forms part of a circular disc which, viewed from above, with a separate banana-shaped part ( 10 ) of a circular disc attached via material bridges ( 9 ) to the other part of the circular disk of the closure cap ( 1 ) which adds the missing part to form a full circular disc when seen from above, while the separate part ( 10 ) remains as a tamper-proof facility attached to the neck attachment ( 2 ), while the circular disc viewed from above in the pouring position shows a missing segment, so that an opening for the pouring jet remains free in an overhead position.
11. Pouring closure for the neck of a canister or container according to claim 1 , characterized in that the closure cap ( 1 ) has on its upper side a grip ( 3 ) extending diametrically over the upper side of the closure cap ( 1 ).
12. Pouring closure for the neck of a canister or container according to claim 1 , characterized in that the neck attachment ( 2 ) forms a drip lip ( 11 ) projecting radially outwards along at least 180° of its circumference and which is offset with respect to its other radius, and that the region under this drip lip ( 11 ) at the neck attachment ( 2 ) is tapered over a height of 2 to 5 mm, while a shoulder ( 16 ) is formed at the lower end of the taper ( 12 ) for the exact acceptance of the correspondingly-shaped lower edge of the attachable closure cap ( 1 ).