公开(公告)号：EP0879181A1

公开(公告)日：1998-11-25

申请号：EP96940682.0

申请日：1996-11-15

申请人： Knight, Dudley John Travers ,  Van Den Broek, Luc ,  Heijenga, Ben

发明人： Knight, Dudley John Travers ,  Van Den Broek, Luc ,  Heijenga, Ben

IPC分类号： B65D49

CPC分类号： B65D49/00

摘要： A flow control method allowing for ready flow of liquid out of a container while inhibiting flow of liquid back into the container having two paths in an outlet from the container: the first path passing from the interior of the container to the outside thereof, the first path having a first cross section and a first length; the second path passing from the exterior of the container to the inside thereof, the second path having a second cross section and a second length; characterised in that the cumulative effect of the relationship between the first cross section (D) and first length (L) of the first path (15), and the second cross section (d) and second length (l) of the second path (16) is such as to provide on the one hand relatively low impedance to flow of liquid out of the container (30) by way of the first path (15) with a consequential entry of air into the container (30) by way of the second path (16); and on the other hand relatively high impedance to flow of liquid into the container (30) by way of the first path (15) with consequential displacement of air out of the container (30) by way of the second path (16). The first path (15) incorporates at least one change in direction (15A) in passing from the interior of the container (30) to the outside of the container so as to resist the insertion into the container of a liquid supply duct by way of the first path (15). The invention further embodies a device for undertaking the method, a container incorporating such a device, and a closure for a container including a capsule and such a device.

公开(公告)号：EP0879181B1

公开(公告)日：2005-02-02

申请号：EP96940682.6

申请日：1996-11-15

申请人： Knight, Dudley John Travers ,  Van Den Broek, Luc ,  Heijenga, Ben

发明人： Knight, Dudley John Travers ,  Van Den Broek, Luc ,  Heijenga, Ben

IPC分类号： B65D49/02 ,  B65D47/32

CPC分类号： B65D49/00

摘要： A flow control method allowing for ready flow of liquid out of a container while inhibiting flow of liquid back into the container having two paths in an outlet from the container: the first path passing from the interior of the container to the outside thereof, the first path having a first cross section and a first length; the second path passing from the exterior of the container to the inside thereof, the second path having a second cross section and a second length; characterised in that the cumulative effect of the relationship between the first cross section (D) and first length (L) of the first path (15), and the second cross section (d) and second length (l) of the second path (16) is such as to provide on the one hand relatively low impedance to flow of liquid out of the container (30) by way of the first path (15) with a consequential entry of air into the container (30) by way of the second path (16); and on the other hand relatively high impedance to flow of liquid into the container (30) by way of the first path (15) with consequential displacement of air out of the container (30) by way of the second path (16). The first path (15) incorporates at least one change in direction (15A) in passing from the interior of the container (30) to the outside of the container so as to resist the insertion into the container of a liquid supply duct by way of the first path (15). The invention further embodies a device for undertaking the method, a container incorporating such a device, and a closure for a container including a capsule and such a device.