Closeable dispensing device

Abstract

A closeable dispensing device for dispensing a liquid, viscous or pasty medium contained in a container, has an outlet opening which serves for dispensing the medium. The device further has a channel that extends between the container and the outlet opening, and a closure device which is inserted into an opening of the dispensing device. The closure device is movable relative to the opening and is intended for closing the channel. The closure device and a surface bounding the opening come into contact only via elevations provided on the closure device or on the surface adjacent to the opening.

1 . A closeable dispensing device for dispensing a medium selected from the group consisting of liquid mediums, viscous mediums and pasty mediums contained in a container, the closeable dispensing device comprising: 
 a spout having an outlet opening formed therein serving for dispensing the medium and a closure opening formed therein and bounded by a surface of said spout;    a channel extending between the container and said outlet opening;    a closure device disposed in said closure opening and movable relative to said closure opening, said closure device provided for closing said channel; and    elevations disposed on one of said closure device and on said surface bounding said closure opening, said closure device and said surface bounding said closure opening coming into contact only via said elevations.    
   
   
       2 . The dispensing device according to  claim 1 , wherein said channel is composed of a plurality of channel sections which can be moved, at least in part, relative to one another and, in an open state of the dispensing device, are disposed such that a through-channel is formed between the container and said outlet opening and, in a closed state of the dispensing device, are offset in relation to one another such that there is no through-channel formed between the container and said outlet opening.  
   
   
       3 . The dispensing device according to  claim 2 , wherein at least one of said channel sections runs through said closure device, and said one channel section together with said closure device can be moved relative to other ones of said channel sections.  
   
   
       4 . The dispensing device according to  claim 1 , wherein a part of said closure device which is disposed in said closure opening is a cylindrical element having a longitudinal axis, and the dispensing device can be opened and can be closed by rotation of said cylindrical element about said longitudinal axis.  
   
   
       5 . The dispensing device according to  claim 1 , wherein a part of said closure device disposed in said closure opening is a slide, and the dispensing device can be opened and can be closed by displacement of said slide within said closure opening.  
   
   
       6 . The dispensing device according to  claim 1 , wherein said closure opening receiving said closure device is an opening crossing said channel.  
   
   
       7 . The dispensing device according to  claim 1 , wherein said closure device and said closure opening are configured such that said elevations press against said surface bounding said closure opening or against said closure device, so that neither a liquid nor a gas can pass between said elevations and said closure device and between said elevations and said surface bounding said opening.  
   
   
       8 . The dispensing device according to  claim 1 , wherein said closure device is formed from plastic materials having different properties.  
   
   
       9 . The dispensing device according to  claim 1 , wherein said closure device is composed of a first plastic material, and said elevations or at least an uppermost layer of said elevations are composed of a second plastic material, said first plastic material being a stiff plastic material which can only be insubstantially deformed, if at all, and said second plastic material being a soft and elastically deformable plastic material.  
   
   
       10 . The dispensing device according to  claim 2 , wherein: 
 said channel sections include a first channel section having a first channel opening formed therein and extending between the container and said closure device and a second channel section having a second channel opening formed therein and extending between said closure device and said outlet opening; and    said elevations are disposed such that, in the closed state of said channel: 
 said first channel opening, facing said closure device, is encircled by a first of said elevations; and  
 said second channel opening, facing said closure device, is encircled by a second of said elevations.  
   
   
   
       11 . The dispensing device according to  claim 2 , wherein said elevations include a first elevation encircling said closure device in a front region, and an second elevation encircling said closure device in a rear region.  
   
   
       12 . The dispensing device according to  claim 11 , wherein: 
 said closure device and said surface defining said closure opening together define a pressure-equalizing opening; and    at least one of said first and second elevations encircling said closure device has interruptions formed therein, said interruptions are connected to said pressure-equalizing opening, via which, during opening of the dispensing device, pressure between a container interior and a region surrounding the dispensing device can be equalized.    
   
   
       13 . The dispensing device according to  claim 12 , wherein said pressure-equalizing opening and said outlet opening are different openings.  
   
   
       14 . The dispensing device according to  claim 13 , wherein said pressure-equalizing opening is disposed such that an individual who is opening the dispensing device with his mouth, or who positions said outlet opening in his mouth as the dispensing device is being opened, cannot, or need not, breath in gases which pass out of said pressure-equalizing opening as the container is vented.  
   
   
       15 . The dispensing device according to  claim 13 , wherein said pressure-equalizing opening is a gap formed between said closure device and an end of said closure opening which receives said closure device, said end is adjacent to said first or second elevation having said interruptions.  
   
   
       16 . The dispensing device according to  claim 13 , wherein the dispensing device is constructed such that, in the closed state of the dispensing device, there is no connection between said pressure-equalizing opening and the container.  
   
   
       17 . The dispensing device according to  claim 13 , wherein the dispensing device is constructed such that, during a movement of said closure device which has to be carried out in order to move the dispensing device from the closed state into the open state, first of all a connection is produced between said pressure-equalizing opening and the container, and only then is a connection produced between said outlet opening and the container.  
   
   
       18 . The dispensing device according to  claim 13 , wherein the dispensing device is constructed such that a connection between said pressure-equalizing opening and the container is broken if there is a connection between said outlet opening and the container.  
   
   
       19 . The dispensing device according to  claim 1 , wherein the container is a drink bottle.  
   
   
       20 . The dispensing device according to  claim 1 , wherein said elevations are bead-shaped elevations.  
   
   
       21 . The dispensing device according to  claim 1 , wherein said elevations are formed as ribs disposed on said closure device.  
   
   
       22 . The dispensing device according to  claim 1 , wherein said elevations are webs disposed on said closure device.  
   
   
       23 . The dispensing device according to  claim 1 , wherein said elevations have a semicircular cross section.  
   
   
       24 . The dispensing device according to  claim 1 , wherein said elevations have a semi-oval cross section.  
   
   
       25 . The dispensing device according to  claim 1 , wherein said elevations have a polygonal cross section.  
   
   
       26 . The dispensing device according to  claim 1 , wherein a surface with which said elevations come into contact does not have any depressions assigned to said elevations.  
   
   
       27 . The dispensing device according to  claim 1 , wherein a surface with which said elevations come into contact have depressions assigned to said elevations and said elevations come to lie in said depressions.