Container

Abstract

A container for liquid contents, comprising a compartment ( 4 ) which is defined by flexible walls ( 2, 3 ) and whose volume depends on the relative position of the walls ( 2, 3 ), a flexible duct means ( 22 ), which forms a connection between said compartment ( 4 ) and the surroundings. The duct means is bringable to an open state and to a closed state. The compartment ( 4 ) has a bottom region ( 21 ), in which the liquid contents are essentially collected as the container assumes an upright position. Said walls ( 2, 3 ) are, by being actuated by said contents when collected in said bottom region ( 21 ), adapted to assume a relative position acting for an increase in volume of the compartment ( 4 ), which increase in volume is counteracted by a negative pressure generated in the compartment ( 4 ). The duct means ( 22 ) is adapted to be brought to said closed state in response to the negative pressure generated in the compartment ( 4 ), and is extended from the compartment at an angle to a longitudinal axis of the container.

1 . A container for liquid contents, comprising a compartment ( 4 ) which is defined by flexible walls ( 2 ,  3 ) and whose volume depends on the relative position of the walls ( 2 ,  3 ), a flexible duct means ( 22 ) which forms a connection between said compartment ( 4 ) and the surroundings, the duct means being bringable to an open state and to a closed state, and the compartment ( 4 ) having a bottom region ( 21 ), in which the liquid contents are essentially collected as the container assumes an upright position, 
 characterised in that    said walls ( 2 ,  3 ), by being actuated by said contents when collected in said bottom region ( 21 ), are adapted to assume a relative position acting for an increase in volume of the compartment ( 4 ), which increase in volume is counteracted by a negative pressure generated in the compartment ( 4 ), and    said duct means ( 22 ) is adapted to be brought to said closed state in response to the negative pressure generated in the compartment ( 4 ), and    said duct means ( 22 ) is extended from the compartment at an angle to a longitudinal axis of the container.    
     
     
         2 . The container as claimed in  claim 1 , in which said walls ( 2 ,  3 ) comprise two opposite side walls ( 2 ) which are joined along a common connecting portion ( 5 ) and which in a non-actuated state strive to abut flush with each other.  
     
     
         3 . The container as claimed in  claim 2 , in which the duct means ( 2 ) is formed integrally with said side walls ( 2 ).  
     
     
         4 . The container as claimed in  claim 3 , in which the duct means ( 22 ) is formed of two projecting wall portions ( 23 ), abutting flush with each other, of the side walls ( 2 ), said wall portions ( 23 ) being joined with each other along their edges.  
     
     
         5 . The container as claimed in any one of the preceding claims, in which the duct means ( 22 ) has inner surfaces ( 26 ) which face each other and are made to abut each other in a sealing manner when the duct means ( 22 ) is closed in response to the negative pressure generated in the compartment ( 4 ).  
     
     
         6 . The container as claimed in  claim 5 , in which said surfaces ( 26 ) have a high degree of flatness.  
     
     
         7 . The container as claimed in any one of the preceding claims, wherein the container is made of a material containing a filler of mineral material and a binder of polyolefin material.  
     
     
         8 . The container as claimed in  claim 7 , in which the mineral material is chalk (calcium carbonate).  
     
     
         9 . The container as claimed in any one of the preceding claims, in which a carrying means ( 6 ) is arranged on a first side ( 7 ) of the container.  
     
     
         10 . The container as claimed in  claim 8 , when referring to any one of claims  2 - 4 , in which the carrying means ( 6 ) is arranged in said connecting portion ( 5 ).  
     
     
         11 . The container as claimed in any one of the preceding claims, in which the duct means ( 22 ) is arranged in an outlet area ( 19 ) located on a second ( 20 ) side of the container and at a distance from said bottom region ( 21 ).  
     
     
         12 . The container as claimed in  claim 11 , when referring to  claim 9  or  10 , in which said second side ( 20 ) is opposite to said first side ( 7 ).  
     
     
         13 . The container as claimed in any one of the preceding claims, in which the duct means ( 22 ) is sealed in an unopened state of the container and is openable by cutting or like operation.