Container provided with a closure
First Claim
1. An apparatus, comprising:
- a flexible container for a flowable product which can be dispensed in portions by the application of pressure to the container, said container having a first opening; and
a closure for the container, said closure being positioned over said opening and including an outlet valve which can be actuated by pressure from within said container, said closure with said outlet valve comprising;
a first member including a plug having a face with a sealing surface, and a support structure for said plug;
a second member having a second opening aligned with said plug, said plug being receivable in said second opening;
means defining a product flow path extending from said first opening to a position adjacent said plug such that communication with said second opening is blocked by said plug when said plug is received in said second opening;
means for moving said first and second members relative to each other from a position in which said plug is in engagement with said second opening to block said communication to a position in which said plug is spaced from said second opening to allow communication between said product flow path and said second opening such that said product can flow from said container, said moving means permitting one of said first and second members to move, and means defining a pressure flow path extending from said container to a position adjacent said movable member for transmitting pressure from said container to said movable member to space said plug from said second opening, said moving means causing said pressure flow path and said product flow path to be completely separate from each other when said plug is engaged in said second opening and when said plug is spaced from said second opening.
1 Assignment
0 Petitions
Accused Products
Abstract
In an outer container (1) there is disposed an inner container (2) which contains the product to be withdrawn in portions. On the top of a container cover (4) there is a diaphragm-like body (6) with a bore (7) for the emergence of the product. When not in use, the diaphragm-like body (6) lies tightly against a plug (8) which closes the bore (7). The plug (8) is joined by ribs (10) to a ring (11) to which the inner container, consisting of soft material, is fastened. The container cover (4) and the ring (11) are joined together by interlocking. When the outer container (1) is squeezed a pressure develops in the interstice between the two containers, which interstice can be shut off by an air valve (15), and by this pressure a certain amount of the product is forced out of the inner container (2) between the plug (8) and the yielding diaphragm-like body (6), whereupon the diaphragm-like body (6) returns again to the sealing position. The product is thus always protected against the access of air.
65 Citations
16 Claims
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1. An apparatus, comprising:
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a flexible container for a flowable product which can be dispensed in portions by the application of pressure to the container, said container having a first opening; and a closure for the container, said closure being positioned over said opening and including an outlet valve which can be actuated by pressure from within said container, said closure with said outlet valve comprising; a first member including a plug having a face with a sealing surface, and a support structure for said plug; a second member having a second opening aligned with said plug, said plug being receivable in said second opening; means defining a product flow path extending from said first opening to a position adjacent said plug such that communication with said second opening is blocked by said plug when said plug is received in said second opening; means for moving said first and second members relative to each other from a position in which said plug is in engagement with said second opening to block said communication to a position in which said plug is spaced from said second opening to allow communication between said product flow path and said second opening such that said product can flow from said container, said moving means permitting one of said first and second members to move, and means defining a pressure flow path extending from said container to a position adjacent said movable member for transmitting pressure from said container to said movable member to space said plug from said second opening, said moving means causing said pressure flow path and said product flow path to be completely separate from each other when said plug is engaged in said second opening and when said plug is spaced from said second opening. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus, comprising:
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a flexible container for a flowable product which can be dispensed in portions by the application of pressure to the container, said container having a first opening; and a closure for the container, said closure being positioned over said first opening and including an outlet valve which can be actuated by pressure from within said container, said closure with said outlet valve comprising; a housing having a cavity; a second opening formed in said housing; a plug disposed in said cavity within said housing, said plug having one end having a face with a sealing surface; a support structure for said plug for movably supporting said plug such that said plug can move between a first position in which said plug sealing surface engages said second opening and a second position in which said plug is spaced from said second opening, said support structure including a reaction surface attached to said plug on an end opposite said sealing surface, a flexible diaphragm-like body attached to said reaction surface, said flexible diaphragm-like body having an outer periphery sealingly connected to said housing to form a chamber having said diaphragm-like body at one end and said second opening at another end; a product flow path defined in said housing and extending from said container to said chamber, said product flow path opening into said chamber at a position between said second opening and said reaction surface; and an air valve disposed in said reaction surface and communicating from ambient to said product flow path. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification