Dispensing – Collapsible wall-type container
Patent
1984-06-01
1986-10-14
Rolla, Joseph J.
Dispensing
Collapsible wall-type container
222213, 222490, 13751215, 1375124, 137844, 137494, B65D 3514
Patent
active
046167684
ABSTRACT:
The invention relates to a container for flowable or otherwise extrudable materials, the container having a discharge barrier which comprises a dividing wall dividing the container space into an outer chamber which is in communication with a dispensing opening of the container and into a storage chamber in which the contents can be subjected to pressure for dispensing from the opening and can thereafter again be relieved of pressure. The dividing wall is formed with a membrane section having at least one valve opening which upon pressure loading of the membrane section from the side of the storage chamber opens against a restoring force exerted by a membrane mounting and which upon relief from pressure automatically closes again under the restoring force. The dividing wall is also formed with a holding element which is connected to the container in a manner that takes up manufacturing tolerances. Additionally, the dividing wall is formed with the mounting for its membrane section, the mounting being formed so as to be of relatively stable shape and being itself carried by the holding element. In the result, the mounting carries the membrane section in a manner largely uninfluenced by the connecting conditions between the holding element and the container.
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patent: 4133457 (1979-01-01), Klassen
Heim Louise S.
Lingner & Fischer GmbH
Rolla Joseph J.
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