Dispensing – Collapsible wall-type container – With wall-collapsing means
Patent
1983-01-21
1984-11-27
Skaggs, H. Grant
Dispensing
Collapsible wall-type container
With wall-collapsing means
222 1, 222105, 2223865, 222405, 222263, 222334, B65D 3528
Patent
active
044846975
ABSTRACT:
A method and apparatus for dispensing a liquid efficiently and completely, and in a manner which prevents direct contact with potentially deleterious propellents. The liquid to be dispensed is placed within a collapsible bag having flexible walls and the bag is supported within a container having relatively rigid walls. A source of vacuum pressure is connected to the bag through a flexible conduit and through a weighted connector. The connector defines a port in communication with the conduit and in engagement with and floating in the liquid within the bag. The connector and conduit thereby keep the liquid in constant communication with the vacuum source. Vacuum withdraws the liquid from the bag through the conduit and the port while the connector is maintained in fluid communication with the liquid as the bag collapses as a result of the action of the vacuum force and the weighted connector. Substantially the entire volume of liquid is withdrawn from the collapsing bag, and the connector includes means to assure the continuous flow of fluid through the connector and conduit when the connector engages with the flexible bag.
REFERENCES:
patent: 219440 (1879-09-01), Boles et al.
patent: 3017883 (1962-01-01), Dickinson
patent: 3171571 (1965-03-01), Daniels
patent: 3211349 (1965-10-01), Prussin et al.
patent: 4375864 (1983-03-01), Savage
Shasta Beverages, Inc.
Skaggs H. Grant
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