Squeeze bottle dispenser with air check valve on cover

Details Squeeze bottle dispenser with air check valve on cover Squeeze bottle dispenser with air check valve on cover

1977-02-22

1978-07-25

Reeves, Robert B.

Dispensing

Resilient wall

Fluid pressure generating pump or pulsator and/or removable...

222212, 239327, B05B 1104, B65D 4734

Patent

active

041024761

ABSTRACT:
A squeeze bottle type dispenser has a resiliently collapsible container for the liquid to be dispensed. A cover on the container, said cover means has a flexible resilient central portion flexible outwardly of the cover away from the container. A dispensing valve member on the cover has a dispensing orifice therein, and an interior surface facing into the container. A dispensing valve body is fixed in position within the container adjacent the cover and has an exterior surface complementary in shape to that of the interior surface of the dispensing valve member and with which the interior surface of the valve member tightly engages when the parts of the dispenser are in the non-dispensing positions. The interior of the valve body is hollow and the valve body has product dispensing apertures opening from the hollow interior through the exterior surface thereof and which are normally covered by the valve member when the parts of the dispenser are in the non-dispensing positions. The dispenser has an air return flow path therethrough and a valve therein opening the air return flow path when the pressure on the outside of the container is greater than the pressure on the inside of the container. A dip tube or a collapsible bag within the container is connected to the valve body for delivering liquid to the hollow interior of the valve body when the container is collapsed.

REFERENCES:
patent: 3160329 (1964-12-01), Radic et al.
patent: 3176883 (1965-04-01), Davis, Jr.
patent: 3189282 (1965-06-01), Corsette
patent: 3223289 (1965-12-01), Bouet
patent: 3794247 (1974-02-01), Corsette

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