Dispensing – With cutter and/or punch – To form dispensing opening in container
Patent
1975-07-07
1976-12-07
Knowles, Allen N.
Dispensing
With cutter and/or punch
To form dispensing opening in container
B65D 3520
Patent
active
039957721
ABSTRACT:
A non-pressurized dispenser for fluid products includes a cylindrical plastic housing having a compressible body portion and a removable cap portion having a hollow core needle and dispensing nozzle. A disposable product container having flexible side walls is contained within the body portion. When the cap portion is seated on the body portion, the hollow core needle penetrates the container to establish fluid communication between the container and the nozzle. When the housing is compressed air trapped between the container and the housing causes the container to be compressed and the fluid product contained therein to be forced from the container through the core of the needle and out through the nozzle. A check valve in the housing allows air to enter the housing to replace the volume vacated by the dispensed fluid product so that the container can be completely emptied without the housing having to be completely compressed.
REFERENCES:
patent: 1617066 (1927-02-01), Lush
patent: 2082706 (1937-06-01), Maggiora
patent: 2139097 (1938-12-01), Pigyerez
patent: 3223289 (1965-12-01), Bouet
patent: 3314429 (1967-04-01), Boehm et al.
patent: 3731844 (1973-05-01), Baker
Knowles Allen N.
Stack, Jr. Norman L.
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