Dispensing – With recorder – register – indicator – signal or exhibitor
Patent
1974-11-14
1976-11-02
Knowles, Allen N.
Dispensing
With recorder, register, indicator, signal or exhibitor
222 94, 222193, B67D 554
Patent
active
039891658
ABSTRACT:
An aerosol container having a propellant means and a flexible product bag enclosed within a flexible deformable plastic container such as polyethylene. The propellant causes the product in the bag to discharge which reduces the volume of the product in the enclosing container thus reducing the pressure of the gas within the container to subatmospheric pressure. This collapses the container and is an indication that the contents have been used.
REFERENCES:
patent: 3602397 (1971-08-01), Marand
patent: 3730437 (1973-05-01), Rousseloti
DuPuis Clyde F.
Shaw Fred B.
Continental Can Company Inc.
Dittmann William A.
Kerwin Joseph E.
Knowles Allen N.
Kowalik John J.
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