Dispensing – Collapsible wall-type container – Plural container and/or compartment
Patent
1994-09-08
1996-10-22
Kaufman, Joseph
Dispensing
Collapsible wall-type container
Plural container and/or compartment
222 95, 222105, 222137, 2221456, 222327, 222390, 222459, B65D 3522
Patent
active
055668607
ABSTRACT:
A cartridge for use in a dispensing gun for simultaneously dispensing and mixing a pair of chemically reactive fluid components maintained in separate chambers in the cartridge. One of the fluid components is contained in an elongated tube formed of a thin flexible film which is placed within a first chamber located either coaxially within an outer annular second chamber containing the other fluid component, or in a side-by-side relationship to the second chamber. Pistons are slidably mounted within the two chambers for simultaneously dispensing the fluid components therefrom when moved forward by plungers of the dispensing gun. In a first embodiment, the front end surface of one of the pistons is recessed from an outer end surface of the other piston to form a void space for collecting the collapsed flexible film therein to permit the outer piston to reach the full extent of its stroke and expel all of the fluid components from both the chambers. In a second embodiment, the first chamber containing the flexible film extends forwardly beyond the second chamber forming a void space beyond an end wall of the second chamber for collecting the collapsed compacted film.
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Schiltz William C.
Wasmire Frederick D.
Kaufman Joseph
Liquid Control Corporation
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