Common head having an offset partition for use with multi-component dispensing tools and a tubular liner arranged for locating within the common head

A manifold for use in combination with a dispensing tool having multiple barrels arranged in side-by-side relationship, the multiple barrels including a first barrel having a larger cross-sectional size for containing and discharging a first component, and a second barrel having a smaller cross-sectional size for containing and discharging a second component reactive with the first component, said manifold comprising:

• a. a first inlet opening arranged to receive said first component from said first barrel and a second inlet opening arranged to receive said second component from said second barrel;
• b. a rigid-walled tube arranged for receiving the first and second components from the first and second barrels, a length for separate passage of the first and second reactive components therethrough, and a discharge end;
• and,
• c. an offset partition provided to enable separate passage of said first and second components through said tube, said offset partition positioned within said tube to define a larger pathway having a larger cross-sectional size for passage of the first component therethrough, and a smaller pathway having a smaller cross-sectional size for passage of the second component therethrough, said tube discharging the first and second reactive components in a predetermined fixed ratio.

A flexible liner for use in combination with a cartridge assembly arranged to be retained within the material containment unit of a dispensing device, the cartridge assembly including first and second cartridges for containing and maintaining separately first and second reactive components which may be discharged from the cartridges in response to actuation of the dispensing device, each cartridge having a forward discharge aperture in fluid communication with the inlet end of a common head common to the first and second cartridges, the common head including a rigid-walled outlet tube partitioned into a first pathway for passage of the first reactive component therethrough and a second pathway for passage of the second reactive component therethrough to deliver the first and second reactive components to a mixing chamber for mixing and dispensing the first and second reactive components, said flexible liner comprising:

• a. a flange portion arranged to be affixed to an interior surface of the common head;
• b. an elongated tubular portion extending from said flange portion and disposed within one of the first and second pathways of the outlet tube, said tubular portion having an outlet end extending beyond an outlet end of the outlet tube, said tubular portion being openable for receipt and passage therethrough of one of the first and second reactive components during dispensing and collapsible within the one of the first and second pathways during interruption of dispensing;
• and,
• c. an outlet valve positioned at the outlet end of said elongated tubular portion, said outlet valve normally in a closed position and moveble from said closed position to an open position in response to pressure exerted thereupon by one of the first or second reactive components during dispensing.

A system for packaging and dispensing two-component fluids such as industrial adhesives and sealants, said system comprising:

• a. a first film package for containing a first component therein and having a larger cross-sectional size and an outlet end, said first film package being compressible as the first component is dispensed therefrom;
• b. a second film package for containing a second component reactive with the first component, and having a smaller cross-sectional size and an outlet end, said second film package being compressible as the second component is dispensed therefrom;
• c. a manifold having first and second inlet openings in communication with said first and second film packages, and arranged to receive the first and second components therefrom, said manifold including a rigid-walled tube having a length for passage of the first and second components therethrough;
• d. a partition positioned within said tube to define a first pathway having a larger cross-sectional size for passage of the first component therethrough, and a second pathway having a smaller cross-sectional size for passage of the second component therethrough;
• and,
• e. wherein for each collapsible film package, a rigid sleeve is provided to retain said collapsible film package therein, wherein each rigid sleeve is arranged to be retained within the material containment unit of a dispensing device.