Composite disk valve for dispensing cartridges

Details Composite disk valve for dispensing cartridges Composite disk valve for dispensing cartridges

1987-12-07

1989-05-16

Rolla, Joseph J.

Dispensing

With discharge assistant

Insertable cartridge or removable container

222387, 222490, 222494, 222213, 215232, B65D 8854

Patent

active

048302317

ABSTRACT:
In a cartridge dispenser for dispensing mayonnaise-like food sauces in measured quantities, a laminated end disk which provides valving for the dispensed material. The end disk includes a paperboard layer for stiffness and rigidity, a polyethylene disk on the paperboard for shielding it from oils, a polyester disk beneath the paperboard for providing the valve, and an inner polyethylene disk allowing the composite disk to be secured on the end of the cartridge dispenser with a food grade adhesive. The polyester disk includes three equality spaced valves each formed by crosshair slits which provide vanes that open when material is being dispensed and quickly and cleanly close at the end of each dispensing stroke.

REFERENCES:
patent: 4171084 (1979-10-01), Smith
patent: 4432473 (1984-02-01), MacEwen
patent: 4448345 (1984-05-01), Helms

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