Fluid dispenser having a removable sealing diaphragm

Details Fluid dispenser having a removable sealing diaphragm Fluid dispenser having a removable sealing diaphragm

1991-03-12

1992-05-12

Huppert, Michael S.

Dispensing

With cutter and/or punch

To form dispensing opening in container

222 91, 222105, B67B 724

Patent

active

051119706

ABSTRACT:
A fluid dispenser operable between opened and closed positions is adapted for attachment to a flexible bag that contains a liquid, particulate matter or other fluid material, where an opening is provided through a wall of the bag into an interior of the dispenser. The dispenser is initially closed to fluid flow, for the purpose of storage and shipping, by a diaphragm that is cut the first time the dispenser is operated to its opened position. A specially designed diaphragm cutting track and cooperative knife shape cause a cut diaphragm flap to be pushed out of the fluid flow path through the dispenser.

REFERENCES:
patent: 2947315 (1960-08-01), Connell
patent: 3642172 (1972-02-01), Malpas
patent: 4322018 (1982-03-01), Rutter
patent: 4325496 (1982-04-01), Malpas
patent: 4355737 (1982-10-01), Pongrass et al.
patent: 4469249 (1984-09-01), Malpas et al.
patent: 4475670 (1984-10-01), Rutter
patent: 4493438 (1985-01-01), Rutter
patent: 4600127 (1986-07-01), Malpas et al.
patent: 4619377 (1986-10-01), Roos
patent: 4624392 (1986-11-01), Malpas et al.

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