Double shut-off fluid dispenser element

Details Double shut-off fluid dispenser element Double shut-off fluid dispenser element

1986-03-10

1987-10-20

Schwadron, Martin P.

Fluid handling

Systems

Flow path with serial valves and/or closures

285350, 222553, 2511496, F16L 2900

Patent

active

047007443

ABSTRACT:
In a bag-in-box fluid dispensing system including a bag fitment sealed over an opening in the fluid bag, a normally closed valved intermediate element sealed in the bag fitment, and a normally closed valved dispenser removably coupled to the valved intermediate element, the intercoupling of the intermediate element and the valved dispenser causing the valves in each unit to open for the passage of fluid from the fluid bag, an improved intermediate element having but two components, the improved element including a housing having a long skirt for passing through the bag fitment and into the fluid bag to prevent blocking of the bag opening, a valve set formed by the deformation of a circular opening in the end of the housing, and a normally closed axially movable valve member for mating with the valve seat and having a valve spring bias provided by the deformation of a novel hemispherical resilient member latched in the bore of the housing.

REFERENCES:
patent: 2263293 (1941-11-01), Ewald
patent: 3595445 (1971-07-01), Buford
patent: 3726282 (1973-04-01), Patel
patent: 3729023 (1973-04-01), Hammond
patent: 4137930 (1979-02-01), Scholle
patent: 4169548 (1979-10-01), Bond
patent: 4245760 (1981-01-01), Stevenson et al.
patent: 4445539 (1984-05-01), Credle
patent: 4475566 (1984-10-01), Haines
patent: 4629159 (1986-12-01), Wellenstam

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