Dispensing – Resilient wall – With flow controllers or closures
Patent
1981-11-06
1983-10-11
Tollberg, Stanley H.
Dispensing
Resilient wall
With flow controllers or closures
222496, B05B 1104
Patent
active
044087020
ABSTRACT:
An automatic dispensing cap for dispensing product contained in a squeeze-type container. A two-way valve-head comprising an upper disc closure is constructed so that it seats on the top edge of the inverted conical spout of the cap. In a preferred embodiment, the disc closure has a centrally-located air bore and depending tubular stem. Upon application of manual squeeze pressure, the valve-head unseats from the cap spout allowing product to flow through. When the squeeze pressure is released, a lower cruciform portion of the two-way valve-head acts as a spring to seat the upper disc closure, cutting off the flow of product, and allowing air to reenter the container through the central disc air bore and the tubular stem. An inverted cup-shaped check-valve closes the central air bore of the tubular stem during the dispensing phase, to prevent product from exiting therethrough. In another embodiment, primarily useful with a squeeze tube, the central disc and central stem are solid; and the check-valve is eliminated. An alternatively shaped container is disclosed which is designed to be hung in inverted position.
REFERENCES:
patent: D246156 (1977-10-01), Muscatiello et al.
patent: 1883716 (1932-10-01), Greenlees
patent: 3874563 (1975-04-01), Schwartzman
patent: 4266698 (1981-05-01), Rausing
Pugh Martha G.
Tollberg Stanley H.
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