Automatic dosing dispenser employing atmospheric vent to improve

Details Automatic dosing dispenser employing atmospheric vent to improve Automatic dosing dispenser employing atmospheric vent to improve

1993-06-24

1994-05-24

Shaver, Kevin P.

Dispensing

Rockable or weighted

68 17R, 222481, 222500, B67D 564

Patent

active

053140982

ABSTRACT:
An improved dispenser for reliably adding fluid rinse additive to the rinse water in an automatic washing machine. The dispenser includes a filling/dispensing aperture within the uppermost portion of a container for adding the fluid additive to the dispenser and for allowing the rinse water to enter and exit the dispenser. The dispenser is provided with a manually closable centrifugally openable valve for closing the filling/dispensing aperture in the container after it has been filled with additive. The valve maintains substantially all of the fluid additive within the dispenser throughout the wash cycle until the dispenser is opened by the centrifugal force during the spin empty portion of the wash cycle. The dispenser further includes a vent which is operatably associated with the valve to vent the interior of the container to the atmosphere whenever the valve is in its closed position. The vent is positioned within the container so that it cannot be submerged in a fluid additive regardless of the orientation of the container so long as the valve remains in its closed position.

REFERENCES:
patent: T993001 (1980-04-01), McCarthy
patent: 2956709 (1960-10-01), Nison et al.
patent: 2970463 (1961-02-01), Johnston
patent: 3108722 (1963-10-01), Torongo, Jr. et al.
patent: 3316741 (1967-05-01), Harlow et al.
patent: 3620054 (1971-11-01), Drews et al.
patent: 3699785 (1972-10-01), Waugh
patent: 3888391 (1975-06-01), Merz
patent: 4656844 (1987-04-01), Mulder et al.
patent: 5033643 (1991-07-01), Schumacher
patent: 5040311 (1991-08-01), Roy

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