Dispensing – Resilient wall – Supply container delivering to receiving chamber
Reexamination Certificate
2011-08-16
2011-08-16
Ngo, Lien T (Department: 3754)
Dispensing
Resilient wall
Supply container delivering to receiving chamber
C222S213000
Reexamination Certificate
active
07997454
ABSTRACT:
A liquid dispensing device includes a storage container and dome pump mechanism attached thereto for metered dispensing. A one-way valve is employed to pull liquid from the storage container into the dome for metering. An exit passageway serves as an output valve. Each time the dome pump housing is depressed, a substantially equal volume of fluid is dispensed from the container. To prevent accidental dispensing, the one-way valve in the dome pump remains normally open and unsealed to allow backflow of liquid back into the storage container pouch when pressure is placed on the dome. The user squeezes the dome and base plate together to seal the one-way valve to urge liquid out through the exit port for actual dispensing. Also, interior pouch force creates backflow through the exit port back into the containment chamber to further prevent leakage.
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ode—H16XQM6PDVgs/root—B...
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LaFlamme Roger J.
Mileti Robert J.
Ngo Lien T
Sealed Air Corporation (US)
St. Onge Steward Johnston & Reens LLC
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