Dispensing – Automatic control
Reexamination Certificate
2008-05-20
2008-05-20
Ngo, Lien M. (Department: 3754)
Dispensing
Automatic control
C222S063000, C222S190000, C239S343000
Reexamination Certificate
active
10483609
ABSTRACT:
A dispenser for a flowable product such as liquid soap is arranged to receive a can containing the liquid soap as well as two different propellants. Gaseous nitrogen under pressure acts as a primary propellant, while propane and/or butane in a liquid phase acts to foam the soap when it is released from the can. An electronically controlled valve is actuated when a sensor detects the presence of a user's hand adjacent an outlet, and a predetermined quantity of foamed soap is then dispensed.
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Jackson Simon Alexander
Lewthwaite John Edward
Lowitt Deanna
Buchanan & Ingersoll & Rooney PC
Lawson Scheepers Roger Basil
Ngo Lien M.
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