Dispensing – Supply containers with traps – With trap chamber cutoffs
Patent
1994-03-01
1996-08-06
Kashnikow, Andres
Dispensing
Supply containers with traps
With trap chamber cutoffs
222438, 222445, 222450, B65D 4718
Patent
active
055425836
ABSTRACT:
A system and method for storing coffee beans in a vacuum environment and dispensing them into an external environment at atmospheric pressure is provided. An upper valve selectively passes coffee beans from a hopper to a metering chamber when open and forms an airtight seal between the metering chamber and the hopper when closed. A lower valve selectively dispenses the coffee beans from the metering chamber when open and forms an airtight seal between the metering chamber and the external environment when closed. An actuator mechanism synchronously operates the upper and lower valves to establish and maintain a vacuum environment in the hopper while dispensing an accurate quantity of coffee beans on demand.
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patent: 5275215 (1994-01-01), Derby
Boyer Samuel R.
Sitz Michael
Svaldi Paul
Brother's Gourmet Coffee, Inc.
Douglas Lisa
Kashnikow Andres
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