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Beer dispensing instrumentalities and method

  • US 3,878,970 A
  • Filed: 02/11/1974
  • Issued: 04/22/1975
  • Est. Priority Date: 02/11/1974
  • Status: Expired due to Term
First Claim
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1. A control instrumentality to govern communication of a dispensing device with a container holding liquid under pressure, characterized by:

  • A. means defining a chamber through which liquid from the container must flow to reach a dispensing device, said chamber having inlet and outlet means in upstream and downstream portions thereof, respectively, to provide for such flow;

    B. first valve means adjacent to the chamber outlet means to govern flow of liquid out of the chamber;

    C. means to govern actuation of said valve means between open and closed positions, comprising detector means sensitive to the presence and amount of liquid in the chamber for effecting opening of said valve means in consequence of liquid in the chamber above a predetermined level, and to effect closure of said valve means in consequence of decrease in the amount of liquid in the chamber to a lower level that leaves it only partially filled with liquid;

    D. second valve means to control communication between the chamber and the inlet means;

    E. and means to effect closure of said second valve means in consequence of drop in pressure at the inlet means to a valve below that prevailing at the outlet means.

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