Ore-ida Vended Products, Inc.

Harry Girlock

Glen R Green

Philip N Middleton

One end of a valve assembly has a first check valve arrangement and is positioned in a channel connecting a variable volume reservoir and a second chamber. The other end of the valve assembly has a second check valve and is attached to a movable wall of the variable volume reservoir. Each check valve includes an element which opens in response to pressure changes in the variable volume reservoir: the first check valve opening in response to pressure increases while the second check valve opens in response to pressure decreases. The valve assembly is bodily movable with the wall of the variable volume reservoir such that the first check valve reciprocates in the channel.

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Mountaintop, PA, United States of America

Harry Girlock