Fluid handling – Back flow prevention by vacuum breaking – Air vent in liquid flow line
Patent
1988-09-16
1991-03-12
Michalsky, Gerald A.
Fluid handling
Back flow prevention by vacuum breaking
Air vent in liquid flow line
137526, 137542, F16K 2400
Patent
active
049985540
ABSTRACT:
A food pasteurization system includes a vacuum breaker valve having a valve element in an axial passageway normally maintained in a closed, raised position by a coil spring on the top side of the valve. Multi-purpose drain and air openings are provided in the valve body and are positioned below the upper end of the valve passageway such that material moving upwardly through the valve is automatically drained out of the valve rather than back into the food conduit.
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Michalsky Gerald A.
Vacu-Purg, Inc.
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