Compositions – Preservative agents – Anti-corrosion
Patent
1989-05-30
1992-04-28
Lovering, Richard D.
Compositions
Preservative agents
Anti-corrosion
73 601, 162 45, 162 62, 210750, 422106, B01D 1904, G05D 900
Patent
active
051086557
ABSTRACT:
This invention relates to a system for monitoring and controlling foam in a liquid tank utilizing a foam level sensing device positioned at a downstream location from a defoaming agent delivery arrangement. The foam level sensing device comprises a float having a plurality of foam sensors positioned at various levels above the float and provides signals to a control device regarding the level of foam in the tank. The control device provides instructions to the defoaming agent delivery arrangement so to provide a proper amount of defoaming agent to the tank. The defoaming agent delivery arrangement may be operated continuously and includes a backup delivery device for times when the delivery means runs out of defoaming agent or at times when foam is generated at an exceptional rate.
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Johns, Jr. Joseph W.
Katzel Joseph G.
Electro-System, Incorporated
Lovering Richard D.
Ross Chem, Incorporated
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