Fluid handling – Systems – System with plural openings – one a gas vent or access opening
Patent
1997-05-09
1998-10-06
Ferensic, Denise L.
Fluid handling
Systems
System with plural openings, one a gas vent or access opening
137377, 454368, 454 35, 553854, 55498, 55487, F16K 2400
Patent
active
058162887
ABSTRACT:
A protective vent for a water storage tank having an inner flexible fine mesh screen and an outer heavier more rigid screen with a wider mesh. Both screens are mounted on a frame structure under an extending upper protective cover. Air from the water tank can communicate with ambient air after passing through the two screens. The outer screen acts to protect the tank and the inner screen from birds, grasshoppers and large insects while the flexible wrinkled inner screen protects against frost and smaller insects entering the tank. Fiberglass may be used for the fine inner screen and galvanized hardware cloth for the outer screen. The vent is constructed to be mounted over an existing vent stack from the storage tank. On those water storage tanks whose venting capacity is no longer adequate and an increase in air flow is desired, a new larger diameter vent stack can be installed in place of the existing smaller stack with this protective vent system.
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Ball John
Ferensic Denise L.
McGlynn Joseph H.
Zack Thomas
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