Gas and liquid contact apparatus – Contact devices – Liquid tank
Patent
1994-04-05
1996-07-09
Miles, Tim R.
Gas and liquid contact apparatus
Contact devices
Liquid tank
261124, 261DIG47, 285150, 285192, 210274, B01F 304
Patent
active
055342027
ABSTRACT:
Air grid systems for distributing a gas within treatment systems such as underdrain filters and contact clarifiers is disclosed. The air grid is supported from above so that it can be lowered into position and thus modified or repaired. Additionally, this feature permits retrofitting an air grid into an existing system, such as an underdrain filter, in which the bed of media overlying the underdrain is not upset by the installation. Thus, methods of installing or retrofitting air grid systems are also disclosed. In another aspect of the present invention, the air grid is comprised of an air manifold connected to air laterals by a spreader conduit that is inserted through a smooth bore in the walls of the manifold, thereby providing a simple and easy to manufacture structure that avoids problems found in prior art components.
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Eden Douglas H.
Roberts R. Lee
Taylor Andrew S.
Miles Tim R.
Roberts Filter Manufacturing Company
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