Method and apparatus for monitoring an underdrain of a...

Details Method and apparatus for monitoring an underdrain of a... Method and apparatus for monitoring an underdrain of a...

2011-04-12

2011-04-12

Griffin, Walter D (Department: 1774)

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

C210S741000

Reexamination Certificate

active

07921697

ABSTRACT:
A method and apparatus for monitoring an underdrain in a filter system for filtering water or wastewater. At least one diagnostic condition relating to the performance of the underdrain is monitored to determine if the underdrain is operating in an acceptable manner.

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U.S. Appl. No. 11/340,642, filed Jan. 27, 2006 and pending in GAU 1797.

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