United States Patent     [19]

Chang

[11]        Patent Number:                              5,376,282

[45]       Date of Patent:                         Dec. 27, 1994

[54]      Method And Apparatus For
           Controlling Zebra Mussels In
           Water Conduits

[75]      Inventor: Tiao J. Chang, Athens, Ohio

[73]      Assignee: Ohio University, Athens, Ohio

[21]      Appl. No.: 80,047

[22]      Filed: Jun. 18, 1993

[51]      Int. Cl.5 .................. B08B 17/00; C02F 1/20
[52]        U.S. Cl. ...................... 210/750; 210/764;
                                          422/6; 422/33
[58]      Field of Search ................... 210/764, 750; 422/6
                                           422/33; 95/260, 266; 96/194

[56]                                References Cited

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FOREIGN PATENT DOCUMENTS
1193204
2405295
260008A1
0012914
643750
2173712A

9/1985
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 Canada .
Germany .
Germany .
Japan .
Switzerland .
United Kingdom .
Primary Examiner--Neil McCarthy
Attorney, Agent, or Firm--John L. Gray

[57]                                       ABSTRACT

The present invention has two basic aspects: (a) a me-
chanical method for controlling the macrofouling of
zebra mussels; and (b) a mechanical apparatus for reduc-
ing the dissolved oxygen of natural source water, such
as for industrial or municipal use, to a level below that
sufficient to support the survival respiration of zebra
mussels.

                      3 Claims, 3 Drawing Sheets