Title: Apparatus for protecting aquatic life passing through a water filter

Abstract: Apparatus for protecting aquatic life carried by water passing through a vertical traveling band screen unit having inwardly opening screening baskets. Each basket carries a longitudinally extending, inwardly projecting baffle adjacent its trailing side with the portion thereof adjacent the basket being imperforate. The area along the length of each basket at the inner side of the baffle is imperforate and defines with the baffle a pocket for receiving water and aquatic life carried thereby upon upward movement through the water and is adapted to discharge the water and aquatic life carried thereby upon movement of the pocket to a predetermined elevation. A low pressure stream of water transfers the aquatic life from the pocket to a discharge trough located inwardly of the screening unit.

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Inventors: McCawley, Robert (Birmingham, AL, US)
Siddle, Kenneth R. (Birmingham, AL, US)

Application Number: 942959
Filing Date: 1978-09-18
Publication_date: 1980-04-22
Assignee: Passavant Corporation (Birmingham, AL)
Primary Class(es): 210/160 210/400, 405/82
Other Classes:
US Patent Ref:

1208655	Dec, 1916	Reynolds	210/160.
1579105	Mar, 1926	Green	405/82.
1874736	Aug, 1932	Bleyer	210/160.
1903627	Apr, 1933	Koch	405/82.
2804209	Aug, 1957	Carlten et al.	210/60.
3093578	Jun, 1963	Hitmeiser	210/160.
3458046	Jul, 1969	Passaquant	210/160.
4040952	Aug, 1977	Japp	210/400.

Other Refs:
Primary Examiner: Granger, Theodore A.
Assistant Examiner:
Attorney: Thompson, Jr.; Woodford R.