The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 12, 2001
Filed:
May. 26, 1999
Applicant:
Inventor:
Robert C. Schenck, Kettering, OH (US);
Assignee:
Cercona of America Inc., Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 3/08 ; B01D 3/500 ; B01D 3/335 ; E04H 4/12 ;
U.S. Cl.
CPC ...
C02F 3/08 ; B01D 3/500 ; B01D 3/335 ; E04H 4/12 ;
Abstract
A biological filter for filtering a stream of falling liquid, the filter comprising a body movable between a first and a second position, and a first filter portion coupled to the body such that the first filter portion is positioned under the stream when the body is in the first position. The filter further comprises a second filter portion coupled to the body such that the second filter portion is positioned under the stream when the body is in the second position, wherein the body reciprocates between the first and the second positions when located below the stream of liquid.