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:
Oct. 05, 1993
Filed:
Jun. 11, 1992
Applicant:
Inventors:
Thomas J Casper, Waukesha, WI (US);
Peter G Dobbeck, Waukesha, WI (US);
Franklin J Koehler, Menomonee Falls, WI (US);
Susan M Rasper, Wales, WI (US);
John Thomas, Brookfield, WI (US);
Assignee:
Envirex Inc., Waukesha, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B07D / ;
U.S. Cl.
CPC ...
210256 ; 210522 ; 210525 ; 210526 ; 198494 ;
Abstract
Disclosed herein is a wastewater treatment facility including a stacked tank clarifier having a lower tank, and an upper tank above the lower tank, the upper tank having a bottom defining a ceiling of the lower tank, and the lower tank further having a floor. The wastewater treatment facility includes a mechanism for scraping the ceiling of the lower tank. The mechanism includes a driven endless chain loop in the lower tank, and a buoyant member carried by the chain loop.