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:
Sep. 21, 1982
Filed:
Jul. 09, 1981
Wilhelm Stog, Waltrop, DE;
WSW Stahl- und Wasserbau GmbH, Waltrop, DE;
Abstract
A water-aeration apparatus has a tubular frame defining a substantially closed chamber and capable of floating and carrying a load when the chamber is filled with air. Flood and bleed valves are provided at respective underwater water intakes and above-water air exhausts for introducing water into the chamber and for withdrawing air therefrom. A double-walled conduit is supported on the frame and has an outer substantially gas-impervious wall and, spaced inwardly therefrom, an inner gas-pervious wall. The conduit is inclined to the horizontal when the frame is floating and has an upper conduit end and a lower conduit end. A pump carried on the frame has an air intake above the water when the frame is floating and an air output at the lower end and directed toward the upper end.