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US 4,060,486 AGranted
Waste water aeration device
OwnerAugust Schreiberinventor
Life of this patent
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OwnerAugust Schreiberinventor
Estimating the term…
A device in the form of an air distributor container is provided for effecting intermittent aeration of waste water, with several of such containers being arranged beneath the water level and connected with an air intake. Each container comprises a tube-like support and an air distributor foil covering such support and having fine air exit openings therein which are opened during the aeration process by the air introduced through the intake, and which close once the air intake is discontinued. Each container comprises an oval barrel jacket, serving as the support and having upper and lower outwardly arched walls. A plurality of lateral air passage openings are located in the upper wall of the barrel jacket and extend along opposite longitudinal edges thereof. Cover plates air-tightly close opposite ends of the barrel jacket, and one of the plates contains an air intake opening. An elongated tie rod extends axially over the entire length of the container and through holes in the cover plates for securing them in place and for further strengthening the container. The foil is connected to the jacket at its opposite ends in an air-tight manner and is stretched over the upper wall including the air passage openings, with the exit openings of the foil lying inwardly of such openings. Accordingly, an interspace is defined between the foil and the upper wall during air intake as the foil is caused to raise from the barrel jacket to a level higher than the air passage openings.
A device for the intermittent aeration of waste water which comprises an elongated air supply container, said container consisting of connected upper and lower outwardly arched walls enclosing an air passage chamber therebetween, said upper wall consisting of an outwardly arched central portion and opposite, substantially horizontal portions adjacent the two longitudinal edges thereof in the elongated direction of said air supply container, said lower arched wall being connected to the opposite, substantially horizontal portions of said upper wall, means forming a plurality of air passage openings in said opposite, substantially horizontal portions of said upper wall, means closing the opposite ends of said elongated air supply container, means for intermittently supplying air to the air passage chamber in said elongated air supply container;
An air distributor device in the form of an air distributor container connected with an air intake for the intermittent aeration of waste water, said container comprising an elongated tube-like support, an air distributor foil having fine exit openings therein and covering said support in such a manner that said openings are opened during an aeration process by air introduced through said air intake and are closed when the air through said intake is discontinued;
Dependencies are inferred from the claim text.