Septic tank effluent filters
AssigneeOrenco Systems, Inc.
InventorsEric S. Ball, Terry R Bounds
Life of this patent
Estimating the term…
Abstract
Filter vaults are shown and disclosed. In some embodiments, the filter vault includes an at least partially impervious and at least partially submersible filter housing. The housing includes an inlet opening that permits unfiltered wastewater having suspended solids to enter the housing. The filter vault further includes a filter assembly. The filter assembly includes one or more filter elements positioned within the housing. Each of the filter elements includes an upper end and a lower end. Each of the filter elements includes a filtering surface that is exposed to the unfiltered wastewater. The inlet opening allows accumulated solids from said filtering surface to exit said housing.
Claims11
A filter vault, comprising:
- a filter housing including:
- a lower tube sheet sealingly spanning a lower interior of the filter housing functionally preventing passage of unfiltered wastewater, and having a plurality of apertures extending therethrough;
- an upper tube sheet substantially spanning an upper interior of the filter housing having a plurality of apertures extending therethrough;
- an inlet opening below the lower tube sheet, positioned to introduce wastewater to be filtered into a lower chamber beneath the lower tube sheet;
- a plurality of elongate filter elements each having a porous wall defining a hollow interior and being open at both ends, disposed within the filter housing, and extending between the lower tube sheet and the upper tube sheet, the respective apertures of the lower tube sheet, the hollow interior of each filter element and the apertures of the upper tube sheet being substantially aligned;
- an outlet passageway extending through a wall of the filter housing and positioned between the lower tube sheet and the upper tube sheet permitting egress of filtered wastewater;
- and
- a pump closet defining an interior volume in fluid communication with the interior of the filter housing via outlet passageway for receiving filtered wastewater;
- wherein, wastewater to be filtered enters the filter housing through the inlet, flows through chamber, through apertures, into the hollow interior of the elongate filter elements, and at least a portion of the wastewater flows through the porous wall producing filtered wastewater.
Dependencies are inferred from the claim text.