Method of feeding wastewater effluent to filter bed through parallel conduits
Patent 5360556 Issued on November 1, 1994. Estimated Expiration Date: 
August 7, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 7, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 649411 848279 962606 1784893 2092716 2439764 2605901 2795542 Septic tank system On-site wastewater treatment system InventorsAssigneeApplicationNo. 926463 filed on 08/07/1992US Classes:210/804, And additional diverse separation137/1, PROCESSES138/104, With indicating means210/90, Fluid pressure responsive210/258, With pump, gas pressure or vacuum source405/40, At outlet or intake405/44, Uniform discharge405/48, Open seam or shielded outlet405/51Branched flowExaminersPrimary: Drodge, Joseph W.Attorney, Agent or FirmForeign Patent References
International ClassB01D 021/00AbstractAn on-site wastewater treatment system distributes septic tank effluent over a particulate media filter bed through a distribution manifold at a sufficient volumetric flow rate relative to the cross-sectional area of the distribution conduits to inhibit undesirable biological growth in the conduits and in the filter by creating a scouring effect in the conduits. This effect prevents clogging of the conduits and maximizes the even distribution of effluent in the filter. A mesh fabric intercepts the downward flow of the effluent in the filter to further aid in the even distribution of effluent in the filter. Orifice shields also aid in such distribution by preventing clogging of orifices embedded in the filter media. A high pressure switch in the distribution manifold and a high water alarm in the filter pump basin indicate when required maintenance is necessary, and the switch controlling the high water alarm temporarily disables the septic tank pump as well. A flush system is provided to easily remove any clogging solid material from the distribution manifold.Other References
Field of SearchFluid pressure responsiveWith pump, gas pressure or vacuum source Diverse With gravitational separator Particular liquid receiving means or foraminous bed retainer Heavier constituent trap, chamber, or recess Septic tank Prior to ion exchange or sorption Pressure sensing Including geographic feature (e.g., drainage ditch, septic, pond) And additional diverse separation In bed form Geographic (e.g., drainage ditch, septic, pond) DRAINAGE OR IRRIGATION Control means responsive to sensed condition Having regulation of flow through channel At outlet or intake Riser or standpipe outlet or intake End cap Porous or apertured pipe, flume, or tileway Uniform discharge Porous Open seam or shielded outlet Branched flow With indicating means With end structure PROCESSES | |
