Filter
Patent 5076942 Issued on December 31, 1991. Estimated Expiration Date: 
October 29, 2010. 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.
October 29, 2010. 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.InventorsAssigneeApplicationNo. 605245 filed on 10/29/1990US Classes:210/791, Rehabilitating or regenerating filter medium210/419, Attached to or within portable prefilt receiver210/420, Selective directive flow relative to filter210/445, Clamped in casing joint210/448, Single open-end-type filter element210/452Single open-end-type filter elementExaminersPrimary: Sever, FrankAttorney, Agent or FirmInternational ClassesB01D 041/04449-456 472 407 409 Foreign Application Priority Data1989-07-28 ILAbstractThe present invention relates to a method for filtering liquids. More particularly it is concerned with providing a clog-resistant filter of the kind in which a open end and with walls of metal, plastic or other suitable material bearing numerous perforations, is placed within a housing in such a manner that the liquid entering the housing must flow from the inside of the filter element out through the perforations in the latter, before it can leave the housing, with the result that solid material strained from the liquid flowing through the filter is retained within the filter element.Field of SearchRehabilitating or regenerating filter mediumBy diverse fluid Reverse flow FILTER Movable prefilt distributor Vacuumized filtrate receiver With pump, gas pressure, or suction source For fuel system For lubricating or oil treating system Alternating oppositely opening liquid distributors With flow controller for material being treated Attached to or within portable prefilt receiver Selective directive flow relative to filter Attached unitary plural passage header Combining or dividing flow passages with filter in combined passage Within flow line or flow line connected close casing Vented Clamped in casing joint Axially aligned inlet and outlet | |
