Advanced dual filtering apparatus
Patent 4591434 Issued on May 27, 1986. Estimated Expiration Date: 
October 22, 2004. 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 22, 2004. 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 ReferencesInventorApplicationNo. 06/663417 filed on 10/22/1984US Classes:210/117, Check valve controlled210/130, Fluid pressure responsive by-pass210/136, Check valve210/238, Hand manipulable210/241, WITH MOVABLE SUPPORT210/309, Attached to filter element210/316, One adjacent inlet or outlet conduit210/440, Inlet and outlet at same end210/443, Inlet and outlet at same end210/500.1, Material99/408With crumb or sediment segregating or handlingExaminersPrimary: Therkorn, Ernest G.Attorney, Agent or FirmInternational ClassesA47J 37/12 (20060101)B01D 29/13 (20060101) B01D 29/05 (20060101) B01D 29/01 (20060101) B01D 29/15 (20060101) AbstractA dual filtering apparatus for filtering deep fat frying vat oil includes a remote filtering screen attached to a tub by a flexible conduit for conveying oil and includes a fine filtering assembly that is at least partially provided within the upper chamber of the tub to further treat the oil from the remote filtering screen.Field of SearchCheck valve controlledNon-closing, e.g., sand valve Float type Fluid pressure responsive by-pass Check valve Closed circulating systems Lubrication WITH REPAIR OR ASSEMBLING MEANS Hand manipulable WITH MOVABLE SUPPORT Attached to filter element One adjacent inlet or outlet conduit Inlet and outlet at same end Filter suspended from head Separating And recirculating liquid Plural separating Inlet and outlet at same end | |
