Advanced dual-filtering apparatus
Patent 4517082 Issued on May 14, 1985. Estimated Expiration Date: 
September 30, 2002. 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.
September 30, 2002. 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. 06/432009 filed on 09/30/1982US Classes:210/117, Check valve controlled210/136, Check valve210/238, Hand manipulable210/440, Inlet and outlet at same end210/443Inlet and outlet at same endExaminersPrimary: 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 filtering system for deep fat fryers includes a filter tub for receiving contaminated oil from fat frying vats, a primary filtering means mounted in a covering relationship to bottom wall of said tub, and a fine filter cannister to effect removal of contaminated particles down to at least 1/10 of a micron in size from said oils.Field of SearchSeparatingAnd recirculating liquid Plural separating Closed circulating systems Lubrication WITH MOVABLE SUPPORT WITH REPAIR OR ASSEMBLING MEANS Hand manipulable Check valve Inlet and outlet at same end Filter suspended from head Check valve controlled Non-closing, e.g., sand valve Float type Inlet and outlet at same end | |
