[특허]Displacement filter apparatus

Displacement filter apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-029/54 B01D-029/64 B01D-029/68 B01D-029/70
출원번호	US-0415558 (2012-03-08)
등록번호	US-8574436 (2013-11-05)
발명자 / 주소	Duby, Sean R.
출원인 / 주소	Duby, Sean R.
대리인 / 주소	Knobbe, Martens, Olson & Bear, LLP
인용정보	피인용 횟수 : 0 인용 특허 : 30

초록 ▼

A method and apparatus for filtering a slurry utilizing a displacement filtering principle. The filter apparatus desirably includes an inner filter and an outer filter. Both the inner and outer filters are preferably substantially annular in shape and positioned concentrically with respect to each other. A particulate collection volume is at least partially defined between the inner and outer filter. The method includes directing a flow of slurry into the particulate collection volume under sufficient pressure to force fluid within the particulate collection volume through one of the inner and outer filters and any particulate matter blocking a filtering surface of the inner and outer filters.

대표청구항 ▼

1. A filter apparatus, comprising: an annular inner filter defining an internal cavity;an outer filter surrounding said inner filter, said inner filter and said outer filter defining an annular particulate collection volume when said filter apparatus is in a closed position, said inner filter and said outer filter being movable axially with respect to one another to define an open position wherein particulate may be emptied from said filter apparatus;an outlet located downstream from said particulate collection volume;an inlet directing fluid into said particulate collection volume before said fluid passes through either of said inner filter and said outer filter; anda drive having a portion which exerts force on at least one of said inner filter and said outer filter to move said filter apparatus between said open position and said closed position. 2. The filter apparatus of claim 1, additionally comprising at least one liquid sprayer having at least one spray nozzle which is capable of spraying a liquid toward at least one of said inner filter and said outer filter. 3. The filter apparatus of claim 1, additionally comprising at least one liquid sprayer carried by one of said inner filter and said outer filter, said liquid spray apparatus comprising at least one spray nozzle for spraying a liquid toward the other of said inner filter and said outer filter. 4. The filter apparatus of claim 3, wherein said at least one liquid spray apparatus comprises a first spray apparatus and a second spray apparatus, said first spray apparatus being carried by said inner filter and arranged to spray a liquid toward said outer filter and said second spray apparatus being carried by said outer filter and arranged to spray a liquid toward said inner filter. 5. The filter apparatus of claim 3, wherein said other of said inner filter and said outer filter comprises a cover, substantially sealing said at least one spray nozzle when said filter apparatus is in a closed position. 6. The filter apparatus of claim 1, additionally comprising at least one annular scraper having a portion which is sized and shaped such that axial movement of said inner filter and said outer filter with respect to one another causes said scraper to at least substantially remove particulate from said particulate collection volume. 7. The filter apparatus of claim 1, additionally comprising at least one annular scraper carried by one of said inner filter and said outer filter, said scraper being sized and shaped such that axial movement of said inner filter and said outer filter with respect to one another causes said scraper to at least substantially remove particulate from said particulate collection volume. 8. The filter apparatus of claim 7, wherein said at least one annular scraper comprises a first scraper attached to said inner filter at a first end portion of said particulate collection volume and a second scraper attached to said outer filter at a second end portion of said particulate collection volume, said second scraper including a plurality of passages permitting particulate to pass therethrough during said axial movement of said inner filter and said outer filter with respect to each other. 9. A filter apparatus, comprising: an annular inner filter defining an internal cavity;an outer filter surrounding said inner filter, said inner filter and said outer filter defining an annular particulate collection volume when said filter apparatus is in a closed position, said inner filter and said outer filter being movable axially with respect to one another to define an open position wherein particulate may be emptied from said filter apparatus;an outlet located downstream from said particulate collection volume;an inlet directing fluid into said particulate collection volume before said fluid passes through either of said inner filter and said outer filter; andmeans for moving said filter apparatus between said open position and said closed position.

이 특허에 인용된 특허 (30)

Kupka Dieter (Rain DEX), Automatic filter press.
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Levin Alan R. (Somerville NJ) Booth Walter R. (East Hanover NJ), Bag filter and retainer therefor.
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Kowalski V. Walter (E. Lyme CT), Compact filter assembly.
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Ostlund Gunnar (Mjlby SEX), Concentric filter elements.
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Mohn Helmuth (Dutenhofen DT), Continuous filter with pressing means.
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Golston Stefan (Bellevue WA), Continuous process diffuser.
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Kinney Craig S. (Sewickley PA), Continuous strainer.
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Duby, Sean R., Displacement filter apparatus.
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Kessler Emerich (28 Lakeview Dr. West Orange NJ 07052), Dual filtering system for swimming pools.
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Higgins David M., Filter press with alternating diaphragm squeeze chamber plates and filtration chamber plates.
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Davis Scott J. (Kalamazoo MI), Filter with reciprocating cleaner unit.
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Rosaen Borje O. (4031 Thornoaks Ann Arbor MI 48104), Flexible filter device with means to position filter bag.
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Hoffmann Jrgen (Hardegsen-Ellierode DEX) Stinzendrfer Joachim (Gttingen DEX), Integral filters for separating fluid components and housing for them.
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Ohbayashi Masaaki (Sakai JPX), Liquid filtering vessel.
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Degen Peter J. (Huntington NY) Alex Tony (Kendall Park NJ) Gildersleeve Michael R. (Nesconset NY), Method of treating a clogged porous medium.
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Ziller Josef (Waldstetten DEX), Plate filter for filtering liquids.
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Clark Norman O. (Par GB2), Pressure filters.
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Clark Norman O. (Par GB2), Pressure filters.
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Gwilliam Ralph D. (St. Austell GB2) Eggleston David (St. Austell GB2), Pressure filters.
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Wall George W. (Rest Easy ; St. Blazey Road Par ; Cornwall GBX) Jones Glyn T. (14 ; Cooperage Road Trewoon ; St. Austell ; Cornwall GBX), Pressure filters.
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Wolter Manfred (Hrth DEX) Dorn Friedrich-Wilhelm (Hrth DEX) Heymer Gero (Erftstadt DEX) Stephan Hans-Werner (Cologne DEX), Process for separating carbon black from an aqueous suspension.
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Purdey John Anthony (Par EN), Separation of liquids and solids.
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Keat ; Gordon Samuel, Separation of solids and liquids.
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Wall George W. (Par GB2) Jones Glyn T. (St. Austell GB2), Tube pressure filter.
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Wall George W. (Par GB2) Jones Glyn T. (St. Austell GB2), Tube pressure filter.
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Broad Bernard H. (St. Austell GB2), Tube pressure filters.
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Broad Bernard H. (St. Austell GB2), Tube pressure filters.
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Broad Bernard H. (St. Austell GB2), Tube pressure filters.
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Zievers James F. (LaGrange IL) Eggerstedt Paul (North Riverside IL), Tubular pressure filter.
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Yang Chi-Hua,TWX, Water filter with strainer scraping means.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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