Liquid purification or separation – Filter – Supported – shaped or superimposed formed mediums
Patent
1998-08-03
2000-09-05
Walker, W. L.
Liquid purification or separation
Filter
Supported, shaped or superimposed formed mediums
2104935, 210509, 493941, 55500, 55521, B01D 2706, B01D 2907, B01D 29085
Patent
active
061137847
ABSTRACT:
A filter includes a cylindrical pleated filter element having a longitudinal axis, an inner and outer periphery, first and second end surfaces, and a plurality of longitudinal pleats. First and second end elements are sealingly arranged with the first and second end surfaces, wherein at least one of the end elements is an open end element. The filter element is a pleated composite that includes a filter medium, an upstream drainage medium and a downstream drainage medium. Each pleat includes a crown, a root, and a pair of legs. The legs of each pleat are joined to one another at the crown of the pleat and are joined to the legs of adjacent pleats at the root of the pleat. Each pleat leg abuts an adjacent pleat leg along the inner periphery of the filter element and the pleats extend from the inner periphery in a curved, an arcuate, an angled, or a straight nonradial direction to the outer periphery. The height of each pleat, measured in a direction along the legs and extending from the inner periphery at the root of the filter element to the outer periphery at the crown of the filter element is greater than (D-d)/2 and less than (D.sup.2 -d.sup.2)/[4(d+2t)], where D and d are the outer diameter and the inner diameter of the filter element and t is the thickness of each leg.
REFERENCES:
patent: 362551 (1887-05-01), Stiely
patent: D374476 (1996-10-01), Page et al.
patent: 624014 (1899-05-01), Hagerty
patent: 671790 (1901-04-01), Chandler
patent: 930401 (1909-08-01), Monteagle
patent: 1001929 (1911-08-01), Collins
patent: 1669461 (1928-05-01), Gamble
patent: 2064511 (1936-12-01), Wells
patent: 2122111 (1938-06-01), Poelman et al.
patent: 2321985 (1943-06-01), Briggs
patent: 2322548 (1943-06-01), Sigmund
patent: 2372545 (1945-03-01), Breedlove
patent: 2395449 (1946-02-01), Briggs
patent: 2401222 (1946-05-01), Briggs
patent: 2420414 (1947-05-01), Briggs
patent: 2537992 (1951-01-01), Gross et al.
patent: 2539450 (1951-01-01), Magill
patent: 2586078 (1952-02-01), O'Malley
patent: 2627350 (1953-02-01), Wicks
patent: 2663660 (1953-12-01), Layte
patent: 2675127 (1954-04-01), Layte
patent: 2689652 (1954-09-01), Gretzinger
patent: 2743019 (1956-04-01), Kovacs
patent: 2768751 (1956-10-01), Booth
patent: 2801009 (1957-07-01), Bowers
patent: 2837214 (1958-06-01), Kasten
patent: 2923447 (1960-02-01), Ezbelent
patent: 3026610 (1962-03-01), Wakefield
patent: 3042571 (1962-07-01), Jackson
patent: 3054507 (1962-09-01), Humbert, Jr. et al.
patent: 3057481 (1962-10-01), Pall
patent: 3061107 (1962-10-01), Taylor
patent: 3063888 (1962-11-01), Howard et al.
patent: 3165472 (1965-01-01), Briggs
patent: 3174625 (1965-03-01), Briggs
patent: 3189179 (1965-06-01), McMichael
patent: 3241680 (1966-03-01), Humbert, Jr.
patent: 3261473 (1966-07-01), Riede
patent: 3268442 (1966-08-01), Pall et al.
patent: 3306794 (1967-02-01), Humbert, Jr.
patent: 3334752 (1967-08-01), Matravers
patent: 3386583 (1968-06-01), Merten
patent: 3397793 (1968-08-01), MacDonnel
patent: 3417870 (1968-12-01), Bray
patent: 3426910 (1969-02-01), Winzen
patent: 3442392 (1969-05-01), Skelley
patent: 3450632 (1969-06-01), Olson et al.
patent: 3520417 (1970-07-01), Durr et al.
patent: 3578175 (1971-05-01), Manjikian
patent: 3666097 (1972-05-01), Ryan
patent: 3692184 (1972-09-01), Miller, Jr. et al.
patent: 3695443 (1972-10-01), Schmidt, Jr.
patent: 3720323 (1973-03-01), Landree
patent: 3769128 (1973-10-01), Manjikian
patent: 3799354 (1974-03-01), Buckman et al.
patent: 3804259 (1974-04-01), Riggleman et al.
patent: 3809199 (1974-05-01), Bessiere
patent: 3813334 (1974-05-01), Bray
patent: 3827566 (1974-08-01), Ponce
patent: 3880755 (1975-04-01), Thomas et al.
patent: 3891551 (1975-06-01), Tiedemann
patent: 4007113 (1977-02-01), Ostreicher
patent: 4007114 (1977-02-01), Ostreicher
patent: 4033868 (1977-07-01), Meichsner et al.
patent: 4033881 (1977-07-01), Pall
patent: 4046697 (1977-09-01), Briggs et al.
patent: 4051033 (1977-09-01), Blace
patent: 4058456 (1977-11-01), Head
patent: 4065341 (1977-12-01), Cub
patent: 4089783 (1978-05-01), Holyoak
patent: 4092246 (1978-05-01), Kummer
patent: 4101423 (1978-07-01), Merrill et al.
patent: 4154688 (1979-05-01), Pall
patent: 4158699 (1979-06-01), Volfkovich et al.
patent: 4172797 (1979-10-01), Robichaud et al.
patent: 4181070 (1980-01-01), Robbins et al.
patent: 4201119 (1980-05-01), Wolf
patent: 4206050 (1980-06-01), Walch et al.
patent: 4214612 (1980-07-01), De Putter
patent: 4223597 (1980-09-01), Lebet
patent: 4252591 (1981-02-01), Rosenburg
patent: 4293414 (1981-10-01), Gianeli
patent: 4321288 (1982-03-01), Ostreicher
patent: 4402830 (1983-09-01), Pall
patent: 4405466 (1983-09-01), Giannelli et al.
patent: 4421646 (1983-12-01), Correge et al.
patent: 4422861 (1983-12-01), Dusza
patent: 4443346 (1984-04-01), Muller
patent: 4500426 (1985-02-01), Ishii et al.
patent: 4501663 (1985-02-01), Merrill
patent: 4519531 (1985-05-01), Clerici
patent: 4523995 (1985-06-01), Pall et al.
patent: 4526688 (1985-07-01), Schmidt, Jr. et al.
patent: 4543112 (1985-09-01), Ackley et al.
patent: 4564376 (1986-01-01), Billiet
patent: 4615804 (1986-10-01), Wright
patent: 4617128 (1986-10-01), Ostreicher
patent: 4650102 (1987-03-01), Arbetter
patent: 4655921 (1987-04-01), Fujimoto
patent: 4660779 (1987-04-01), Nemesi et al.
patent: 4673503 (1987-06-01), Fujimoto
patent: 4692196 (1987-09-01), Ellegood et al.
patent: 4693985 (1987-09-01), Degan et al.
patent: 4734208 (1988-03-01), Pall et al.
patent: 4752396 (1988-06-01), Schmitt
patent: 4765893 (1988-08-01), Kohlheb
patent: 4767426 (1988-08-01), Daly et al.
patent: 4789526 (1988-12-01), Matkovich
patent: 4797259 (1989-01-01), Matkovich et al.
patent: 4802982 (1989-02-01), Lien
patent: 4814033 (1989-03-01), Spearman et al.
patent: 4826597 (1989-05-01), Silverwater et al.
patent: 4828698 (1989-05-01), Jewell et al.
patent: 4836931 (1989-06-01), Spearman et al.
patent: 4839037 (1989-06-01), Bertelsen et al.
patent: 4842736 (1989-06-01), Bray et al.
patent: 4842739 (1989-06-01), Tang
patent: 4855058 (1989-08-01), Holland et al.
patent: 4865637 (1989-09-01), Gruber
patent: 4872990 (1989-10-01), Van Wijk
patent: 4877527 (1989-10-01), Brownell
patent: 4882056 (1989-11-01), Degen et al.
patent: 4902417 (1990-02-01), Lien
patent: 4904380 (1990-02-01), Bhanot et al.
patent: 4940500 (1990-07-01), Tadokoro et al.
patent: 4944887 (1990-07-01), Frederick
patent: 4963325 (1990-10-01), Lennon et al.
patent: 4976926 (1990-12-01), Matkovich
patent: 5006235 (1991-04-01), Cooper
patent: 5028329 (1991-07-01), Drioli
patent: 5028465 (1991-07-01), Kinsley, Jr.
patent: 5039413 (1991-08-01), Harwood et al.
patent: 5071555 (1991-12-01), Enbom
patent: 5084178 (1992-01-01), Miller et al.
patent: 5084245 (1992-01-01), Berke et al.
patent: 5092990 (1992-03-01), Muramatsu et al.
patent: 5096584 (1992-03-01), Reddy et al.
patent: 5096591 (1992-03-01), Benn
patent: 5104540 (1992-04-01), Day et al.
patent: 5114508 (1992-05-01), Miyagi et al.
patent: 5114582 (1992-05-01), Sandstrom et al.
patent: 5120296 (1992-06-01), Yamaguchi et al.
patent: 5126054 (1992-06-01), Matkovich
patent: 5126189 (1992-06-01), Tanny et al.
patent: 5130023 (1992-07-01), Feint
patent: 5147541 (1992-09-01), McDermot, Jr. et al.
patent: 5149449 (1992-09-01), Strid et al.
patent: 5166051 (1992-11-01), Killeen et al.
patent: 5174896 (1992-12-01), Harms, II
patent: 5204002 (1993-04-01), Belfort et al.
patent: 5250179 (1993-10-01), Spearman
patent: 5252207 (1993-10-01), Miller et al.
patent: 5256372 (1993-10-01), Brooks et al.
patent: 5266219 (1993-11-01), Pall et al.
patent: 5275743 (1994-01-01), Miller et al.
patent: 5290502 (1994-03-01), Jeffery et al.
patent: 5296134 (1994-03-01), Zaiter
patent: 5362522 (1994-11-01), Barri et al.
patent: 5376278 (1994-12-01), Salem
patent: 5387344 (1995-02-01), McCombs et al.
patent: 5393101 (1995-02-01), Matkovich
patent: 5403482 (1995-04-01), Steere et al.
patent: 5419833 (1995-05-01), Ely et al.
patent: 5419870 (1995-05-01), Parker
patent: 5421977 (1995-06-01), Getsy et al.
patent: 5448419 (1995-09-01), Bigelow et al.
patent: 5451321 (1995-09-01), Matkovich
patent: 5456836 (1995-10-01), Jeffery et al.
Geibel Stephen A.
Hopkins Scott D.
Stoyell Richard C.
Williamson Kenneth M.
Cecil Terry K.
Pall Corporation
Walker W. L.
LandOfFree
Filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2208640