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Class Information
Number: 210/497.2
Name: Liquid purification or separation > Filter > Supported, shaped or superimposed formed mediums > Cylindrical, conical, or trough shape > Filter blank
Description: Apparatus in an unassembled form capable of being formed in a cylindrical, conical, or trough shape.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7297271 |
Titanium powder sintered compact |
Nov. 20, 2007 |
| 7255722 |
Gas filter |
Aug. 14, 2007 |
| 6739460 |
Non-contaminating paint strainer |
May. 25, 2004 |
| 6722508 |
Removable cartridge assembly for filtering bi-directional axial flow and radial flow and method of making same |
Apr. 20, 2004 |
| 6662955 |
Beverage ingredient filter and assembly |
Dec. 16, 2003 |
| 6047834 |
Process for the manufacture of a sifting device with slit-shaped openings and an appropriately manufactured sifting device |
Apr. 11, 2000 |
| 5980744 |
Beaded center tube |
Nov. 9, 1999 |
| 5873999 |
Sieving and filtration screen |
Feb. 23, 1999 |
| 5804128 |
Cylindrical filter and process for producing the same |
Sep. 8, 1998 |
| 5770077 |
Laminated filter material |
Jun. 23, 1998 |
| 5744036 |
Pleated filter arrangement |
Apr. 28, 1998 |
| 5741421 |
Filter device |
Apr. 21, 1998 |
| 5736042 |
Conical filter having bonded end flaps |
Apr. 7, 1998 |
| 5733452 |
Filter and end cap assembly including a porous layer for sealing with a potting material and method for making the assembly |
Mar. 31, 1998 |
| 5688588 |
Water purification device |
Nov. 18, 1997 |
| 5679251 |
Wound oil filter |
Oct. 21, 1997 |
| 5674393 |
Oil filter |
Oct. 7, 1997 |
| 5670044 |
Cylindrical filter and process for producing the same |
Sep. 23, 1997 |
| 5639369 |
Filter element |
Jun. 17, 1997 |
| 5616242 |
Two stage bottle filter for the removal of sediment |
Apr. 1, 1997 |
| 5605625 |
Filter assembly |
Feb. 25, 1997 |
| 5599449 |
Tubular elastic frame with a continuous slot spanned by a filter material |
Feb. 4, 1997 |
| 5593587 |
Cell strainer |
Jan. 14, 1997 |
| 5589067 |
Expanded metal filter support structure |
Dec. 31, 1996 |
| 5549826 |
Filtration bag |
Aug. 27, 1996 |
| 5509666 |
Protected seal assembly and protective filter unit therefor |
Apr. 23, 1996 |
| 5482622 |
Filter for installation in an annular groove |
Jan. 9, 1996 |
| 5476585 |
Removably mounted hollow filter element and core |
Dec. 19, 1995 |
| 5468382 |
Depth filter media |
Nov. 21, 1995 |
| 5460721 |
Helical wound tube |
Oct. 24, 1995 |
| 5456475 |
Protected seal assembly and protective filter unit therefor |
Oct. 10, 1995 |
| 5456833 |
Ceramic foam filter having a protective sleeve |
Oct. 10, 1995 |
| 5429745 |
Cylindrical filter formed of stacked fibers having a high and low melting point component |
Jul. 4, 1995 |
| 5417860 |
Bottle filter and pouring device |
May. 23, 1995 |
| 5401409 |
Tubular knitted filter cover and process for preventing runs |
Mar. 28, 1995 |
| 5393425 |
Irrigation system lateral pickup pipe strainer |
Feb. 28, 1995 |
| 5384046 |
Screen element |
Jan. 24, 1995 |
| 5384044 |
Fluid separation devices and methods of making same |
Jan. 24, 1995 |
| 5368728 |
Paint strainer assembly |
Nov. 29, 1994 |
| 5350515 |
Internally potted end cap for a pleated filter medium |
Sep. 27, 1994 |
| 5326472 |
Filter for rapid extraction of the aromatic substances of a product by a liquid under pressure, and an apparatus equipped with a filter of this type |
Jul. 5, 1994 |
| 5316678 |
Filter cell seal assembly |
May. 31, 1994 |
| 5290446 |
Helical wrapped filter element |
Mar. 1, 1994 |
| 5279731 |
Depth filter media |
Jan. 18, 1994 |
| 5275729 |
Pleated liquid filter having zones of different filtration |
Jan. 4, 1994 |
| 5273650 |
Ceramic filter |
Dec. 28, 1993 |
| 5269925 |
Filter comprising multiple layers of non-woven filter fabric of decreasing porosity |
Dec. 14, 1993 |
| 5256312 |
Apparatus and method for filtering out particulates and impurities using an inflatable seal |
Oct. 26, 1993 |
| 5221475 |
Filter support |
Jun. 22, 1993 |
| 5211846 |
Replacement filter cartridge assembly |
May. 18, 1993 |
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