A filter cartridge (20) and method for making a filter cartridge (20) for removing particulates from a particulate laden fluid stream moving one direction through the filter cartridge. The filter cartridge (20) is periodically subject to cleaning fluid moving in an opposite direction to the fluid st
A filter cartridge (20) and method for making a filter cartridge (20) for removing particulates from a particulate laden fluid stream moving one direction through the filter cartridge. The filter cartridge (20) is periodically subject to cleaning fluid moving in an opposite direction to the fluid stream. The filter cartridge (20) comprises filtration media (24) formed into a tubular configuration and having a plurality of circumferentially spaced apart pleats (26). A retention device (82) to limit radial movement of the filtration media (24) when subjected to the periodical cleaning fluid and to maintain the pleats (26) in the filtration media circumferentially spaced apart when exposed up to 130 degrees Celsius. Preferably, the extrudate (144) is thermoplastic, polyester, elastomeric material and at least one additive may be present. Multiple layers of the extrudate (144) may be fused together.
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1. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configur
1. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said thermoplastic, polyester, elastomeric material is in a range from about 80 volume % to about 95 volume % of said retention device.2. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention device includes a hydrolytic stabilizer with said thermoplastic, polyester, elastomeric material.3. The filter cartridge of claim 2, wherein said hydrolytic stabilizer is in a range from about 2. volume % to about 12. volume % of said retention device.4. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention device includes a heat stabilizer with said thermoplastic, polyester, elastomeric material.5. The filter cartridge of claim 4, wherein said heat stabilizer is in a range from about 2. volume % to about 6. volume % of said retention device.6. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention device has a measured hardness in a range from about 40 Shore D to about 82 Shore D, a measured flexural modulus at ±40° Celsius in a range from about 155 MPa. to about 3,030 MPa., a measured flexural modulus at 23° Celsius in a range from about 62 MPa. to about 1,210 MPa., and a measured flexural modulus at 100° Celsius in a range from about 27 MPa. to about 255 MPa.7. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention device, has a measured hardness in a range from about 50 Shore D to about 72 Shore D, a measured flexural modulus at ±40° Celsius in a range from about 500 MPa. to about 2,410 MPa., a measured flexural modulus at 23° Celsius in a range from about 150 MPa. to about 570 MPa., and a measured flexural modulus at 100° Celsius in a range from about 75 MPa. to about 207 MPa.8. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention device has a tensile strength at breaking in a range from about 28 MPa. to about 48.3 MPa., an elongation at breaking in a range from about 350% to about 550%, a tensile strength at 5% strain in a range from about 2.4 MPa. to about 27.6 MPa. and a tensile strength at 10% strain in a range from about 3.6 MPa. to about 30.3 MPa.9. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention device has a tensile strength at breaking in a range from about 35 MPa. to about 45.8 MPa., has an elongation at breaking in a range from about 360% to about 525%, a tensile strength at 5% strain in a range from about 5. MPa. to about 14. MPa. and has a tensile strength at 10% strain in a range from about 7.5 MPa. to about 20.10. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention device has a resistance to flex cut growth in a range from about 3×104 cycles to 5× (times) cut growth to greater than 1×106 cycles to 5× (times) cut growth, an initial tear resistance in a range from about 100 kN. fin. to about 260 kN./m. and taber abrasion with a CS-17 wheel in a range from about 3 mg./1,000 revolutions to about 15 mg./1,000 revolutions and has taber abrasion with an H-18 wheel in a range from about 20 mg./1,000 revolutions to about 100 mg./1,000 revolutions.11. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention devices has resistance to flex cut growth in a range from about 4×10 cycles to 5×(times) cut growth to greater than 1×106 cycles to 5×(times) cut growth, an initial tear resistance in a range from about 130 kN./m. to about 200 kN./m. and has taber abrasion with a CS-17 wheel in a range from about 6 mg./1,000 revolutions to about 13 mg./1,000 revolutions and has taber abrasion with an H-18 wheel in a range from about 50 mg./1,000 revolutions to about 75 mg./1,000 revolutions.12. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention device has a melt flow rate in a range from about 4. g./10 minutes to about 15. g./10 minutes, a melting point in a range from about 150° Celsius to about 225° Celsius and a vicat softening point from about 108° Celsius to about 220° Celsius, a deflection temperature under flexural load values of 0.5 MPa. in a range from about 50° Celsius to about 150° Celsius and a deflection temperature under flexural load values of 1.8 MPa. in a range from about 40° Celsius to about 60° Celsius.13. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention device has a melt flow rate in a range from about 7. g./10 minutes to about 11. g./10 minutes, a melting point in a range from about 195° Celsius to about 218° Celsius and a vicat softening point from about 160° Celsius to about 205° Celsius, a deflection temperature under flexural load values of 0.5 MPa. in a range from about 70° Celsius to about 130° Celsius and a deflection temperature under flexural load values of 1.8 MPa. in a range from about 45° Celsius to about 52° Celsius.14. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention device has a specific gravity a range from about 1.1 to about 1.3 and absorbs water at a 1 kilogram load in a range from about 0.25% to about 0.75%.15. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media: and a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention device, has a specific gravity a range from about 1.15 to about 1.25 and absorbs water at a 1 kilogram load in a range from about 0.3% to about 0.6%.16. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving in an opposite direction to said fluid stream, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes thermoplastic, polyester, elastomeric material, to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention device, which includes from about 80 volume % to about 95 volume % of said thermoplastic, polyester, elastomeric material and includes at least one additive, wherein said retention device has a measured hardness in a range from about 40 Shore D to about 82 Shore D, a measured flexural modulus at ±40° Celsius in a range from about 155 MPa. to about 3,030 MPa., a measured flexural modulus at 23° Celsius in a range from about 62 MPa. to about 1,210 MPa., a measured flexural modulus at 100° Celsius in a range from about 27 MPa. to about 255 MPa., a tensile strength at breaking in a range from about 28 MPa. to about 48.3 MPa., an elongation at breaking in a range from about 350% to about 550%, a tensile strength at 5% strain in a range from about 2.4 MPa. to about 27.6 MPa., a tensile strength at 10% strain in a range from about 3.6 MPa. to about 30.3 MPa., a resistance to flex cut growth in a range from about 3×104 cycles to 5×(times) cut growth to greater than 1×106 cycles to 5×(times) cut growth, an initial tear resistance in a range from about 100 kN./m. to about 260 kN./m, has a melt flow rate in a range from about 4. g./10 minutes to about 15. g./10 minutes and a melting point in a range from about 150° Celsius to about 225° Celsius and a vicat softening point from about 108° Celsius to about 220° C., a deflection temperature under flexural load values of 0.5 MPa. in a range from about 50° Celsius to about 150° Celsius and has a deflection temperature under flexural load values of 1.8 MPa. in a range from about 40° Celsius to about 60° Celsius, a specific gravity a range from about 1.1 to about 1.3, absorbs water at a 1 kilogram load in a range from about 0.25% to about 0.75%, and has taber abrasion with a CS-17 wheel in a range from about 3 mg./1,000 revolutions to about 15 mg./1,000 revolutions and has taber abrasion with a H-18 wheel in a range from about 20 mg./1,000 revolutions to about 100 mg./1,000 revolutions.17. A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving through said filter cartridge, said filter cartridge comprising: filtration media formed into a tubular configuration; a plurality of circumferentially spaced apart pleats in said filtration media; and a retention device, which includes a plurality of layers of thermoplastic, polyester, elastomeric material fused together to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart.18. A method of making a filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge and that is periodically subject to cleaning fluid moving in an opposite direction through said filter cartridge, said method comprising: providing filtration media formed into a substantially tubular configuration and having a plurality of circumferentially spaced apart pleats formed therein; and extruding a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain pleats in said filtration media circumferentially spaced apart, wherein extruding said retention device further includes applying pressure in a range from about 21 kilograms/square centimeter to about 84.4 kilograms per square centimeter and temperature in a range from about 215 degrees Celsius to about 288 degrees Celsius to said extruded thermoplastic, polyester, elastomeric material forming said retention device.19. The method of claim 18, wherein said extruding a retention device further includes applying at least one additive combined with said thermoplastic, polyester, elastomeric material.20. The method of claim 19, wherein said thermoplastic, polyester, elastomeric material is in a range from about 80 volume % to about 95 volume % of said retention device and said at least one additive includes a hydrolytic stabilizer that is in a range from about 2. volume % to about 12. volume % of said retention device and a heat stabilizer that is in a range from about 2. volume % to about 6. volume % of said retention device.21. A method of making a filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge and that is periodically subject to cleaning fluid moving in an opposite direction through said filter cartridge, said method comprising the steps of: providing filtration media formed into a substantially tubular configuration and having a plurality of circumferentially spaced apart pleats formed therein; and applying a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in the opposite direction when subjected to the periodical cleaning fluid and to maintain pleats in the filtration media circumferentially spaced apart, wherein said retention device includes from about 80 volume % to about 95 volume % of said thermoplastic, polyester, elastomeric material and includes at least one additive, wherein said retention device has a measured hardness in a range from about 40 Shore D to about 82 Shore D, a measured flexural modulus at ?40° Celsius in a range from about 155 MPa. to about 3,030 MPa., a measured flexural modulus at 23° Celsius in a range from about 62 MPa. to about 1,210 MPa., a measured flexural modulus at 100° Celsius in a range from about 27 MPa. to about 255 MPa., a tensile strength at breaking in a range from about 28 MPa. to about 48.3 MPa., an elongation at breaking in a range from about 350% to about 550%, a tensile strength at 5% strain in a range from about 2.4 MPa. to about 27.6 MPa., a tensile strength at 10% strain in a range from about 3.6 MPa. to about 30.3 MPa., a resistance to flex cut growth in a range from about 3×104 cycles to 5×(times) cut growth to greater than 1×106 cycles to 5×(times) cut growth, an initial tear resistance in a range from about 100 kN./m. to about 260 kN./m, has a melt flow rate in a range from about 4. g./10 minutes to about 15. g./10 minutes and a melting point in a range from about 150° Celsius to about 225° Celsius and a vicat softening point from about 108° Celsius to about 220° C., a deflection temperature under flexural load values of 0.5 MPa. in a range from about 50° Celsius to about 150° Celsius and has a deflection temperature under flexural load values of 1.8 MPa. in a range from about 40° Celsius to about 60° Celsius, a specific gravity a range from about 1.1 to about 1.3, absorbs water at a 1 kilogram load in a range from about 0.25% to about 0.75%, and has taber abrasion with a CS-17 wheel in a range from about 3 mg./1,000 revolutions to about 15 mg./1,000 revolutions and has taber abrasion with a H-18 wheel in a range from about 20 mg./1,000 revolutions to about 100 mg./1,000 revolutions.22. A method of making a filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge and that is periodically subject to cleaning fluid moving in an opposite direction through said filter cartridge, said method comprising the steps of: providing filtration media formed into a substantially tubular configuration and having a plurality of circumferentially spaced apart pleats formed therein; and applying a retention device by extruding at least one first thermoplastic, polyester, elastomeric material layer, applying at least one second thermoplastic, polyester, elastomeric material layer to said at least one at least one first thermoplastic, polyester, elastomeric material layer to create a retention device to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain pleats in said filtration media circumferentially spaced apart.
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이 특허에 인용된 특허 (9)
Spencer Terrel F., Apparatus for making a filter module.
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