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US 2003/0080038 A1Published application
Filter cartridge with strap and method
AssigneeBHA Group Holdings, Inc.
InventorsRandall David Van Pelt, Charles Grant Carothers
Life of this patent
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AssigneeBHA Group Holdings, Inc.
InventorsRandall David Van Pelt, Charles Grant Carothers
Estimating the term…
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. A method of making a filter cartridge (20) for removing particulates from a fluid stream moving one direction through the filter cartridge and that is periodically subject to cleaning fluid moving in an opposite direction to the fluid stream. The method comprises the steps of providing filtration media (24) formed into a generally tubular configuration and having a plurality of circumferentially spaced apart pleats (26). A retention device (82) is applied to limit radial movement of the filtration media (24) in the opposite direction when subjected to the periodic cleaning fluid and to maintain the pleats (26) in the filtration media circumferentially spaced apart.
An improved filter cartridge for removing particulates from a particulate laden fluid stream moving in one direction through said filter cartridge, the filter cartridge periodically subject to cleaning fluid moving in an opposite direction to the fluid stream, the filter cartridge including a filtration media formed into a tubular configuration with a plurality of circumferentially spaced apart pleats, mounting structure at a first axial end portion of the filtration media, and an end cap at a second axial end portion of the filtration media, the filtration media retained in the generally tubular configuration by the mounting structure and the end cap;
The improved filter cartridge of claim I wherein said retention device is attached to the filtration media to resist movement in direction parallel to a longitudinal central axis of the filter cartridge.
A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, the filter cartridge periodically subject to cleaning fluid moving in an opposite direction to the fluid stream, said filter cartridge comprising:
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 of the fluid stream, said method comprising the steps of:
Dependencies are inferred from the claim text.