Filter assemblies, filter cartridges and methods for removing filter cartridges from filter assemblies
AssigneePall Corporation
InventorsJay Brandt, David Childs
Life of this patent
Estimating the term…
Abstract
A filter assembly (100) may comprise a filter cartridge (102) and a filter housing (101) which may include a cylindrical support (121) and a removable portion (110).
Claims35
A filter assembly comprising:
- a filter housing including at least a fluid inlet and a filtrate outlet and defining a fluid flow path between the fluid inlet and the filtrate outlet, wherein the filter housing further includes a removable portion and a cylindrical support having one or more openings;
- a cylindrical, hollow filter cartridge removably positioned in the fluid flow path closely adjacent to the cylindrical support and facing the one or more openings;
- and
- a linkage engagable between the filter cartridge and the removable portion of the filter housing and arranged to rotate and/or axially move the filter cartridge with respect to the cylindrical support in response to removal of the removable portion of the filter housing.
-10. (canceled)
A filter cartridge for a filter housing including a cylindrical support having one or more openings and a removable portion having one or more link elements, the filter cartridge comprising a cylindrical, hollow filter pack configured to fit closely adjacent to the cylindrical support facing the openings in the support, the filter pack having first and second ends, and first and second end caps mounted to the first and second ends of the filter pack, at least one of the first and second end caps including one or more link elements configured to engage the one or more link elements on the removable portion of the filter housing to remove the filter cartridge from the cylindrical support.
-23. (canceled)
A filter cartridge comprising:
- a cylindrical, hollow, substantially polymeric filter pack having first and second ends;
- and
- first and second end caps mounted to the first and second ends of the filter pack, at least one of the end caps including one or more link elements configured to transmit a twisting force and/or an axial force to the end cap;
- wherein the filter cartridge is free of at least one of a perforated core and a perforated cage.
-27. (canceled)
(canceled)
A method for removing a filter cartridge from a filter housing comprising removing a removable portion of the filter housing which is linked to a cylindrical filter cartridge, including rotating and/or axially moving the filter cartridge closely adjacent to a stationary cylindrical support having one or more openings facing the filter cartridge, and removing the filter cartridge from the stationary support and the filter housing.
-37. (canceled)
(canceled)
Dependencies are inferred from the claim text.