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US 5,476,585 AGranted
Removably mounted hollow filter element and core
AssigneePall Corporation
InventorSteven L. Mills
Life of this patent
Estimating the term…
Abstract
A filter assembly includes a disposable filter element and a reusable perforated supporting core, the filter element being removably mounted around the perforated core. The filter assembly may include first and second end caps and each end cap may include a first segment or adapter attached to one end of the filter element and a second segment or adapter attached to a corresponding end of the core. The first and second segments or adapters of each end may be detachably sealed to each other. The filter assembly may include a wrap having one or more strips wrapped at least once around the filter element.
Claims89
A filter assembly comprising:
- a perforated core having first and second ends;
- a hollow filter element removably mounted around the perforated core and having first and second ends;
- and
- a first end cap having a first segment attached to the first end of the filter element and a second segment attached to the first end of the core and a second end cap having a first segment attached to the second end of the filter element and a second segment attached to the second end of the core, wherein the first and second segments of each end cap are detachably sealed to each other.
1 more element
A filter assembly comprising:
- a filter cartridge including a hollow filter element having first and second ends and first and second impervious adapters capping the first and second ends of the filter element;
- and
- a core assembly including a perforated core disposed within the hollow filter element and having first and second ends and first and second adapters attached to the first and second ends of the perforated core, wherein the first and second adapters of the filter cartridge are sealed to the first and second adapters of the core assembly, respectively, and wherein the filter cartridge is removably mounted to the core assembly.
A filter assembly comprising:
- a perforated core having first and second ends;
- a hollow filter element removably mounted around the perforated core and having first and second ends;
- and
- a first end cap having a first segment attached to the first end of the filter element and a second segment attached to the first end of the perforated core and a second end cap having a first segment attached to the second end of the filter element and a second segment attached to the second end of the core, wherein the first and second segments of each end cap respectively include first and second shoulders which are arranged to axially engage each other and wherein the first and second segments of at least one of the end caps are detachably sealed to each other.
1 more element
A filter assembly comprising:
- a filter cartridge including a hollow filter element having first and second ends and first and second impervious adaptors capping the first and second ends of the filter element;
- and
- a core assembly including a perforated core disposed within the hollow filter element and having first and second ends and first and second adaptors attached to the first and second ends of the perforated core, wherein the first adaptor of the filter cartridge has a shoulder which is arranged to axially engage a shoulder on the first adaptor of the core assembly and the second adaptor of the filter cartridge has a shoulder which is arranged to axially engage a shoulder on the second adaptor of the core assembly, wherein the adaptors at at least one end of the filter assembly are detachably sealed to each other, and wherein the filter cartridge is removably mounted to the core assembly.
A filter assembly comprising:
- a perforated core having a first end;
- a hollow filter element removably mounted around the perforated core and having a first end;
- and
- an end cap having a first segment attached to the first end of the filter element and a second segment attached to the first end of the core, each segment including a first portion having a first diameter, a second portion having a second diameter, and a shoulder between the first and second portion, wherein the first and second portions of the second segment are positioned within the first and second portions, respectively, of the first segment and the shoulders of the first and second segments about each other.
1 more element
A filter assembly comprising:
- a filter cartridge including a hollow filter element having a first end and an impervious adapter capping the first end of the filter element, the adapter including a first portion having a first diameter, a second portion having a second diameter, and a shoulder between the first and second portions;
- and
- a core assembly including a perforated core disposed within the hollow filter element and having a first end and an adapter attached to the first end of the perforated core, the adapter including a first portion having a first diameter, a second portion having a second diameter, and a shoulder between the first and second portions, wherein the first and second portions of the core adapter are positioned within the first and second portions, respectively, of the filter element adapter and the shoulders of the adapters abut each other and wherein the filter cartridge is removably mounted to the core assembly.
Dependencies are inferred from the claim text.