Extension and locking assembly for dripless filter element...

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 29/21 (2006.01) B01D 29/96 (2006.01) B01D 35/147 (2006.01) B01D 35/31 (2006.01) B65D 81/00 (2006.01)

Patent

CA 2413992

A filter assembly (30) includes housing body (32) and a cover (34) enclosing a replaceable filter element (36). A support core (36) in the housing body (32) includes an extension and locking assembly (70). The element (36) includes a ring of filtration media (120) with a pair of end caps (114, 122). One end cap (122) includes a central opening (124) such that the element (36) can be received over the support core (56). The extension and locking assembly (70) operates to prevent the cover (34) from being attached to the housing body (32) without a proper filter element installed. The extension and locking assembly (70) includes a bypass member (76) and a locking member (74), which are slideably located relative to each other and spring biased outwardly from the support core (56). The locking member (74) urges the bypass member (76) against a step (68) in the support core (56) to maintain the extension and locking assembly (70) in an outward position. The other end cap (114) of the filter element includes internal protrusions (116) which engage the locking member (74) when the filter element (36) is installed in the housing body (32) to disengage the bypass member (76) from the support core (56), and allow the bypass member (76) and locking member (74) to move inwardly into the housing body (32). The filter element (36) can be located in a fluid-tight, incineratable storage container (164). The storage container (164) includes a cup-shaped body (166) and a lid (168), which are easily connectable to each other. The body (166) can be used to remove a spent element from the housing body (32), and includes a resilient retaining device (174) designed to engage and retain an appropriate part of the filter element (36).

Un assemblage de filtre (30) comprend un boîtier (32) et un couvercle (34) renfermant un élément filtre remplaçable (36). Un noyau de support (36) dans le boîtier (32) comprend un ensemble de verrouillage et de prolongement (70). L'élément (36) comprend un anneau de milieu de filtrage (120) avec une paire de capuchons d'extrémité (114, 122). Un capuchon d'extrémité (122) comprend une ouverture centrale (124), de manière à ce que l'élément (36) puisse être placé par-dessus le noyau de support (56). L'ensemble de verrouillage et de prolongement (70) fonctionne de manière à empêcher le couvercle (34) de se fixer au boîtier (32) sans qu'un élément filtrant approprié soit installé. L'ensemble de verrouillage et de prolongement (70) comprend un organe de dérivation (76) et un organe de verrouillage (74), qui sont disposés coulissants l'un par rapport à l'autre et précontraints par un ressort en dehors du noyau de support (56). L'organe de verrouillage (74) pousse l'organe de dérivation (76) contre un palier (68) dans le noyau de support (56) de manière à maintenir l'ensemble de verrouillage et de prolongement (70) à l'extérieur. L'autre capuchon d'extrémité (114) de l'élément filtrant comprend des protubérances intérieures (116) qui mettent en prise l'organe de verrouillage (74) lorsque l'élément filtre (36) est installé dans le boîtier (32) de manière à libérer l'organe de dérivation (76) du noyau de support (56) et permettre à l'organe de dérivation (76) et l'organe de verrouillage (74) de rentrer dans le boîtier (32). L'élément filtrant (36) peut être placé dans un récipient de stockage étanche aux liquides et pouvant être brûlé (164). Le récipient de stockage (164) comprend un corps en forme de coupe (166) et un couvercle (168), facilement raccordables l'un à l'autre. Le corps (166) peut s'utiliser de manière à retirer un élément utilisé du boîtier (32) et comprend un dispositif de retenue souple (174) conçu pour mettre en prise et retenir une partie appropriée de l'élément filtrant (36).

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