Filters

A - Human Necessities – 47 – L

Patent

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Details

A47L 9/14 (2006.01) B01D 46/02 (2006.01) B01D 46/18 (2006.01) B01D 46/42 (2006.01)

Patent

CA 2319377

A filter which may be incorporated in a vacuum cleaner, comprises a store for filter-web in the form of a roll (11), pulling means comprising a driven endless belt (40) and a cooperating plate (43) of a resiliently deformable material (or two rollers) arranged to draw web from inside the roll in the form of a spiral tube which passes between the belt and the plate (or the two rollers), particulate laden fluid being directed to the inside of the roll and outwardly through it so that particulate matter is trapped within the tube as web is drawn from the roll, the tube containing such matter being conveyed by the pulling means (40, 43) to a used filter-web store (26).

L'invention concerne un filtre pouvant être intégré à un aspirateur, ce filtre comprenant un logement pour bande filtrante sous la forme d'un cylindre (11), des organes de traction présentant une courroie sans fin entraînée (40), et une plaque de coopération (43) (ou deux cylindres), fabriquée dans un matériau élastique déformable, cette plaque étant conçue pour tirer la bande depuis l'intérieur dudit cylindre sous la forme d'un tube en spirale, lequel passe entre la courroie et la plaque (ou les deux cylindres). Un fluide chargé en particules est dirigé vers l'intérieur dudit cylindre puis à l'extérieur de ce dernier, de sorte que la substance particulaire est piégée à l'intérieur du tube au moment où la bande sort du cylindre, ledit tube contenant une matière transportée par lesdits organes de traction (40, 43) vers un logement pour bande filtrante usée (26).

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