Visual display and method of providing a visual display

Details Visual display and method of providing a visual display Visual display and method of providing a visual display

G - Physics

09

F

G09F 19/08 (2006.01) G09F 15/00 (2006.01) G09F 19/00 (2006.01)

Patent

CA 2544412

Outer (12) and inner (14) inflatable members and a motor assembly including a fan are disposed on a base member (18). Air provided under pressure by the motor assembly including the fan passes through vents in the base member (18) to inflate the inflatable members (12, 14). Flakes (16) are disposed in the space between the inflatable members (12, 14). One vent, larger than the others, provides for the flakes (16) to be lifted upwardly from the base member (18) by the pressurized air. At least another vent in the base member (18) provides for a movement of the flakes (16) by the pressurized air in an annular direction in the space between the inflatable members (12, 14). A permeable cap (60) disposed on the outer inflatable member (12) limits the pressure in the outer (12) and inner (14) inflatable members to a particular value.

Des éléments gonflables intérieurs et extérieurs et un ensemble moteur comprenant un ventilateur sont disposés sur un élément de base. L'air alimenté sous pression par l'ensemble moteur comprenant le ventilateur traverse des évents situés dans l'élément de base pour gonfler les éléments gonflables. Des flocons sont disposés dans l'espace entre les éléments gonflables. Un évent, plus grand que les autres, permet aux flocons d'être soulevés à partir de l'élément de base par l'air sous pression. Au moins un autre évent de l'élément de base permet le déplacement des flocons par l'air sous pression dans une direction annulaire dans l'espace entre les éléments gonflables. Un capuchon perméable disposé sur l'élément gonflable extérieur limite la pression dans les éléments gonflables intérieurs et extérieurs à une valeur particulière.

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