Apparatus for generating at least one jet of gaseous fluid

A blower apparatus (1) for generating at least one jet (2) of gaseous fluid oriented in one direction (D1) said jet also being movable in a direction (D2) substantially perpendicular to the orientation direction (D1),

• said blower apparatus having means for moving said at least one jet of fluid at least between two positions (P1, P2), the distance between which is approximately equal to a longitudinal dimension (L) of the blower apparatus;
• the blower apparatus further comprising:
• a hollow box (3), of a rectangular parallelepiped shape having rigid walls (3a), the box having at least one longitudinal face (4) including at least one window (5) which extends over approximately an entire longitudinal dimension of said face, said window comprising at least one cutout made through an entire thickness of a wall forming said longitudinal face, and
• the means for moving said at least one jet of fluid further comprising:
• at least one flexible belt (7), which sealingly closes said at least one window (5), said belt being vertically disposed in a substantially parallel orientation to said window, said belt having at least one perforation (8) of predetermined dimensions,
• means (9) for driving said at least one belt (7) along a plane parallel to a longitudinal extent of said window (5) thereby displacing said at least one perforation of said at least one belt along the longitudinal dimension of the window, and
• means (10) for injecting gaseous fluid into said box (3) through an opening (11) made in one of its walls, said injecting means injecting said gaseous fluid at a side of said belt opposite a side of said belt facing said window, thereby causing said gaseous fluid to be emitted out of said box as said jet of gaseous fluid.