Air outlet apparatus

An air outlet apparatus comprising a housing, at least one infeed conduit for operatively communicating the housing with an air preparation installation, said housing possessing an elongate substantially tubular-like body bounded by an outer surface, said tubular-like body being provided with throughpassage openings extending in the lengthwise direction thereof and at least over a portion of the outer surface, a mounting carried by said tubular-like body, said mounting having an outer wall, said outer wall enclosing a compartment between the mounting and the outer surface provided with said throughpassage openings of said tubular-like body, said throughpassage openings flow communicating the interior of said tubular-like body with said compartment, said mounting possessing a multiplicity of outlet openings distributively arranged in the axial direction of the tubular-like body, a portion of the tubular-like body being located internally of the mounting and said internally located portion of the tubular-like body being equipped with said throughpassage openings, a thin-foil throttle slide member positioned at said tubular-like body for coaction with said throughpassage openings thereof in order to regulate the flow of air between the interior of the tubular-like body into said compartment of the mounting and then through the outlet openings thereof, said thin-foil throttle slide member extending axially of the tubular-like body, and rotatable ring means cooperating with opposed ends of said thin-foil throttle slide member, means for operatively interconnecting said ring means at said opposed ends of said thin-foil throttle slide member with one another, rotation of any one of said ring means bringing about substantially equal circumferential movement of said thin-foil throttle slide member relative to the outer surface of said tubular-shaped body for selectively opening and closing said throughpassage openings.