Device for ventilation and/or air circulation
AssigneeFlettner Ventilator Limited
InventorsChris Hurlstone, Mark Anthony Di Cioccio
Life of this patent
Estimating the term…
Abstract
A device comprising a rotor and fan rotatably mounted on a shaft which is rigidly fixed relative to a vehicle surface. The device is fixable on a vehicle surface by means of two clamping portions which are moveable towards each other along the shaft to press against a surface between them.
Claims11
A device for ventilation and/or air circulation comprising a fan, a rotor capable of being rotated by moving air for driving the fan and a fixing portion for fixing the device to a mounting surface, wherein the fixing portion comprises co-operating upper and lower clamping portions for respectively clamping above and below the mounting surface, the clamping portions being movable relative to each other to clamp or release a surface between them, and each comprising a hub portion connected by spoke elements to a peripheral clamping surface, and the fixing portion also comprising a clamping element passing through the respective hub portions for applying a clamping force to press the peripheral clamping surfaces about the mounting surface.
A device according to any preceding claim wherein the hubs of the respective clamping portions have cooperating or matching bores for receiving a common shaft or bolt and the clamping element moves or locks the clamping portions relative to each other along the common shaft or bolt.
A ventilating device according to any preceding claim wherein the fan is a centrifugal fan.
A ventilating device according to any preceding claim wherein the fan and rotor are fixed relative to each other.
A device according to any preceding claim wherein the rotor comprises a base plate, an air scoop extending upwardly from the base plate comprising two curved rotor blades in spaced overlapping relation with their concave or partly concave surfaces in opposition to define a passage between the rotor blades.
Dependencies are inferred from the claim text.