Device for ventilation and/or air circulation
First Claim
1. 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.
1 Assignment
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Accused Products
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.
49 Citations
23 Claims
- 1. 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.
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21. A device for ventilation and/or air circulation comprising a centrifugal 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, wherein the fan and rotor are a single piece fixed relative to each other, and 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.
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22. 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, wherein the fan and rotor are coupled by a gearing arrangement, and 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.
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23. 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 clamping a clamping force to press the peripheral clamping surfaces about the mounting surface, 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.
Specification