Magnetic attachment for box fan filter
OwnerMehran Minaeeghainipourinventor
Life of this patent
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Abstract
An air filter attachment apparatus for temporarily attaching a furnace-type air filter to a face of a box fan with a ferromagnetic box frame. The attachment apparatus comprises a plurality of magnetic flaps secured to respective top and side edges of the air filter, either directly or via a filter-receiving frame. The filter/frame is sized to approximate the face dimensions of the fan, and the flaps are foldable forwardly toward the fan to lie flat on top and side surface of the fan's metal box frame. Each flap includes magnetic attachment means to secure the flap to the fan.
Claims9
A filter attachment apparatus for temporarily attaching a rectangular, replaceable air filter to a face of a rectangular box fan having a metal frame, the apparatus comprising:
- an air filter, and a plurality of magnetic flaps foldably secured to respective top and side edges of the air filter, the magnetic flaps having outer free edge portions comprising magnetic attachment means on their inner faces, the outer free edge portions extending beyond a front face of the air filter when in a folded orientation essentially perpendicular to the front face of the air filter.
In combination with a rectangular box fan with a ferromagnetic metal frame, a filter attachment apparatus for temporarily attaching a rectangular, replaceable air filter to a face of the fan, the apparatus comprising:
- a plurality of magnetic flaps foldably secured to respective top and side edge portions of the air filter, the magnetic flaps having outer free edge portions including magnetic attachment means on their inner faces, the outer free edge portions extending beyond a front face of the air filter when in a folded orientation essentially perpendicular to the front face of the air filter to lay flat against and magnetically attach to metal top and side surfaces of the fan.
Dependencies are inferred from the claim text.