摘要 |
A portable vacuum or blower/vacuum unit (10) having a motor (11), a fan (12), at least one air conduit (15) with a first portion (16) to receive the air flow generated by the fan and a second portion (17) remote from the fan (12), a mesh screen (18) within the air conduit (15) closely adjacent to the fan (12) to protect the fan (12) from the flow of debris along the air conduit, (15) and a stirrer (21) for deflecting debris away from the mesh screen (18), wherein the fan (12) is located to one side of the first portion (16) of the air conduit (15); and the second portion (17) of the air conduit (15) is able to be located in a position where the angle alpha between a longitudinal axis of the second portion (17) of the air conduit (15) and a radial plane defined by the fan impeller (which is perpendicular to the axis of rotation of the (fan 12)) is obtuse, so as to permit sufficient air conduit to at least substantially bypass, or to otherwise be deflected from the mesh screen (18).
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