초록 ▼

A blower is provided having a plurality of tubular nozzles removably attachable to the blower enabling an operator to easily vary the velocity and air discharge pattern. The blower forms part of an operator carried power tool having a drive motor spaced from the blower assembly by a tubular boom con

A blower is provided having a plurality of tubular nozzles removably attachable to the blower enabling an operator to easily vary the velocity and air discharge pattern. The blower forms part of an operator carried power tool having a drive motor spaced from the blower assembly by a tubular boom containing a drive shaft. The blower comprises a blower housing having an axial air inlet and an air outlet defined by a tubular section. An impeller is pivotally mounted within the blower housing and driven by the drive shaft. As the impeller is rotated, air is drawn through the air inlet and discharged through one of a plurality of tubular nozzles mounted on the blower housing tubular section. Tubular nozzles have varying geometries to conveniently vary the discharge air pattern.

대표청구항 ▼

[ What is claimed is:] [1.] A blower system for use with an operator carried power tool having a drive motor with a motor housing and rotary output, an elongated tubular boom extending between the motor housing and the blower, and a drive shaft oriented within the tubular boom coupling the drive mot

[ What is claimed is:] [1.] A blower system for use with an operator carried power tool having a drive motor with a motor housing and rotary output, an elongated tubular boom extending between the motor housing and the blower, and a drive shaft oriented within the tubular boom coupling the drive motor rotary output to the blower, the blower comprising:a blower housing having a central axis and an internal cavity bounded by a top wall, a bottom wall and a circumferential wall, the top wall having a hub formed therein aligned with the central axis and an air inlet extending through the top wall allowing air to enter the internal cavity, the circumferential wall having a tubular section formed therein defining an air outlet for air to exit from the internal cavity;an impeller oriented within the internal cavity of the blower housing and pivotally mounted thereto for rotation about the central axis, the rotation of the impeller relative to the blower housing causing air to enter the internal cavity of the blower housing through the air inlet and be discharged through the air outlet; anda plurality of tubular nozzles each removably attachable to the tubular section of the blower housing, each of the tubular nozzles having a tubular connector for engagement with the tubular section of the blower housing, a tubular body providing an air passageway, and a discharge outlet for controlling the velocity and pattern of the discharged air, wherein the operator of the power tool can easily vary the air discharge pattern as a result of installing a selected one of the plurality of tubular nozzles on the tubular section of the blower housing.