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US 4,792,286 AGranted
Blower-vacuum apparatus
AssigneeTextron Inc.
InventorJames Gassen
Life of this patent
Estimating the term…
Abstract
The invention is directed to an improved blower-vacuum apparatus or unity which relies on the judicious placement of the components to reduce or eliminate vibration and rotation forces thereby contributing greatly to operator comfort.
Claims4
A blower-vacuum unit having a volute housing including a volute opening, a power unit, a centrifugal fan and a handle on the top of the housing, the handle having a rear section adapted to receive an operator's hand, the improvement comprising:
- a tangential volute opening having an axis which passes through the rear section of the handle, said power unity having a cylinder with a cylinder axis which is inclined 50 to 70 degrees from the axis of the volute opening and when said axis is projected to intercept the handle, said axis will intercept the rear portion of the handle.
Dependencies are inferred from the claim text.