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US 4,413,371 AGranted
Blower attachment for portable power unit
AssigneeEmerson Electric Co.
InventorsLloyd H. Tuggle, Ronald C. Loyd
Life of this patent
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AssigneeEmerson Electric Co.
InventorsLloyd H. Tuggle, Ronald C. Loyd
Estimating the term…
A lightweight air blower attachment for a portable power unit such as a hand held internal combustion engine. The blower attachment includes a generally tubular shaped housing adapted for close coupling of the blower to the power unit. The housing provides a shroud and a support for an axial flow impeller having a shaft which extends through a mounting boss on the housing and includes a drive tang adapted to be drivably connected to a power takeoff shaft. The blower includes an elongated nozzle having a handle portion and being rotatably mounted on the housing to provide for changing the direction of the exit air flow without rotating the entire power unit and blower attachment. The nozzle is provided with a conical portion which converges to a throat and transitions to a somewhat flat circular sector shaped air exit portion providing for an air flow pattern particularly adapted for sweeping and dusting operations.
An air blower attachment for a portable power supply unit comprising:
An air blower for attachment to a portable power supply unit comprising an internal combustion engine having a power takeoff shaft provided with a socket, and a boss disposed coaxially with said power takeoff shaft, said boss having a cylindrical bore and exterior threads formed on said boss, said air blower including a housing including means for threadably engaging the exterior threads on said boss to secure said air blower to said power supply unit, a drive shaft rotatably supported on said housing for engagement by the power takeoff shaft, and air moving impeller means secured to and driven by said drive shaft.
An air blower for attachment to a portable power supply unit and comprising:
An air blower for attachment to a portable power supply unit and comprising:
Dependencies are inferred from the claim text.