Barrel fan with enclosed motor
AssigneeAirmaster Fan Company
InventorsJames L. Davis, Robert H. Lazebnik, Stanley J. Riske
Life of this patent
Estimating the term…
Abstract
A barrel fan for the heavy duty circulation of air at the floor level consisting of a cylindrical tubular housing having a guarded rotating propeller blade therein. The blade is driven by a belt connected to an electric motor located on the lower exterior portion of the housing preferably shielded by a skirt in ventilating communication with the housing interior for motor cooling purposes. The motor is pivotally mounted and a spring interposed between the motor and housing maintains the tension within the belt.
Claims5
A barrel fan comprising, in combination, a tubular barrel housing having an axis and a lower side portion, a blade shaft rotatably mounted within said housing substantially coaxial with said axis, a blade mounted on said shaft, a belt pulley mounted on said shaft, an electric motor having an output shaft pulley, an electric motor support pivotally mounted on the exterior of said housing, said motor being mounted on said support for pivotal movement away and toward said shaft, a spring interposed between said motor and said housing biasing said motor away from said blade shaft, a flexible belt connecting said blade shaft belt pulley and said motor output shaft pulley, said spring maintaining said belt tight, an axle mounted on said barrel housing lower side portion having a length and axis substantially parallel to said barrel housing axis, said electric motor support being pivotally mounted upon said axle, and wheels rotatably mounted on said axle to facilitate movement of said barrel fan.
Dependencies are inferred from the claim text.