Ergonomically friendly orbital sander construction
AssigneeHao Chien Chao
InventorPaul W. Huber
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Abstract
A random orbital sander including a housing, a motor having a vertical axis in the housing, a pad coupled to the motor, a face on the pad extending substantially perpendicularly to the vertical axis, a shroud surrounding the pad, an opening in the shroud, and a dust discharge tube having an inner end in communication with the opening and an outer end on the dust discharge tube end extending at an acute angle to the face of the pad. An orbital sander wherein the pad is supported from the sander housing by columnar units located on opposite sides of the motor. A bore in the motor shaft conducts compressed air through the chamber housing the bearings which support the spindle which mounts the pad.
Claims41
An orbital action surface-treating tool comprising a housing, a compressed air motor in said housing, a shaft in said motor, a rotor mounted on said shaft, compressed air ducts in said motor for conducting compressed air to said rotor, an eccentric housing mounted on said shaft, a chamber in said eccentric housing, at least one bearing in said eccentric housing, another duct in said shaft in communication with said compressed air ducts and said chamber for conducting compressed air to said chamber and to said at least one bearing in said chamber, a spindle mounted within said bearing, a pad, a backing on said pad, and a plurality of connections between said backing and said spindle.
An orbital action surface-treating tool comprising a housing, a compressed air motor in said housing, a shaft in said motor, a rotor mounted on said shaft, compressed air ducts in said motor for conducting compressed air to said rotor, an eccentric housing mounted on said shaft, a chamber in said eccentric housing, at least one bearing in said eccentric housing, ducts within said housing between said compressed air ducts and the side of said chamber proximate said rotor, a spindle mounted within said bearing, a pad, a backing on said pad, and a plurality of connections between said backing and said spindle.
An orbital action surface-treating tool comprising a housing, a compressed air motor in said housing, a shaft in said motor, a rotor mounted on said shaft, compressed air ducts in said motor for conducting compressed air to said rotor, an eccentric housing mounted on said shaft, a chamber in said eccentric housing, at least one bearing in said eccentric housing, and another duct in said shaft in communication with said compressed air ducts and said chamber for conducting compressed air to said chamber and to said at least one bearing in said chamber.
An orbital action surface-treating tool comprising a housing, a compressed air motor in said housing, a shaft in said motor, a rotor mounted on said shaft, compressed air ducts in said motor for conducting compressed air to said rotor, an eccentric housing mounted on said shaft, a chamber in said eccentric housing, at least one bearing in said eccentric housing, and ducts within said housing between said compressed air ducts and the side of said chamber proximate said rotor.
Dependencies are inferred from the claim text.