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US 6,616,517 B2Granted
Wood floor sanding machine
AssigneeOnfloor Technologies, L.L.C.
InventorSimon Palushi
Life of this patent
Estimating the term…
Abstract
A power sanding machine (10) has three circumferentially spaced cogged belts (40) that are under tension via bearings (36) to drive three discs (52). A grounded vacuum (16) with a metal canister (74) is mounted on the operating handle (14). An attachment has sanding rollers (85) that freewheel as the sander is operated.
Claims14
A power sander for a wood floor comprising:
- a housing;
- a motor mounted to said housing and having a drive shaft;
- an inner housing member positioned within said housing and rotatably mounted on said drive shaft to allow rotation of said inner housing member with respect to both said housing and drive shaft;
- a plurality of pulleys circumferentially spaced about said drive shaft, operably connected to said drive shaft, and rotatably connected to said inner housing member;
- each pulley constructed to have a sanding member mounted thereon;
- said sanding member comprising a plate mountable to said pulley;
- at least one roller rotatably mounted about a horizontal axis on said plate;
- said roller fittable with an abrasive sanding layer about its outer surface and abuttable to a floor surface at its bottom section.
5 more elements
A power sander for a wood floor comprising:
- a housing;
- a motor mounted to said housing and having a centrally positioned downwardly extending drive shaft;
- an inner housing member positioned within said housing and rotatably mounted on said drive shaft to allow rotation of said inner housing member with respect to both said housing and drive shaft;
- a plurality of pulleys circumferentially spaced about said drive shaft and rotatably connected onto said inner housing member and carried by said inner housing member as it rotates;
- the axis of rotation of each pulley being parallel to the axis of rotation of said drive shaft;
- each pulley constructed to have a sanding element mounted thereon;
- a plurality of belts, each belt mounted about a respective one pulley and engageably driven by the drive shaft.
4 more elements
A power sander for a wood floor comprising:
- a housing;
- a motor mounted to said housing and having a centrally positioned downwardly extending drive shaft;
- an inner housing member positioned within said housing and rotatably mounted on said drive shaft to allow rotation of said inner housing member with respect to both said housing and drive shaft;
- a plurality of pulleys circumferentially spaced about said drive shaft and rotatably connected onto said inner housing member and carried by said inner housing member as it rotates;
- the axis of rotation of each pulley being parallel to the axis of rotation of said drive shaft;
- said plurality of pulleys being drivingly connected to said drive shaft for rotation about said respective axis of each pulley;
- each rotatable pulley having at least one sanding roller rotatably mounted thereon about a horizontal axis;
- said at least one sanding roller fittable with an abrasive sanding layer about its outer surface and abuttable to a floor surface at its bottom section.
5 more elements
Dependencies are inferred from the claim text.