Abrasive disc with universal hole pattern
Assignee3M Innovative Properties Company
InventorBrian D. Goers
Life of this patent
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Abstract
An abrasive disc for use with a sanding tool having a plurality of dust collection holes includes a hole pattern consisting of six openings arranged for substantial alignment with the dust collection holes provided in the sanding tool.
Claims20
A circular abrasive disc adapted for use with a first sanding tool having five dust collection holes and for use with a second sanding tool having eight dust collection holes, the circular abrasive disc defining precisely six openings, the six openings comprising a first circular opening, a second enlarged circular opening arranged 180 degrees from the first circular opening, a first pair of elongated openings arranged on opposite sides of the first circular opening, and a second pair of elongated openings having a size greater than the first pair of elongated openings arranged on opposite sides of the enlarged circular opening and between the enlarged circular opening and the first pair of elongated openings, wherein a major axis of a first one of the second pair of elongated openings intersects a major axis of a second one of the second pair of elongated openings at a location adjacent the second enlarged circular opening in a direction opposite the first circular opening.
A circular abrasive disc defining precisely six openings, the six openings comprising a first circular opening, a second enlarged circular opening arranged 180 degrees from the first circular opening, a first pair of elongated openings arranged on opposite sides of the first circular opening, and a second pair of elongated openings having a size greater than the first pair of elongated openings arranged on opposite sides of the enlarged circular opening and between the enlarged circular opening and the first pair of elongated openings, wherein a major axis of a first one of the second pair of elongated openings intersects a major axis of a second one of the second pair of elongated openings at a location adjacent the second enlarged circular opening in a direction opposite the first circular opening, and wherein the first and second circular openings are bisected by an axis about which a hole pattern defined by the six openings is symmetrical.
A sanding tool comprising:
- a dust collection system on a mounting surface, the system including either a five hole dust collection pattern or an eight hole dust collection pattern;
- and
- a circular abrasive disc defining precisely six openings, the six openings comprising a first circular opening, a second enlarged circular opening arranged 180 degrees from the first circular opening, a first pair of elongated openings arranged on opposite sides of the first circular opening, and a second pair of elongated openings having a size greater than the first pair of elongated openings arranged on opposite sides of the enlarged circular opening and between the enlarged circular opening and the first pair of elongated openings, wherein a major axis of a first one of the second pair of elongated openings intersects a major axis of a second one of the second pair of elongated openings at a location adjacent the second enlarged circular opening in a direction opposite the first circular opening, and wherein the first and second circular openings are bisected by an axis about which a hole pattern defined by the six openings is symmetrical.
Dependencies are inferred from the claim text.