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Assignee3M Innovative Properties Company
InventorsRoss A. Brown, Robert A. Follensbee, Stephen J. Yoos, Douglas C. Hunt, Gary L. Heacox
Estimating the term…
A spiral wound abrasive belt is formed from an abrasive media including a plurality of webs. The webs of the abrasive media may include coated abrasives joined by splicing media or other suitable joining material. Alternatively, the webs may include individual single or multiple layers that form a coated abrasive simultaneously along with the spiral belt without the use of additional joining material. A method of forming the spiral belt includes draping the abrasive media over a fixed hub at an angle to form the spiral belt while abutting the edges of the outermost web and overlapping the outermost web and adjacent web or webs. Heat and pressure may be applied to the joined edges to form a strong bond along the spiral seam. Another method includes introducing the webs forming the abrasive media at an angle and draping the webs over a fixed hub. The abrasive media may then be passed around an adjustable hub that provides tension in the spiral belt while allowing for different circumferentially sized belts. Continuous feeding of the input abrasive media or webs will result in a spiral belt of ever increasing width that may subsequently be slit to a desired width.
An endless spiral wound abrasive article comprising:
An endless spiral wound abrasive article comprising:
An endless spiral wound abrasive article comprising:
An endless spiral wound abrasive article comprising:
An endless spiral wound abrasive article comprising:
A method for forming a spiral wound endless abrasive article comprising the steps of:
A method for forming a spiral wound endless abrasive article comprising the steps of:
Dependencies are inferred from the claim text.