US2006019579A1PendingUtilityA1

Non-loading abrasive article

44
Individually held — no corporate assignee on recordPriority: Jul 26, 2004Filed: Jul 26, 2004Published: Jan 26, 2006
Est. expiryJul 26, 2024(expired)· nominal 20-yr term from priority
Inventors:Ehrich J. BraunschweigEdward J. WooIan R. OwenThomas W. Rambosek
B24D 9/08B24B 55/102B24D 9/10
44
PatentIndex Score
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Cited by
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Claims

Abstract

An abrasive article and methods of making and using the same are disclosed. The abrasive article includes a particle impermeable back-up pad attached to an abrasive disc. The abrasive disc includes a plurality of perforations therethrough. When the abrasive article is moved and contacted against a workpiece, debris from the workpiece is captured between the back-up pad and workpiece.

Claims

exact text as granted — not AI-modified
1 . An article comprising: 
 a back-up pad having a particle impermeable major surface; and    an abrasive disc removably attached to the impermeable major surface, the abrasive disc including a plurality of perforations therethrough.    
   
   
       2 . The article of  claim 1 , wherein the perforations arc distributed over the entire disc.  
   
   
       3 . The article of  claim 2 , wherein the perforations are substantially uniformly distributed over the entire disc.  
   
   
       4 . The article of  claim 1 , wherein the perforations are distributed over an annular section of the disc.  
   
   
       5 . The article of  claim 1 , wherein the perforations are of substantially uniform size.  
   
   
       6 . The article of  claim 1 , wherein the disc is attached to the back-up pad via a hook and loop arrangement.  
   
   
       7 . The abrasive article of  claim 6 , wherein the hooking members are on the back-up pad and the loop members are on the disc.  
   
   
       8 . The article of  claim 1 , further including an adhesive layer between the back-up pad and the disc.  
   
   
       9 - 10 . (canceled)  
   
   
       11 . The article of  claim 1 , wherein the plurality of perforations is less than 14.  
   
   
       12 . A method of sanding comprising: 
 providing an article comprising a back-up pad having a particle impermeable major surface; an abrasive disc removably attached to the impermeable major surface, the abrasive disc including a plurality of perforations therethrough;    moving the abrasive article; and    contacting a workpiece with the abrasive article.    
   
   
       13 . The method of  claim 12 , wherein the perforations arc distributed over the entire disc.  
   
   
       14 . The method of  claim 13 , wherein the perforations are substantially uniformly distributed over the entire disc.  
   
   
       15 . The method of  claim 12 , wherein the perforations are distributed over an annular section of the disc.  
   
   
       16 . The method of  claim 12 , wherein the perforations are of substantially uniform size.  
   
   
       17 . The method of  claim 12 , wherein the disc is attached to the back-up pad via a hook and loop arrangement.  
   
   
       18 . The method of  claim 17 , wherein the hooking members are on the back-up pad and the loop members are on the disc.  
   
   
       19 . The method of  claim 12 , further including an adhesive layer between the back-up pad and disc.  
   
   
       20 - 22 . (canceled)  
   
   
       23 . The method of  12 , wherein the method of sanding includes wet sanding.  
   
   
       24 . The method of  claim 12 , wherein the method of sanding includes dry sanding.  
   
   
       25 . The method of  claim 12 , wherein moving the abrasive article includes manually moving the abrasive article.  
   
   
       26 . The method of  claim 12 , wherein moving the abrasive article includes moving the abrasive article with a powered device.  
   
   
       27 . A method of making an article comprising: 
 removably attaching a particle impermeable back-up pad to a disc, wherein the disc includes a plurality of perforations therethrough.    
   
   
       28 . The method of  claim 27 , wherein the perforations are distributed over the entire disc.  
   
   
       29 . The method of  claim 28 , wherein the perforations are substantially uniformly distributed over the entire disc.  
   
   
       30 . The method of  claim 27 , wherein the perforations are distributed over an annular section of the disc.  
   
   
       31 . The method of  claim 27 , wherein the perforations are of substantially uniform size.  
   
   
       32 . The method of  claim 27 , wherein the disc is attached to the back-up pad via a hook and loop arrangement.  
   
   
       33 . The method of  claim 32 , wherein the hooking members are on the back-up pad and the loop members are on the disc.  
   
   
       34 . The method of  claim 27 , further including an adhesive layer between the back-up pad and the disc.  
   
   
       35 - 36 . (canceled)  
   
   
       37 . The method of  claim 26 , wherein the powered device is an electric sander.

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