Millwork sanding sponge

Abstract

The present invention relates to a hand-held abrasive article. In one embodiment, the hand-held abrasive article includes an elongated resilient body having a perpendicular cross-sectional surface. The cross-sectional surface of the resilient body includes at least one internal right angle, at least one internal acute angle, at least one internal obtuse angle, and at least one curved portion. At least a portion of the resilient body is coated with abrasive.

1 . A hand-held abrasive article comprising: 
 an elongated solid foam resilient body having a perpendicular cross-sectional surface;    wherein the cross-sectional surface of the resilient body comprises: 
 at least one internal right angle;  
 at least one internal acute angle; and  
 at least one internal obtuse angle; and  
 at least one curved portion;  
   wherein at least a portion of the resilient body is coated with abrasive.    
   
   
       2 . The hand-held abrasive article of  claim 1 , wherein the cross sectional surface comprises: 
 a single internal right angle.    
   
   
       3 . The hand-held abrasive article of  claim 1 , wherein the cross sectional surface comprises: 
 a single internal acute angle.    
   
   
       4 . The hand-held abrasive article of  claim 1 , wherein the cross sectional surface comprises: 
 a single internal obtuse angle.    
   
   
       5 . The hand-held abrasive article of  claim 1 , wherein the cross sectional surface comprises; 
 a single internal right angle;    a single internal acute angle; and    a single internal obtuse angle.    
   
   
       6 . The hand-held abrasive article of  claim 5 , wherein the single internal acute angle is approximately 60 degrees and the single internal obtuse angle is approximately 120 degrees.  
   
   
       7 . The hand-held abrasive article of  claim 1 , wherein the entire elongated resilient body is coated with abrasive.  
   
   
       8 . The hand-held abrasive article of  claim 1 , wherein the elongated resilient body further comprises: 
 a first end; and    a second end, spaced from the first end;    wherein the first end and second end are substantially planar and parallel to one another and perpendicular to the elongated resilient body.    
   
   
       9 . The hand-held abrasive article of  claim 1 , wherein the elongated resilient body further comprises: 
 a first planar major surface;    a second planar major surface;    a third planar major surface;    a fourth planar major surface; and    a curved surface.    
   
   
       10 . The hand held abrasive article of  claim 9 , wherein: 
 the second planar major surface is contiguous with the first planar major surface;    the third planar major surface is contiguous with the second planar major surface;    the fourth planar major surface is contiguous with the third planar major surface;    the curved surface is contiguous with the fourth planar major surface and the first planar major surface.    
   
   
       11 . The hand-held abrasive article of  claim 10 , wherein: 
 the intersection of the second planar major surface with the first planar major surface forms the obtuse angle;    the intersection of the third planar major surface with the second planar major surface forms the right angle; and    the intersection of the fourth planar major surface with the third planar major surface forms the acute angle.    
   
   
       12 . The hand-held abrasive article of  claim 11 , wherein: 
 a cross-sectional length of the first planar major surface is at least about 2 inches;    a cross-sectional length of the second planar major surface is at least about 0.5 inches;    a cross-sectional length of the third planar major surface is at least about 3 inches;    a cross-sectional length of the fourth planar major surface is at least about 2 inches;    the curved portion has a radius of curvature of at least about 0.25 inches; and    the elongated resilient body comprises an overall length from about 2 inches to about 10 inches.    
   
   
       13 . The hand-held abrasive article of  claim 1 , wherein the resilient body comprises an open-celled foam material.  
   
   
       14 . A hand-held abrasive article comprising: 
 an elongated solid foam resilient body having a first end surface and a second end surface:    a first planar major surface extending between the first end surface and second end surface;    a second planar major surface extending between the first end surface and second end surface and contiguous with the first planar major surface;    a third planar major surface extending between the first end surface and second end surface and contiguous with the second planar major surface;    a fourth planar major surface extending between the first end surface and second end surface and contiguous with the third planar major surface;    a curved surface extending between the first end surface and second end surface and contiguous with the fourth planar major surface and the first planar major surface;    wherein at least one of the first planar major surface, second planar major surface, third planar major surface, fourth planar major surface, or curved surface is abrasive.    
   
   
       15 . The hand-held abrasive article of  claim 14 , wherein the elongated resilient body has a transverse cross-section comprising: 
 at least one internal right angle;    at least one internal acute angle; and    at least one internal obtuse angle.    
   
   
       16 . The hand-held abrasive article of  claim 15 , wherein: 
 the intersection of the first planar major surface and the second planar major surface forms the obtuse angle;    the intersection of the second planar major surface and the third planar major surface forms the right angle;    the intersection of the third major planar surface and the fourth planar major surface forms the acute angle.    
   
   
       17 . The hand-held abrasive article of  claim 16 , wherein: 
 the acute angle is approximately 60 degrees; and    the obtuse angle is approximately 120 degrees.    
   
   
       18 . The hand-held abrasive article of  claim 14 , wherein the elongated resilient body comprises an open-celled foam material.  
   
   
       19 . The hand-held abrasive article of  claim 14 , wherein each of the first planar major surface, second planar major surface, third planar major surface, fourth planar major surface, and curved surface is abrasive.  
   
   
       20 . A hand-held abrasive article comprising: 
 a solid foam resilient body having a first end surface and a second end surface;    a first planar major surface extending between the first end surface and second end surface;    a second planar major surface extending between the first end surface and second end surface;    a third planar major surface extending between the first end surface and second end surface;    a fourth planar major surface extending between the first end surface and second end surface;    a curved surface extending between the first end surface and second end surface;    wherein the intersection of two of the planar major surfaces form an acute angle, the intersection of two of the planar major surfaces form an obtuse angle, and the intersection of two of the planar major surfaces form a right angle;    wherein at least one of the first planar major surface, second planar major surface, third planar major surface, fourth planar major surface, and curved surface is covered with an abrasive material.    
   
   
       21 . The hand-held abrasive article of  claim 20 , wherein: 
 the second planar major surface is contiguous with the first planar major surface;    the third planar major surface is contiguous with the second planar major surface;    the fourth planar major surface is contiguous with the third planar major surface;    the curved surface is contiguous with the fourth planar major surface and the first planar major surface.    
   
   
       22 . The hand-held abrasive article of  claim 21 , wherein: 
 the intersection of the first planar major surface and the second planar major surface forms the obtuse angle;    the intersection of the second planar major surface and the third planar major surface forms the right angle;    the intersection of the third major planar surface and the fourth planar major surface forms the acute angle.    
   
   
       23 . The hand-held abrasive article of  claim 22  wherein: 
 the acute angle is approximately 60 degrees.    the obtuse angle is approximately 120 degrees.    
   
   
       24 . The hand-held abrasive article of  claim 20 , wherein the first planar major surface, second planar major surface, third planar major surface, fourth planar major surface, and curved surface is abrasive.  
   
   
       25 . The hand-held abrasive article of  claim 20 , wherein the resilient body comprises an open-celled foam material.