Compounding, glazing or polishing pad

Abstract

A paint finishing pad adapted to be used on a drive assembly including a back up pad and a drive motor for rotating the back up pad. The paint finishing pad includes a layer of open cell polymeric foam having a front surface defined by a plurality of spaced projecting portions of the layer of foam, and loops projecting from a rear surface of the layer of foam for releasably attaching the paint finishing pad to a support surface on the back up pad.

We claim: 
     
       1. A pad for applying glaze to finish paint and adapted to be used on a drive assembly including a back up pad having a generally planar support surface and a drive motor for moving the back up pad in a plane parallel to said support surface during application of the glaze, said paint finishing pad comprising: a layer of resiliently compressible open cell polymeric foam having a generally planar rear surface and an opposite front surface defined by a plurality of spaced projecting portions of said layer defining recess between said projecting portions, said polymeric foam from which said layer is formed having a compression deflection value of about 0.4 pounds per square inch when compressed twenty five percent and of about 0.65 pounds per square inch when compressed sixty five percent in accordance with the test procedure in ASTM D3574; and   means attached to said rear surface for releasably attaching said paint finishing pad to the support surface of the drive unit.   
     
     
       2. A paint finishing pad according to claim 1 wherein said projecting portions of said layer of foam are disposed in a regular rectangular array, said layer has ridge portions recessed a first distance from the distal ends of said projecting portions, and said layer has a rectangular array of sockets recessed a second distance greater than said first distance from the distal ends of said projecting portions, with each of said sockets being bounded by the ridges between four adjacent projecting portions. 
     
     
       3. A paint finishing pad according to claim 2 wherein said second distance is more than about 0.64 centimeter (0.25 inch). 
     
     
       4. A paint finishing pad according to claim 1 wherein said projecting portions of said layer project more than about 0.64 centimeter (0.25 inch) beyond the recesses defined between said projecting portions. 
     
     
       5. A paint finishing pad according to claim 1 wherein said means attached to said rear surface for releasably attaching said paint finishing pad to the support surface of the drive unit comprises an attachment layer including a plurality of loops, and means for attaching said attachment layer to said layer of foam providing passageways between the attachment layer and the layer of foam that afford passage of liquid therebetween to facilitate cleaning of the paint finishing pad. 
     
     
       6. In combination, a drive assembly including a back up pad having a generally planar support surface and a drive motor for moving the back up pad in a plane parallel to said support surface,   a pad for applying glaze to finish paint and comprising a layer of open cell resiliently compressible polymeric foam having a generally planar rear surface and an opposite front surface defined by a plurality of spaced projecting portions of said layer defining recess between said projecting portions, said polymeric foam from which said layer is formed having a compression deflection value of about 0.4 pounds per square inch when compressed twenty five percent and of about 0.65 pounds per square inch when compressed sixty five percent in accordance with the test procedure in ASTM D3574; and   means for attaching the rear surface of said paint finishing pad to the support surface of the back up pad.   
     
     
       7. A combination according to claim 6 wherein said projecting portions of said layer are disposed in a regular rectangular array, said layer has ridge portions recessed a first distance from the distal ends of said projecting portions and extending between adjacent projecting portions, and said layer has a rectangular array of sockets recessed a second distance greater than said first distance from the distal ends of said projecting portions, with each of said sockets being bounded by the ridges between four adjacent projecting portions. 
     
     
       8. A combination according to claim 7 wherein said second distance is more than about 0.64 centimeter (0.25 inch). 
     
     
       9. A combination according to claim 6 wherein said projecting portions of said layer project more than about 0.64 centimeter (0.25 inch) beyond the recesses defined between said projecting portions. 
     
     
       10. A combination according to claim 6 wherein said means for attaching comprises a layer of material adhered to the rear surface of said layer of foam and having a plurality of projecting loops, and a layer along said support surface having a plurality of projecting hooks releasably engaging the loops on said layer of material. 
     
     
       11. A combination according to claim 6 wherein said means attached to said rear surface for releasably attaching said paint finishing pad to the support surface of the drive unit comprises an attachment layer including a plurality of loops, means for attaching said attachment layer to said layer of foam providing passageways between the attachment layer and the layer of foam that aford passage of liquid therebetween to facilitate cleaning of the paint finishing pad, and a layer along said support surface having a plurality of projecting hooks releasably engaging said loops. 
     
     
       12. In combination, a rotary drive assembly including a back up pad having a generally planar support surface and a drive motor for rotating the back up pad about a central axis normal to said support surface,   a pad for applying glaze to finish paint and comprising a layer of resiliently compressible open cell polymeric foam having a generally planar rear surface and an opposite front surface defined by a plurality of spaced projecting portions of said layer defining recess between said projecting portions, said polymeric foam from which said layer is formed having a compression deflection value of about 0.4 pounds per square inch when compressed twenty five percent and of about 0.65 pounds per square inch when compressed sixty five percent in accordance with the test procedure in ASTM D3574; and   means for attaching the rear surface of said paint finishing pad to the support surface of the back up pad.   
     
     
       13. A combination according to claim 12 wherein said projecting portions of said layer are disposed in a regular rectangular array, said layer has ridge portions recessed a first distance from the distal ends of said projecting portions and extending between adjacent projecting portions, and said layer has a rectangular array of sockets recessed a second distance greater than said first distance from the distal ends of said projecting portions, with each of said sockets being bounded by the ridges between four adjacent projecting portions. 
     
     
       14. A combination according to claim 13 wherein said second distance is more than about 0.64 centimeter (0.25 inch). 
     
     
       15. A combination according to claim 12 wherein said projecting portions of said layer project more than about 0.64 centimeter (0.25 inch) beyond the recesses defined between said projecting portions. 
     
     
       16. A combination according to claim 12 wherein said means for attaching comprises a layer of material adhered to the rear surface of said layer of foam and having a plurality of projecting loops, and a layer along said support surface having a plurality of projecting hooks releasably engaging the loops on said layer of material. 
     
     
       17. A combination according to claim 12 wherein said means attached to said rear surface for releasably attaching said paint finishing pad to be support surface of the drive unit comprises an attachment layer including a plurality of loops, means for attaching said attachment layer to said layer of foam providing passageways between the attachment layer and the layer of foam that afford passage of liquid therebetween to facilitate cleaning of the paint finishing pad, and a layer along said support surface having a plurality of projecting hooks releasably engaging said loops. .Iadd. 
     
     
       18.  A pad for applying glaze to finish paint and adapted to be used on a drive assembly including a back up pad having a generally planar support surface and a drive motor for moving the back up pad in a plane parallel to said support surface during application of the glaze, said paint finishing pad comprising: a layer of resiliently compressible open cell polymeric foam having a generally planar rear surface and an opposite front surface defined by a plurality of spaced projecting portions of said layer defining recess between said projecting portions, said polymeric foam from which said layer is formed having a compression deflection value generally in the range of about 0.29 to 0.49 pounds per square inch when compressed twenty five percent and generally in the range of about 0.43 to 0.77 pounds per square inch when compressed sixty five percent in accordance with the test procedure in ASTM D3574; and   means attached to said rear surface for releasably attaching said paint finishing pad to the support surface of the drive unit. .Iaddend. .Iadd.19. A paint finishing pad according to claim 18 wherein said projecting portions of said layer of foam are disposed in a regular rectangular array, said layer has ridge portions recessed a first distance from the distal ends of said projecting portions and extending between adjacent projecting portions, and said layer has a rectangular array of sockets recessed a second distance greater than said first distance from the distal ends of said projecting portions, with each of said sockets being bounded by the ridges between four adjacent projecting portions. .Iaddend. .Iadd.20. A paint finishing pad according to claim 18 wherein said projecting portions of said layer project more than about 0.64 centimeter (0.25 inch) beyond the recesses defined between said projecting   
     
     
        portions..Iaddend. .Iadd.21.  A paint finishing pad according to claim 19 wherein said second distance is more than about 0.64 centimeter (0.25 inch )..Iaddend. .Iadd.22. A paint finishing pad according to claim 18 wherein said means attached to said rear surface for releasably attaching said paint finishing pad to the support surface of the drive unit comprises an attachment layer including a plurality of loops, and means for attaching said attachment layer to said layer of foam providing passageways between the attachment layer and the layer of foam that afford passage of liquid therebetween to facilitate cleaning of the paint finishing pad..Iaddend. .Iadd.23. In combination, a rotary drive assembly including a back up pad having a generally planar support surface and a drive motor for rotating the back up pad about a central axis normal to said support surface,   a pad for applying glaze to finish paint and comprising a layer of resiliently compressible open cell polymeric foam having a generally planar rear surface and an opposite front surface defined by a plurality of spaced projecting portions of said layer defining recess between said projecting portions, said polymeric foam from which said layer is formed having a compression deflection value generally in the range of about 0.29 to 0.49 pounds per square inch when compressed twenty five percent and generally in the range of about 0.43 to 0.77 pounds per square inch when compressed sixty five percent in accordance with the test procedure in ASTM D3574; and   means for attaching the rear surface of said paint finishing pad to the support surface of the back up pad..Iaddend. .Iadd.24. A combination according to claim 23 wherein said projecting portions of said layer are disposed in a regular rectangular array, said layer has ridge portions recessed a first distance from the distal ends of said projecting portions and extending between adjacent projecting portions, and said layer has a rectangular array of sockets recessed a second distance greater than said first distance from the distal ends of said projecting portions, with each of said sockets being bounded by the ridges between four adjacent projecting portions..Iaddend. .Iadd.25. A combination according to claim 23 wherein said projecting portions of said layer project more than about 0.64 centimeter (0.25 inch) beyond the recesses defined between said projecting portions..Iaddend. .Iadd.26. A combination according to claim 24 wherein said second distance is more than about 0.64 centimeter (0.25 inch)..Iaddend. .Iadd.27. A combination according to claim 23 wherein said means for attaching comprises a layer of material adhered to the rear surface of said layer of foam and having a plurality of projecting loops, and a layer along said support surface having a plurality of projecting hooks releasably engaging the loops on said layer of material..Iaddend. .Iadd.28. A combination according to claim 23 wherein said means attached to said rear surface for releasably attaching said paint finishing pad to the support surface of the drive unit comprises an attachment layer including a plurality of loops, means for attaching said attachment layer to said layer of foam providing passageways between the attachment layer and the layer of foam that afford passage of liquid therebetween to facilitate cleaning of the paint finishing pad, and a layer along said support surface having a plurality of projecting hooks releasably engaging said loops..Iaddend.