Ex parte WIRZ - Page 7




          Appeal No. 96-2850                                                          
          Application 08/015,400                                                      


                    It would have been obvious to one of                              
                    ordinary skill in the printing art to                             
                    provide the foil of Wirz with a varying                           
                    thickness in view of Kobler et al. to                             
                    compensate for non-uniform rotation of the                        
                    cylinder thereby achieving clear printed                          
                    images. [Answer, fourth page].                                    


               We cannot sustain the § 103 rejection of claims 2, 4 and               
          5. The foil in the German Wirz reference is merely used to                  
          reduce the build-up or accumulation of dye on the printing                  
          cylinder in the embodiment of Figure 5.                                     


               The Kobler reference, on the other hand, does not                      
          disclose a “foil” as such. Nor is it concerned with the                     
          problem of eccentricity or other irregularities in the shape                
          of the outer cylindrical surface of a printing or impression                
          cylinder.                                                                   


               Instead, the Kobler reference addresses the problem                    
          arising from oscillations or vibrations of blanket cylinders                
          which act as impression or printing cylinders, causing non-                 
          uniform printing pressure between opposing blanket cylinders.               
          To overcome this problem, Kobler teaches the art to thicken a               
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