Ex parte DAWLEY et al. - Page 12




          Appeal No. 1998-2899                                                        
          Application No. 08/632,687                                                  



          Id. at 6.                                                                   
               The appellants argue that there is no motivation for                   
          combining the two embodiments of Fellows so that both a                     
          passage for pressurized air and the claimed means attached to               
          a low pressure area are provided on the same cylinder.  See                 
          brief, pp. 5, 6.  We agree.                                                 
               The embodiments shown in Figures 1 and 4 of Fellows are                
          so disparate (one uses an undersized sleeve mounted on an                   
          oversized                                                                   


          cylinder by expanding the sleeve with compressed air, the                   
          other uses an undersized cylinder connected to a vacuum source              
          for securing an oversized sleeve to the cylinder) that we know              
          of no reason why one of ordinary skill in the art would have                
          been motivated to combine their various features in the                     
          specific manner set forth in claim 32.                                      
               Further, even if it had been obvious to modify the                     
          embodiment shown in Figure 4 of Fellows by substituting axial               
          grooves for the circumferential grooves 26, the modified                    
          structure would still lack the cylinder having an outer                     

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