Ex parte SMITH et al. - Page 14




          Appeal No. 96-3130                                                          
          Application 08/225,653                                                      


          obviousness.  See, e.g., In re Fitzgerald, supra, and In re Best,           
          supra.                                                                      
               In view of the foregoing, we will sustain the rejection of             
          claims 11 and 28 under 35 U.S.C. § 103 based on the combined                
          teachings of Piatti and Sperry.                                             


               Considering now the rejection of claims 22, 23 and 26 under            
          35 U.S.C. § 103 as being unpatentable over Piatti in view of                
          Sperry, we observe that independent claim 22 expressly requires             
          that the first and second wedge portions are successively                   
          adjacent each other in the longitudinal direction.  In Piatti,              
          however, these wedge portions are located opposite one another in           
          the transverse direction.  Although the examiner's position with            
          respect to this limitation is less than clear, apparently the               
          examiner is of the opinion that such an orientation can be                  
          dismissed as a matter of design choice.  We disagree.  It is                
          self-evident that Piatti's arrangement, wherein the exhaust and             
          intake valves (and hence the wedges) are inclined in direction              
          toward each other would promote (rather inhibit) scavenging.                
          Accordingly, we will not sustain the rejection of claims 22, 23             
          and 26 under 35 U.S.C. § 103 based on the combined teachings of             
          Piatti and Sperry.                                                          

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