Ex Parte Addie et al - Page 13



            Appeal 2007-1722                                                                               
            Application 10/212,919                                                                         

            reasoning to modifying prior art teachings.  See Id. at 1742, 82                               
            USPQ2d at 1397.   In this instance, common sense would dictate that                            
            a surface, such as defined in claims 23 and 25, which faces an                                 
            impeller, and against which particulates are being thrown, would                               
            desirably be angled obliquely relative to the axis of rotation to reduce                       
            wear from impacting particles.                                                                 

                                       CONCLUSIONS OF LAW                                                  
                  We affirm the rejection of claims 21-25 under 35 U.S.C. §103(a) as being                 
            unpatentable over Studebaker in view of a design choice.                                       
                  On the record before us, Appellants are not entitled to a patent containing              
            the claims on appeal.                                                                          

                                               DECISION                                                    
                  The decision of the Examiner to reject claims 21-25 is affirmed.                         
                  No time period for taking any subsequent action in connection with this                  
            appeal may be extended under 37 C.F.R. § 1.136(a).  See 37 C.F.R.                              
            § 1.136(a)(1)(iv) (2006).                                                                      
                                               AFFIRMED                                                    


            vsh                                                                                            


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