Ex parte MANNAVA - Page 2




                 Appeal No. 1997-2075                                                                                     Page 2                        
                 Application No. 08/362,362                                                                                                             


                                                                   BACKGROUND                                                                           
                          The appellant's invention relates to an on the fly method                                                                     
                 of laser shock peening a gas turbine engine part.  An                                                                                  
                 understanding of the invention can be derived from a reading                                                                           
                 of exemplary claim 1, which appears in the appendix to the                                                                             
                 appellant's brief.2                                                                                                                    


                          The prior art references of record relied upon by the                                                                         
                 examiner in rejecting the appealed claims are:                                                                                         
                 Fishter et al. (Fishter)                                       4,411,730                                    Oct.                       
                 25, 1983                                                                                                                               
                 Duley et al. (Duley)                                  4,972,061                                    Nov. 20,                            
                 1990                                                                                                                                   
                 Vaccari, "Laser shocking extends fatigue life," American                                                                               
                 Machinist, pages 62-62, July 1992                                                                                                      



                          Claims 1 to 5 stand rejected under 35 U.S.C. § 103 as                                                                         
                 being unpatentable over Vaccari in view of Duley.                                                                                      




                          2However, we regard the following phrases from claim 1 as                                                                     
                 being somewhat confusing: "between relatively constant                                                                                 
                 periods" and "with the pulses around laser beam spots formed                                                                           
                 by the laser beam on the surface."                                                                                                     







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