Ex parte RAO et al. - Page 18




          Appeal No. 96-3202                                                          
          Application No. 08/183,464                                                  


          35 U.S.C. § 103 are also sustained.                                         


          Claim 20                                                                    
               We will sustain the rejection of claim 20 under 35 U.S.C.              
          § 103.                                                                      


               The differences between Shiraya and claim 20 are the                   
          limitations that (1) the cam is mounted on a cam shaft, (2) a               
          solid film lubricant is impregnated in the porosity of the                  
          outer surface of the cam, and (3) the solid film lubricant is               
          comprised of graphite and at least one of boron nitride and                 
          molybdenum disulfide in either one of a high temperature                    
          polymer and epoxy base, the solid film lubricant has an                     
          affinity for oil and promotes rapid formation of a stable oil               
          film.                                                                       


               In applying the above noted test for obviousness, we                   
          reach the conclusion that it would have been obvious to one of              
          ordinary skill in the art at the time of the appellants'                    
          invention to                                                                


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