Ex parte HOYT et al. - Page 3



          Appeal No. 98-1239                                                          
          Application No. 08/742,372                                                  


          directed to a spring hanger assembly for supporting a portion               
          of a pipe, line, would have commended itself to the attention               
          of one of ordinary skill in the art of flexible couplings, we               
          cannot agree that there is any suggestion to combine the                    
          teachings of Louette and Davidson in the manner proposed.                   
          The mere fact that the addition of a circumferential groove                 
          to the joint of Louette                                                     


          would prevent Louette's metal retainer from coming off, and                 
          thus result in a safer assembly, does not serve as a proper                 
          motivation to combine the teachings of Louette and Davidson                 
          as the examiner apparently believes.  Instead, it is well                   
          settled that it is the teachings of the prior art taken as a                
          whole which must provide the motivation or suggestion to                    
          combine the references.  See In re Fritch, 972 F.2d 1260,                   
          1266, 23 USPQ2d 1780, 1783-84 (Fed. Cir. 1992) and Uniroyal,                
          Tnc. v. Rudkin-Wiley Cozp., 837 F.2d 1044, 1051, 5 USPQ2d                   
          1434, 1438 (Fed. Cir. 1988).                                                
               Davidson, as we have noted above, is directed to a spring              
          hanger assembly for supporting a portion of a pipe line.                    
          Included in this hanger assembly is a flat lower plate 14                   
          that (1) retains a spring 16 within a cylindrical housing 10                

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