Ex parte DZHRAGATSPANYAN et al. - Page 8




         Appeal No. 1998-3015                                    Page 8          
         Application No. 08/790,373                                              


         6.  Accordingly, we cannot sustain the examiner's rejection of          
         appealed claim 7 under 35 U.S.C. § 103.                                 


              Claim 5 depends from independent claim 1.  Claim 5                 
         includes the limitation that the chamber walls form first and           
         second chamber ports that "open respectively to said first and          
         second tubular screen ends at the inside of the tubular                 
         screen."  For the reasons set forth above with respect to               
         claims 6 and 7, this limitation is not suggested by the                 
         applied prior art.  Accordingly, we cannot sustain the                  
         examiner's rejection of appealed claim 5 under 35 U.S.C. §              
         103.                                                                    























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