Ex Parte Hoen et al - Page 6




          Appeal No. 2004-0111                                                          
          Application No. 09/930,098                                                    
          appellants, it merely requires one end to displace the compliant              
          diaphragm, which is precisely what the Thomas disclosure teaches.             
               The appellants also fail to account for the term                         
          “substantially” in claim 26.  The volume need not be maintained               
          absolutely constant, simply substantially.  The examiner’s                    
          position, which is unrebutted, is that the armature displacing the            
          diaphragm of Thomas need travel only a very short distance to                 
          close the valve gap.  We find this logic compelling - relative to             
          the overall volume, the change to seal the valve of Thomas appears            
          to retain a substantially constant volume in the valve chamber.               
               We therefore shall affirm this rejection as well.                        
                                   Summary of Decision                                  
               The rejection of claim 19 under 35 U.S.C. § 102(b) over                  
          Thomas is sustained.                                                          
               The rejection of claims 26-27 and 29-31 under 35 U.S.C.                  
          §102(b) over Thomas is sustained.                                             












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