Ex parte PECK et al. - Page 11

          Appeal No. 1997-2164                                                        
          Application No. 08/277,468                                                  

          does not teach or suggest brazing a ceramic feedthrough plate               
          directly to a vacuum package enclosure, where the feedthrough               
          has several holes with pins brazed in the holes.  We find that              
          Mizuhara teaches that metal pins can be brazed to ceramic                   
          substrate.  See column 2, lines 38 through 46.  Mizuhara                    
          teaches that feedthroughs are used to provide conductive paths              
          through ceramic articles, and specifically cites a magnetic                 
          inductive field flow meter where the feedthrough goes through               
          a ceramic cylinder.  See column 1, lines 12 through 20.  We                 
          agree with the Appellants' statement on page 5 of the brief                 
          that Mizuhara does not teach an enclosure of brazing the                    
          feedthrough plate to the enclosure.                                         
               We find that Oeschger neither teaches brazing the ceramic              
          feedthrough to the vessel nor that the vessel is a vacuum                   
          package enclosure.  We find that Oeschger teaches a                         
          feedthrough connector with a pin (item 13) going through a                  
          ceramic feedthrough (item 14).  We find that Oeschger teaches               
          that the brazing is done in one step.  Specifically, Oeschger               
          teaches that the device is assembled such that the brazing                  
          material (items 20, 22 and 23) which hold the ceramic                       
          feedthrough (item 14) to body (item 17) and the brazing                     

Page:  Previous  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  Next 

Last modified: November 3, 2007