Ex parte FISH - Page 2




          Appeal No. 95-4615                                                          
          Application No. 08/158,853                                                  


               The subject matter on appeal is directed to a roof or lid              
          for melting furnaces, which generally has a diameter of twenty              
          six feet.  See specification, page 1.  Claims 1, 13 and 20 are              
          representative of the subject matter on appeal and read as                  
          follows:                                                                    
          1.   A furnace lid, comprising:                                             
               a center panel;                                                        
               side panels surrounding the center panel, each side panel              
          having an outer edge, an inner edge abutting the center panel               
          and lateral edges each extending between their outer edge and               
          their inner edge, and abutting a lateral edge of an adjacent                
          side panel, said side panels being inclined upwardly from                   
          their outer edges toward their inner edges, forming with the                
          center panel a lid having substantially a dome shape, the                   
          lateral edges and inner edges being formed with keyways                     
          accessible from a surface of the lid; and                                   
               keys located in the keyways, wherein the center panel,                 
          keys and side panels are formed of castable refractory.                     
          13.  A segment of a furnace lid comprising:                                 
               a substantially planar panel of precast refractory having              
          an upper surface, a lower surface, lateral edges and an inner               
          edge, wherein the lower surface has a portion inclined                      
          relative to the upper surface:                                              
               a concave channel extending along each lateral edge,                   
          located below the outer planar surface of the panel; and                    
               a relatively thin passage or recess formed along the                   
          lateral edges between an outer surface of the panel and the                 
          channel, connecting the channel and said outer surface of the               
          panel.                                                                      
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