Ex parte PLEASANT - Page 6




          Appeal No. 1998-0256                                                        
          Application No. 08/395,768                                                  


          slide about or work loose."  As additionally described in the               
          specification (page 14),                                                    
                    The combined actions of the clamping forces                       
                    described above applied to the dam body                           
                    member 50 and the frictional forces between                       
                    the interengaged locking screws 66 and                            
                    undercut surfaces 42 cause the dam assembly                       
                    14 [to] be reliably, securely and tightly                         
                    clamped within the liquid conduit groove                          
                    34.                                                               

               As to the "preferred embodiment" of the invention                      
          (specification, page 7) appellant addresses "short locking                  
          screws" mounted within tapped "bores" with the screws being                 
          advanced into interfering engagement with inwardly facing                   
          "undercut surfaces" (Fig. 7).  As a "modification"                          
          (specification, pages 7 and page 8, and pages 16 and 17),                   
          appellant describes short locking "pins" to be driven through               
          dam member "bores" into interfering engagement with inwardly-               
          facing "undercut surfaces" (Fig. 8).  In the specification                  
          (page 17), relative to both embodiments (Figs. 7 and 8),                    
          appellant expressly indicates that a simple tool such as a                  
          screw driver or punch used to engage the exposed "heads" of                 
          the locking "screws or pins" is "all that is needed to                      
          effectuate the clamping of the dam assembly in place."                      
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