Ex parte PETIT - Page 3




                     Appeal No. 96-3796                                                                                                                                                
                     Application 08/195,397                                                                                                                                            


                     (a) Claim 11                                                                                                                                                      

                                Appellant argues, inter alia, that Hickey '144 does not disclose, and Weisenbarger would not                                                           

                     have rendered obvious, the recited "adjustable means in said agitator line for shearing excess amounts                                                            

                     of said material ..."  The examiner states in his answer that this limitation is met by a valve, such as                                                          

                     shown in Fig. 8 of Hickey '144.                                                                                                                                   

                                We do not agree with the examiner.  While Hickey '144 discloses various shearing means in the                                                          

                     agitator line 29, such as static mixer 30A and sinuous path 29A, none of them is disclosed as                                                                     

                     adjustable.  As for the valve (31) of Fig. 8, to which the examiner refers, Hickey '144 does not disclose                                                         

                     that it is adjustable or performs a shearing function, unlike the throttle valve 94 disclosed by appellant.                                                       

                     The only apparently adjustable shearing means in the agitator line 29 disclosed by Hickey '144 might be                                                           

                     pump 30, but the "adjustable means" recited in claim 11 is not readable thereon because the claim also                                                            

                     recites a pumping means in the agitator line.                                                                                                                     

                                The rejection of claim 11 will therefore not be sustained.                                                                                             

                     (b) Claim 15                                                                                                                                                      
                                This claim requires that the agitator line, pumping means and flow constricting means  be                                  4                           

                     contained "within said separator column."  Hickey '144 does not disclose that line 29, pump 30 and                                                                

                     flow constrictor 29A or 30A are located in the separator column 17, and we find no disclosure in                                                                  

                                4We note that "said flow constricting means" in lines 20 and 21 has no antecedent basis.  This                                                         
                     informality should be corrected in subsequent prosecution.                                                                                                        
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