Ex Parte MICHAELIS et al - Page 2




             Appeal No. 2000-1142                                                              Page 2              
             Application No. 08/753,230                                                                            


                                                 BACKGROUND                                                        
                    Appellants’ invention relates to a method for manufacturing a filter insert.  In               
             particular, the invention is a method for manufacturing an accordion filter insert having a           
             peripheral sealing lip that is manufactured with the frame that holds the accordion filter            
             pack.  According to Appellants, the sealing lip is elastically deformable which statically            
             holds the filter against housing.  (Brief, p. 2).   Claim 1 which is representative of the            
             claimed invention reproduced below:                                                                   
                    1.  A method for manufacturing an accordion filter insert, comprising the steps of:            
                    providing a mold having a cavity that defines a lip;                                           
                    introducing an accordion filter pack into said mold;                                           
                    forming a frame about the filter pack by introducing into the mold a liquefied                 
             polymer material, so that the polymer flows into spaces in the mold so as to form a frame             
             about the filter and a peripheral elastically deformable sealing lip on the frame when the            
             polymer subsequently solidifies, wherein the frame is manufactured concurrently with the              
             sealing lip.                                                                                          

                                             CITED REFERENCES                                                      
                    As evidence of unpatentability, the Examiner relies on the following references:               
             Peras                                    2,889,183                  Jun.    2, 1959                   
             Brimberg                                 3,082,587                  Mar. 26, 1963                     
             Wolf                                     3,869,392                  Mar.   4, 1975                    








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