Ex Parte Beitz et al - Page 8



              Appeal No. 2007-0517                                                                                       
              Application No. 10/768,647                                                                                 

              10) To improve absorptive capacity of the seam, Roslund teaches that “it is                                
              desirable to provide the cement strip with recurrent openings of appreciable size at                       
              frequent intervals.”  (Id. at col. 3, ll. 72-74).                                                          

              11) Roslund’s recurrent openings are defined as “areas where the fabric is not                             
              bonded and through which the moisture absorbed from the paper at the working                               
              surface of the felt can readily penetrate.”  (Id. at col. 4, ll. 5-10).                                    

              12) Roslund ‘097 teaches that increasing the number of openings improves                                   
              absorptive capacity at the seam but at the expense of seam strength.  Specifically,                        
              Roslund ‘097 states:                                                                                       

                     It is obvious that the grater the total area of the openings in relation to                         
                     the bonded area of the fabric, the greater will be absorptive capacity of                           
                     the drier felt at the seam.  Of course, the total area of openings should                           
                     be kept within practical limits as otherwise there will be insufficient                             
                     bonding to make a strong seam which will withstand the longitudinal                                 
                     strain on the drier felt during operation.                                                          

              (Id. at col. 4, ll. 65-73).                                                                                

              13) Roslund ‘097 states that:                                                                              
                     A further primary object of the invention is to provide a cement seam                               
                     for drier felts of such character that the porosity and moisture                                    
                     absorbing capacity of the felt at the seam will be maintained to a                                  

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