Ex parte YUICHI ONO et al. - Page 3

          Appeal No. 96-1835                                                          
          Application 08/207,116                                                      

          examiner explains that                                                      
                    [t]he description is insufficient in regard to the                
               structure of the breather.  What material is the                       
               breather formed of?  Is it formed from cork, cotton, or                
               perhaps a specific type of synthetic material?  Is                     
               there a presently preferred embodiment of the breather                 
               which permits only gas to escape from the torque                       
               transmission chamber when the pressure in the chamber                  
               exceeds an upper limit value while preventing fluid                    
               from leaking therefrom, but which also allows air from                 
               outside the clutch to pass into the torque transmission                
               chamber when the pressure therein is below a                           
               predetermined lower limit? [answer, page 3]                            
               As indicated above, independent claim 1 recites a fluid                
          clutch comprising, inter alia,                                              
               at least one breather extending through said casing                    
               between the torque transmission gap and atmospheric air                
               for releasing gas from said torque transmission chamber                
               when pressure in said torque transmission chamber                      
               exceeds a predetermined upper limit value and for                      
               enabling inflow of atmospheric air to said torque                      
               transmission chamber when pressure in the torque                       
               transmission chamber is less than a predetermined lower                
               limit value.                                                           
               Claims 2 and 14, the other independent claims on appeal,               
          contain like recitations of the “at least one breather.”                    
               The examiner’s explanation of the rejection indicates that             
          the issue on appeal is whether the appellants’ specification                
          complies with the enablement requirement of 35 U.S.C.  112,                
          first paragraph, with regard to the claimed fluid clutch having             
          the at least one breather.  The breather is described on page 20            
          of the appellants’ specification as follows:                                

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