Ex parte WALDREP - Page 9




          Appeal No. 1998-0093                                                        
          Application No. 08/459,301                                                  


          enter and exit the oven.  The reasons for such venting are as               
          follows:                                                                    
                    Further features of the invention include                         
               venting of the cooking compartment to permit its end                   
               panels to remain cool with a shorter overall length                    
               than is required when the cooking compartment is not                   
               ventilated.  This permits the end panels to be                         
               formed from wood which provides a pleasing aesthetic                   
               appearance of the cooking appliance.  Venting the                      
               compartment also lowers the temperature of the air,                    
               the lamp glass and the support grid and thereby                        
               improves reliability by reducing the possibility of                    
               damage to the plastic pouch. [Col. 2, ll. 1-10.]                       
          Specifically, vent openings 60 "provide ventilation at the                  
          opposite ends of the cooking compartment to reduce the air                  
          temperature in the cooking compartment and to help prevent                  
          overheating of the wooden end walls 16 and 18 and                           
          the microswitch 50" (col. 3, ll. 38-42).  Vent openings                     
          function as follows:                                                        
               Vent opening 61 provides ventilation of the space                      
               between wall 34 and the wooden end panel 16 and,                       
               therefore, cools the panel, the switch support wall                    
               38, the microswitch and the lamp sockets.  Vent                        
               opening 62 provides ventilation of the space between                   
               wall 36 and the wooden end panel 18 and, therefore,                    
               cools the panel and radiation shield 39 which is                       
               supported at its sides on wall 36.  Vent 61 also                       
               permits the use of a microswitch 50 rated for low                      
               temperature operation as contrasted with the more                      
               expensive high temperature types.  The switch is the                   
               most expensive single component in the oven; and a                     
               means for keeping it at lower temperatures is,                         

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