Ex Parte Scioscio - Page 6

                Appeal 2007-2893                                                                             
                Application 10/818,885                                                                       

                      Claims 1, 2, 4-10, 12, and 13 are rejected under 35 U.S.C. § 103(a) as                 
                being unpatentable over the combination of Proctor and Park.                                 
                      Proctor teaches a device for transferring heat through a double walled                 
                container (Proctor, title and abstract).  Proctor’s container “may be used with              
                a liquid or solid held in any type or size container and is useable in the food              
                serving field in general.  The present invention can be used with cafeteria                  
                serving pans and coffee storage pots which store coffee made in large urns”                  
                (Proctor, col. 4, ll. 62-66).  Proctor’s “container includes an outer wall                   
                adapted to be heated by a heating source and an inner wall secured to the                    
                outer wall.  A sealed cavity is formed between the inner and outer walls.  A                 
                heat transfer liquid is located in the sealed cavity” (Proctor, col. 2, ll. 24-27).          
                In addition, Proctor teaches that “[t]he heat-transfer liquid substantially fills            
                the sealed cavity and preferably is an oil” (Proctor, col. 2, ll. 33-34).  More              
                specifically, Proctor teaches that the heat-transfer liquid does not completely              
                fill the space defined between the inner and outer walls (Proctor, col. 3, ll.               
                15-18), but instead is advantageously heated prior to sealing the liquid                     
                between the two walls to create a vacuum as the liquid cools within the                      
                sealed device (Proctor, col. 4, ll. 58-61).                                                  
                      According to Proctor, “[t]he heat-transfer liquid of the present                       
                invention may be any of various heat-transfer liquids known in the art”                      
                (Proctor, col. 4, ll. 8-9).  The double-walled enclosure may be made of, inter               
                alia, stainless steel (Proctor, col. 3, ll. 60-63).                                          






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