Ex Parte Davlin et al - Page 13



          Appeal No. 2005-0874                                                        
          Application No. 10/320,073                                                  

                                      APPENDIX                                        
               22.       A method for regulating heat generated by a rotary           
               spindle assembly comprising inputting a temperature signal             
               generated by a temperature sensor and controlling a fluid              
               source as a function of said temperature signal, wherein               
               said rotary spindle assembly comprises:                                
                         a rotary drive motor;                                        
                         a rotary spindle coupled to said rotary drive                
               motor, said rotary spindle defining a lower spindle area and           
               an upper spindle area; and                                             
                         a heat regulating element arranged about said                
               rotary spindle and comprising a regulating element frame               
               defining a fluid inlet and a fluid outlet and a fluid                  
               conduit extending from said fluid inlet to said fluid                  
               outlet, wherein                                                        
                         said fluid source is coupled to said fluid                   
               conduit,                                                               
                    said fluid conduit defines a substantially                        
               cylindrical heat regulation void,                                      
                         said temperature sensor is coupled to said rotary            
          spindle assembly,                                                           
                    said heat regulation void defines an inside                       
               diameter selected to accommodate an outside diameter of said           
               rotary spindle and a circumferential gas flow path between             
               said rotary spindle and said fluid conduit,                            
                         said heat regulating element defines an open                 
               framework arranged about said rotary spindle such that upper           
               and lower ends of said heat regulating element are open to             
               said substantially cylindrical heat regulation void from               
               said lower spindle area to said upper spindle area; and                
               dimensions of said cylindrical heat regulation                         
               void defined by said heat regulating element are established           
               so as to permit flow of exhaust gases from said lower                  
                                         A1                                           




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