Ex Parte Ludwig - Page 4



          Appeal No. 2005-0187                                                        
          Appeal No. 09/758,513                                                       
                    The scanning head 10 shown in FIG. 1 exhibits a                   
               cylindrical housing 16, which is sealed against chips,                 
               coolant and lubricant and similar disturbing                           
               influences.  The cable 14 for connecting to the                        
               controller 12 is attached to the scanning head 10 by                   
               means of a screwable connector 18.  In the housing 16                  
               there is an electric motor 20, which is designed as a                  
               d.c. motor.  The electric motor 20 is fed so as to                     
               reverse the polarity by means of a motor driver 22,                    
               disposed in the controller 12, via the cable 14.  The                  
               electric motor 20 drives by way of a precision tooth                   
               gearing 24 a shaft 26, which is run coaxially on the                   
               face side out of the housing 16.  A double lip seal 28                 
               seals the passage of the shaft 26 through the face-                    
               sided cover of the housing 16 against chips and                        
               coolant.  O-ring seals 30 seal the respective face-                    
               sided cover[s] of the cylindrical housing 16.  A pin                   
               holder 32, into which a feeler pin 34 can be clamped,                  
               is clamped via a setscrew 36 on the stump of the shaft                 
               26 that projects beyond the housing 16.  The feeler pin                
               34 that is clamped into the pin holder 32 protrudes                    
               radially from the shaft 26 [column 2, line 46, through                 
               column 3, line 5].                                                     
               Anticipation is established only when a single prior art               
          reference discloses, expressly or under principles of inherency,            
          each and every element of a claimed invention.  RCA Corp. v.                
          Applied Digital Data Sys., Inc., 730 F.2d 1440, 1444, 221 USPQ              
          385, 388 (Fed. Cir. 1984).  In other words, there must be no                
          difference between the claimed invention and the reference                  
          disclosure, as viewed by a person of ordinary skill in the field            
          of the invention.  Scripps Clinic & Research Found. v. Genentech            
          Inc., 927 F.2d 1565, 1576, 18 USPQ2d 1001, 1010 (Fed. Cir. 1991).           


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