Ex parte BRIAN E. FITZGERALD et al. - Page 5

          Appeal No. 96-0814                                                          
          Application 08/066,331                                                      

               The disclosed device, in pertinent part, includes a body 25            
          having a fixture 26 mounted thereon for rotational movement about           
          an axis x-x.  The examiner’s criticism of the claims centers on             
          the frictional locking mechanism for preventing rotation of the             
          fixture 26 relative to the body 25.  The specification describes            
          the operation of the locking mechanism as follows:                          
               . . . A locking mechanism (not shown), is located                      
               within body 25 around the horizontal shaft.  Thus, this                
               clamp-like mechanism acts as a brake to frictionally                   
               engage and hold the fixture in any angular position                    
               relative to the body.  More particularly, this locking                 
               mechanism is shown as including a dogleg-shaped                        
               intermediately-pivoted lever 31 mounted on the crank                   
               arm.  The upper marginal end portion of the lever 31 is                
               aligned with crank arm hole 30, and is arranged to be                  
               selectively engaged by the distal end face of pin 23,                  
               when pin 23 is selectively inserted into hole 30.  The                 
               other marginal end portion of lever 31 is arranged to                  
               release the locking mechanism.                                         
               . . . . When pin 23 is inserted into hole 30, it will                  
               engage lever 31, and disengage the locking mechanism,                  
               thereby allowing the fixture to rotate relative to the                 
               body.  The pin in then moved through a circular arc                    
               about axis x-x to move the fixture from the first                      
               angular position to a second angular position.                         
               Thereafter, the pin is withdrawn from hole 30.  When                   
               this occurs, the locking mechanism reengages to tightly                
               and securely hold the fixture in the new angular                       
               position relative to the body. [specification, page 4-                 
               In the present instance, the examiner appears to have no               
          difficulty in understanding how the pin 23 engages the upper                
          marginal end portion of the dogleg-shaped lever 31 to move the              


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