Ex Parte Severinsson - Page 2

                Appeal 2006-2596                                                                              
                Application 10/869,144                                                                        
                      Appellant invented a parking brake arrangement in an electrically                       
                operated brake, in which a rotary movement of an electric motor is                            
                transformed into a translational brake applying movement, and wherein an                      
                elasticity spring is arranged in series with the elasticity of the brake to                   
                provide a rotary parking brake force.  The elasticity spring is provided to                   
                address the problem of ensuring a satisfactory parking braking when disc                      
                brake portions heated during a preceding service braking cool off and return                  
                to normal size after their heat expansion (Specification [0005] – [0006]).                    
                Claim 1, the only independent claim before us on appeal, is illustrative of the               
                invention and reads as follows:                                                               
                             1. A parking brake arrangement in an electrically                                
                             operated brake, in which a service brake function                                
                             is performed by a rotary movement of an electric                                 
                             motor, transformed into a translational brake                                    
                             applying movement by a force transmission                                        
                             mechanism, characterized in that a parking brake                                 
                             function is performed by a separate elasticity                                   
                             spring so arranged in a force transmitting chain of                              
                             the brake that its elasticity is in series with the                              
                             elasticity of the brake and adapted to provide a                                 
                             rotary parking brake force also transformed into a                               
                             translation brake applying movement by the force                                 
                             transmission mechanism.                                                          

                      The Examiner relies upon the following as evidence of                                   
                unpatentability:                                                                              
                Wolfsteiner1                   WO 01/21977 A1            Mar. 29, 2001                       

                                                                                                             
                1 We, like the Examiner (Answer 3), derive our understanding of this                          
                reference from Wolfsteiner ‘477 (US 6,722,477 B1), which issued April 20,                     
                2004, on the U.S. national stage patent application of Wolfsteiner.                           
                                                      2                                                       

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