Ex Parte Hollingsworth - Page 7



                Appeal 2007-0040                                                                             
                Application 10/170,069                                                                       
                Patent 6,073,699                                                                             

                                   second hinge apparatus disposed across from the first                     
                            hinge apparatus, the second hinge apparatus hingedly                             
                            connecting the two body parts together and permitting the two                    
                            body parts to be hingedly openable on a second side of the                       
                            elevator.                                                                        

                            21.   An elevator for use in wellbore operations, the elevator                   
                            comprising                                                                       
                                   a first body part,                                                        
                                   a second body part,                                                       
                                   the body parts together defining an interior opening                      
                            through the elevator for accommodating a wellbore tubular                        
                            therein,                                                                         
                                   the body parts connected together and hingedly openable                   
                            on a side of the elevator,                                                       
                                   at least one first roller secured to at least one of the body             
                            parts to facilitate movement of a wellbore tubular within and                    
                            with respect to the elevator,                                                    
                                   wherein the least one first roller has a roller portion                   
                            thereof protruding into the interior opening for contacting an                   
                            exterior surface of a wellbore tubular within the interior                       
                            opening.                                                                         








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