Patent ID: 6182915
Filing Date: 2001-02-06
Classification: B63B,B65H,B66D

Abstract:
A detention unit for retrieval of an elongated body, comprising:first and second sets of movable friction surfaces, said first set including at least first and second movable friction surfaces, each said movable friction surface of said first set being provided with and operatively coupled to a respective, separate propulsion unit, said second set including at least one movable friction surface, each said movable friction surface of said second set being provided with and operatively coupled to a respective, separate propulsion unit;each movable friction surface including an arc section for receiving and pulling the elongated body; andsaid sets of movable friction surfaces being disposed in mutually opposed relation and said elongated body extending sequentially therebetween whereby said elongated body extends sequentially from the arc section of said first movable friction surface of said first set to the arc section of a first movable friction surface of said second set and then to the arc section of said second movable friction surface of said first set.