Patent ID: 6190090
Filing Date: 2001-02-20
Classification: B08B,F16L,Y10S

Abstract:
An apparatus for use in a pipeline (1), the pipeline (1) having an interior surface in contact with the apparatus, the apparatus being propelled within the pipeline (1) by pipeline fluids flowing therein, the apparatus comprising:a housing (3) having a front end, a back end, a vertical axis, a longitudinal axis, an entry opening adjacent the back end through which pipeline fluids may enter the housing (3) and an exit opening adjacent the front end through which pipeline fluids may exit the housing (3), the exit opening being in fluid communication with the entry opening;means disposed peripherally of the housing (3) for sealing engagement of the housing (3) with the interior surface of the pipeline (1);at least two bonnets (77, 82) having openings, the at least two bonnets (77, 82) extending from the front end of the housing (3);wherein at least one of the bonnets (77) is movable in relation to another of the at least two bonnets (82); andmeans for variably aligning the openings (78, 79, 83, 84) in the bonnets (77, 82) so as to permit the exit of pipeline fluids through the exit opening, through the aligned openings and from the housing (3) at an acute angle to the vertical axis.