Patent ID: 6338359
Filing Date: 2002-01-15
Classification: F17D,G01F,Y10T

Abstract:
A pipeline insertion device for pressurized pipelines comprising:a primary cylindrical housing having a primary interior chamber and sealed on one end by an upper end cap having an outlet communicable between the primary interior chamber and a primary valve; a lower lock down end cap having a central bore there through, and having opposing first and second surfaces, the first surface being adapted to removably mount and seal the opposing end of the primary cylindrical housing, the first surface further including a locking device; a secondary cylindrical housing having an exterior surface and a secondary interior chamber and sealed on one end by the second surface of the lock down end cap where said secondary interior chamber is communicable with said primary interior chamber through said whereby said elongated tubular extension is insertable and retractable through the ball valve opening by reciprocating the primary piston and said hollow tubular extension is telescopically insertable and retractable through the valve opening by reciprocating the secondary piston attached thereto, and whereby upon locking the primary piston to the first surface of the lock down end cap the primary housing may be removed to access the insertion tool.