Patent ID: 8479821

Claim:
An apparatus for removing obstructions from a pipeline comprising: a body member having a flow bore extending therethrough and a flow bore outlet, and at least one flow channel having an inlet and an outlet disposed through said body member; at least one sealing cup disposed on said body member between the inlet and outlet of said at least one flow channel, sealingly engaging the inner surface of said pipeline; a nozzle on the outlet of said at least one flow channel; a spear assembly having a first end, a second end and a spear assembly flow bore extending therethrough, wherein said first end is connected to said body member, said second end forms a point, and said spear assembly flow bore is in fluid communication with the flow bore; a knuckle joint between the body member and the spear assembly; and a check valve system having open and closed positions, disposed between said first and second ends of said spear assembly, said check valve system permitting fluid communication between the outer surface and the spear assembly flow bore when in an open position.