초록 ▼

A probe structure for inserting into and operating upon an object within a pipeline, especially a high pressure pipeline carrying liquid or gas, is characterized by two coaxial cylinders that can be either pneumatically or hydraulically actuated. A primary cylinder is adapted to be mounted onto a pi

A probe structure for inserting into and operating upon an object within a pipeline, especially a high pressure pipeline carrying liquid or gas, is characterized by two coaxial cylinders that can be either pneumatically or hydraulically actuated. A primary cylinder is adapted to be mounted onto a pipeline tee and/or valve, and includes a movable primary piston to which is fixedly attached a primary lower hollow shaft that moves with the primary piston and preferably a primary upper hollow shaft that also moves with the primary piston. The primary lower hollow shaft is adapted to selectively extend into the pipeline while the primary upper hollow shaft extends above the primary cylinder and is fixed to a secondary cylinder, such that the secondary cylinder moves with the primary piston. The secondary piston includes a secondary piston that moves independently of the first and second cylinders. A secondary hollow shaft is fixedly attached to the secondary piston and coaxially extends through the primary upper and lower hollow shaft, and a central bore in the primary piston, and is adapted to selectively extend into the pipeline. In this manner, an object attached to the primary lower hollow shaft may be inserted into the pipeline, while the secondary hollow shaft provides for a second operation to be performed on the object. Wires may extend through the secondary hollow shaft or air may be circulated therethrough for pneumatic purposes. As an alternative embodiment the automatic insertion device can comprise a removable primary cylindrical housing utilized for inserting the primary insertion tool and a secondary cylindrical housing for telescopically inserting a hollow tube.

대표청구항 ▼

1. 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 cen

1. 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.