Reactor vessel stud turnout tool
AssigneeWestinghouse Electric Corp.
InventorWilliam H. Krueger
Life of this patent
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Abstract
Apparatus for removing or inserting studs of a nuclear reactor vessel closure head so that the closure head may be removed for refueling the nuclear reactor. The apparatus comprises a carriage having an engagement mechanism for firmly contacting the studs and a rotation mechanism for rotating the engagement mechanism. A drive mechanism is also attached to the carriage for rotating the rotation mechanism. In addition, a support device is associated with the carriage that is capable of supporting the weight of the carriage during transit and of supporting the weight of the stud while the stud is being manipulated.
Claims9
Apparatus for manipulating reactor vessel studs comprising:
- a carriage;
- engagement means associated with said carriage for firmly contacting said studs;
- rotation means mounted on said carriage and connected to said engagement means for rotating said engagement means when said engagement means is in contact with said studs thereby manipulating said stubs;
- drive means mounted on said carriage and connected to said rotation means for rotating said rotation means;
- a vertical mounting member;
- a load equalizing device attached to said vertical mounting member for establishing a uniform vertical force;
- and
- a swivel connecting rod attached at one end to said load equalizing device and removably attachable to said studs at the other end for transmitting a uniform vertical force from said load equalizing device to said studs for maintaining a uniform vertical force on said studs.
Dependencies are inferred from the claim text.