Reactor vessel stud turnout tool

Details Reactor vessel stud turnout tool Reactor vessel stud turnout tool

1977-11-21

1980-09-23

Bentley, Stephen C.

Tools

Wrench, screwdriver, or driver therefor

Machine

176 30, 176 87, 403 16, 81 573, G21C 1306

Patent

active

042235758

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.

REFERENCES:
patent: 3844533 (1974-10-01), Markiewicz
patent: 4047456 (1977-09-01), Scholz

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