B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
26/82
B66F 3/24 (2006.01) B25B 29/02 (2006.01) G21C 7/10 (2006.01) G21C 13/06 (2006.01)
Patent
CA 1134600
- 13 - Case 4303 IMPROVED CONTROL ROD DRIVE MECHANISM CLOSURE DEVICE ABSTRACT OF THE DISCLOSURE A device (10) for compressing a closure assembly (82) and an O-ring (80) within a control rod drive mechanism for a nuclear reactor in order to seal same. The device (10) applies a predetermined compressive force to the closure assembly (82) and O-ring (80) and has incorporated therein an angularly movable sleeve (18) which engages a lock nut (98) and threadably ad- vances same within the control rod drive mechanism so as to engage the closure assembly (82) and apply the predetermined compressive force to assembly (82) and O-ring (80). After depressurization, lock nut (98) retains closure assembly (82) and O-ring (80) within the control rod drive mechanism by a predetermined residual compressive force.
358113
Babcock & Wilcox Company The
Ridout & Maybee Llp
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