Holddown arrangement for removable cover of a pressurized nuclea

Details Holddown arrangement for removable cover of a pressurized nuclea Holddown arrangement for removable cover of a pressurized nuclea

1974-02-11

1976-06-15

Bentley, Stephen C.

Receptacles

Compartmented container

Compartment partition is movable or removable

176 87, 220224, G21C 900

Patent

active

039635651

ABSTRACT:
A pressurized nuclear-reactor core is surrounded by a burst shield having a side wall formed with a plurality of longitudinal passages in which are received longitudinal prestressing elements whose upper ends extend beyond the upper edge of the side wall. The cover is formed with a plurality of holes that register with the passages in the side wall so that the cover can be set over top of the side wall with the upper ends of the prestressing elements projecting beyond the cover. Each prestressing element is provided at its upper end with an anchor body which can bear in force-transmitting relationship either with the side wall of the burst shield through a sleeve received in the cover and having a lower end standing on the upper edge of the side wall and an upper end adjacent the anchor body, or with the cover by means of a removable nut screwed on to the anchor body and engageable in force-transmitting relationship with the cover. In use the anchor body is dimensioned to pass through the cover on the top of the side wall so that when this cover is to be removed the nut is unscrewed and the anchor body bears through the sleeve on the upper edge of the side wall in order that the side wall not be destressed.

REFERENCES:
patent: 3801448 (1974-04-01), Brandsetter
patent: 3814667 (1974-06-01), Klumb et al.
patent: 3837694 (1974-09-01), Frisch
patent: 3851906 (1974-12-01), Frisch et al.

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