Reactor stud hole plug unit

Details Reactor stud hole plug unit Reactor stud hole plug unit

1979-03-05

1982-01-26

Nelson, Peter A.

Induced nuclear reactions: processes, systems, and elements

Seal arrangements

376463, G21C 1306

Patent

active

043127088

ABSTRACT:
The reactor stud hole plug unit comprises a compression plate, a mandrel, an elastomeric seal ring adapted to be compressed during movement of the mandrel relative to the compression plate and a nut threaded to the mandrel to hold the unit in assembled relationship. The compression plate includes an annular rim spaced inward of the peripheral edge. The compression plate rests on the reactor wall surrounding the hole to be plugged with the rim extending into the hole. The mandrel which has a centrally threaded stud extending through the compression plate includes an upper cylindrical section and a lower cylindrical section of larger cross section with the two cylindrical sections being joined by a frustoconical section. The seal ring which has a rectangular cross section is dimensioned to snugly fit about the cylindrical upper section of the mandrel and to engage the compression plate rim in aligned relationship. Tightening of the nut draws the mandrel into the compression plate causing the ring seal to deform and fill the available space between the components of the plug unit and the wall of the hole.

REFERENCES:
patent: 303558 (1884-08-01), Campbell
patent: 3353566 (1967-11-01), Cepkauskas et al.
patent: 3494504 (1970-02-01), Jackson
patent: 3613936 (1970-04-01), Kaiser et al.
patent: 3629069 (1971-12-01), Wright
patent: 3806167 (1974-04-01), Notari et al.
patent: 3851906 (1974-12-01), Frisch et al.
patent: 3926722 (1975-12-01), Dupen
patent: 3979866 (1976-09-01), Prescott
patent: 3990942 (1976-11-01), Costes
patent: 4116767 (1978-09-01), John, Jr.

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