Device for the obturation and retention of a sealed closure plug

Details Device for the obturation and retention of a sealed closure plug Device for the obturation and retention of a sealed closure plug

1990-06-21

1992-03-10

Hunt, Brooks H.

Induced nuclear reactions: processes, systems, and elements

Seal arrangements

Between pressure vessel cover and vessel or portion thereof

376203, G21C 1300

Patent

active

050948091

ABSTRACT:
The device comprises a threaded rod (11a) capable of being screwed into the threaded bore (10') traversing the core (10) and solid, at one of its ends, with a blocking element (11b) the external diameter of which is greater that the diameter of the rod (11a) and which comes into engagement in that end (7) of the casing (4) of the plug (3) opposite the closure base (5) of the plug when the threaded rod (11a) is screwed into the core (10). The blocking element (11b) cooperates with the end of the casing (4) of the plug to achieve the blocking, against rotation and/or translation, of the obturating device (11). The threaded rod (11a) may comprise a transverse orifice in which a braking part is engaged.

REFERENCES:
patent: 3802466 (1974-04-01), Panella
patent: 3814136 (1974-06-01), Johnson et al.
patent: 3842612 (1974-10-01), Arnold
patent: 4436117 (1984-03-01), Martin
patent: 4465104 (1984-08-01), Wittman et al.
patent: 4751944 (1988-06-01), Sinha et al.
patent: 4771810 (1988-09-01), Ermold et al.
patent: 4784561 (1988-11-01), Cartry et al.
patent: 4986313 (1991-01-01), Mounet
patent: 5033511 (1991-06-01), Cacciuttolo et al.

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