Aldo R Govi

US Patent:

40765849, Feb 28, 1978

Filed:

Jan 28, 1976

Appl. No.:

5/653175

Inventors:

Martin P. Golden - Penn Township, Allegheny County PA
Aldo R. Govi - Greensburg PA

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

G21C 708

US Classification:

176 36R

Abstract:

A top mounted nuclear reactor diverse rodded shutdown system utilizing gas fed into a pressure bearing bellows region sealed at the upper extremity to an armature. The armature is attached to a neutron absorber assembly by a series of shafts and connecting means. The armature is held in an uppermost position by an electromagnet assembly or by pressurized gas in a second embodiment. Deenergizing the electromagnet assembly, or venting the pressurized gas, causes the armature to fall by the force of gravity, thereby lowering the attached absorber assembly into the reactor core.

US Patent:

40789683, Mar 14, 1978

Filed:

Jul 28, 1976

Appl. No.:

5/709351

Inventors:

Martin P. Golden - Trafford PA
Aldo R. Govi - Greensburg PA

Assignee:

The United States Government as represented by the U. S. Department of
Energy - Washington DC

International Classification:

G21C 1306

US Classification:

176 87

Abstract:

A liquid-metal-cooled fast breeder power reactor is provided with a sealed head access area enclosure disposed above the reactor vessel head consisting of a plurality of prefabricated structural panels including a center panel removably sealed into position with inflatable seals, and outer panels sealed into position with semipermanent sealant joints. The sealant joints are located in the joint between the edge of the panels and the reactor containment structure and include from bottom to top an inverted U-shaped strip, a lower layer of a room temperature vulcanizing material, a separator strip defining a test space therewithin, and an upper layer of a room temperature vulcanizing material. The test space is tapped by a normally plugged passage extending to the top of the enclosure for testing the seal or introducing a buffer gas thereinto.