Louis J Zezza

US Patent:

44366930, Mar 13, 1984

Filed:

Sep 18, 1981

Appl. No.:

6/303410

Inventors:

Louis J. Zezza - Ossining NY
Iqbal Husain - Brookfield CT

Assignee:

Automation Industries, Inc. - Greenwich CT

International Classification:

G21C 1920

US Classification:

376272

Abstract:

A canister for holding loose nuclear fuel rods for containment within a cell of a pool storage rack. The canister is designed with lateral restraints at both its bottom and its top to substantially prevent impact with the sides of the cell during an earthquake.

US Patent:

51924927, Mar 9, 1993

Filed:

Jun 28, 1991

Appl. No.:

7/724389

Inventors:

Daniel M. Gately - Peekskill NY
Louis J. Zezza - Brookfield CT
William R. Masetti - White Plains NY

Assignee:

Consolidation Edison Company of New York, Inc. - New York NY

International Classification:

G21C 1300

US Classification:

376203

Abstract:

Method and apparatus for maintaining a water level which immerses heat exchanger tubes, containing radioactive emitting material, within an inner shell of a steam generator while permitting space between the inner shell and a coaxial outer shell to be free of water during operations performed by workmen in such space after the apparatus is installed thereby reducing exposure of the workmen to harmful radiation. Seal support segments are installed around the inner shell at the lower end of the space and in engagement with the inner and outer shells. A pair of inflatable tubes are placed end-to-end on the support segments so as to encircle the inner shell. Seal retention segments which, together, form a ring around the inner shell are placed on the inflatable tubes and the latter tubes are inflated to form a water tight seal between the shells. The water level in the shells can be lowered to a level below the inflatable tubes during installation of the components and the water level within the inner shell can be raised so as to immerse the radiation emitting tubes after inflation of the inflatable tubes, but preferably, the radiation emitting tubes are maintained immersed in water until the components are installed and the inflation of the inflatable tubes, and water in the space is then pumped out.

US Patent:

50074601, Apr 16, 1991

Filed:

Apr 3, 1989

Appl. No.:

7/331794

Inventors:

Louis J. Zezza - Brookfield CT
Frank Fiorelli - Danbury CT

Assignee:

Nuclear Energy Services, Inc. - Danbury CT

International Classification:

F16L 5512

US Classification:

138 89

Abstract:

In a nozzle dam assembly wherein a circular dam faces into a nozzle adjacent its opening and a support frame abuts the backside of the dam and is removably affixed across a ring encircling the opening, apparatus for selectively locating the dam at its optimum sealing position within the nozzle notwithstanding the particular longitudinal profile of the nozzle or eccentricity of the ring-relative to the nozzle opening comprising apparatus for adjusting the dam relative to the frame along the nozzle axis and also vertically and horizontally perpendicular to the nozzle axis.

US Patent:

41874331, Feb 5, 1980

Filed:

Aug 5, 1977

Appl. No.:

5/822084

Inventors:

Louis J. Zezza - Ossining NY

Assignee:

Automation Industries, Inc. - Los Angeles CA

International Classification:

G21F 500

US Classification:

250507

Abstract:

High storage density for spent nuclear fuel assemblies in a pool achieved by positioning fuel storage cells of high thermal neutron absorption materials in an upright configuration in a rack. The rack holds the cells at required pitch. Each cell carries an internal fuel assembly support, and most cells are vertically movable in the rack so that they rest on the pool bottom. Pool water circulation through the cells and around the fuel assemblies is permitted by circulation openings at the top and bottom of the cells above and below the fuel assemblies.