Robert G Gamble

US Patent:

6618461, Sep 9, 2003

Filed:

Feb 12, 2001

Appl. No.:

09/781455

Inventors:

Yee Kwong Cheung - San Jose CA
Robert E. Gamble - Mountain View CA
Atambir Singh Rao - San Jose CA

Assignee:

General Electric Company - Schenectady NY

International Classification:

G21C 9004

US Classification:

376283, 376282, 376277, 376296, 376299

Abstract:

A nuclear reactor containment cooling system includes a containment vessel having a drywell and a wetwell, a cooling condenser submerged in a cooling pool of water located outside the containment vessel, a vent line extending from the condenser to a suppression pool disposed in the wetwell, and at least one drain line extending from the condenser to a condensate drain tank located in the drywell. An end of the drain line is vertically submerged below the surface of a pool of water in the drain tank. To enhance flow, a blower can be located in the drain line. The containment cooling system can include a drywell gas recirculation subsystem coupled to the vent line, and including a suction pipe coupled to the vent line, at least one valve located in the suction pipe, at least one blower coupled to the suction line, and a discharge pipe in flow communication with the drywell.

US Patent:

7558360, Jul 7, 2009

Filed:

Dec 31, 2003

Appl. No.:

10/749869

Inventors:

Robert Edward Gamble - Los Altos CA, US
Momtaz Mahdi Aburomia - Palo Alto CA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G21C 9/00

US Classification:

376280, 376283, 376277, 376282

Abstract:

An assembly includes a base grid configured to be disposed below a pressure vessel and spaced vertically above a floor of a containment vessel to define a sump therebetween. The assembly further includes an annular wall extending vertically upwards from the floor and laterally bounding the base grid and the sump. The wall separates the sump from a suppression pool, an inlet passage extending through the wall and providing flow communication between the sump and the suppression pool, and an outlet passage extending through the wall and providing flow communication between the sump and the suppression pool.

US Patent:

60699302, May 30, 2000

Filed:

Jun 24, 1998

Appl. No.:

9/103450

Inventors:

Robert E. Gamble - Mountain View CA
Per F. Peterson - Berkeley CA

Assignee:

General Electric Company - Schenectady NY

International Classification:

G21C 900

US Classification:

376282

Abstract:

Modified passive containment cooling systems for cooling a reactor core of a boiling water nuclear reactor are described. The passive containment cooling system (PCCS), in one form, includes a vent line coupled to the vacuum breaker. The vent line includes a first end, a second end, and a passage extending between the first and second ends for transporting noncondensibles between the first and second ends. The first end is coupled to PCCS condenser, and the second end is submerged in a suppression pool. A branch extends from an intermediate portion of the vent line and is coupled to the vacuum breaker. The branch includes a first end, a second end, and a passage extending between the first and second ends. The first end of the branch is coupled to the intermediate portion of the vent line so that the branch passage is in communication with the vent line passage. The second end of the branch is coupled to the vacuum breaker so that the branch slopes substantially downwardly from its second end to its first end.