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Title: GAS SEAL

Abstract

A seal is described for a cover closing an opening in the top of a pressure vessel that may house a nuclear reactor. The seal comprises a U-shaped trough formed on the pressure vessel around the opening therein, a mass of metal in the trough, and an edge flange on the cover extending loosely into the trough and dipping into the metal mass. The lower portion of the metal mass is kept melted, and the upper portion, solid. The solid pontion of the metal mass prevents pressure surges in the vessel from expelling the liquid portion of the metal mass from the trough; the liquld portion, thus held in place by the solid portion, does not allow gas to go through, and so gas cannot escape through shrinkage holes in the solid portion.

Inventors:
;
Issue Date:
OSTI Identifier:
4041134
Patent Number(s):
2991905
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES
NSA Number:
NSA-15-022415
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-61
Country of Publication:
United States
Language:
English
Subject:
ENGINEERING AND EQUIPMENT; FLANGES; GASES; LIQUIDS; MELTING; METALS; PRESSURE; PRESSURE VESSELS; REACTORS; SEALS; SHOCK WAVES; SOLIDS

Citation Formats

Monson, H, and Hutter, E. GAS SEAL. United States: N. p., 1961. Web.
Monson, H, & Hutter, E. GAS SEAL. United States.
Monson, H, and Hutter, E. Tue . "GAS SEAL". United States.
@article{osti_4041134,
title = {GAS SEAL},
author = {Monson, H and Hutter, E},
abstractNote = {A seal is described for a cover closing an opening in the top of a pressure vessel that may house a nuclear reactor. The seal comprises a U-shaped trough formed on the pressure vessel around the opening therein, a mass of metal in the trough, and an edge flange on the cover extending loosely into the trough and dipping into the metal mass. The lower portion of the metal mass is kept melted, and the upper portion, solid. The solid pontion of the metal mass prevents pressure surges in the vessel from expelling the liquid portion of the metal mass from the trough; the liquld portion, thus held in place by the solid portion, does not allow gas to go through, and so gas cannot escape through shrinkage holes in the solid portion.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1961},
month = {7}
}