The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 02, 1976
Filed:
Jan. 15, 1975
Applicant:
Inventors:
Hiroshi Goto, Hitachi, JA;
Toshiharu Arai, Hitachi, JA;
Tadao Sekiguchi, Tokyo, JA;
Hideo Hara, Sagamihara, JA;
Assignee:
Hitachi, Ltd., , JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24F / ;
U.S. Cl.
CPC ...
98 36 ; 176 30 ; 176 37 ; 432 64 ;
Abstract
A gas shielding method for a fuel exchange pool in which, in order to shield radioactive gas generated in said fuel exchange pool by forming a gas curtain flowing in one direction above the fuel pool, both a ratio between a blown-out quantity and a sucked quantity of the gas flow and a temperature difference between the gas and the water in the fuel pool are suitably selected.