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:
Dec. 27, 1983
Filed:
May. 19, 1981
Applicant:
Inventor:
Noriaki Sasaki, Tokai, JP;
Assignee:
Doryokuro Kakunenryo Kaihatsu Jigyodan, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
173291 ; 73302 ; 73439 ;
Abstract
A method of ascertaining the state inside a melting furnace of a radioactive waste, which method comprises: blowing a gas into a molten matter in the melting furnace by using at least two slender tubes disposed at an upper and lower points with a gap .DELTA.h between said points; detecting a back pressure difference .DELTA.P at the slender tubes to determine the density .rho. of the molten matter; and determining the level h of the molten matter in the furnace using the density .rho.. It is also possible to detect the formation of a bridge inside the furnace due to a non-molten solid matter of the waste charged into the furnace.