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. 18, 1979
Filed:
Jan. 30, 1978
Applicant:
Inventors:
Gerard Bentz, Elancourt-Trappes, FR;
Bernard Racouchot, Franconville, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ; C21C / ;
U.S. Cl.
CPC ...
266225 ; 266220 ;
Abstract
A gas delivery tube including tubular body portion of refractory material having a recess adjacent one end in which recess is housed a porous element for emitting small bubbles containing the gas. The body portion is provided with an internal gas inlet pipe, one end of which opens into an internal chamber in communication with said recess while at its other end the pipe terminates in means enabling it to be connected to a supply of gas. The delivery tube is especially useful for degasifying aluminium, copper, and their alloys.