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:
Feb. 07, 1984
Filed:
Feb. 24, 1982
Applicant:
Inventor:
Anthony Thrower, Dronfield, GB;
Assignee:
USS Engineers and Consultants, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D / ;
U.S. Cl.
CPC ...
222603 ; 222606 ; 164415 ; 164475 ;
Abstract
In submerged teeming operations the extended pouring tube which receives molten metal from a vessel via a nozzle has gas admitted thereto for protecting it against molten metal attack. A union block is sandwiched between the nozzle and pouring tube, block being surrounded by a metal jacket spaced therefrom to form a gas manifold to be fed with gas via a gas supply pipe. Gas admitted to the manifold is ejected, around the lower end of the union block, by a surrounding annular orifice into the pouring tube and flows downwardly along the wall thereof as a protective gas film.