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:
Oct. 20, 1987
Filed:
Feb. 18, 1986
Kenneth W Bates, Chesterfield, GB;
William A Griffiths, Chesterfield, GB;
Injectall Limited, Sheffield, GB;
Abstract
For introducing gases, wires and powders to metal melts, a multi-ducted refractory body (11) is installed in the wall (14) of a vessel (15) for the melt. The body has passage closing elements (24, 34, 35) preventing melt entering the passages (A, B, C). Two passages (A and C) serve respectively for introducing gas, and fluidized powders, to the melt: each has a movable pipe (36.91) (for gas or fluidized powder). Upon moving gas pipe (36) towards the melt, it dislodges closing element (24) whereby gas from the pipe can enter the melt via capillary bores (25). Similarly, by moving pipe (91), closing element: when it reaches the closing element (34) the wire can itself dislodge this element to gain access to the melt. A method of introducing substances to liquid related to uses of this apparatus is disclosed, as well as metallurgical processes involving the method.