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:
Sep. 24, 1991
Filed:
Apr. 27, 1990
Patrick D King, Rantoul, IL (US);
Flo-Con Systems, Inc., Champaign, IL (US);
Abstract
An injection block of an injection valve intended for bottom injection but optionally operable on the side of a teeming vessel for side injection is disclosed. The invention is directed specifically to a multi-passageway multi-orifice injection block in which the injection passages may be parallel, radially disposed around a frustoconical locus, or angled in a tangential fashion within the injection block. The thrust of the invention, however, is to stage the permeable elements in progressively more buried relationship to the hot face of the injection block sequenced in the order in which the particular passageways which are plugged by the porous plug are programmed for use. In this manner, progressive erosion of the wet or hot face of the injection block will progressively expose the upper portion of the permeable plug in accordance with the timed usage intended for the same.