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:
Jul. 01, 1980
Filed:
Mar. 17, 1977
Gerard A Lavanchy, Prilly-Lausanne, CH;
Marc-Henri Rossier, Epalinges, CH;
Maschinenfabrik & Eisengiesserei Ed. Mezger, Kallnach, CH;
Abstract
Method and apparatus for automatically controlling the pouring of molten metal into a series of closed casting molds is disclosed. Molten metal flows in a stream from a lip-pour or bottom-pour casting ladle into a pouring gate at the top of a mold and partially fills the gate. Visible light or infrared radiation is emitted from the metal surface in the gate and is detected by a sensing device. The sensing device generates a signal which is a function of the radiation received, and therefore the apparent area of the surface of metal in the gate. The signal operates a ladle control mechanism to control the flow rate of the stream to keep the gate level substantially constant during pouring.