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:
Jan. 14, 1992
Filed:
Sep. 17, 1990
Shen H Bai, Toledo, OH (US);
Doehler-Jarvis Limited Partnership, Toledo, OH (US);
Abstract
An open-top, heat-resistant container, such as a molten metal ladle for filling the shot sleeve of a die casting machine, having a block rigidly attached to the ladle and partly submerged into the surface of the molten metal in the container or ladle for reducing a major portion of at least half of the area of the exposed surface of the molten metal in the container. The block may be vertically adjustable for varying the amount of immersion into the molten metal when the predetermined amount of molten metal retained in the container has been reached by flow over a weir edge of the container or ladle. A fraction of a centimeter difference in level of molten metal in the container multiplied by the exposed area of molten metal in the container can amount to a kilogram difference in the molten metal measured by the tilt and weir of the container or ladle. Thus, the less the exposed area of the surface in the container, the more repeatable the measured amount of molten metal can be poured from the container. The ladle is mechanically movable from immersion in a tank of molten metal to a position above the tank for overflow of molten metal over the weir edge and/or tilting of the container to a predetermined angle to retain a measured amount of molten metal, and lastly pouring that measured amount into a mold, then starting the cycle over again.