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:
Dec. 08, 1998
Filed:
Oct. 21, 1996
Kaoru Umino, Yokohama, JP;
Ariake Ceramic Constructions Co., Ltd., Atsugi, JP;
Abstract
By a method that may be used for transferring molten metal by using pressurized gas, molten metal in a metal furnace is automatically sucked into a molten metal chamber installed within the metal furnace through a fluid suction pipe by a balanced pressure inside the chamber. Then, when the molten metal sucked into the chamber is transferred to a specified position through a fluid feed pipe by applying a pressurized gas from an upper part of the chamber, the flow rate of the molten metal at the junction part between the fluid suction pipe and feed pipe or at the opposed part of an open end of the fluid suction pipe against that of the fluid feed pipe is accelerated, creating a higher flow rate at other parts of the fluid feed pipe. A molten metal transfer apparatus includes a molten metal chamber installed in a metal furnace and having a tightly closed upper part. The molten metal chamber is connected with an inlet/outlet pipe for pressurized gas and the lower part of the chamber is connected with a base part of a fluid feed pipe. In the vicinity of the base part of the fluid feed pipe, a fluid suction pipe is connected, and the other end is opened at the lower part of the metal furnace, and the cross-sectional area of the fluid feed pipe at the junction between the suction pipe and the feed pipe is contracted so as to be smaller than that at other parts of the feed pipe.