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. 14, 1993
Filed:
Mar. 17, 1992
Toyoaki Ueno, Yamaguchi, JP;
Ube Industries, Inc., Ube, JP;
Abstract
A diecasting apparatus is mainly composed of: a mold unit having a movable mold and a stationary mold both of which have mold cavities in the meeting surfaces thereof and, also having an inlet formed at a lower portion of the mold unit and a vertical passage extending from the inlet upward to the mold cavity, and further having a sleeve connected to the inlet and thus communicating with the mold cavities through the inlet and the passage; and a supplying unit for supplying molten metal into the sleeve. A supplying passage is provided in the stationary mold, and has one of its openings at the inner surface of the inlet of the vertical passage, and communicates with the outside of the stationary mold. A duct connects the supplying passage and the supplying unit. A molten-metal heater is provided on the duct. A valve mechanism for opening and closing the supplying passage is composed of a valve seat and a valve. The valve seat is provided in the supplying passage, close to the inlet or the vertical passage, and is tapered so as to become wider toward the movable mold. The valve is supported by the movable mold and is moved to and away from the the valve seat by a driving unit.