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:
Mar. 27, 2012
Filed:
Nov. 15, 2010
Katsumi Iwasa, Nagano, JP;
Yuji Tai, Nagano, JP;
Takahiro Tsunemi, Nagano, JP;
Hiroki Takeuchi, Negano, JP;
Katsumi Iwasa, Nagano, JP;
Yuji Tai, Nagano, JP;
Takahiro Tsunemi, Nagano, JP;
Hiroki Takeuchi, Negano, JP;
Nissin Kogyo Co., Ltd., Nagano, JP;
Abstract
A gravity casting method includes: situating a molding die having a feeder portion in communication with a cavity above the cavity to a horizontal state and pouring a molten metal from a runner in communication with the cavity; putting the molding die to a state inclined at a predetermined angle during pouring of the molten metal from a stage where the molten metal is filled in the runner and prevailing the molten metal while pouring to the inside of the cavity and the feeder portion; and returning the molding die to the horizontal state after the molten metal has been poured completely, and solidifying the molten metal.