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:
Aug. 30, 2005
Filed:
Feb. 07, 2003
Kunio Shikata, Osaka, JP;
Yoshiaki Komuro, Osaka, JP;
Masayuki Ono, Osaka, JP;
Kumiko Kurohara, Osaka, JP;
Hideo Ishii, Osaka, JP;
Kunio Shikata, Osaka, JP;
Yoshiaki Komuro, Osaka, JP;
Masayuki Ono, Osaka, JP;
Kumiko Kurohara, Osaka, JP;
Hideo Ishii, Osaka, JP;
Sansha Electric Manufacturing Company, Limited, Osaka, JP;
Abstract
A casting apparatus has a melting pot () in which pieces of metal () to be melted is placed. A RF induction heater coil () is disposed in association with the melting pot () to heat the metal pieces (). An inverter () supplies the coil () with high-frequency power to melt the metal pieces () in the melting pot (), and the resulting molten metal is poured into a die (). A control unit (), after all of the metal pieces () having various sizes and shapes are melted, causes the operation of the inverter () to continue for a first time period and, after that, to suspend the operation of the inverter () for a second time period so that the heating can be stopped. After that, the control unit () causes the inverter () to resume its operation to heat the melted metal () in the melting pot () until the molten metal () assumes a predetermined state and, a third predetermined time after that, operates a melting pot driver () to cause the molten metal () to be poured into the die ().