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. 02, 2005
Filed:
May. 14, 2004
Hidenori Uebayashi, Toyota, JP;
Hajime Morimoto, Toyota, JP;
Takashi Izuo, Toyota, JP;
Takeshi Sakuragi, Toyota, JP;
Keiichi Oikawa, Toyota, JP;
Hidenori Uebayashi, Toyota, JP;
Hajime Morimoto, Toyota, JP;
Takashi Izuo, Toyota, JP;
Takeshi Sakuragi, Toyota, JP;
Keiichi Oikawa, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An electromagnetic drive-type die casting decompression valve comprises a drive shaft, provided inside a drive block, driven by electromagnetic force from a solenoid, and a valve shaft, provided inside a valve block separate from the drive shaft, provided with a valve body on one shaft end. Also, a closing spring working jointly to urge the valve body in a closing direction is provided on the valve shaft, while an opening spring working jointly to urge the valve body in the opening direction is provided on the drive shaft. The valve block is also provided in a replaceable manner. According to this type of electromagnetically driven die casting decompression valve, bouncing is not caused at the time of closing a decompression valve, and it is also possible to significantly decrease maintenance time and repair costs even when problems arise, such as molten metal infiltrating into a valve body.