Patents by Inventor Yoshiyuki Shinki

Yoshiyuki Shinki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Die casting machine
    Patent number: 7210514
    Abstract: A lubricant oil feeder 2 of a due casting machine 1 is made up of a lubricant oil feed passage 19 for feeding a lubricant oil into a clearance between the inner peripheral surface of a sleeve 7 and the outer peripheral surface of an injection piston 9, a lubricant oil feed valve 20 for opening or closing the lubricant oil feed passage, an air feed passage 16 for feeding air into a clearance between the inner peripheral surface of the sleeve and the outer peripheral surface of the injection piston, and an air feed valve 18 for opening and closing the air feed passage, and the arrangement is such that the lubricant oil feed valve is initially opened to feed the lubricant oil into the clearance between the sleeve and the injection piston and the air feed valve is then opened to pump the lubricant oil by the air. It is possible to spread the lubricant oil extensively and quickly, and accordingly, the useful life of the sleeve and the injection piston can be improved with a reduced quantity of lubricant oil.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: May 1, 2007
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Yoshiyuki Shinki, Isamu Izutsu, Kazuko Nishiyama, legal representative, Akira Nishiyama, deceased
  • Die casting machine
    Publication number: 20060000573
    Abstract: Lubricant oil feeding means 2 of a die casting machine 1 comprises a lubricant oil feed passage 19 for feeding a lubricant oil into a clearance between the inner peripheral surface of a sleeve 7 and the outer peripheral surface of an injection piston 9, a lubricant oil feed valve 20 for opening or closing the lubricant oil feed passage, an air feed passage 16 for feeding air into a clearance between the inner peripheral surface of the sleeve and the outer peripheral surface of the injection piston, and an air feed valve 18 for opening and closing the air feed passage, and an arrangement is such that the lubricant oil feed valve is initially opened to feed the lubricant oil into the clearance between the sleeve and the injection piston and the air feed valve is then opened to pump the lubricant oil by the air. It is possible to spread the lubricant oil extensively and quickly, and accordingly, the useful life of the sleeve and the injection piston can be improved with a reduced quantity of lubricant oil.
    Type: Application
    Filed: June 24, 2005
    Publication date: January 5, 2006
    Inventors: Yoshiyuki Shinki, Isamu Izutsu, Akira Nishiyama, Kazuko Nishiyama