Patents by Inventor Laihua Wang

Laihua Wang 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).

  • Patent number: 7770627
    Abstract: A vent assembly (453) for a high pressure die casting system including a pair of opposed chill blocks (450, 452) having corresponding chill surfaces defining a continuous vent chamber therebetween, each of the chill surfaces comprising a plurality of adjoining chill faces (62, 136, 162, 163, 170) extending the length of the vent chamber, each chill face having a corresponding chill face on the paired chill block defining a section of the vent chamber, the plane of each chill face being oriented at an angle to an adjoining chill face on the corresponding block. Preferably the chill face on a chill block is substantially equidistant from the chill face of the corresponding chill block defining the respective section of the vent chamber.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: August 10, 2010
    Assignee: Cast Centre Pty Ltd
    Inventors: Laihua Wang, Gary Savage, Kevin Rogers, Vu Nguyen
  • Publication number: 20080041550
    Abstract: A vent assembly (453) for a high pressure die casting system comprising a pair of opposed chill blocks (450, 452) having corresponding chill surfaces defining a continuous vent chamber therebetween, each of the chill surfaces comprising a plurality of adjoining chill faces (62, 136, 162, 163, 170) extending the length of the vent chamber, each chill face having a corresponding chill face on the paired chill block defining a section of the vent chamber, the plane of each chill face being oriented at an angle to an adjoining chill face on the corresponding block. Preferably the chill face on a chill block is substantially equidistant from the chill face of the corresponding chill block defining the respective section of the vent chamber.
    Type: Application
    Filed: September 17, 2004
    Publication date: February 21, 2008
    Applicant: Cast Centre Pty Ltd
    Inventors: Laihua Wang, Gary Savage, Kevin Rogers, Vu Nguyen