Patents by Inventor John N. Wakefield

John N. Wakefield 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).

  • Demolding device for an injection molding part with an undercut
    Patent number: 8241031
    Abstract: An apparatus for releasing a part that has an undercut, particularly in an injection molding system. A flange is moveably mounted with respect to a moveable part of an injection mold. A head is moveably mounted with respect to the moveable part. A joint, such as a ball-and-socket joint, is used to connect the head with respect to the flange. The head has a shoulder that contacts a stop which is longitudinally fixed with respect to the moveable part, when the mold is in a closed position. A bias element can be used to normally urge the head in a lateral direction with respect to the moveable part.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: August 14, 2012
    Assignee: Progressive Components International Corporation
    Inventors: Glenn Starkey, John N. Wakefield
  • Demolding device for injection molding part with undercut
    Publication number: 20110020490
    Abstract: An apparatus for releasing a part that has an undercut, particularly in an injection molding system. A flange is moveably mounted with respect to a moveable part of an injection mold. A head is moveably mounted with respect to the moveable part. A joint, such as a ball-and-socket joint, is used to connect the head with respect to the flange. The head has a shoulder that contacts a stop which is longitudinally fixed with respect to the moveable part, when the mold is in a closed position. A bias element can be used to normally urge the head in a lateral direction with respect to the moveable part.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 27, 2011
    Applicant: Progressive Components International Corporation
    Inventors: Glenn Starkey, John N. Wakefield