Patents by Inventor John Jandura

John Jandura 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: 6837699
    Abstract: The invention of this patent is to be used in molding applications. An external applied force causes an actuator rod to move in a linear motion. This motion causes two platens to move simultaneously together to form a clean, even mold. The platens move linearly on tie bars, which guide the linear movement of the platens. Linkage arms are mounted on a mounting plate and the linkage arms are connected to the platens. This allows the clamping and applied force stresses on the platens to be dependent on the mounting plate, rather than the tie bars. The platens travel at the same speed and distance in relation to each other. The result is an evenly produced part that comprises two die or mold halves which are perfectly centered.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: January 4, 2005
    Inventor: John Jandura
  • Publication number: 20030175378
    Abstract: The invention of this patent is a method and apparatus used in molding applications. An external applied force causes an actuator rod to move in a linear motion. In turn, a rotary linkage rotates about its pivot point. This causes a series of linkage connectors to cause linkage arms to rotate around such linkage arms' pivot point. This rotary action causes platens to move simultaneously together to form a clean, even mold. While the platens move linearly on tie bars, which guide such linear movement, the linkage arms and rotary linkage are mounted on a mounting plate. This allows the clamping and applied force stresses on the platens to be dependent on the mounting plate, rather than the tie bars. The platens travel at the same speed and distance in relation to each other. The result is an evenly produced part that comprises two die or mold halves which are perfectly centered.
    Type: Application
    Filed: March 14, 2002
    Publication date: September 18, 2003
    Inventor: John Jandura