Patents by Inventor Uwe K. Melisch

Uwe K. Melisch 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).

  • Method of purging shooting pot and providing enhanced purge capability
    Patent number: 6649094
    Abstract: Methods for enhanced purging of an injection molding shooting pot assembly are provided. Old melt is purged from a shooting pot having an injection plunger slidably received in an injection cylinder. The plunger is moved by a powered piston, which moves the injection plunger to a purging position. The plunger is then arrested in the purging position. Sufficient new melt is injected through an inlet positioned such that the new melt sweeps substantially an entire volume of the injection cylinder ahead of the injection plunger in flowing between the inlet and a single outlet remote from the inlet.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: November 18, 2003
    Assignee: Husky Injection Molding Systems, Ltd.
    Inventors: John R. Galt, Anthony Paulovic, Jerzy Szajak, Uwe K. Melisch