Patents by Inventor Stephen J. Cernava

Stephen J. Cernava 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).

  • Injection molding nozzle
    Patent number: 6609902
    Abstract: A nozzle for an injection molding runner system comprises a nozzle housing having a melt channel through it, a nozzle tip having a tip channel and at least one outlet aperture in communication with the tip channel, and a tip retainer that retains the nozzle tip against the nozzle housing such that the tip channel communicates with the melt channel. The tip retainer is significantly more thermally conductive than the nozzle tip. A nozzle seal that is significantly less thermally conductive than the tip retainer may be fused with the tip retainer, and may be annularly spaced from the nozzle tip.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: August 26, 2003
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Paul Richard Blais, Stephen J. Cernava, Fadi Fikani