Patents Assigned to Polar Materials, Incorporated
  • Method for cleaning hollow articles with plasma
    Patent number: 5700327
    Abstract: A method of cleaning a hollow article comprises a step of introducing an oxidizing working gas into at least an interior portion of the hollow article, while a sub-atmospheric pressure is being maintained therein. Then, an electric field is applied, so as to convert the oxidizing working gas within at least the interior portion of the article into a low temperature plasma. This leads to oxidizing substances situated at least within the interior portion of the hollow article.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: December 23, 1997
    Assignee: Polar Materials, Incorporated
    Inventors: Robert J. Babacz, Kadthala R. Narendrnath, Kevin Frake, Melissa A. Baylog