Patents Examined by Joseph Del Sel
  • Internal bubble cooling control system and method
    Patent number: 6562263
    Abstract: An internal bubble cooling air control system in a blown film apparatus has sensors arranged to increase response time and reduce interference, and includes a high speed valve for fast actuation of air flow from a controller in response to signals received from the sensors.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: May 13, 2003
    Assignee: Addex, Inc.
    Inventor: Robert E. Cree