Patents Assigned to PCI Industries
  • Dual temperature fire damper releasing system
    Patent number: 6250326
    Abstract: A mechanical dual temperature damper closing mechanism having a primary link that separates when the ambient temperature reaches approximately 74° F., closing the damper. The new mechanism provides a reliable means for reopening the damper to allow airflow for the control of smoke spread. A secondary link is engaged within the new mechanism to reopen the damper. When the ambient temperature reaches 180° F. the secondary link separates, closes the damper such that it cannot be reopened.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: June 26, 2001
    Assignee: PCI Industries
    Inventors: Randy Dean Kimball, Michael Robert Beaver, Patrick A. Cockrum