Patents Examined by Christy Syres
  • Drop-out fire vent
    Patent number: 6161348
    Abstract: A drop-out fire vent for a building has a plastic dome that softens and loses structural integrity with increasing temperature. However, the dome is prevented from dropping out by an internal trap door controlled by a fusible link that will release at a precise temperature. This allows the vent to be used in combination with sprinkler systems such as ESFR systems that require opening of the vent at a precise temperature after the sprinklers have been triggered.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: December 19, 2000
    Assignee: C/S Construction Specialties Limited
    Inventor: Richard P. Morris