PRESSURE RELIEF PANEL HOLD OPEN APPARATUS AND METHOD

摘要

TITLE: PRESSURE RELIEF PANEL HOLD OPEN APPARATUS AND METHOD A pressure relief panel assembly for protecting a building against over-pressure caused by explosion. The assembly has a panel pivotally connected to a frame and held by a calibrated magnet and striker set which releases when a predetermined over-pressure occurs. A linkage of two arms limits the extent to which the panel can blow open, and a spring mounted on one of the arms catches the other arm when the panel has blown open, preventing the panels from re-closing and thereby preventing implosion damage to the building. Alternatively, the panel, after opening, may be held partly open by a stop bar which pivots downwardly so that its end engages the magnet face, thus holding the panel partly open to prevent implosion damage to the building after the explosion.