E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
E06B 5/16 (2006.01) E05B 65/10 (2006.01)
Patent
CA 2065058
A fire-retardant pivoted door assembly with fire activated latching members includes a metal door frame having jambs and a header in which a fire-retardant door is mounted by a hinge assembly with a lower temperature resistance than the door and frame. Fire actuated latch bolt assemblies in the door are spaced vertically along the hinge side of the door, and include a housing providing an elongated cavity opening at the edge of the door. A latch bolt is slidably seated in the cavity and is biased towards the opening of the cavity. A fusible closure extends across the opening of the cavity and retains the latch bolt against the biasing pressure, and the hinge jamb has a spaced recess formed therein to receive the latch bolt upon melting of the fusible closure.
Marks & Clerk
The Stanley Works
LandOfFree
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