Patent ID: 11946314
Assignee: GOLDENSE OPENINGS SOLUTIONS LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A system for modifying a fire door clearance, comprising:
a non-flammable metal strip configured to wrap around an edge of a door; and
an intumescent material applied to an inner portion of the non-flammable metal strip such that the intumescent material is sandwiched between the non-flammable metal strip and the edge of the door wherein the non-flammable metal strip is fastened to the door with an adhesive and a mechanical fastener in the door that engages a slot in the non-flammable metal strip,
wherein the non-flammable metal strip slides away from the edge of the door in response to an expansion of the intumescent material to seal a clearance between the edge of the door and an adjacent structure,
wherein the mechanical fastener in the door engaging the slot in the non-flammable metal strip guides the non-flammable metal strip such that the non-flammable metal strip slides away from the edge of the door in a first predetermined direction Rwhenlland is prevented from sliding in a second predetermined direction in response to the expansion of the intumescent material.