Fire retardant panel door and door frame having intumescent materials therein

Abstract

A fire retardant panel door and door frame that prevents the spread of fire through the door during a fire. The fire retardant panel door has at least one door panel and stiles and rails. The door panel includes an interior center composite section formed by a first plurality of layers of intumescent materials and a first plurality of layers of fire resistant materials disposed between and laminated to a pair of outer sections formed of wood for enclosing the interior center composite section to form a composite laminated door panel. Each of the stiles includes a first center core formed of wood enclosed by a second plurality of layers of intumescent materials and a second plurality of layers of fire resistant materials; and the second layers of intumescent and fire resistant materials are enclosed by a first applique layer formed of wood to form a composite laminated stile. Each of the rails includes a second center core formed of wood enclosed by a third plurality of layers of intumescent materials and a third plurality of layers of fire resistant materials; and the third layers of intumescent and fire resistant materials are enclosed by a second applique layer formed of wood to form a composite laminated rail. The first, second, and third plurality of layers of intumescent materials are activated to expand upon exposure to heat and/or fire to prevent the heat and/or fire from passing through at least one door panel, the stiles and the rails of the panel door during a fire for at least 90 minutes. At least one door panel is connected to the panel door by tongue and groove joints; and the tongue and groove joints have a fourth plurality of layers of intumescent materials and a fourth plurality of layers of fire resistant materials in the tongue and groove joints; and wherein the fourth plurality of layers of fire resistant materials in the tongue and groove joints are activated to expand upon exposure to heat and/or fire to seal the joints in order to prevent the heat and/or fire from passing through the panel door during a fire for at least 90 minutes.

Description

FIELD OF INVENTION [0001] The present invention relates to a fire retardant panel door and door frame, and more particularly to a fire retardant panel door and door frame that provides fire resistance using a plurality of intumescent and fire resistant barrier layers therein for preventing the spread of fire through the fire retardant panel door and door frame. BACKGROUND OF THE INVENTION [0002] A fire retardant panel door, often referred to as a “fire door,” is installed in homes, commercial buildings, and industrial plants for preventing the passage or spread of fire from one part of the building to another. In the interest of public safety, standards have been set by governmental agencies; and by municipal, county and state building code authorities and insurance companies for the installation and performance of fire doors. The standards require that the fire retardant doors be installed in wall openings and that they pass industry-wide acceptance tests. [0003] Standard test meth...

AI Technical Summary

Benefits of technology

[0023] In accordance with the present invention, there is provided a fire retardant panel door and door frame that prevents the spread of fire through the door during a fire. The fire retardant panel door has at least one door panel and stiles and rails. The door panel includes an interior center composite section formed of a first plurality of layers of intumescent materials and a first plurality of layers of fire resistant materials disposed between and connected to a pair of outer sections formed of wood for enclosing the interior center composite section to form a composite laminate door panel. Each of the stiles includes a first center core formed of wood enclosed by a second plurality of layers of intumescent materials and a second plurality of layers of fire resistant materials; and the second layers of intumescent and fire resistant materials materials are enclosed by a first applique layer formed of wood to form a composite laminate stile. Each of the rails includes a second center core formed of wood enclosed by a third plurality of layers of intumescent ...

Problems solved by technology

This prior art patent does not disclose or teach the particular door structure having the use of intumescent and fire resistant materials in the door panel, stiles, rails, door frame and door joints in order to provide for a fire retardant panel door that prevents buckling of the door during a fire, as well as prevent the spread of fire through the door and door frame for at least 90 minutes.

This prior art patent does not disclose or teach the particular door structure having the use of intumescent and fire resistant materials in the door panels, stiles, rails, door frame and door joints in order to provide for a fire retardant panel door that prevents buckling of the door during a fire, as well as prevents the spread of fire through the door and door frame for at least 90 minutes.

This prior art patent does not disclose or teach the particular door structure having the use of intumescent and fire resistant materials in the door panels, stiles, rails, door frame and door joints in order to provide for a fire retardant panel door that prevents buckling of the door during a fire for at least 90 minutes.

This prior art patent does not disclose or teach the particular door structure having the use of intumescent and fire resistant materials in the door panels, stiles, rails, door frame and doo...

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