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5734results about "Door leaves" patented technology

Fire retardant panel door and door frame having intumescent materials therein

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.
Owner:ATRISTIC DOORS & WINDOWS

Opposite inserted structure for injecting frame of door leaf with glass

A door assembly structure with glass according to this invention is formed from one door leaf, which is rectangular shape with an opening for glass installed therein; two identical glass injected-frames, which is provided with inside frame and outside frame which is at a position bevel to inside frame, and which outside frame has a flat surface inside on which has a recess, and at inside frame an inner rib with flat surface is formed along its inner edge and a middle rib with flat surface is also formed at a distance parallel to inner rib so that a recess formed in between inner rib and middle rib and a space formed beside middle rib, wherein at a certain distance to middle rib several tenons and several slot mortises in interval with symmetrical position is formed so that by tenon and slot mortise joint one of two identical glass injected-frames may be jointed to the other which is turned in half circle; and at least one piece of glass, which size is smaller than opening of said door leaf and which appearance is similar to that of said opening of said door leaf.Without using any general screws to assemble a door assembly structure with glass of this invention but by use of tenon and slot mortise joint. This invention is completely assembled as a whole door assembly structure with glass much more easily than before does and capably reduce cost without wasting working time.
Owner:NANYA PLASTICS CORP
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