Abstract: An improved assembly structure of a door leaf with glass, with a halving structure of two halving injected frames having the same structure with glass, includes, at the reverse side of the halving injected frames with glass having a male tenon reinforcing rib with a plurality of female tenons mutually in symmetrical arrangement. That is, both are disposed correspondingly with each other top-to-bottom and left-to-right. Therefore, two identical halving injected frames (having the same structure) are capably halved each other by correspondingly relative male tenons inserted into relative female respectively. The structure is without need of joint members to quickly assemble a door leaf with glass when the two identical halving injected frames are held on a door leaf to further fix a multiple-layer glass therein. This saves assembling time and decreases cost.

Abstract: Structural members for doors and the like can be manufactured from plastic foamed composites containing wood flour by the steps of (1) dry mixing a blend of powders including PVC powder, wood flour, powdered thermal stabilizers, powdered fowning agent and a powdered gelatinization agent, (2) adding the mixed powder to a thermal stirring mixer to obtain a homogeneous dispersion of the several powders (3) transferring the homogeneous dispersion of powders to a cold stirring mixer and stirring at speeds sufficient to avoid agglomeration of the homogeneous dispersion of the several powders and (4) placing the non-agglomerated homogeneous dispersion of the several powders in a feeding hopper of an extrusion machine and extruding shapes for the desired components. The vacuum venting of the extrusion machine can be controlled to achieve components with more desirable surface features. Lubricants can be added to the homogeneous dispersions of the several powders to aid in the extrusion process.

Abstract: 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 appearanc

Abstract: A fireproof door assembly structure comprising: two molded door panels of compression molded thin skins overlaid with each other to form door with a hollow core; a rectangular frame sealing on said door panels operable to said frame of the opposing panel when said panels are overlaid with one another; a reinforcing part located respectively between said panels in the area where the handle will be attached with said door panels; and a fireproof material core formed in place between said door panels to produce a real wood like fireproof door.

Abstract: A press-molded door including a reinforcing structure having a plurality of hollow vertical stiffeners joined by a horizontal web, two of the stiffeners arranged on opposite edges of the reinforcing structure with a groove formed in an edge face thereof, a T-shaped stile arranged in each edge stiffener with a tongue that fits into the groove, and front and back panels arranged on opposite sides of the reinforcing structure.

Abstract: A press-molded door including a reinforcing structure having a plurality of hollow vertical stiffeners joined by a horizontal web, two of the stiffeners arranged on opposite edges of the reinforcing structure with a groove formed in an edge face thereof, a T-shaped stile arranged in each edge stiffener with a tongue that fits into the groove, and front and back panels arranged on opposite sides of the reinforcing structure.

Abstract: Structural members for doors and the like can be manufactured from plastic foamed composites containing wood flour by the steps of (1) dry mixing a blend of powders including PVC powder, wood flour, powdered thermal stabilizers, powdered foaming agent and a powdered gelatinization agent, (2) adding the mixed powder to a thermal stirring mixer to obtain a homogeneous dispersion of the several powders (3) transferring the homogeneous dispersion of powders to a cold stirring mixer and stirring at speeds sufficient to avoid agglomeration of the homogeneous dispersion of the several powders and (4) placing the non-agglomerated homogeneous dispersion of the several powders in a feeding hopper of an extrusion machine and extruding shapes for the desired components. The vacuum venting of the extrusion machine can be controlled to achieve components with more desirable surface features. Lubricants can be added to the homogeneous dispersions of the several powders to aid in the extrusion process.

Abstract: The present invention relates to a refined assembly structure of hubbed door leaf installed with glass, which comprises a first door skin with an opening, a second door skin with an opening, a top lacing material, a bottom lacing material, a left lacing material, a right lacing material, a handle reinforcement member and the ejected frame with multiplayer glass hold-down. The door skin with opening can be manufactured to be various shapes such as square, rectangular, circle, ellipse, and semicircle depending on different mold. When assembled, the lacing materials are mounted to the edges of the first door skin by the adhesive. The left and the right lacing materials are position-bonded, by ribs, to the flush-sided door skin. The top and the bottom lacing materials are positioned through the milled notches at the top and the bottom ends of the left and the right lacing materials. A reinforcement member is disposed at the handle position to enhance the mechanical strength of the handle while locked.

Abstract: Structural members for doors and the like can be manufactured from plastic foamed composites containing wood flour by the steps of (1) dry mixing a blend of powders including PVC powder, wood flour, powdered thermal stabilizers, powdered foaming agent and a powdered gelatinization agent, (2) adding the mixed powder to a thermal stirring mixer to obtain a homogeneous dispersion of the several powders (3) transferring the homogeneous dispersion of powders to a cold stirring mixer and stirring at speeds sufficient to avoid agglomeration of the homogeneous dispersion of the several powders and (4) placing the non-agglomerated homogeneous dispersion of the several powders in a feeding hopper of an extrusion machine and extruding shapes for the desired components. The vacuum venting of the extrusion machine can be controlled to achieve components with more desirable surface features. Lubricants can be added to the homogeneous dispersions of the several powders to aid in the extrusion process.

Abstract: Structural members for doors and the like can be manufactured from plastic foamed composites containing wood flour by the steps of (1) dry mixing a blend of powders including PVC powder, wood flour, powdered thermal stabilizers, powdered foaming agent and a powdered gelatinization agent, (2) adding the mixed powder to a thermal stirring mixer to obtain a homogeneous dispersion of the several powders (3) transferring the homogeneous dispersion of powders to a cold stirring mixer and stirring at speeds sufficient to avoid agglomeration of the homogeneous dispersion of the several powders and (4) placing the non-agglomerated homogeneous dispersion of the several powders in a feeding hopper of an extrusion machine and extruding shapes for the desired components. The vacuum venting of the extrusion machine can be controlled to achieve components with more desirable surface features. Lubricants can be added to the homogeneous dispersions of the several powders to aid in the extrusion process.

Abstract: A press-molded door with an improvement for its interior reinforced material and stile structure comprises an interior reinforced material, handle's reinforced material, two top and bottom stiles, and two left and right stiles. The two left and right stiles are inserted with each other by its flexible-rigid co-extrusion convex structure and the concave structure of interior reinforced material, and are then connected with two top and bottom stiles forming a closed space and an imitation wood grain door.

Abstract: In a door constructed of spaced apart compression molded skins reinforced with fiber glass with the core between the skins filled with foam to construct the door, an improved skin for such doors is constructed by adding specific pigments to the raw materials for such skins before compression molding occurs to achieve a surface which is superior in appearance to the skins of such doors which are painted and/or stained after such skins are compression molded and converted into a door. The specific pigments employed are titanium oxide ?TiO.sub.2 !, ferric oxide ?Fe.sub.2 O.sub.3 !, chromium oxide ?Cr.sub.2 O.sub.3 !, and carbon black and are blended in different percentages to achieve different colors without loss of the integrity of the skin.

Abstract: A synthetic door casement is composed of multiple panels of L-shaped compression molded skin panels, that can be embossed with a graining pattern on their outer surfaces, which are joined with batten means on their inner surfaces to form a pair of opposed rectangular casement skins which casement skins are then joined on opposite sides of an outer frame surrounding an inner frame to form a hollow rectangular casement which is then filled with a plastic foam, such as polyurethane foam, with the inner frame having an external recess to receive a glass pane along with cooperative retention moldings to hold the pane in place in the recess of the inner frame once the pane is inserted therein.

Abstract: A door according to this invention is formed from two rectangular compression molded skins with each skin having inside surface and an outside surface and on its inside surface a plurality of projecting, parallel ribs along at least two of its edges, a hinge support having a plurality of grooves on its opposite sides with the grooves operable to interlock with the ribs of the skins along one side of the door when the skins are assembled with this support and an accessory support having a plurality of grooves on its opposite sides operable to interlock the ribs of the skins along the other side of the door when the skins are assembled therewith whereby no frame is required for the door when a foamed in place polyurethane core is formed between the skins. The door used interlocking members at its side and top edges and a preformed bottom panel or insert.