System for reducing warping in solid wood doors
AssigneeLes Portes Alain Bourassa Inc.
InventorsMathieu Bourassa, Alain Bourassa
Life of this patent
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Abstract
The invention described relates to the manufacturing of solid wood doors and consists in the insertion of steel reinforcing bars in the frames of the door to increase its rigidity. By increasing the rigidity of the door, the effect of possible warping in the door is diminished. In addition to this, alloying the steel, which possesses an elasticity modulus that is around ten times superior to that of wood, we achieve significantly higher rigidity for the piece of solid wood and this, by adding very little steel. The arrangement and the geometry of the reinforcing bars permit the conservation of traditional manufacturing techniques.
Claims20
A system for reducing warping in a door, the door comprising:
- two vertical stiles running a full height of the door and defining vertical edges of the door with a first stile comprising attaching elements for hingedly connecting the door to a door frame and a second stile, opposite to the first stile, optionally having a handle;
- and
- a top and bottom horizontal rail connecting the two vertical stiles and defining a top and a bottom edge of the door;
- the stiles and rails delimiting a panel of the door, the door having an external and an interior surface;
- the system comprising at least one pair of longitudinal and parallel reinforcing bars embedded along almost a total length of the second stile of the door, the reinforcing bars being adjacent to the external or interior surfaces of the door in a way that the reinforcing bars match the external or interior surfaces of the door;
- the external or interior surface of the door being laminated for hiding the reinforcing bars.
A system for reducing warping in a door, the door comprising:
- two vertical stiles running a full height of the door and defining vertical edges of the door with a first stile comprising attaching elements for hingedly connecting the door to a door frame and a second stile, opposite to the first stile, optionally having a handle;
- and
- a top and bottom horizontal rail connecting the two vertical stiles and defining a top and a bottom edge of the door;
- the stiles and rails delimiting a panel of the door, the door having an external and an interior surface;
- the system comprising at least one pair of longitudinal and parallel reinforcing bars embedded along almost a total length of the second stile of the door, one of the reinforcing bars being adjacent to the external surface of the door and the other of the reinforcing bars being adjacent to the interior surface of the door, the reinforcing bars matching said surfaces of the door;
- said surfaces of the door being laminated for hiding the reinforcing bars.
Dependencies are inferred from the claim text.