초록 ▼

Door apparatus includes a perimeter frame and material inwardly from the perimeter frame has been removed from both sides of the door asymmetrically to allow the inner portion of the door to warp in response to temperature and/or humidity conditions without affecting the planar nature of the door pe

Door apparatus includes a perimeter frame and material inwardly from the perimeter frame has been removed from both sides of the door asymmetrically to allow the inner portion of the door to warp in response to temperature and/or humidity conditions without affecting the planar nature of the door perimeter frame. The perimeter frame remains in its original, planar, configuration so as to remain true regardless of the warping of the interior portion of the door due to temperature and/or humidity. The method of making the door includes the asymmetrical removal of the material from the inner portion of the door inwardly from the perimeter door frame on both sides of the door to provide relatively thin webs between relatively thick door portions.

대표청구항 ▼

[ What I claim is:] [1.] Door apparatus comprising in combination:a door, including a front side, a back side, and a perimeter frame;a grooved first pattern on the front side;a grooved second pattern on the back side asymmetrical with the first pattern to define a plurality of webs between the front

[ What I claim is:] [1.] Door apparatus comprising in combination:a door, including a front side, a back side, and a perimeter frame;a grooved first pattern on the front side;a grooved second pattern on the back side asymmetrical with the first pattern to define a plurality of webs between the front and back sides, whereby the webs allow the door to expand and contract generally perpendicular to the perimeter frame in response to temperature and/or humidity and the perimeter frame remains generally true.