发明名称 Door Apparatus and method of making door
摘要 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.
申请公布号 US5782055(A) 申请公布日期 1998.07.21
申请号 US19960755406 申请日期 1996.11.22
申请人 CRITTENDEN, JERRY G. 发明人 CRITTENDEN, JERRY G.
分类号 E06B3/70;(IPC1-7):E06B3/72;E04C2/54 主分类号 E06B3/70
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