公开(公告)号：US20040045219A1

公开(公告)日：2004-03-11

申请号：US10655984

申请日：2003-09-05

Applicant: Nystrom, Inc.

Inventor： Jalil Tlemcani ,  Michael J. Carroll ,  Patrick K. Johnson

IPC: E04C002/54 ,  E05F015/20

CPC classification number: E05F1/006 ,  E05B65/104 ,  E05F1/1091 ,  E05Y2201/41 ,  E05Y2201/50 ,  E05Y2900/612 ,  Y10S292/65 ,  Y10S292/66 ,  Y10T292/0908 ,  Y10T292/62

Abstract: A fire-resistant, aluminum, cementitious-material-free, insulation-free door adapted to prevent the spread of fire and heat passing therethrough, consists of: a door frame, a door hingedly mounted on the door frame, the door having a bottom wall, a top wall, and side walls, the bottom wall, top wall and side walls enclosing a hollow central core not containing substantial amounts of insulating material, the bottom wall having an outside surface, and the top wall having an outside surface; and a layer of intumescent material on the outside surface of the bottom wall. A heat-activated self-closing mechanism allows the weight of the door to close the door in the vent of fire, by releasing gas from a supporting gas spring.

Abstract translation: 适用于防止火和热通过的防火铝，无水泥质材料的绝缘门包括：门框，门铰链地安装在门框上，门具有底部 壁，顶壁和侧壁，底壁，顶壁和侧壁，其包围不含有大量绝缘材料的中空中心芯，底壁具有外表面，并且顶壁具有外表面; 以及在底壁的外表面上的一层膨胀材料。 热启动的自动关闭机构允许门的重量通过从支撑气体弹簧释放气体而关闭火焰通风口中的门。