公开(公告)号：US20010055947A1

公开(公告)日：2001-12-27

申请号：US09919437

申请日：2001-07-31

Inventor： Francis J. McCabe

IPC: A62C002/12

CPC classification number: A62C2/247 ,  A62C2/14 ,  Y10T74/18696 ,  Y10T137/1819 ,  Y10T137/8242 ,  Y10T137/87475

Abstract: A damper assembly in which the position of the damper blades is controlled by an electric powered actuator. The powered actuator rotates a threaded lead screw shaft attached to an operator means attached to the damper blades of the damper, which causes the damper blades to open and close or be positioned somewhere in-between. The actuator can be controlled by sensors in a remote location. The actuator allows the damper to be modulated to set up pressure differentials and to be closed well in advance of oncoming smoke, fire, or other detected toxic fumes. There are a variety of nuts and gear arrangements coacting with the lead screw to drive the operator.

Abstract translation: 阻尼器组件，其中阻尼器叶片的位置由电动致动器控制。 动力执行器旋转螺纹导螺杆轴，其附接到连接到阻尼器的阻尼器叶片的操作器装置，其使阻尼器叶片打开和关闭或定位在其间的某处。 致动器可以由远程位置的传感器控制。 致动器允许阻尼器调节以设定压力差，并在迎面而来的烟雾，火焰或其他检测到的有毒烟雾之前被良好地关闭。 各种螺母和齿轮装置与导螺杆共同作用以驱动操作者。

公开(公告)号：US20040121722A1

公开(公告)日：2004-06-24

申请号：US10733971

申请日：2003-12-11

Inventor： Eugene J. Heil ,  Terrance Horvat

IPC: A62C002/12

CPC classification number: F24F13/1426 ,  A62C2/14 ,  F16K17/386 ,  F24F11/35 ,  F24F2013/146 ,  Y10T137/1812

Abstract: A damper assembly is provided having at least one damper blade that operates in a normally open position. A fusible link is connected to the damper blade to maintain the damper blade in the open position against a biasing force tending to close the damper blade. The fusible link fails upon an occurrence of a predetermined condition. A damper mechanism is provided including a locking mechanism linked to the damper blade that resists opening of the damper blade when the blade has closed due to failure of the fusible link.

Abstract translation: 设有阻尼器组件，其具有在常开位置操作的至少一个阻尼叶片。 可变连接件连接到阻尼器叶片上，以将阻尼器叶片保持在打开位置，以抵抗倾向于关闭阻尼叶片的偏压力。 在发生预定条件时，熔断链路失效。 提供一种阻尼机构，其包括连接到阻尼器叶片的锁定机构，当由于可熔连接件的故障而使叶片关闭时，阻尼叶片的开口抵抗阻尼器叶片的打开。

公开(公告)号：US20040058639A1

公开(公告)日：2004-03-25

申请号：US10433309

申请日：2003-10-10

Inventor： Richard Perrin

IPC: A62C002/12 ,  A62C002/18

CPC classification number: A62C2/242 ,  A62C2/12 ,  F24F11/35 ,  F24F13/1406 ,  F24F2013/146

Abstract: A fire damper in an air duct (2) is formed by a flap (12) which in its closed position bears on a flange (6) which extends inward from the duct wall, to form a seal. The flap (12) is biased to the closed position and held open by a cable (24) which is gripped by a releasable mechanism, such as a ball clutch. The release is triggered by a fusible cartridge (34) which extends into the duct (2).

Abstract translation: 空气管道（2）中的防火阀由挡板（12）形成，挡板（12）在其关闭位置承载在从管道壁向内延伸的凸缘（6）上，以形成密封。 挡板（12）被偏压到关闭位置并且被电缆（24）保持打开，该电缆被诸如球形离合器之类的可释放机构夹住。 释放由可延伸到管道（2）中的可熔药筒（34）触发。