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1. 发明授权

US4333392A Fire damper 失效
标题翻译：防火阀
公开(公告)号：US4333392A
公开(公告)日：1982-06-08
申请号：US111619
申请日：1980-01-14
申请人： Michael T. Nailor , Andrew J. Hart
发明人： Michael T. Nailor , Andrew J. Hart
IPC分类号： A62C2/16 , E05F15/20
CPC分类号： A62C2/16 , F24F13/10 , F24F2011/0098
摘要： Fire dampers are disclosed for use in air ducts to arrest the flow of gases and flame through the ducts in the event of a fire. The dampers each include a frame defining a generally rectangular central opening and a plurality of blades which are normally disposed in a folded position at one side of the frame but which can be moved by spring means to an unfolded position in which they extend across the opening of the frame in the event of a fire. A fusible link means normally retains the blades in their folded position. Locking members are provided for retaining the blades in their unfolded position after they have been released by the fusible link means. In one embodiment, the locking members engage integral tabs formed on the endmost blade. In another embodiment, the endmost blade has an end portion which is deflected at an acute angle with respect to the remainder of the blade and which engages over locking brackets secured to the frame.
摘要翻译：公开了用于空气管道的防火阀，以在发生火灾时阻止气体和火焰流过管道。阻尼器各自包括限定大致矩形的中心开口的框架和通常设置在框架的一侧处的折叠位置但是可以通过弹簧装置移动到展开位置的多个叶片，其中它们延伸穿过开口在发生火灾的时候。易熔连接装置通常将刀片保持在折叠位置。提供了锁定构件，用于在刀片被可熔连接装置释放之后将其保持在展开位置。在一个实施例中，锁定构件接合形成在最末端叶片上的整体接头。在另一个实施例中，最末端的刀片具有相对于刀片的其余部分以锐角偏转并且固定在框架上的锁定支架上的端部。

2. 发明授权

US4269255A Fire damper frames 失效
标题翻译：防火框架
公开(公告)号：US4269255A
公开(公告)日：1981-05-26
申请号：US87611
申请日：1979-10-23
申请人： Michael T. Nailor , Andrew J. Hart
发明人： Michael T. Nailor , Andrew J. Hart
IPC分类号： A62C2/12 , F23L13/10
CPC分类号： A62C2/12
摘要： The disclosure relates to one piece frames for fire dampers and the like. The frames are formed from elongate sheet metal blanks each of which is folded into a centrally open, generally rectangular form. In one embodiment, ends of the blank are secured together by a central tab on one end which extends through a T-shaped slot formed at the opposite end of the blank. In another embodiment, the blank is secured in its folded form by an angle shaped end bracket and the frame is provided with at least one corner bracket forming a gusset. The blanks have inwardly directed flanges which are formed with V-shaped notches to permit folding of the blank. In one embodiment, the notches each define an angle of less than 90.degree. and portions of the flange on each side of the notch are overlapped when the blank is folded to provide for frictional engagement between the overlapped portions. In another embodiment, the notches each define an angle of 90.degree. so that the edges of the flange at opposite sides of the notch come into abutting relationship when the blank is folded.
摘要翻译：本公开涉及一种用于防火阀等的框架。框架由细长的金属板坯料形成，每个坯料坯料折叠成中心开放的大致矩形的形状。在一个实施例中，坯料的端部通过中心突片固定在一起，该中心突出部分延伸穿过形成在坯料相对端的T形槽。在另一个实施例中，坯件通过角形端托架固定成折叠形式，并且框架设置有形成角撑板的至少一个角托架。坯料具有向内的凸缘，其形成有V形凹口以允许坯件折叠。在一个实施例中，凹口各自限定小于90度的角度，并且当坯件被折叠以提供重叠部分之间的摩擦接合时，凹口的每一侧上的凸缘的部分重叠。在另一个实施例中，凹口各自限定90°的角度，使得当坯件折叠时，凹口的相对侧处的凸缘的边缘成为邻接关系。

3. 发明授权

US4763711A Fire damper 失效
标题翻译：防火阀
公开(公告)号：US4763711A
公开(公告)日：1988-08-16
申请号：US870559
申请日：1986-06-04
申请人： Andrew J. Hart , Michael T. Nailor
发明人： Andrew J. Hart , Michael T. Nailor
IPC分类号： A62C2/16 , E05F15/20
CPC分类号： A62C2/16 , Y10T16/22
摘要： A fire damper having a temperature-sensitive link assembly designed to permit ease of maintenance of the damper. In one embodiment, the link assembly includes a fusible link that extends across and holds the blades folded. At each end, the link is coupled to a bracket embracing the blades by a pivot pin and an associated latch that is manually releaseable. During maintenance of the damper, either latch can be released and the link will then swing down about the pivot pin at the opposite end of the link, permitting the damper blades to close. In normal use, the blades will also close in response to an over-temperature condition causing the fusible link to break. In an alternative embodiment, a plain non-fusible link is used and one of the latches is released by a temperature-sensitive actuator made of memory metal.
摘要翻译：具有温度敏感连杆组件的防火阻尼器，其设计成允许容易地维护阻尼器。在一个实施例中，连杆组件包括延伸跨过并保持折叠的叶片的可熔连接件。在每个端部，连杆通过枢轴销和相关联的闩锁联接到包围叶片的支架上，该闩锁可手动释放。在维护阻尼器期间，可以释放闩锁，然后连杆将在连杆的相对端处围绕枢轴销摆动，允许风门叶片关闭。在正常使用中，刀片还将响应于导致熔丝断裂的过热状况而关闭。在替代实施例中，使用普通的非熔断连接件，并且其中一个闩锁由由存储金属制成的温度敏感致动器释放。

4. 发明授权

US4723481A Air control damper assembly 失效
标题翻译：空气调节风门组件
公开(公告)号：US4723481A
公开(公告)日：1988-02-09
申请号：US71008
申请日：1987-07-08
申请人： Andrew J. Hart , Michael T. Nailor
发明人： Andrew J. Hart , Michael T. Nailor
IPC分类号： F24F13/15 , E05F15/20
CPC分类号： F24F13/15
摘要： An air control damper is provided with an actuator coupled to a shaft for operating the blades of the damper. The actuator includes an electric drive motor that turns the shaft by way of a lever that is coupled to the shaft. The lever has a pulley at an outer end and a cable extends from the drive motor around the pulley and back to a fixed point adjacent the motor. When the motor is operated, the cable is wound around the motor drive shaft, pulling the lever towards the motor and turning the shaft. The arrangement provides a mechanical advantage in transmitting the motor output force to the blade actuating shaft.
摘要翻译：空气调节阻尼器设置有联接到轴的致动器，用于操作阻尼器的叶片。致动器包括电动驱动马达，其通过联接到轴的杠杆转动轴。杠杆在外端具有滑轮，并且电缆从驱动马达围绕滑轮延伸并返回到与马达相邻的固定点。当电机运行时，电缆缠绕在电机驱动轴上，将电机拉向电机并转动轴。该装置提供了将马达输出力传递到叶片驱动轴的机械优点。

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