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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
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。
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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
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。
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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
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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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
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。
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公开(公告)号：US10939785B2
公开(公告)日：2021-03-09
申请号：US16529266
申请日：2019-08-01
摘要： A transfer apparatus for receiving the chair seat of a wheelchair and supporting the chair seat in the base of a washing enclosure. The transfer apparatus has a chair support member including a chair support track section that can be positioned in the washing enclosure base, a bridge portion with a bridge track section that is movably mounted to the chair support member. The transfer apparatus includes a lock system usable to secure the bridge portion in an in-use position and engaged with the wheelchair. A first lock inhibits rotational motion of the bridge portion. The first lock includes a retractable locking member that is biased to an extended, locking position. A second lock is usable to prevent longitudinal separation of the bridge portion and the wheelchair. The first and second lock can be automatically engaged when the bridge portion is moved to the in-use position.
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公开(公告)号：US10368699B2
公开(公告)日：2019-08-06
申请号：US15465887
申请日：2017-03-22
发明人： Andrew J. Hart , Peter G. Murray
摘要： A transfer apparatus for receiving the chair seat of a wheelchair and supporting the chair seat in the base of a washing enclosure. The transfer apparatus has a chair support member including a chair support track section that can be positioned in the washing enclosure base. The transfer apparatus also has a bridge portion including a bridge track section that is movably mounted to the chair support member. The bridge portion transitions between a storage position and an in-use position. In the in-use position the bridge portion is engaged with the wheelchair and the bridge track section is aligned with the chair support track section. The chair seat can be translated from the wheelchair along the bridge track section to the chair support track section when the bridge portion is in the in-use position and engaged with the wheelchair.
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公开(公告)号：US4936287A
公开(公告)日：1990-06-26
申请号：US338003
申请日：1989-04-14
申请人： Andrew J. Hart , John Young
发明人： Andrew J. Hart , John Young
CPC分类号： A62C2/14 , A62C2/242 , F16K17/383 , Y10T137/1812 , Y10T137/1819
摘要： A fire damper or the like having butterfly-type gas flow control blades includes a heat responsive blade release assembly that incorporates a standard fusible link accessible from externally of the assembly. The fusible link holds together pivoted side plates of a housing from which extends a pair of arms normally holding the blades in their open positions. When the link melts, the side plates move apart, allowing the arms to open and release the blades. The assembly is also adjustable to vary the extent to which the blades open.
摘要翻译： 具有蝶式气体流量控制叶片的防火阀等包括热响应刀片释放组件，其包括可从组件外部进入的标准可熔链。 可熔连接件将壳体的枢转的侧板保持在一起，一对臂通常将刀片保持在其打开位置。 当连杆熔化时，侧板移开，允许臂打开并释放叶片。 组件也是可调节的，以改变叶片打开的程度。
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公开(公告)号：US10694897B2
公开(公告)日：2020-06-30
申请号：US15465811
申请日：2017-03-22
发明人： Andrew J. Hart , Peter G. Murray
摘要： A tilting mechanism for a chair that has a seat frame, a seat and a chair back. The tilting mechanism has a track path along which the seat tracks between an upright sitting position and a reclined position. The chair back tracks concurrently between a first position when the seat is in the upright sitting position and a second inclined position when the seat is in the reclined position. The inclination of the chair back increases at a greater rate than the inclination of the seat as the seat moves between the upright sitting position and the reclined position.
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公开(公告)号：US20140134359A1
公开(公告)日：2014-05-15
申请号：US13677743
申请日：2012-11-15
IPC分类号： E04F11/18
CPC分类号： E04F11/1808 , A47K17/022 , A61G7/0507 , Y10T428/13 , Y10T428/24355
摘要： A safety grip system comprises first and second safety grips that are mountable to a support structure. Each safety grip comprises a main body sized to overlie at least a portion of the support structure and have a textured exterior surface. The first and second safety grips are interlockable such that when the first safety grip is non-rotatably mounted to the support structure, the second safety grip is also non-rotatably mounted to the support structure.
摘要翻译： 安全把手系统包括可安装到支撑结构的第一和第二安全把手。 每个安全夹具包括主体，其尺寸设置成覆盖至少一部分支撑结构并具有纹理的外表面。 第一和第二安全把手是可互锁的，使得当第一安全把手不能旋转地安装在支撑结构上时，第二安全把手也不可旋转地安装到支撑结构上。
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公开(公告)号：US10597875B2
公开(公告)日：2020-03-24
申请号：US15677627
申请日：2017-08-15
发明人： Andrew J. Hart , Peter G. Murray
摘要： A safety grip system comprises first and second support structures wherein the second support structure extends transverse to the first support structure. The first support structure is provided with a first longitudinally extending safety grip at one end thereof. The first longitudinally extending safety grip on the end of the first support structure has an opening therethrough through which the second support structure extends, whereby the first longitudinally extending safety grip is non-rotatably secured to the first support structure. A second longitudinally extending safety grip is provided on the first support structure and has engagement members that inter-engage engagement members provide don the first longitudinally extending safety grip, whereby the second longitudinally extending safety grip is non-rotatably secured to the first support structure.
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