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公开(公告)号：US08359803B2
公开(公告)日：2013-01-29
申请号：US13109286
申请日：2011-05-17
摘要： An elongated grid runner, and its manufacture, comprising a pair of overlying metal strips roll-formed together into a shape suitable for use in a rectangular grid to support ceiling panels, one of said strips serving as a visible cap for concealing the other strip forming the main body of the grid runner when the grid member is employed in a completed ceiling, the strips being lanced at each end of the grid runner to lock the cap strip on the main body strip whereby when the overlying strips are simultaneously cut to a finish length prior to finish roll-forming, the ends of the strip are maintained in substantially overlying end-to-end registration where the cap is visible in a finished ceiling.
摘要翻译： 一种细长的栅格流道及其制造，包括一对上覆的金属条，其一起成形为适合用于矩形网格以支撑天花板的形状，所述条中的一个用作可见的盖，用于隐藏另一条形成 当网格构件用于完成的天花板时，格栅浇道的主体，条带在网格浇道的每个端部处被切开，以将盖带锁定在主体条上，由此当覆盖的条被同时切割成完成 在成品滚压成形之前的长度，条带的端部保持在基本上重叠的端对端配准中，其中盖在完成的天花板中可见。
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公开(公告)号：US20120291388A1
公开(公告)日：2012-11-22
申请号：US13109286
申请日：2011-05-17
摘要： An elongated grid runner, and its manufacture, comprising a pair of overlying metal strips roll-formed together into a shape suitable for use in a rectangular grid to support ceiling panels, one of said strips serving as a visible cap for concealing the other strip forming the main body of the grid runner when the grid member is employed in a completed ceiling, the strips being lanced at each end of the grid runner to lock the cap strip on the main body strip whereby when the overlying strips are simultaneously cut to a finish length prior to finish roll-forming, the ends of the strip are maintained in substantially overlying end-to-end registration where the cap is visible in a finished ceiling.
摘要翻译： 一种细长的栅格流道及其制造，包括一对上覆的金属条，其一起成形为适合用于矩形网格以支撑天花板的形状，所述条中的一个用作可见的盖，用于隐藏另一条形成 当网格构件用于完成的天花板时，格栅浇道的主体，条带在网格浇道的每个端部处被切开，以将盖带锁定在主体条上，由此当覆盖的条被同时切割成完成 在成品滚压成形之前的长度，条带的端部保持在基本上重叠的端对端配准中，其中盖在完成的天花板中可见。
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公开(公告)号：US08701365B2
公开(公告)日：2014-04-22
申请号：US12844342
申请日：2010-07-27
IPC分类号： E04B2/00
CPC分类号： E04F13/06 , E04F13/068 , E04F2013/063
摘要： A corner bead for finishing a wallboard corner joint is provided, including a plastic body including a first flange and a second flange, each flange having a rib edge and an opposite free edge. The respective rib edges are joined to form a corner rib defining an angle. A web of face paper covers at least a portion of the body.
摘要翻译： 提供了一种用于完成墙板角接头的角珠，其包括包括第一凸缘和第二凸缘的塑料体，每个凸缘具有肋边缘和相对的自由边缘。 相应的肋边缘被连接以形成限定角度的角肋。 面纸网覆盖身体的至少一部分。
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公开(公告)号：US4633229A
公开(公告)日：1986-12-30
申请号：US397221
申请日：1982-07-12
申请人： Joel G. Iacono , Ronald J. Koval
发明人： Joel G. Iacono , Ronald J. Koval
CPC分类号： G10K11/025
摘要： Electronic outdoor warning siren systems which include a plurality of speakers arranged in one or more vertically spaced circular arrays of circumferentially spaced vertically oriented speakers to achieve substantially uniform coverage in all radial directions in a horizontal plane, and utilizing frequency variations in adjacent speakers in a given horizontal plane to minimize interference between sound signals from adjacent speakers thereby permitting closer spacing of speakers than would otherwise be feasible and providing uniform omni-directional sound propagation. The same frequency variations are also employed with a plurality of speakers oriented in the same direction and rotated through 360.degree. to accomplish the same result of minimal interference and more uniform sound propagation.
摘要翻译： 电子室外警报警报系统，其包括布置在一个或多个垂直间隔开的周向间隔开的垂直定向扬声器的圆形阵列中的多个扬声器，以在水平面中在所有径向方向上实现基本均匀的覆盖，并且利用给定的相邻扬声器中的频率变化 水平面，以使来自相邻扬声器的声音信号之间的干扰最小化，从而允许扬声器的距离比其他情况更为可行，并提供均匀的全向声音传播。 同样的频率变化也与多个扬声器相同方向并且旋转360度，以实现最小干扰和更均匀的声音传播的相同结果。
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