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公开(公告)号：US06418954B1
公开(公告)日：2002-07-16
申请号：US09836748
申请日：2001-04-17
IPC分类号： G05D1113
CPC分类号： G05D11/132 , Y10T137/0363 , Y10T137/2529 , Y10T137/2531 , Y10T137/2657
摘要： A system for dividing a single flow of gas into two or more secondary flows of known, precise values, without requiring a high upstream pressure. The system includes an inlet for receiving the single gas flow, and first and second flow lines connected to the inlet. A mass flow meter measures gas flow through the first line and provides a signal indicative of the measured flow rate. A restrictor restricts gas flow through the first line to a desired flow rate, and has a smallest cross-sectional flow area selected to provide an upstream pressure high enough to allow the mass flow meter to operate properly and lower than a predetermined upper pressure limit. A mass flow controller receives the signal indicative of the measured flow rate from the mass flow meter and maintains a flow rate through the second line based on the signal.
摘要翻译： 用于将单个气体流分解成具有已知的精确值的两个或更多个二次流的系统，而不需要高的上游压力。 该系统包括用于接收单个气体流的入口以及连接到入口的第一和第二流动管线。 质量流量计测量通过第一条线路的气体流量，并提供表示测量流量的信号。 限流器将通过第一管线的气体流量限制到所需的流量，并且具有最小的横截面流动面积被选择以提供足够高的上游压力，以允许质量流量计正常运行并且低于预定的上限极限。 质量流量控制器从质量流量计接收表示测量流量的信号，并且基于该信号维持通过第二行的流量。
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公开(公告)号：US20190119964A1
公开(公告)日：2019-04-25
申请号：US16169538
申请日：2018-10-24
申请人： Paul Hau , Matthew Thomas Taylor
发明人： Paul Hau , Matthew Thomas Taylor
IPC分类号： E05C9/18 , E05F15/624 , E06B9/06 , E06B3/48
摘要： A multi-panel door or window apparatus is provided. The apparatus has at least first and second panels that are foldable relative to one another. An automatic latch arrangement is provided that automatically actuates a shootbolt to engage a track of the apparatus as the first and second panels transition towards a co-planar relationship. Methods of latching the apparatus are provided as well. The automatic latch arrangement independent of the door or window apparatus is also provided.
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