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71. 发明授权

US4474210A Surge control weir structure for sewage treatment plants and the like 失效
标题翻译：污水处理厂的浪涌控制堰结构等
公开(公告)号：US4474210A
公开(公告)日：1984-10-02
申请号：US572131
申请日：1984-01-19
申请人： Lawrence A. Schmid
发明人： Lawrence A. Schmid
IPC分类号： E03F5/10 , E03F5/12 , E03F7/02 , E02B7/26
CPC分类号： E03F5/12 , E03F5/101 , E03F5/107 , E03F7/02 , Y10T137/86204 , Y10T137/86212 , Y10T137/86228
摘要： A simplified, energy efficient, low cost liquid flow controlling weir apparatus is provided for "in tank" flow equalization and surge control. The apparatus is especially adapted for use in waste water treatment plants at tank outlets, and includes first and second, opposed, spaced apart upright weirs; the inboard first weir adjacent tank water is of lesser height than that of the outboard weir, and the latter is provided with one or more apertures therethrough at a level below the upper margin of the first weir. When water within the tank rises past and overflows the inboard weir plate, liquid flow is controlled by the outboard weir plate openings, water is rapidly backed up in the tank as storage, and tank discharge is maintained at a relatively uniform rate until the tank storage capacity is reached. The outboard weir plate prevents tank overflow, and is advantageously set at a height for overflow at 125-135 percent of design flow through the system.
摘要翻译：提供了一种简单，节能，低成本的液体流量控制堰装置，用于“在罐”流量均衡和浪涌控制。该设备特别适用于在罐出口处的废水处理厂，并且包括第一和第二相对间隔开的直立堰; 内侧第一堰相邻罐水的高度小于外侧堰的高度，后者在第一堰的上边缘下方具有穿过其中的一个或多个孔。当水箱内的水通过并溢出内侧堰板时，液体流量由外侧堰板开口控制，水在储罐中迅速备用，作为储存装置，罐体排放量保持相对均匀的速率，直到储罐储存达到容量。外侧堰板防止油箱溢流，有利地设置在通过系统的设计流量的125-135％溢出的高度。

72. 发明授权

US4259983A Cleanout fitting with lockable and removable check valve 失效
标题翻译：具有可锁定和可拆卸止回阀的清洁配件
公开(公告)号：US4259983A
公开(公告)日：1981-04-07
申请号：US967852
申请日：1978-12-08
申请人： Bernhard Kessel
发明人： Bernhard Kessel
IPC分类号： E03F7/02 , E03F9/00 , F16K15/00
CPC分类号： E03F9/00 , E03F7/02 , Y10T137/7838 , Y10T137/79
摘要： A cleanout fitting has a tubular body adapted to be connected between a pair of conduits and having an upwardly open well defined between the upstream and downstream end of the body. This tubular body is formed internally with a downward upstream step and a downward downstream step. At its upstream step the body is also formed with a downwardly U-shaped abutment forming a downstream-facing upstream insert seat. At its downstream step the body has a plurality of ridges defining an upwardly open U-shaped seat. Inserts, normally check valves, have rings receivable in these seats and each have a valve flap engageable with the respective ring. A cover is sealingly engageable over the well, and also serves to hold at least the downstream insert in place in the respective seat.
摘要翻译：清洁配件具有适于连接在一对管道之间并具有限定在主体的上游和下游端之间的向上开口的管状体。该管体在内部形成有向下的上游步骤和向下游的下游步骤。在其上游步骤中，主体还形成有形成向下游的上游插入座的向下U形的邻接。在其下游步骤中，主体具有限定向上开口的U形座的多个脊。插入件（通常为止回阀）在这些座中具有可接收的环，并且每个都具有可与相应环接合的阀瓣。盖可密封地接合在井上，并且还用于至少将下游插入物保持在相应座中的适当位置。

73. 发明授权

US3431945A Plumber's pneumatic plug 失效
标题翻译： PLUMBER的气动插头
公开(公告)号：US3431945A
公开(公告)日：1969-03-11
申请号：US3431945D
申请日：1966-05-23
申请人： HUBERT A ROBILLARD
发明人： ROBILLARD HUBERT A
IPC分类号： E03F7/02 , F16L55/12
CPC分类号： E03F7/02

74. 发明授权

US385292A Foueths to dudley j 失效
公开(公告)号：US385292A
公开(公告)日：1888-06-26
申请号：US385292D
IPC分类号： E03F3/04 , E03F7/02
CPC分类号： E03F7/02 , E03F3/04 , Y10T137/7504 , Y10T137/7903 , Y10T137/8376

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