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热词
    • 72. 发明授权
    • Internal back vent system
    • 内部后排系统
    • US4073018A
    • 1978-02-14
    • US563482
    • 1975-03-31
    • Gordon W. Arrowood
    • Gordon W. Arrowood
    • E03C1/01E03C1/122E03D9/04F16L41/00
    • E03C1/1225E03C1/01E03C1/122Y10T137/6969Y10T137/86332
    • An internal back vent system which includes a single vertical stack divided by concentric vertically disposed vent and drain pipes into a main central drain or waste passageway surrounded by an annular vent passageway. Adjacent the floors to be serviced, the vertical stack is provided with manifold assemblies which interconnect the ends of branch waste pipes to the main drain passageway while venting each branch pipe to the vent passageway. The manifold includes a plurality of radially extending connector pipes all communicating with the main drain passageway. These outwardly extending connector pipes are respectively connected to the branch waste pipes which form the drains of the various fixtures within the building. At each level, a corresponding number of upstanding, relatively short, vent pipes are disposed, circumferentially spaced, in the annular vent passageway and are respectively connected by their lower ends to the connector pipes. Couplings having flexible gaskets surrounded by shields join the various butt connected pipes. A funnel shaped discharge member connects both the vent passageway and the drain passageway to the main drain.
    • 内部后排排气系统,其包括由垂直排列的同心排放管排出的单个垂直堆叠,分成由环形通风通道围绕的主要中央排水或废物通道。 相邻的地板要维修,垂直堆叠设有歧管组件,其将分支废水管道的两端连接到主排水通道,同时将每个分支管道排放到通风通道。 歧管包括多个径向延伸的连接管,其全部与主排水通道连通。 这些向外延伸的连接管分别连接到形成建筑物内的各种固定装置的排水沟的分支废水管道。 在每一级,相应数量的直立,相对较短的通气管在环形排气通道中周向隔开设置并分别通过其下端连接到连接管。 具有由屏蔽件包围的柔性衬垫的联接器连接各种对接连接的管道。 漏斗形排出构件将排气通道和排放通道两者连接到主排水管。