Pipe joints or couplings – Connector for conduit housing electromagnetic line: – Underground
Patent
1985-03-07
1987-11-24
Scanlan, Jr., Richard J.
Pipe joints or couplings
Connector for conduit housing electromagnetic line:
Underground
285156, F16L 4100
Patent
active
047083727
ABSTRACT:
A cross piping for a header in a boiling water reactor has a main pipe coaxially connected to a center branch pipe at a cross portion. A plurality of transversely extending branch pipes also connect to this cross portion. The cross portion has a reduced diameter with respect to the main distributor pipe. In one embodiment, the cross portion is in the shape of a hemisphere having a radius equal to that of the main distributor pipe, the center of the hemispherical surface being positioned adjacent an upstream intersection of the main distributor pipe axis and an extension of the circumferential surfaces of the branch pipes. In another embodiment, the cross portion has a throttle portion which is either a flat surface or a curved surface.
REFERENCES:
patent: 408826 (1889-08-01), Conroy
patent: 784461 (1905-03-01), Williams
patent: 3392994 (1968-07-01), Moore
patent: 3690702 (1972-09-01), Moore
Aoki Tadasi
Arima Takahisa
Horikawa Yuji
Ninomiya Susumu
Hanson Douglas W.
Kabushiki Kaisha Toshiba
Scanlan, Jr. Richard J.
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