Pipe joints or couplings – With assembly means or feature – With holding means functioning only during transportation...
Patent
1991-08-02
1992-07-14
Cohan, Alan
Pipe joints or couplings
With assembly means or feature
With holding means functioning only during transportation...
285264, 285270, 285271, F16L 2704
Patent
active
051296810
ABSTRACT:
A method of rendering an existing pipeline flexible, by cutting out an intermediate portion of a pipe in a ring form, inserting a pipe joint into a cutout position, and connecting the pipe joint to the pipe. The pipe joint used in this method includes a plurality of sleeves interconnected in a fluid-tight condition to be oscillatable relative to one another. The pipe joint is inserted into the cut-out position and connected to the pipe, with the plurality of sleeves substantially fixed to one another while being interconnected in the fluid-tight condition to be oscillatable relative to one another. The sleeves are thereafter released from the fixed state.
REFERENCES:
patent: 2445580 (1948-07-01), Kasten
patent: 3332709 (1967-07-01), Kowalski
patent: 4429903 (1984-02-01), Baker
patent: 4696494 (1987-09-01), Schmitz
Fukushima Tadashi
Matsui Koichi
Yano Masatoshi
Cohan Alan
Yano Giken Co., Ltd.
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