Pipe joints or couplings – For branched path – T-type
Patent
1977-01-12
1978-08-15
Shedd, Wayne L.
Pipe joints or couplings
For branched path
T-type
285136, F16L 4700
Patent
active
041067967
ABSTRACT:
A connector for a low-temperature-fluid duct comprises male and female connector members which interfit and, like the duct portions to which they are connected, have respective coaxial nested pipes including a first pipe forming a central flow passage for the deep-cooled medium, a second pipe defining with the first pipe a flow passage for a mixture of liquid and gaseous phases of this medium, a third pipe defining with the second pipe an inner vacuum chamber, a fourth pipe defining with the third pipe another flow passage for the medium, usually in a gaseous state, a fifth pipe defining with the fourth pipe an outer vacuum chamber, etc. According to the invention, the vacuum chambers of each connector member are sealed at the ends of the respective pipes and overlap the interfitting parts of the respective flow passages. One of the flow-passage pipes of one member is provided a ring seal while the other pipe of the same flow passage is formed with an axially extending sealing surface or layer cooperating with the ring seal.
REFERENCES:
patent: 3137143 (1964-06-01), Jacobs et al.
patent: 3166344 (1965-01-01), Davis
patent: 3173207 (1965-03-01), Burzlaff
patent: 3988029 (1976-10-01), Gibson
patent: 4011732 (1977-03-01), Doherty et al.
Asztalos Stefan
Mayer Reinhold
Stephan Alfred
Linde Aktiengesellschaft
Ross Karl F.
Shedd Wayne L.
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