Cryogenic fluid transfer line

Details Cryogenic fluid transfer line Cryogenic fluid transfer line

1979-08-08

1980-11-18

Capossela, Ronald C.

Refrigeration

Low pressure cold trap process and apparatus

138112, 138113, F17C 702

Patent

active

042338166

ABSTRACT:
A cryogenic fluid transfer line is provided which comprises an interior conduit for passage therethrough of cryogenic fluid, an exterior conduit concentrically spaced about the interior conduit and defining the exterior of the fluid transfer line, an annular heat transfer shield generally concentric with and interjacent to the interior and exterior conduits and including at least one longitudinally extending resilient arcuate member with a longitudinally extending generally arcuate hooking edge, at least one longitudinally extending resilient arcuate member with a longitudinally extending generally arcuate catching edge, where the hooking and catching edge members are interlockingly engageable with each other when the member including the hooking edge is flexed to a smaller arcuate radius, positioned with its hooking edge inboard of the catching edge and then permitted to relax, each set of engaged hooking and catching edges defining a hollow generally cylindrical nest having a substantially closed curved surface with each nest extending longitudinally substantially the length of the shield, with the shield further including longitudinally extending heat transfer conduits resident within each nest. Radiation shields are provided between the annular heat transfer shield and the interior and exterior conduits.

REFERENCES:
patent: 1891740 (1932-12-01), Westerman
patent: 3055399 (1962-09-01), Bush et al.
patent: 3459234 (1969-08-01), Richter et al.
patent: 3466886 (1969-09-01), Doose et al.
patent: 3686422 (1972-08-01), Doose
patent: 3904394 (1975-09-01), Prast et al.
patent: 3986341 (1976-10-01), DeHaan
patent: 3992169 (1976-11-01), Loudon
patent: 4036618 (1977-07-01), Leonard et al.

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