Plested configuration vent structure

Details Plested configuration vent structure Plested configuration vent structure

1974-06-27

1976-08-03

Queisser, Richard C.

Pipes and tubular conduits

With flow regulators and/or baffles

Restrictors

138109, F15D 100

Patent

active

039723534

ABSTRACT:
A vent structure for reliable long term operation at high temperatures is fabricated by annealing a tubing of predetermined length and size, uniformly filling a normally upper portion of the tubing with a predetermined thickness layer of fine alumina particles, flattening and doubly folding and pressing the upper portion of the tubing at predetermined pressures, annealing the formed tubing, and installing a particulate filter in the undeformed normally lower portion of the tubing. For use in venting helium generating reactor control pins located under hot molten sodium, a vent assembly including the vent structure and providing an air lock between the outer molten sodium and the vent is affixed to the upper end of each control pin.

REFERENCES:
patent: 2150439 (1939-03-01), Hamilton
patent: 2747935 (1956-05-01), Szantay
patent: 3803816 (1974-04-01), McGuire
patent: 3876403 (1975-04-01), McGuire

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