B - Operations – Transporting – 01 – L
Patent
B - Operations, Transporting
01
L
B01L 3/14 (2006.01) A01N 1/02 (2006.01) F25D 25/00 (2006.01)
Patent
CA 2314658
A seat member is provided between the top edge of a cryogenic tube and its cap, the latter being modified to display a central opening. The latter is covered by a flexible portion of the seal member so that as the pressure conditions vary inside the tube under cryogenic temperatures, the flexible portion of the seal member is deformed thus providing a visual indication of the changes inside the tube.
Goudreau Gage Dubuc
Lafond Andre
LandOfFree
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