F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
277/71
F16J 15/10 (2006.01)
Patent
CA 1086793
ABSTRACT OF THE DISCLOSURE Method for preventing the escape of liquid nitrogen and nitrogen gas from an apparatus for treating materials with high energy ionizing radia- tion while the materials are being maintained at temperatures below about -40°C. with liquid nitrogen comprising using a packing made of filaments of poly (p-phenylene terephthalamide) at the joints in the liquid nitrogen conduit.
297946
Brynjolfsson Ari
Laible Roy C.
Allen John A.
United States (government Of The) Of America Represented By The
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