| 摘要 |
800,204. Storing liquefied gases. UNION CARBIDE CORPORATION. Dec. 12, 1956 [Jan. 5, 1956], No. 38007/56. Class 8(2). [Also in Group XIII] Traces of moisture are absorbed from the vacuum or powder-invacuum insulation 14, between a liquid oxygen container 13 and an outer shell 12 by a molecular sieve 16 of natural or synthetic zeolite having a pore size of at least five angstrom units. Calcium zeolite " A " or sodium zeolite " X " is located within a blister 16 beneath the container 13 and having an aperture covered by a glass wool filter 21 through which the traces of moisture pass to the absorbent. Specifications 777,232 and 777,233, [both in Group III] are referred to.
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