| 摘要 |
1386316 Diffusion pumps COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 7 Dec 1972 [7 Dec 1971] 56479/72 Heading F1E A diffusion pump has a cover 10 which supports a nitrogen cooled trap 16 and is removable to give access for removal of a baffle 9 which is cooled by thermal contact by having a plane surface 5 resting on a plane surface 6 forming part of a cooling reservoir 3 which also supplies coolant to the coil 2. A hood 22 for the deflector 21 is connected to the baffle 9. The ducting 20 is also vertically removable.
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