| 摘要 |
Controlled atmosphere entry/exit lock unit (10) for association with a controlled atmosphere cabinet (80), the lock unit (10) having two controlled access means (13; 30) both usually operable alternatively for sealing and communicating, one (30) relative to said cabinet (80) and the other (13) relative to outside, the lock unit further having atmosphere control means (70-78) operable for achieving internal atmosphere conditions compatible with what may be prescribed for said cabinet (80), the one access means having movable door means (30) and related powered actuation means (50; 30A, B) including for sealing relative to access with said cabinet (80).
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