| 摘要 |
FIELD: transport, package. ^ SUBSTANCE: proposed chamber comprises case 1, cover 2, evacuator, deevacuator 4 and starter 5. Affecting the starter detaches evacuated chamber cover. Note here that said starter actuates deevacuator to equalises inner and outer pressures. Said deevacuator is made up of check valve 4. ^ EFFECT: equalising inner and outer pressures, simultaneous chamber venting and opening. ^ 11 cl, 8 dwg |
