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Application filed by Открытое Акционерное Общество "Вибросепаратор"filedCriticalОткрытое Акционерное Общество "Вибросепаратор"
Priority to UAU201111363UpriorityCriticalpatent/UA70603U/en
Publication of UA70603UpublicationCriticalpatent/UA70603U/en
A grain separator, in which hatch on a manhole for maintenance of a lower sieve, from its inner side there are two areas of screw surfaces with mutually opposite inclination and abutment to each other in the upper part of manhole.