| 发明名称 |
DEVICE FOR DETERMINATION OF GAS CONTENT OF COAL SEAMS |
| 摘要 |
Device for determination of gas content of coal seams includes movable drill rod with cutter and tightening device with inflatable sealing rubber cavity restricted with two flanges. On one of the flanges cup is fixed for selection of drill fines and bushing with rubber back valve, and at the other one threaded stopper is mounted. |
| 申请公布号 |
UA46989(U) |
申请公布日期 |
2010.01.11 |
| 申请号 |
UA20090008081U |
申请日期 |
2009.07.31 |
| 申请人 |
UKRAINIAN STATE SCIENTIFIC-RESEARCH AND DESIGNINGINSTITUTE OF MINING GEOLOGY, GEO-MECHANICS AND MINE SURVEY |
发明人 |
ANTSYFEROV ANDRII VADYMOVYCH;HALEMSKYI PAVLO VIACHESLAVOVYCH;KANIN VOLODYMYR OLEKSIIOVYCH;KHODYREV YEVHEN DMYTROVYCH |
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