FILLING PILLAR FOR FILLING UP WORKINGS SUPPORTED WITH POWERED ROOF SUPPORT,申请号SU19874202246-传众专利搜索

发明名称	FILLING PILLAR FOR FILLING UP WORKINGS SUPPORTED WITH POWERED ROOF SUPPORT
摘要	<p>A dam for backfilling longwall workings comprises powered props having a bearing structure in the form a net, containers 4 of filtrating cloth 5 mounted on each of the sets of the support and, above these containers, guide rollers 7 and guards 8. <IMAGE></p>
申请公布号	SU1678216(A3)	申请公布日期	1991.09.15
申请号	SU19874202246	申请日期	1987.04.01
申请人	BYTOMSKE-RUDZKE GVARETSTVO VENGLOVE (INOPREDPRIYATIE);PANSTVOVE PSHEDSEMBIORSTVO VELOZAKLADOVE (INOPREDPRIYATIE);KOPALNYA VENGLYA KAMENNOGO NOVY VIREK (INOPREDPRIYATIE)	发明人	YAN STROJNY,PL;VIKTOR VOZNYAK,PL;ANTONI KANDZYA,PL;NORBERT KOSTOZH,PL;ZBIGNEV YAGLARZH,PL;ROBERT ROSHCHIK,PL
分类号	E21D23/03;E21F15/02;E21F15/04	主分类号	E21D23/03
代理机构		代理人
主权项
地址