公开(公告)号：US5634721A

公开(公告)日：1997-06-03

申请号：US405515

申请日：1995-03-16

申请人： Robin I. Moore

发明人： Robin I. Moore

IPC分类号： B60P7/06 ,  B61D45/00 ,  B65D30/08 ,  E21D15/48 ,  B65D81/02

CPC分类号： E21D15/483 ,  B60P7/065 ,  B61D45/008 ,  B65D31/04

摘要： A high pressure bag for pre-stressing a support pack in an underground mine has a fluid impervious liner and three tubular envelopes. The liner is located in the first envelope with end portions of the first envelope and edge strips of the liner folded over underneath the first envelope. The first envelope with the liner therein are in the second envelope, with end portions of the second envelope folded over on top of the second envelope. The second envelope is located within the third envelope which has opposed edges stitched closed. The liner has a nozzle which extends through openings in the envelopes.

摘要翻译： 用于在地下矿井中预应力支撑包的高压袋具有不透液体的内衬和三个管状信封。 衬套位于第一封套中，第一封套的端部和衬里的边缘条折叠在第一封套的下方。 其中具有衬垫的第一封套位于第二封套中，第二封套的端部折叠在第二封套的顶部上。 第二个信封位于第三个封套内，其中相对的边缘缝合封闭。 衬里具有延伸穿过信封中的开口的喷嘴。