Patent application number | Description | Published |
20100144264 | UNDERGROUND MINE VENTILATION CURTAIN OR BARRIER - A mine ventilation curtain ( | 06-10-2010 |
20100209023 | MINE SUPPORT GROUT BAGS AND PACKS - A grout bag ( | 08-19-2010 |
20100284752 | GROUT PACK ASSEMBLY - The invention provides a grout pack assembly having a plurality of elongate elements shaped to extend about a grout pack and which are characterized in that they are configured to control circumferential expansion of the grout pack beyond the expansion permitted through material yield of the elements. | 11-11-2010 |
20110222970 | MINE SUPPORT GROUT PACKS - A grout pack is provided comprising a grout bag and a restraining envelope encircling the grout bag. The restraining envelope includes multiple elongate tension elements made of a multitude of fibres twisted, braided or woven to form confinement tension elements for operatively supporting the grout bag. The restraining envelope may include an inner mesh layer positioned on the inside of the elongate tension elements which may assume the form of containment rings encircling the grout bag at spaced positions up the height of the grout pack. Alternatively, or in addition, at least some elongate tension elements may extend in generally helical directions of opposite hand in the installed condition of the grout pack. The tension element may assume the form of a rope or a length of webbing. The ends of the rope or webbing may be joined in a manner providing for controlled slipping of overlapping ends thereof. | 09-15-2011 |
20120181268 | REFRIGERATED FREIGHT CONTAINER - A refrigerated freight container is provided comprising thermally insulated sidewalls [ | 07-19-2012 |
20120193907 | PIPE COUPLING COVER - A cover is provided for a pipe coupling ( | 08-02-2012 |