Mine seal and method of construction for high resistance to transverse loads
US10329911B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2014 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Feb 7, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F17/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mine seal or wall capable of retaining its integrity under a transverse load. The mine seal is constructed of a plurality of interlocking masonry blocks. The interlocking blocks include a body with a top surface, planar sides, planar ends, and a bottom surface. A top shear lug extends longitudinally along the top of the block. An end shear lug extends vertically along each end of the block. The bottom surface and each end of the block includes a groove therein. When stacked end to end in successive rows, the top and end shear lugs of each interlocking block engage the complimentary grooves in the adjacent blocks thereby enabling the blocks to self-align vertically and lock together as they are stacked. The resulting mine seal exhibits a high resistance to transverse loads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.