Cable attachable device to monitor roof loads or provide a yieldable support or a rigid roof support fixture
US5253960A · kind A · utility
29Cited by
2References
10Claims
0Family size
Inventor
Key dates
| Filing date | Aug 10, 1992 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Aug 10, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D21/006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cable attachment assembly having an anchor mechanism for gripping a tension member anchored in a bore hole in a mine roof, and a roof plate mounted on the anchor mechanism in positions for observing the support being offered to the mine roof, or the yielding response of the roof plate on the anchor mechanism, or for monitoring the load-yield relationship of the anchor mechanism relative to the tension member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.