Patent Profile
| Patent No: | US9267375 [USA] | Application No: | 13/579,631 |
| Title: | Device for roof support of underground mine/tunnel | ||
| Issue Date: | 23-02-2016 | File Date: | 31-01-2011 |
| Inventor(s): | Kashyap Sudhir Kumar; Sinha Amalendu | ||
| IPC Classification: | E21D15/00, E21D15/46, E21D15/58, E21D15/56 | ||
| Abstract: | The present invention provides a device useful for supporting underground mine/tunnels. The device continuously monitors the roof load coming over the canopy and correspondingly yielding/convergence indicated by the pointer on graduate scale. The roof load coming on the canopy (9) is transmitted to the prop via a set of steel disc springs (5) to increase the yielding and longevity of the present device. The present invention has mechanism for preloading upto the desired load. It is a simple, easily transportable and user friendly device having quick release mechanism from a safe distance. |
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| Startup Options: | a)All the components in device are detachable hencet installation, dismantlement and transportation of device can be performed quickly and easliy. b)Timber is replaced completely, thus ecological balance is maintained. c)No wedging is required. d)Facilities for giving proper setting load are provided. e)The maintenance cost of compact, robust device is reduced. f)Durability of the device is improved. f) The device is very cost effective . g)The roof load can be monitored continuously with attached pointer, so that no separate measuring instrument is required. | ||
CSIR-Central Institute of Mining and Fuel Research[CSIR-CIMFR]
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: director[at]cimfr[dot]res[dot]in
:91-326-2296023
:https://www.cimfr.nic.in
Industrial Applications
Mining Equipment [Mining and Minerals]