Free-wheeling-resistant rolls for mining roof support and the combination of a mining machine and such rolls
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 28, 2017
Grant Date -
Nov 6, 2014
app pub date -
May 9, 2014
filing date -
Oct 28, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A roll of grid material for mine roof support, and a mining machine in combination with such a roll, in which the roll has bands of adhering material injected or otherwise forced into the roll in spaced locations along the roll's width. The adhering material interconnects the overlapped layers within the roll and is sufficiently strong to hold the grid material in the rolled configuration for transport and storage, and yet is readily pulled apart in response to sufficient manual or mechanical pressure applied against the roll, or tension applied to the unwound portion thereof, so as to enable the grid material to be incrementally unwound and installed in the mine. The rolls can be installed using a range of mining machines without need for any specialized dispensing or other apparatus mounted on the machine and without the need for any mechanical device to control unwinding.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2014 Application Filing Year
- E21D Class
- 67 Applications Filed
- 60 Patents Issued To-Date
- 89.56 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- E21D Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 28, 2028 |
