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Class Information
Number: 405/302.3
Name: Hydraulic and earth engineering > Earth treatment or control > Shoring, bracing, or cave-in prevention > Roof support > Mesh support
Description: Subject matter comprising a web of interlocked or intertwined elements or fabric which is secured to an overhead earthen formation in a subterranean cavity to support the roof.










Patents under this class:

Patent Number Title Of Patent Date Issued
8662796 Method and apparatus for lining tunnel walls or tunnel ceilings with protective nets Mar. 4, 2014
8468762 Strut accessory for lining a wall and including membrane clamping claws, and wall lining device including such accessory Jun. 25, 2013
8376660 Mining mesh with double knot Feb. 19, 2013
8197160 Mine roof and rib support with reinforced channel Jun. 12, 2012
8176609 Magnetic cylinder head washer removal tool May. 15, 2012
8137033 Mesh handling system for an underground mining machine and related methods Mar. 20, 2012
7794181 Mine roof and rib support device Sep. 14, 2010
7393060 Grid of synthetic material Jul. 1, 2008
6004077 System for securement of a mesh screening means and method of installation Dec. 21, 1999
5827014 Friction rock stabilizer Oct. 27, 1998
5816750 Automatic grid layout system Oct. 6, 1998
5753337 Plastic net structures and the plastic net structures formed thereby May. 19, 1998
5277520 Grid composite for backfill barriers and waste applications Jan. 11, 1994
5199825 Grid composite for longwall shield recovery in underground coal and trona mines Apr. 6, 1993
4740111 Friction washer for securing a wire mesh screening onto the protruding end of rock bolts Apr. 26, 1988
4699547 Mine truss structures and method Oct. 13, 1987
4666344 Truss systems and components thereof May. 19, 1987
4632605 Method and apparatus for reinforcing and consolidating earth structures Dec. 30, 1986
4413928 Reinforcing and confining earth formation Nov. 8, 1983
4379660 Method of and apparatus for applying mat to the roof of a mine working Apr. 12, 1983
4358159 Apparatus for supporting the roof of an underground mine working Nov. 9, 1982
4251168 Fastening means for roof mats for mine workings Feb. 17, 1981
4245926 Welded grid, primarily for securing underground cavities, cavity systems, as well as process for making the grid Jan. 20, 1981
4230370 Equipment for laying elongate material Oct. 28, 1980
4230371 Equipment for laying a layer of elongate material Oct. 28, 1980
4229043 Cowl arrangements for mining machines Oct. 21, 1980
4122682 Methods of and apparatus for applying roof mats to mine workings Oct. 31, 1978
4099785 Method and apparatus for supporting the roof of an underground mine working Jul. 11, 1978
4003208 Assembly for preventing the fall of dust and debris in a mine Jan. 18, 1977











 
 
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