|
2022
|
Invention
|
Latch assembly for a mine door and a mine door having such an assembly. A latch assembly for a do... |
|
2019
|
Invention
|
Jack for installing mine stopping. A jack for installing a mine stopping panel includes an extend... |
|
|
Invention
|
Mine stopping and components thereof. A mine stopping and associated components and methods. The ... |
|
2017
|
Invention
|
Mine stopping panel and method of sealing a mine stopping. A mine stopping panel for installation... |
|
2016
|
Invention
|
Articulated mine door opening mechanism. A mine door system which includes a mine door having a d... |
|
|
Invention
|
Mine door. A reinforced lightweight mine door for installation in a mine passageway. The mine doo... |
|
|
Invention
|
Mine stopping panel with end caps and louver connections. A mine stopping panel is disclosed. The... |
|
2015
|
Invention
|
Mine ventilation structure and a deck panel for such a structure. A mine ventilation structure is... |
|
|
Invention
|
Mine stopping panel and method of manufacture. A mine stopping panel and method of making it are ... |
|
2013
|
Invention
|
Box check for conveyor belt and method of installation. A conveyor belt box check for installatio... |
|
2010
|
Invention
|
High-strength anchor system, safe room bulkhead, and method of anchoring a support to mine strata... |
|
|
Invention
|
Articulated mine door opening mechanism. A mine door system comprising at least one mine door lea... |
|
2009
|
Invention
|
Reinforced mine ventilation device. A mine ventilation and bridge structure incorporating a bridg... |
|
|
Invention
|
Mine seal with electrically non-conductive ties. A mine seal comprising two spaced apart walls, a... |
|
2008
|
Invention
|
Mine refuge. A mine refuge for use in a mine includes a chamber having an interior space sized an... |
|
2007
|
Invention
|
Hydraulically powered door and systems for operating same in low-temperature environments. A hydr... |
|
|
Invention
|
Jack for carrying and installing mine panels. A jack includes a base, a guide extending from the ... |
|
|
Invention
|
Mine refuge. A mine refuge for use in a mine includes a chamber sized and shaped for occupancy by... |
|
2005
|
Invention
|
Energy usage control for a building. Controlling energy usage of a building. At least one tempera... |
|
|
Invention
|
Control system for pneumatically-powered door installation. A mine door installation has a frame ... |
|
|
Invention
|
Differential temperature display system. A differential temperature display system for balancing ... |
|
|
Invention
|
Air deflecting mine ventilation structure. A mine ventilation structure is incorporated at the in... |
|
2004
|
Invention
|
Mine ventilation panel system. A panel system for making mine ventilation structures. The panel s... |
|
|
Invention
|
Permanent stopping form and method of installing same. A form installed in a mine for making a pe... |
|
2003
|
Invention
|
Mine door system with trigger-actuated latch mechanism. A mine door system for closing a mine doo... |
|
|
Invention
|
Pneumatically-powered mine door installation with hydraulic checking system. A mine door assembly... |
|
|
Invention
|
Mine door system including an air pressure relief door. A mine door of the present invention is a... |
|
|
Invention
|
Mine stopping and braces therefor. A mine stopping installed in a mine passageway includes a plur... |
|
|
Invention
|
Multiple tier stopping and method of constructing stopping. A mine stopping installed in a mine p... |
|
2002
|
Invention
|
Mine ventilation. A mine air crossing includes opposite side walls and a deck extending from side... |
|
|
Invention
|
Mine stopping. A mine stopping installed in a mine passageway includes a rigid wall extending acr... |
|
|
Invention
|
Method of supporting mine walls and installing a mine stopping. A method of supporting opposite f... |
|
|
Invention
|
Mine door installation. A power mine door installation utilizing compressed air from the compress... |
|
|
Invention
|
Mine ventilation structure and deck panels therefor. A mine ventilation structure with a deck mad... |
|
2001
|
Invention
|
Mine door leaf and method of manufacture thereof. A mine door leaf of hollow construction with th... |
|
2000
|
Invention
|
Mine stopping. A mine stopping installed in a mine passageway having air flowing through the pass... |
|
|
Invention
|
Mine ventilation. A tunnel-forming overcast structure for incorporation in the installation of an... |
|
1999
|
Invention
|
Mine stopping, method of constructing same and panels thereof. A permanent mine stopping comprisi... |
|
1998
|
Invention
|
Mine stopping having a swinging door. A mine stopping comprising a wall extending across a passag... |
|
|
Invention
|
Door system for a mine stopping. A door system for closing a doorway in a mine stopping includes ... |
|
|
Invention
|
Method of sealing off a mine passageway. A method of sealing off a mine passageway. The method in... |
|
|
Invention
|
Yieldable mine roof support. A mine roof support (10) designed to extend vertically in a mine pas... |
|
1997
|
Invention
|
Yieldable mine roof support. A mine roof support designed to extend vertically in a mine passagew... |
|
1996
|
Invention
|
Method of and apparatus for reducing sulfur in combustion gases. A method for reducing the sulfur... |
