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2023
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Invention
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Latch assembly for a mine door and a mine door having such an assembly. A latch assembly for a do... |
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2019
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Invention
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Jack for installing mine stopping. A jack for installing a mine stopping panel includes an extend... |
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Invention
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Mine stopping and components thereof. A mine stopping and associated components and methods. The ... |
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2017
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Invention
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Mine stopping panel and method of sealing a mine stopping. A mine stopping panel for installation... |
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2016
|
Invention
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Articulated mine door opening mechanism. A mine door system which includes a mine door having a d... |
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Invention
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Mine door. A reinforced lightweight mine door for installation in a mine passageway. The mine doo... |
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Invention
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Mine stopping panel with end caps and louver connections. A mine stopping panel is disclosed. The... |
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2015
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Invention
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A mine ventilation structure and a deck panel for such a structure. A mine ventilation structure ... |
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Invention
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Mine ventilation structure and a deck panel for such a structure. A mine ventilation structure is... |
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Invention
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Mine stopping panel and method of manufacture. A mine stopping panel and method of making it are ... |
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2013
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Invention
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Box check for conveyor belt and method of installation. A conveyor belt box check for installatio... |
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2011
|
Invention
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High-strength anchor system, safe room bulkhead, and method of anchoring a support to mine strata... |
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Invention
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Articulated mine door opening mechanism. A method of opening a mine door leaf installed in a mine... |
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2010
|
Invention
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Articulated mine door opening mechanism. A mine door system comprising at least one mine door lea... |
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2009
|
Invention
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Reinforced mine ventilation device. A mine ventilation and bridge structure incorporating a bridg... |
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Invention
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Mine seal with electrically non-conductive ties. A mine seal comprising two spaced apart walls, a... |
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2008
|
Invention
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Mine refuge. A mine refuge for use in a mine includes a chamber having an interior space sized an... |
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2007
|
Invention
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Hydraulically powered door and systems for operating same in low-temperature environments. A hydr... |
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Invention
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Jack for carrying and installing mine panels. A jack includes a base, a guide extending from the ... |
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Invention
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Mine refuge. A mine refuge for use in a mine includes a chamber sized and shaped for occupancy by... |
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2005
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Invention
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Energy usage control for a building. Controlling energy usage of a building. At least one tempera... |
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Invention
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Control system for pneumatically-powered door installation. A mine door installation has a frame ... |
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Invention
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Differential temperature display system. A differential temperature display system for balancing ... |
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Invention
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Air deflecting mine ventilation structure. A mine ventilation structure is incorporated at the in... |
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2004
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Invention
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Mine door system with trigger-actuated latch mechanism. A mine door system for closing a mine doo... |
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Invention
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Mine ventilation panel system. A panel system for making mine ventilation structures. The panel s... |
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Invention
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Permanent stopping form and method of installing same. A form installed in a mine for making a pe... |
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2003
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Invention
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Pneumatically-powered mine door installation with hydraulic checking system. A mine door assembly... |
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|
Invention
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Mine door system including an air pressure relief door. A mine door of the present invention is a... |
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Invention
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Mine stopping and braces therefor. A mine stopping installed in a mine passageway includes a plur... |
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Invention
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Multiple tier stopping and method of constructing stopping. A mine stopping installed in a mine p... |
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2002
|
Invention
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Mine ventilation. A mine air crossing includes opposite side walls and a deck extending from side... |
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Invention
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Mine door installation. A power mine door installation utilizing compressed air from the compress... |
