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7503373 |
Partition mount
In a spring-loaded curtain mount, the mount includes a pole interface at a proximal end, a compressive mechanism, and a head at a distal end. The pole interface is adapted to receive the end of a...
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7108040 |
Partition mount
In a spring-loaded curtain mount, the mount includes a pole interface at a proximal end, a compressive mechanism, and a head at a distal end. The pole interface is adapted to receive the end of a...
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7073758 |
Pole clamp for partition mount
A partition mounting system a system mitigates or eliminates sag, or gaps, between an installed curtain and an abutting surface such as a wall or ceiling. The system accomplishes this in a manner...
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6056638 |
Mine ventilation wall construction
A ventilation passage system for a mine having a main shaft from which several branch shafts may extend, wherein each shaft has a generally flat floor and ceiling, the system being constructed of a...
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5934990 |
Mine stopping
A mine tunnel ventilation control device and method for constructing same quickly with an easily transportable matrix material to provide a rigid flame retardant barrier wall. The air flow stopping...
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5782690 |
Curtain fire damper
A damper door system that includes an opening in a planar wall, a retractable damper door and a track extending through said opening. The damper door includes slots that are conformable to the...
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5683294 |
Temporary brattice for mines
A brattice for temporary or emergency use in underground mining provides a quickly and easily installable partition to close off drifts or tunnels as desired to control ventilation through the mine...
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5308280 |
Method and apparatus for supporting ventilation curtains in coal mines
A hanger for a coal mine ventilation curtain has a support that is compressed against the mine surface, trapping the edge of a sheet of ventilation curtain material between a curtain supporting...
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4770086 |
Portable ventilation safety device
Ventilation safety apparatus for extending toward a mine face from a supported area includes a collapsible frame supported on the mine floor, the supports for the frame being connected by a beam,...
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4612848 |
Method and apparatus for moving air across a mineral face
A compact, collapsible and automatically expansible mining canvas is constructed and arranged so that a mine worker may stand under a supported roof section and extend into a newly sumped coal...
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4607568 |
Extensible line brattice
This invention pertains to an extensible line brattice which comprises a track system and an extensible brattice frame with an attached brattice cloth cover mounted on said track system for...
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4542681 |
Mine ventilation line curtain extender
A supporting structure by which the line curtain in a mine ventilation system can be extended in a cantilevered fashion from the last permanent roof support adjacent the working face of the mine so...
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4494894 |
Extensible brattice support system for mine face ventilation
A mobile support system for an underground mine brattice curtain which extends the ventilation control of a conventional line brattice. Three embodiments are disclosed for the support system...
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4440070 |
Mobile adjustable curtain apparatus for use in room and pillar coal mining ventilation system
A section of brattice is mounted on a centrally-wheeled cart. This brattice has a frame that permits the curtain section to be extended and retracted vertically, in order to reduce its height for...
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4398451 |
Method of ventilating underground mines and improved brattice cloth construction useful therein
An improved brattice cloth construction and method of utilizing the same in the ventilation of underground mines comprising a coherent, strong felt formed from a thick batting or mat of textile...
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4282802 |
Slideboard device for underground mine face ventilation
A slideboard for underground mine face ventilation which acts as an extension of a line brattice. When used, the slideboard is advanced towards the working face of the mine to provide an inlet for...
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4180352 |
Extensible brattice and cantilevered roof mounted support system therefor
An extensible brattice and cantilevered support system therefor comprises a brattice panel having first and second top sleeves and a weighted bottom sleeve suspended from selected roof bolts by a...
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4175481 |
Mine ventilation system and elements thereof
This invention relates to a ventilation system and more particularly to means for restraining a ventilation control curtain composed of a post like members formed of an elongate containers of...
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4023372 |
Means to seal-off portions of underground mines and the like
An apparatus for sealably closing off or separating portions of a mine for safety or other reasons including an inflatable member having a size and shape which corresponds substantially to the...
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4009649 |
Mine ventilation control device
The invention relates to a mine stopping for underground mines which may be readily mounted within a mine airway to form a gas-tight seal to control the flow of fresh air to the working face of the...
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3977312 |
Parachute stopping for mine ventilation use
A parachute-type mine stopping used in ventilation control comprises a parachute-like canopy suspended from straps or lines secured to a roof bolt or the like. After the lines are so secured, the...
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3863554 |
PORTABLE MINE STOPPINGS
This disclosure relates to a portable stopping for blocking crosscuts in mine entries to facilitate ventilation thereof. The stopping consists of a sheet of fire-resistant, gas impervious flexible...
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3747503 |
MINE VENTILATION CONTROL SYSTEM
A ventilation control system consisting of a gas impervious air directing curtain for directing the flow of air within a mine in combination with end supporting assemblies with the air directing...
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3464756 |
VENTILATION CONTROL SYSTEM
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3306180 |
Apparatus for supporting mine brattices
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3206187 |
Swinging check curtain
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3006267 |
Mine fly pad
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2947239 |
Ventilation control system
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