Heat Resistant Insulation Seal for Mine Doors and Accesses
OwnerStirl R. Smithinventor
Life of this patent
Estimating the term…
Abstract
An improved seal for a mine door. According to a preferred embodiment of the invention, a heavy weight woven glass fiber sheet is attached to a heavy rubber backing. The enhanced sealing and fire resistance of the seal can provide air flow control in a mine while being able to survive the hazardous environment of the mine.
Claims18
A door comprising:
- a first, substantially planar surface and a perimeter around said first planar surface;
- a seal affixed to at least a portion of said planar surface;
- said seal includes a fire resistant material selected from the group consisting of woven glass fiber, NOMEX, carbon fiber, and PYROBLANKET.
The door of claim 2, wherein said seal further comprises a rubber backing behind said seal to increase the air impermeability of said seal.
A mine door for installation in a passageway in a mine formed by a door frame installed in the passageway of a mine, said mine door comprising:
- a door frame adapted to be hingedly attached to the door frame and installed in the passageway to define a doorway;
- a mine door having a generally planar surface fabricated from metal and a perimeter surface surrounding said planar surface;
- and
- a seal mounted on at least one planar or perimeter surface of the mine door, said seal being formed of woven glass fiber attached to a rubber backing.
A mine door for installation in a passageway in a mine formed by a door frame installed in the passageway of a mine, said mine door including a seal formed of woven fiber attached to a rubber backing.
Dependencies are inferred from the claim text.