Ventilated mine roof support

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9903203
SERIAL NO

15435871

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Importance

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Abstract

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A longitudinally yieldable support for underground roof support includes first and second outer shell portions having a first wall thickness and a third outer shell portion having a second wall thickness that is greater than the first wall thickness. The support is filled with a solid compressible filler material. At least one air ventilation tube extends between opposite sides of the third outer shell portion to allow a flow of air through the support as the first and second outer shell portions and filler material therein yield under load.

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Patent Owner(s)

  • BURRELL MINING PRODUCTS, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shook, Michael T New Kensington, US 6 20

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