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02/14/08 - USPTO Class 175 |  77 views | #20080035389 | Prev - Next | About this Page  175 rss/xml feed  monitor keywords

Roof mining drill bit

USPTO Application #: 20080035389
Title: Roof mining drill bit
Abstract: In one aspect of the invention a rotary mine roof drilling apparatus has an arm attached to and intermediate a drill bit and a platform. The apparatus also has a thrusting mechanism adapted to push the drill bit into a mine roof. The drill bit has a bit body intermediate a shank and a working surface. The working surface has a cutting element with a carbide substrate bonded to a diamond working end with a pointed geometry; and the diamond working end has a 0.050-0.200 inch apex radius. (end of abstract)



Agent: Tyson J. Wilde Novatek International, Inc. - Provo, UT, US
Inventors: David R. Hall, Ronald Crockett
USPTO Applicaton #: 20080035389 - Class: 175434 (USPTO)

Roof mining drill bit description/claims


The Patent Description & Claims data below is from USPTO Patent Application 20080035389, Roof mining drill bit.

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Drill bit nozzle
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Dimensioning and weighing system
Industry Class:
Boring or penetrating the earth

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