Roof Mining Drill Bit

a drill bit and roof technology, applied in drill bits, earthwork drilling and mining, construction, etc., can solve the problems of reducing or eliminating the efficacy of cutting elements, and reducing or eliminating the stress within the bit. , to achieve the effect of stabilizing the bit as it rotates
US20080035389A1Inactive Publication Date: 2008-02-14NOVATEK IP
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
NOVATEK IP
Publication Date
2008-02-14
Estimated Expiration
Not applicable · inactive patent

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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.
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Description

CROSS REFERENCE TO RELATED APPLICATION

[0001] This application is a continuation-in-part of U.S. patent application Ser. No. 11 / 7766,975 and was filed on Jun. 22, 2007. This application is also a continuation-in-part of U.S. patent application Ser. No. 11 / 774,227 which was filed on Jul. 6, 2007. U.S. patent application Ser. No. 11 / 774,227 is a continuation-in-part of U.S. patent application Ser. No. 11 / 773,271 which was filed on Jul. 3, 2007. U.S. patent application Ser. No. 11 / 773,271 is a continuation-in-part of U.S. patent application Ser. No. 11 / 766,903 filed on Jun. 22, 2007. U.S. patent application Ser. No. 11 / 766,903 is a continuation of U.S. patent application Ser. No. 11 / 766,865 filed on Jun. 22, 2007. U.S. patent application Ser. No. 11 / 766,865 is a continuation-in-part of U.S. patent application Ser. No. 11 / 742,304 which was filed on Apr. 30, 2007. U.S. patent application Ser. No. 11 / 742,304 is a continuation of U.S. patent application Ser. No. 11 / 742,261 which was filed on...

Claims

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