Drilling assembly, drilling reamer arm assembly, and methods...

Details Drilling assembly, drilling reamer arm assembly, and methods... Drilling assembly, drilling reamer arm assembly, and methods...

2008-01-15

2010-11-02

Thompson, Kenneth (Department: 3672)

Boring or penetrating the earth

Processes

C175S357000, C175S368000, C175S413000

Reexamination Certificate

active

07823657

ABSTRACT:
This invention includes drilling assemblies, drilling reamer arm assemblies, and methods of drilling. In one implementation, a drilling assembly includes a cutting head apparatus configured to cut into earthen material as the cutting head apparatus is rotated. A drive shaft extends aft of and is configured to rotate the cutting head apparatus. A plurality of reamer arm assemblies projects radially outward of the drive shaft and are mounted for rotation therewith aft of the cutting head apparatus. Individual of the reamer arm assemblies include a radial inner portion extending radially outward of the drive shaft. A radial outer portion connects with and extends radially outward of the radial inner portion. The radial outer portion includes a cutter. At least one breakaway retainer fastens the radial inner and outer portions together and restrains the radial outer portion from moving relative to the radial inner portion towards the cutting head apparatus and the drive shaft. Other aspects are contemplated.

REFERENCES:
patent: 2680597 (1954-06-01), Brown
patent: 5111893 (1992-05-01), Kvello-Aune
patent: 5429198 (1995-07-01), Anderson et al.
patent: 6059051 (2000-05-01), Jewkes et al.
patent: 7083010 (2006-08-01), Eppink et al.
patent: 2004/0159468 (2004-08-01), Hoffmaster et al.
patent: 2004/0222022 (2004-11-01), Nevlud et al.
patent: 2005/0205305 (2005-09-01), Stout et al.
patent: 2007/0095574 (2007-05-01), Savignat
patent: 1625276 (2004-05-01), None
patent: WO PCT/US2009/030995 (2009-08-01), None

Affiliated with

Also associated with

Rating

Drilling assembly, drilling reamer arm assembly, and methods... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drilling assembly, drilling reamer arm assembly, and methods..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drilling assembly, drilling reamer arm assembly, and methods... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4171629