Modular system for a back reamer and method

Details Modular system for a back reamer and method Modular system for a back reamer and method

2006-12-26

2006-12-26

Bagnell, David (Department: 3672)

Boring or penetrating the earth

Bit or bit element

Adjustable cutter element

C175S413000, C175S406000, C408S186000

Reexamination Certificate

active

07152702

ABSTRACT:
A modular back reamer to be used in subterranean drilling includes a drive stem, a reamer body having a plurality of receptacles, wherein the receptacles are configured to retain a cutting leg assembly, and a plurality of shims engaged within the receptacles to secure the cutting leg assemblies at a specified height.

REFERENCES:
patent: 5560440 (1996-10-01), Tibbitts
patent: 6609580 (2003-08-01), Beaton
patent: 6729418 (2004-05-01), Slaughter et al.
patent: 6902014 (2005-06-01), Estes

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