Hole opener assembly and a cone arm forming a part thereof

Details Hole opener assembly and a cone arm forming a part thereof Hole opener assembly and a cone arm forming a part thereof

2009-02-13

2010-12-07

Gay, Jennifer H (Department: 3676)

Boring or penetrating the earth

Bit or bit element

Plural separable cutter elements

C175S385000, C175S367000, C175S357000

Reexamination Certificate

active

07845437

ABSTRACT:
An improved hole opener assembly for horizontal drilling is disclosed that is less prone to failure as a result of cone arm break out or pocket side wall fracture. The interface between the cone arm and the pocket employs a key and slot configuration with a tighter fit than between the arm and the pocket to reduce the stress on the pocket side wall during drilling.

REFERENCES:
patent: 4406337 (1983-09-01), Dill
patent: 4445580 (1984-05-01), Sahley
patent: 4700790 (1987-10-01), Shirley
patent: 5224560 (1993-07-01), Fernandez
patent: 5439068 (1995-08-01), Huffstutler et al.
patent: 5595255 (1997-01-01), Huffstutler
patent: 5624002 (1997-04-01), Huffstutler
patent: 5641029 (1997-06-01), Beaton et al.
patent: 5678645 (1997-10-01), Tibbitts et al.
patent: 5906245 (1999-05-01), Tibbitts et al.
patent: 6729418 (2004-05-01), Slaughter et al.
patent: 6742608 (2004-06-01), Murdoch
patent: 6902014 (2005-06-01), Estes
patent: 7025155 (2006-04-01), Estes
patent: 7137460 (2006-11-01), Slaughter et al.
patent: 7152702 (2006-12-01), Bhome et al.
patent: 7341119 (2008-03-01), Singh et al.
patent: 7360612 (2008-04-01), Chen et al.
patent: 7458430 (2008-12-01), Fyfe
patent: 2006/0260848 (2006-11-01), Fyfe
patent: 2010/0206638 (2010-08-01), Bielawa et al.

Affiliated with

Also associated with

Rating

Hole opener assembly and a cone arm forming a part thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hole opener assembly and a cone arm forming a part thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hole opener assembly and a cone arm forming a part thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4188429