Downhole drilling tool

Boring or penetrating the earth – With below-ground tool drive prime mover – With positive connection between tool and support shaft for...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C175S320000

Reexamination Certificate

active

07377337

ABSTRACT:
A downhole drilling tool136comprises a drillstring138, a drilling head140, and a freewheel144for transferring drive from the drillstring to the drilling head. The freewheel144is positioned between the drillstring138and the drilling head140.

REFERENCES:
patent: 2167019 (1939-07-01), Yost
patent: 2915156 (1959-12-01), Horn
patent: 2978047 (1961-04-01), De Vaan
patent: 3432016 (1969-03-01), Votg
patent: 3767019 (1973-10-01), Wingler
patent: 4232751 (1980-11-01), Trzeciak
patent: 4276944 (1981-07-01), Geczy
patent: 4295535 (1981-10-01), Crase et al.
patent: 4386666 (1983-06-01), Crase et al.
patent: 4427079 (1984-01-01), Walter
patent: 4901836 (1990-02-01), Stenmark et al.
patent: 5350242 (1994-09-01), Wenzel
patent: 6073741 (2000-06-01), Liu
patent: 6182774 (2001-02-01), Tibbits
patent: 7121391 (2006-10-01), Kuo
patent: 2004/0045783 (2004-03-01), Lew et al.
patent: 2256069 (2000-06-01), None
patent: 532740 (1941-01-01), None
patent: 2303658 (1997-02-01), None
patent: 08177888 (1996-07-01), None
patent: 08291782 (1996-11-01), None
patent: WO 02/35111 (2002-05-01), None
patent: WO2005/003505 (2005-01-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Downhole drilling tool does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-2789125

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.