Drill pipe protector

Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C166S241600

Reexamination Certificate

active

07055631

ABSTRACT:
A drill pipe protector having a tubular sleeve that is attached to a section of drill pipe and resides over the outer diameter of the drill pipe while moving within an associated well casing or well hole. The sleeve has low-friction end pads positioned on the ends of the sleeve to reduce friction between the ends of the sleeve and the end of an adjacent thrust bearing collar used to hold the sleeve in place on the drill pipe.

REFERENCES:
patent: 1903467 (1933-04-01), MacClatchie
patent: 2281632 (1942-05-01), Steps
patent: 2318878 (1943-05-01), Miller
patent: 2657956 (1953-11-01), Hall, Sr.
patent: 2715552 (1955-08-01), Lane
patent: 2739018 (1956-03-01), Collett
patent: 2776111 (1957-01-01), Vance
patent: 3103391 (1963-09-01), Leathers
patent: 3292705 (1966-12-01), Hall, Sr.
patent: 3410613 (1968-11-01), Kuus
patent: 3528499 (1970-09-01), Collett
patent: 3675728 (1972-07-01), Faulk et al.
patent: 3982594 (1976-09-01), Berthiaume
patent: 4043410 (1977-08-01), Bennett et al.
patent: 4083612 (1978-04-01), Olson
patent: 4199853 (1980-04-01), Fricker
patent: 4266578 (1981-05-01), Swain et al.
patent: 4361193 (1982-11-01), Gravley
patent: 4398772 (1983-08-01), Odell
patent: 4428441 (1984-01-01), Dellinger
patent: 4467879 (1984-08-01), Burge
patent: 4543998 (1985-10-01), Thomerson
patent: 4601334 (1986-07-01), Lovegrove
patent: 4630691 (1986-12-01), Hooper
patent: 4690229 (1987-09-01), Raney
patent: 4708203 (1987-11-01), Walker
patent: 4709462 (1987-12-01), Perkin et al.
patent: 4796670 (1989-01-01), Russell et al.
patent: 4823891 (1989-04-01), Hommani et al.
patent: 4842083 (1989-06-01), Raney
patent: 4984633 (1991-01-01), Langer et al.
patent: 5069284 (1991-12-01), Gray
patent: 5069297 (1991-12-01), Krueger, deceased et al.
patent: 5542454 (1996-08-01), Carlson et al.
patent: 5803193 (1998-09-01), Krueger et al.
patent: 5833018 (1998-11-01), von Gynz-Rekowski
patent: 5901798 (1999-05-01), Herrera et al.
patent: 6250405 (2001-06-01), Moore et al.
patent: 2083102 (1982-03-01), None
patent: WO 95/10685 (1995-04-01), 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

Drill pipe protector does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-3631208

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