Two section mast with self-aligning connections

Tool driving or impacting – With vehicle support for drive – Drive structure moved to nonuse position for transport

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C173S001000, C173S024000

Reexamination Certificate

active

06994171

ABSTRACT:
A method of self-aligning connections for a two section mast. The method includes the steps of transporting the elongated bottom mast section to a guide frame adjacent to a well site, the bottom mast section having a pair of front legs and a pair of rear legs. An elongated top mast section is transported to the well site, the top mast section having a pair of front legs and a pair of rear legs. The legs of the bottom mast section are positioned slightly below a level of the legs of the top mast section. Thereafter, the bottom mast section is raised slightly to order to engage the top mast section while simultaneously aligning the mast sections together. The sections are thereafter pinned together.

REFERENCES:
patent: 2857993 (1958-10-01), Terrell
patent: 4021978 (1977-05-01), Busse et al.
patent: 4134237 (1979-01-01), Armstrong
patent: 4371041 (1983-02-01), Becker et al.
patent: 4489526 (1984-12-01), Cummins
patent: 4753300 (1988-06-01), Shaw et al.
patent: 4821814 (1989-04-01), Willis et al.
patent: 4821816 (1989-04-01), Willis
patent: 4831795 (1989-05-01), Sorokan
patent: 4885893 (1989-12-01), Wasterval et al.
patent: 4899832 (1990-02-01), Bierscheid, Jr.
patent: 5107940 (1992-04-01), Berry
patent: 5381867 (1995-01-01), Berry
patent: 5755296 (1998-05-01), Richardson et al.
patent: 5794723 (1998-08-01), Caneer, Jr. et al.
patent: 6024181 (2000-02-01), Richardson et al.
patent: 6257349 (2001-07-01), Bardwell
patent: 6594960 (2003-07-01), Brittain et al.
patent: 6860337 (2005-03-01), Orr et al.
patent: 2003/0051915 (2003-03-01), Brittain et al.
patent: 2004/0129417 (2004-07-01), Nelson et al.
patent: 2004/0211598 (2004-10-01), Palidis
patent: 2004/0231857 (2004-11-01), Kainer et al.

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

Two section mast with self-aligning connections does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two section mast with self-aligning connections, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two section mast with self-aligning connections will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3690501

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