Pipe joints or couplings – With lubrication
Patent
1992-04-20
1994-11-01
Arola, Dave W.
Pipe joints or couplings
With lubrication
285328, 285334, 285422, F16L 2500
Patent
active
053602390
ABSTRACT:
Threaded tubular interference fit interconnections and related production techniques are disclosed that are for example useful with large diameter tubular members, including pipe bodies, that can for example function as casing for oil, gas, geothermal, disposal and other wells. In a preferred aspect of the invention there is root-to-crest and/or flank-to-flank interference between nose and inner portions of male and female threads of the disclosed interconnections, such as substantially to seal them against leakage at the maximum internal and/or external pressure rating of the pipe body, and a run-out portion of the male thread and a corresponding portion of the female thread engage one another with interference to retain threaded engagement between said run-out and corresponding portions at the maximum axial force rating of the pipe body and also at the maximum internal and/or external pressure rating of the pipe body. These connections, when applied to API line pipe or other tubular products, can allow them to properly function as large diameter casing exhibiting easy and economical manufacture with existing machinery, easy installation in the field, good balance between geometric and load capacity transparency, and freedom from some undesirable characteristics of prior products.
REFERENCES:
patent: 2177100 (1939-10-01), Frame
patent: 4384737 (1983-05-01), Reusser
patent: 4582348 (1986-04-01), Dearden et al.
patent: 4629223 (1986-12-01), Dearden et al.
patent: 4707001 (1987-11-01), Johnson
Antares Marketing, S.A.
Arola Dave W.
LandOfFree
Threaded tubular connection does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Threaded tubular connection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Threaded tubular connection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1798206