Pipe joints or couplings – Molded joint – Interlocked
Patent
1980-11-21
1983-11-22
Callaghan, Thomas F.
Pipe joints or couplings
Molded joint
Interlocked
285333, F16L 1500
Patent
active
044164769
ABSTRACT:
An intermediate weight drill stem member having a tool joint or end with at least one reduced diameter surface for hoisting and handling protected by an enlarged diameter wear protecting length on either side thereof and providing at its junction end with the tubular body a straight-wall surface, a length having a diameter less than the maximum diameter of the adjacent enlarged length, for welding to a straight-wall length of the contiguous externally upset end of the tubular body. The tubular body is preferably about twenty feet long compared to a combined length of ten feet for the two tool joints, thereby eliminating a need for an intermediate wear protector length along the tubular body length.
REFERENCES:
patent: 2073093 (1937-03-01), Brantly
patent: 2259232 (1941-10-01), Stone
patent: 2301495 (1942-11-01), Abegg
patent: 2664272 (1953-12-01), Boice
patent: 2676820 (1954-04-01), Boice
patent: 2969845 (1961-01-01), Hester
patent: 3080179 (1963-03-01), Huntsinger
patent: 3152458 (1964-10-01), Simonin
patent: 3193918 (1965-07-01), Heldenbrand
patent: 3458922 (1969-08-01), Schellstede et al.
patent: 3484122 (1969-12-01), Schellstede et al.
patent: 3773359 (1973-11-01), Chance et al.
patent: 3784238 (1974-01-01), Chance et al.
patent: 4240652 (1980-12-01), Wong et al.
API Standards, FIGS. 10.4, 10.7, 10.3, 10.2, 6.8, 6.6, Current.
Drilco Catalog, p. 2503, Copyright 1979.
Reed Hester Drill Pipe Saver Advertisement, Date Unknown, Reed Roller Bit Co.
Callaghan Thomas F.
Oncor Corporation
LandOfFree
Intermediate weight drill stem member does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Intermediate weight drill stem member, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intermediate weight drill stem member will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1811561